There are two ways that you can access emails.
POP3 (Post Office Protocol 3) is the traditional delivery method which has been used for many years. Messages are delivered to your web mail server, when your selected device program (typically Outlook) on your PC/Mac/laptop requests a download (send/receive action) the message is delivered to your in-box. You therefore have the entire message (and attachments) sitting on your PC/Mac/laptop so you can archive/reply/forward/delete – in other words it is up to you what you do with it.
Advance settings in most email programs will also allow you to keep a copy of the message on the server but if this is not pre-set the message is automatically deleted from the server when delivered. By keeping a copy of your messages on the server other PC/Mac/laptops/mobile devices can also receive the messages.
The other method of email delivery is IMAP (Interactive Mail Access Protocol). IMAP mail is delivered to the server in the same way as POP3 and then you connect to the server to see your mail. The mail is NOT stored on your local device but remains on the server.
IMAP allows you to access your mail from different devices, usually mobile phones hence its increased popularity. When the message is delivered using IMAP only the header (title/sender info) is visible, when you then click on the email it delivers the content but leaves a copy on the server.
You do not require an internet connection to view your downloaded emails
emails are not saved on the server (unless you activate the advance settings to save a copy) therefore not so likely to be lost should the server crash
server disk usage is minimal
available from any machine you use to access from (account/password required)
messages are stored on the server, so your email cannot be deleted/destroyed if your computer should crash, be stolen, or destroyed
Not available to other devices (unless advance settings are actioned)
Requires 3rd party applications for delivery (ie: Outlook)
You are relying on a 3rd party to archive your messages
Server space is limited
Servers holding your messages are not backed up
You require an internet connection to view your emails
Emails can be deleted if you stop paying the hosting fee
I recently went to Orlando. Before I left I emailed important info to my Android phone (IMAP), when I arrived they had been deleted, when I got back they reloaded!
Last year we lost our broadband connection for 4 weeks but I could continue to work because I had all my email instruction/messages on my local PC (POP3). During this time I had to use a 3G link and had a data download cap. Had I been using IMAP the costs would have increased.
POP3 is great for single, non-mobile devices but you need a 3rd party program to take delivery of your messages, or access to web mail (server). POP3 messages are also delivered in full to your device therefore you have more control over their archive and security
IMAP is the method of choice for mobile devices and multi-users but offers less control over message archiving and security. It also causes issues with high volume users because messages are stored on the mail server which can run out of space, or you could be charged for additional space.
Note: if you use a mobile device only for emails make sure you…
Delete old messages from the server
Use a static device (laptop, PC, Mac) to also store and back-up your messages
We do not back up our mail servers therefore the responsibility for archiving emails is with the client/user.


What is T23?
The Best Selling Vehicle Tracker! T23 is the only tracking device that uses easy to understand landmarks to show it’s location. The location is determined by GPS satellites and you use a regular GSM phone to send and receive text messages from your T23. It is NOT a navigation device, but instead helps you keep your family, friends and assets safe.
Switch To The Best
T23 Vehicle Tracker is the most advanced and best-selling GPS vehicle security product in the world for personal use and fleet management. It's the only tracker with a 24-month Warranty and embedded with Nigeria and Sub-Sahara Landmarks. It is perfect for Fleet Management and Car Security at amazingly low prices.
Why Choose T23? (Key Features)
Accessible Anytime, Anywhere – Even When Offline.
Easy to Use in Your language.
No Monthly Fees, No contracts or Reliance on 3rd Parties.
Reliability and Full After Sales Support.
Full 24-month warranty for all vehicle trackers, backed up by 24-hour customer support.
Backup battery that allows your device to function even if vehicle power is cut.
Free Fleet Management and Mobile Software.
Easy to Understand Location Data That Beats Mapping Alone. (Landmarks)
Geofencing to detect unauthorized vehicle use / detours.
Power reporting to detect disconnection or bad vehicle battery
Motion detection to secure parked vehicles & unguarded assets.
SOS button to send out vehicle location when in need of assistance.
Ignition detection and disabling (optional)
Speed reporting to eliminate bad driving habits.
How and Where T23 Works
T23 vehicle tracking device combines the GPS (Global Positioning System), GSM (mobile network) and geographical information (TLD Landmark Data) into one device.
T23 uses GPS satellites to position itself resulting in very accurate positioning, then it finds the closest TLD landmark to that point from its internal memory and sends the information across to any authorized mobile phone as a text message using the GSM network. T23 is commanded with simple text message commands; sending the word 'Find' or letter 'F' to your T23 will result in you getting the actual location of your Asset sent back to your phone as a message. Simple, intelligent and very secure.
T23 is multilingual and is currently available with local landmark information for Nigeria and over 220 other countries and areas.
Please get in touch with us for your purchases and installations.
Phone: 01-3423856, 07067000761


On 25 February 2016, Ofcom published its initial conclusions following the review of digital communications. In brief:
- BT must open up its network, so competitors can connect fibre to homes and offices.
- Openreach must be reformed to better serve UK consumers and businesses.
- Quality of service for all customers must improve, with automatic compensation where things go wrong.
Ofcom will work with the Government to deliver a new universal right to fast, affordable broadband for every household and business in the UK.


It’s crazy how much we rely on the internet. Our phones sync to it, we stream music, store things in the cloud, tablets, use wireless speakers…. and instead of one family computer, everyone has a laptop.
It’s important, more than ever, to have a strong home network. You shouldn’t have to stress about your network failing, or having “dead zones” in your house. Enter Linksys.
I set up a brand new network from top to bottom using Linksys. I used the Linksys WRT1900AC Dual Band Gigabit Wi-Fi Router.
In the box:
- 4 antennas
- Ethernet cable
- Power adapter
- Quick start guide
Installing this router was simple. I plugged it in and followed the prompts. There’s also an online guide here.
This powerful router has an array of features, including:
Ultimate Wi-Fi Coverage for Home
This stylish (and sturdy) blue-and-black router has the latest Wireless-AC platform along with the industry’s first four antenna configuration with a powerful 1.2 GHz dual-core ARM to provide exceptional signal strength and range to simultaneously support multiple users. It also has a dual eSATA/USB 2.0 and a USB 3.0 port to conveniently connect an array of devices and experience lightning-fast transfer speeds.
The WRT1900AC features exclusive SMART Wi-Fi software to monitor and control your network anywhere and anytime. It’s our first router to offer the Network Map smart tool, providing an intuitive at-a-glance view of your entire network.
The first router with 4 antennas
To provide strong, reliable Wi-Fi coverage throughout your home, the WRT1900AC features four external adjustable antennas that ensures your Wi-Fi signal is always at maximum strength, keeping everyone simultaneously gaming, downloading and streaming without lag. The antennas also enhance 2.4 GHz and 5 GHz simultaneous dual wireless bands performance for a strong, reliable Wi-Fi signal that eliminates dead zones even in multistory homes. The antennas arrive detached and are easy to install.
SMART Wi-Fi Software
With the SMART Wi-Fi, you can monitor and control a home network from anywhere, anytime using a PC or mobile device. I downloaded the app on my Android and love it. I used it to set up a secure guest network.
Have kids? You can set parental controls to restrict Internet access during certain times of the day. You can also monitor activity on your home network, add new devices, and check upload and download speeds. You can also prioritize which devices on your network receive the most bandwidth to reduce lag times and buffering when you’re streaming HD media or gaming.
I love it! The deadzones have vanished, and the signal is nice and strong. I like being connected and love that I can check stats on the go on my phone. If you’re in the market for a new router, this one is a good bet.


The full filing is available in PDF format.
In the matter of:
Service Rules for the 698-746, 747-762, and 777-792 MHz Bands:
WT Docket No. 06-150
Implementing a Nationwide, Broadband, Interoperable Public Safety Network in the 700 MHz Band:
PS Docket No. 06-229
Implementation of the Commercial Spectrum Enhancement Act and Modernization of the Commission's Competitive Bidding Rules and Procedures:
WT Docket No. 05-211
Development of Operational, Technical, and Spectrum Requirements for Meeting Federal, State and Local Public Safety Communications Requirements Through 2010:
WT Docket No. 96-86
The Ad Hoc Public Interest Spectrum Coalition (PISC) applauds the Commission for including issues raised by PISC in the initial comment period.
The United States continues to fall further behind the rest of the world in broadband Internet access -- our markets lack the competition necessary to serve consumers with lower prices, faster speeds and universal access. Even as the broadband market has further consolidated -- leaving 96% of the market in the hands of two technologies -- our policy framework has only served to diminish opportunities for competition. The auction of the 700 MHz spectrum creates a new possibility for competitive broadband provision. It is imperative that we learn the lessons of the wireline market and make the appropriate policy corrections in the launch of the most promising wireless broadband markets.
The Commission simply cannot choose to let current market conditions and participants control the outcome of the upcoming auctions. To date, existing wireless broadband providers do not offer a useful "third pipe" for American consumers. Perhaps most importantly, this market for broadband capable mobile devices is dominated by the same incumbent firms that control the wireline broadband market. These incumbents make clear that they have no intention of offering broadband with the freedom to attach any device and run any application.
To foster real wireless broadband -- the fast, ubiquitous, and dynamic third pipe everyone agrees our country desperately needs -- PISC recommends that the Commission take the following steps both to ensure that new spectrum is offered on an open and nondiscriminatory basis and to bring in new entrants interested in challenging the current cozy wireless oligopoly and broadband duopoly:


- Leader in digital services with 100,000 employees in 72 countries
- Provider of IT infrastructure management services, systems integration, outsourcing and IT consulting
- Official global IT partner of the Olympic and Paralympic Games
- Awarded with the Great Place to Work certificate for four times
- Almost 5000 people employed in 9 cities: Bydgoszcz, Warszawa, Wroclaw, Opole, Krakow, Torun, Gdansk, Rzeszow, Lodz
Network Operator with French (NOC) is a part of Network, Data Center and Communication Services organization (NDCS). Team is a single point of contact for all network, security and communication issues for internal and external support teams. NOC is supporting worldwide infrastructure of more than 300 of Atos’ clients.Network Operator is providing daily operational support for our clients’ network, security and communication infrastructure.


Winston-Salem is one of nine communities in the United States to be designated a “Citizen-Engaged Community” by the Public Technology Institute.
The designation recognizes a city’s commitment to give residents multiple options for accessing government services and information, including the Internet, social media, interactive voice response, and call centers.
The eight cities and one city-county that received the designation for 2010–2012 were cited for using communications technology to set new standards for citizen participation, particularly in their use of centralized citizen contact centers that effectively use new technology for fast, friendly, and responsive service and that demonstrate accountability through performance reporting, not just for calls but also for service delivery.
City Link, the city’s call center, gives citizens a single number (727-8000) to call to request city services, report problems and make suggestions. The call center is staffed year-round 24 hours a day and receives an average of 23,771 calls a month.
The home page of the city web site prominently features a Citizen Service area and offers live chat for accessing services.
Also receiving the designation are Buffalo, N.Y.; Corpus Christi, Texas; Greensboro; Hampton, Va.; New York City; Miami & Dade County, Fla.; Philadelphia, and San Francisco.
The not-for-profit Public Technology Institute promotes innovation and collaboration for thought-leaders in government, and advances the use of technology to improve the management and delivery of services to the citizen. For more information visit www.pti.org.


Find Samsung remote codes. Here is a list of all Samsung remote codes for video and audio components such as TV, HDTV, VCR, Receivers, Blu-Ray players, DVD players, Audio Components and more. NOTE: Choose the first remote code at the
Program your Slimline Remote 2 for Optik TV | TELUS Support The LED light beside the TV power button will flash twice in red when a TV code is entered; and will flash twice in yellow when an amplifier code is entered. If this fails to work, use the Remote code tool to generate another code for your device brand and start again at step 1; Press and hold the TV power button until your TV switches off Codes télécommande SAMSUNG - commentcamarche.net Je viens d'acheter un téléviseur SAMSUNG LE46M8 LCD 102 cm. Il possède une télécommande où l'on peut connecter plusieurs appareil. Malheureusement, dans les codes fournis dans la notice, il ... Codes for Universal Remotes - ccm.net Universal remote codes are used to operate the devices attached to them. These codes are unique to each hardware device and are listed in the manuals provided with the appliance. If you have misplaced your user manual, you may be able to find the remote code that you are looking for in this FAQ. Codes for Universal Remotes URC Support
REMOTE CONTROL USER'S GUIDE GUIDE D'UTILISATION 1Press the TV mode key. Appuyer sur la touche mode TV. 2 Press and hold SETUP until TV mode key blinks twice. Appuyer et maintenir enfoncée la touche SETUP jusqu'à ce que la touche mode TV clignote deux fois. 3 Enter 1st TV code for your TV brand from the code list. Saisir le 1er code TV de Remote Control Codes For Samsung TVs Remote codes for Samsung TVs. Below is a list of all Samsung remote control codes to be used with ALL Samsung televisions. These codes can be used with all universal remotes if your remote needs a 3, 4, or 5 digit code. Find all 3, 4 & 5 Digit Universal Remote Control Codes For Samsung TVs below. Samsung TV remote codes Cogeco | URC Support Popular Remotes. Tivo S6 Voice Remote. Code Finder
Samsung TV unresponsive to remote - July 2019 - Forums -… My Samsung Smart LED TV (UE40ES6410) has developed an unusual problem recently. Sometime after turning the set on (normally a few minutes, sometimes less, some...Is this likely to be the remote or the TV? Any help would be appreciated. Model code: UE40ES6710UXXU Version: 04. Download Remote control for samsung TV APK latest… TV remote for samsung, easily convert your Android phone or tablet into a universal remote control for your TV. It's simple and easy to set up and use, the mode ofThe difference between "Remote Control for samsung TV" and other similar apps on Google Play, is that our application supports... Samsung TV Remote Code List, For Samsung TV... -… SAMSUNG AA5900638A TV Remote Control - www.ReplacementRemotes.com. 00:54 13684. PROGRAMMING ONKYO REMOTE To TV CodePROGRAMMING ONKYO REMOTE To TV Code Review. 07:08 67842. How to Charter Cable All Remote codes for programming your remote!
Philips Remote SRP1003-27 Codes | Vidéo | Électronique grand ... TV Remotes and Sonos | Sonos


How Address Resolution Protocol (ARP) Works
Followed by azker‘s article on OSI model Part-1 and Part-2. In this article I will explain what this ARP and why it’s important to know about it. In OSI Layers you see there are two types of addresses in OSI model. Network layer contains IP address and Datalink layer contains MAC address. When I was learning OSI Layers this question came to me “Isn’t one address enough to communicate between devices?”.
Why we need two address types?
To make life easier, let’s take a look at a real life example. I want to meet my friend named Jim, But I don’t know exactly where he is now. Then I come outside and shout “Hey Jim where are you? :/”. Everybody in the area gets my message. Jim also hears that and responding me with his physical location, “Hey dude I’m here!”. Now I know his place and moving.
How we can relate it with Networking?
In above situation I already know my friend’s name, but I din’t know where he is right? I found his place by his response to my shout. This is exactly how network devices works. Let’s say I begin to transfer some data from my desktop with IP address 192.168.1.15 and need to my server with IP address 192.168.1.100. I tell my desktop to connect to the server by manually submitting server’s IP address. But my Desktop doesn’t know where exactly the server is. And Desktop will send a shout to the network know as ARP (Address Resolution Protocol) “Who is this 192.168.1.100?”. Every devices in the network get the message as it’s a broadcast packet. When server gets it, it’ll respond to the ARP request by giving server’s MAC (Media Access Control) address of the network adapter, which is the physical address of the server. And Desktop start sending data directly to server’s MAC address. And Desktop will keep servers MAC address in it’s arp cache. To view ARP cache entries, go to Start –> Run –> CMD and type arp -A
So now we know Network devices never communicate directly to a IP address. IP (A logical name) address is used to find it’s MAC (Physical) address with ARP.
What information is included in ARP packet?
Up to now we looked at how ARP works and used to find MAC by IP address. Now we’ll take a look at contents of the ARP packet.
Basically ARP contents two addresses as illustrated below.
When Desktop sends ARP, it’ll look like this.
When Server responds to ARP request from Desktop it’ll look like this.
I hope this helped you to understand the basics of ARP functions. Wondering what can I do with ARP? It’s hacking time 😉


VI 5G Phone List: Even if it is delayed, Vodafone Idea will launch 5G service very soon. These Xiaomi smartphones will first be available with high-speed Internet.
VI 5G Phone List:
Jio and Airtel have already started 5G services across the country. But many are behind another telecom company Vodafone Idea in this race. Vodafone Idea’s 5G network has not yet been launched in any city in India. As a result, millions of customers of this telecom company are somewhat disappointed.
Vodafone-Idea (Vi) has announced a list of Xiaomi phones that will support 5G services. The telecommunications behemoth has revealed that it has tested the latest network on a number of Xiaomi and Redmi phones. To allow Vi users to enjoy the most recent network, a software update will be distributed to eligible devices.
“This collaboration will enable Xiaomi and Redmi smartphone users to enjoy enhanced data experiences on Vi 5G once the operator launches the services,” the telecom company said in a statement to ET. However, unlike Jio and Airtel, Vi has yet to launch 5G in any Indian city. Here’s what we know so far about the Vi 5G launch.
Despite lagging behind in the race, Vodafone Idea has made a big announcement today. Vodafone Idea has informed that this high-speed internet will be available on some smartphones. However, the company said that 5G will run on some smartphones of Xiaomi and Redmi in the initial phase.
In this context, the company said today, when Vodafone Idea 5G is launched, Xiaomi and Redmi smartphone users will be able to enjoy more advanced 5G services.
In which smartphone will VI 5G be available?
Recently, Vodafone had released a list of Idea phones. According to the company, this smartphone will be the first Vodafone Idea 5G to be launched.
- Xiaomi 13 Pro
- Redmi Note 12 Pro 5G
- Redmi 11 Prime 5G
- Redmi K50i
- Redmi Note 12 Pro+ 5G
- Redmi Note 12 5G
- Xiaomi 12 Pro
- Mi 11 Ultra
- Mi 11X Pro
- Xiaomi 11T Pro 5G
- Redmi Note 11T 5G
- Xiaomi 11 Lite NE 5G
- Redmi Note 11 Pro 5G
- Mi 11X
- Mi 10
- Mi 10T Pro
- Mi 10i
When will Vodafone Idea 5G be launched?
At present, the biggest question in the mind of the customers is when will the Vodafone Idea 5G network be launched? Where Jio and Bharti Airtel have already started 5G services in more than a hundred cities. However, we can see that there was no response from the company side. It is known that by 2024, Vodafone will be able to prepare the entire 5G infrastructure in the country.
VI has been running 5G tests on Xiaomi smartphones for a long time even though 5G services haven’t been launched. This can also be a big sign. Although it has not been officially announced, it is expected that Vodafone Idea will launch high-speed 5G services in India very soon.
On the other hand, Jio 5G has reached 406 cities across the country. Smartphone users are now enjoying 5G network instead of 4G. Mukesh Ambani’s company has also joined Airtel. Airtel has started offering 5G services in over 500 cities in India.
In a statement Know What Xiaomi India And VI Said:
In pursuit of a connected future and to realize the limitless potential of 5G in India, Xiaomi and Vi have joined forces to provide their customers with an unfiltered 5G network on their devices.
Vi has been collaborating with technology leaders, domain experts, start-ups, and device OEMs to develop 5G use cases for consumers and enterprises in India.
Xiaomi India remains committed to democratising technology for consumers across the country by offering best-in-class technology at an affordable price.


Epson Introduces the SD-10 Spectrophotometer Color Measuring Device
Underscoring its commitment to print quality, Epson America announced the Epson SD-10, the first Epson-built spectrophotometer. Designed to give SureColor wide-format customers a tool to accurately measure color, the SD-10 is an easy-to-use and full-featured color measuring device. The SD-10 is a compact, battery-powered device that can be used stand-alone via the built-in LCD display or wirelessly connected to a smartphone through the mobile app to make critical color decisions on-the-go. Allowing users to elevate their color with a simple color management tool, the SD-10 is ideal for print shops, designers and salespeople to capture, reproduce and confirm colors with confidence.
“Many existing color workflows are labor intensive and communicating color can be arbitrary and subjective,” said Eric Holm, professional imaging, Epson America, Inc. “Well received by both textile and signage users for its simplicity to measure and communicate accurate color, the Epson SD-10 allows an entire team to speak the same color language, from the salesperson to the designer to the print department.”
Measuring colors accurately, consistently, and quickly, the SD-10 is easy-to-use, easy to carry, and its embedded battery allows for measurements to be taken virtually anywhere, anytime. The SD-10 features market-leading technology, including industry-standard measurement modes (M0, M1e, M2) and Epson’s advanced micro-electromechanical system (MEMS) technology, used to construct devices with sub-micron precision. Accuracy on textured surfaces is achieved via a large 7.6 mm aperture and 360-degree LED illumination reduces shadows and irregularities to increase accuracy of color measurements. A built-in LCD display makes standalone operation possible, allowing for quick viewing of a measured color’s L*a*b* value. Additionally, the last two colors are always being compared and the delta-E value is displayed.
The Epson Spectrometer mobile app allows users to wirelessly connect to mobile devices where they can build custom color libraries, find similar PANTONE colors and compare measured colors. The app can be used to see where a color stands in comparison to your printer’s ICC profile. Additional features include:
- Wireless Bluetooth connectivity – Connect to a mobile device or computer using Bluetooth Low Energy technology
- Large aperture for textured surfaces – 7.6 mm aperture measures up to 1.5 times the area covered by similar products, allowing for greater accuracy
- Integration with Epson Edge Print software – Directly measure and replace colors within the print workflow; connect via Bluetooth or USB
- Build color libraries – Use the mobile app to create color palettes, find similar PANTONE colors and record measurements
The SD-10 spectrophotometer is now available through Epson Authorized Professional Imaging Resellers for $899 (MSRP).
The preceding press release was provided by a company unaffiliated with Wide-format Impressions. The views expressed within do not directly reflect the thoughts or opinions of Wide-format Impressions.


Optic Fiber Cable PMMA Side Glow Optic Fiber Cable 2MM Diameter For Car LED Lights Bright LED Fiber Optic Illuminator Engine
* 100% new high quality
*PMMA Side Glow Optic Fiber Cable 2mm Diameter for Car LED Lights Bright
*Side Glow Optic Fiber Cable
*Not easy to break, uniform thickness
*No UV or IR Energy, virtually no heat
*Nice surface and transparent, excellent toughness can be bent at random
*High brightness, energy saving and long service life
*Application: for all kinds LED fiber optic illuminator engine and decoration such as optical fiber hanging lamps, optical fiber curtains, optical fiber falling waters, optical fiber star ceiling, etc.
*Core Material: Transparent polymer
*Working Temperature: -20degree Celsius~ 98degree Celsius
*Optical Loss: 650db/km
Warm Tips: Optical fiber can't emit light by itself, it needs light source used together to show various colors.
1*Optic Fiber Cable
1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
2. Please allow slight manual measurement deviation for the data.


|Place of Origin:||China|
|Brand Name:||Dingyu/ DY SCAN|
|Certification:||CE, ROHS, FCC, IEC, FDA|
|Minimum Order Quantity:||1|
|Delivery Time:||3-7 days|
|Payment Terms:||T/T, Paypal, Alibaba|
|Scan Type:||CMOS||Communication:||Bluetooth, Wireless 2.4G|
|Resolution:||≥5mil/0.127mm(PCS90%,Code 39)||Decoding Speed:||25CM/S|
|Depth Of Field:||10mm-500mm||Storage:||16Mb（over 100,000 Product Code）|
|Battery:||1200mAh||Battery Charging Time:||About 3.5 Hours|
|Continuous Working Time:||≥10hours|
cordless usb barcode scanner,
wireless bluetooth barcode scanner
mini 2.4G Bluetooth Portable Handy barcode Scanner 2d Micro USB for stock taking
DI9120-2D is a high-performance 2Dbluetooth and wireless 2.4G barcode scanner with leading COMS image recognition technology. It can easily read the paper, goods, screen and other media barcodes. Widely used in manufacturing, warehouse, logistics, health care, retail chain, mobile payment, express delivery, inventory management, food traceability, asset inventory,etc.
☆ Wired and wireless connection, support USB and wireless 2.4G mode, can be switched easily.
☆ Read all mainstream 1D in the market easily.(5mil)☆ Bluetooth 4.1, intelligent automatic connection when it’s beyond range, not manual setting.
☆ HID,SPP,BLE mode, connected with PC, mobile phone easily.
☆ Ultra-low power consumption.
☆ 5000 data storage capacity.
|Light Source||Red Light LED 625±10nm(aim), 5600K LEDs( Lighting)|
|Depth of field||10mm-500mm|
|Scan Mode||Manual ,Continuous, Auto Sense|
|Scan angle||Roll±360°, Pitch±65°, Skew±60°(PCS90%, Code 39, 10mil/0.25mm)|
|Print Contrast Signal||≥25%|
|Ambient Light||Dark environment, indoor natural light|
|Wireless communication mode||Synchronization , storage|
|Wireless transmission distance||2.4GHz,150meters; Bluetooth 30meters(Open distance)|
|Storage||16Mb(over 100,000 Product code)|
|Battery charging time||About 3.5 hours|
|Continuous working time||≥10hours|
|Symbologies||1D: UPC-A,UPC-E,EAN-8,EAN-13,ISSN,ISBN,Code 128, GS1-128,ISBT 128, Code 39,Code 93,Code 32, Code 11, Interleaved 2 of 5,Matrix 2 of 5,Industrial 2 of 5,Standard 2 of 5(IATA),Codabar(NW-7),Plessey,MSI Plessey,GS1-Databar(RSS),Itf-14,etc.
2D: QR Code, Data Matrix, PDF 417, Aztec Code, Maxicode, Hanxin. etc.
|Dimension||L130mm * W47.5mm * H24mm|
|Communication Mode||USB,Wireless 2.4G,Wireless Bluetooth 4.2|
|Interface Type||Type C|
|Power Supply||DC 5V@120mA(work)|
Q1: How do you make sure the high quality barcode scanner?
DYscan: we are pofessional manufacturer and developer of barcode scanner, with rich field experience for 18 years.
Professional QC team and testing machine (Engine age test,wire bend machine,switch life test,shock resistance test).
All our barcode scanners pass CE,FCC,ROSH certifications etc.
Q2: How do you make quality control?
DYscan: we have wire bend test 1 million times, buttons are tested 1 million times, all the devices will be tested before send out.
Q3: How long is the warranty time of barcode scanner?
DYscan: 12 months
Q4: How to control the performance stable?
DYscan: We take the flow line production in the whole processing. Every product will be tested 4 times at least before delivery.
Q5: Can you provide OEM or ODM service for barcode scanner?
DYscan: We can do OEM, such as printing your own logo, color box, user manual. And we have our own technical team to support ODM service.
Contact Person: Sales Manager


Google and Android phone makers sued by Rockstar Consortium
A patent assertion entity – The Rockstar Consortium – which is owned by Apple, Microsoft, Blackberry, Sony and Ericsson has filed a complaint in the US for infringement of 7 patents related to smart phones by Google, Samsung, LG, HTC, Huawei, ZTE, and ASSUTek.
While this is one of many actions in this ongoing smart phone patent war, this appears to be the start of the biggest battle yet.
The patents were originally a Nortel patent which was auctioned off – Google was out bided in the auction by the Rockstar Consortium and no doubt regrets not making a higher bid.
Given the size of the players and the markets, the commercial outcome of this patent dispute will be measured in the Billions of dollars.


Marking systems for integration in automated production lines and work centres. Industrial PC integrated with pre-installed software. Supports the main standard communication protocols.
Suitable for marking any type of metal, even the hardest, as well as plastics and other materials
Maximum flexibility and speed in marking: enables the density of the energy delivered to be optimised based on the properties of the material to be marked.
The extremely high quality of the laser beam makes it ideal for micro markings, text, images, bar codes and very high-definition Data Matrix codes.
The marking software enables complete and flexible management of the laser’s parameters in order to adapt to various materials and marking situations.
It can handle the customisation of the operator interface and line automations.


Mizoram State Wide Area Network (MSWAN) is a project aimed at designing and implementing the information highway for the Mizoram State E-Governance applications. As part of implementing e-Governance initiatives that would help provide a reliable communication corridor. It will be using the latest and state-of-the-art technology to improve the administrative efficiency. MSWAN is envisaged as the backbone network for data, video and voice communications throughout the state, for all Government Operations. MSWAN is required to be open standard based, scalable, high capacity network to carry data, voice and video traffic between the designated levels and offices of Government of Mizoram at State/District/Block or Sub-Division levels.
Objectives of the Project
- Enable Government to provide better services and improved quality of life to citizens.
- Responsive administration tuned to the needs of the people.
- A knowledge driven society.
- Intranet/Internet connectivity-interconnecting all the departments in the State level, District level, Sub-Divisional level and block level and Public Information Kiosks.
- Developments of a number of web enabled applications, electronic document processing, inter office communication and document interchange.
- Maintaining elaborate data banks of citizens, departmental schemes, programs, policies and procedures.
- Training and Capacity building to manage and sustain the program as also to create awareness and co-operation amongst all Stakeholders.
More Information about MSWAN: swan.mizoram.gov.in


As the business world becomes increasingly mobile, cloud services are becoming even more attractive. But what if, as is often the case, there are still dependencies on an enterprise network - on Azure, for example? The solution is obvious: a point-to-site VPN ensures communication for mobile workers. In this how-to post, I discuss how a certificate-based point-to-site VPN to an Azure VPN gateway can be automatically rolled out to mobile clients through Intune. I also discuss how certificates can be automatically issued and renewed by a Certificate Authority in combination with Intune.
Multi-factor authentication is widely used today and should be standard for all companies and individuals. But what if the configured MFA device is lost or broken? Microsoft's Authenticator App offers a practical, simple and secure solution to this problem through cloud backup of the MFA configuration. With it you can easily backup your existing MFA configuration. This article shows how to activate the backup, add another MFA device, load the backup data and remove the lost or broken device. And all of this can be done very easily in a few steps.
The digital world is changing and more and more cloud apps are being used. Both in private and business. If each of these web apps has its own authentication, chaos quickly reigns and a user must authenticate several times a day. It becomes especially complicated if a web app uses shared user credentials. … Read more


Google’s experimental feature Click-To-Message, which has only been available for the AdWords searches, will make its general market debut sometime in the next few weeks.
The Click-To-Messages option is already available on AdWords, or Google’s advertisement platform, which could have been used as a means of testing the Internet giant’s latest experiment.
The new option should come as an easier, better method of communication between the advertising company and the interested party as it will allow for an instant contact.
As an interested user will perform a Google Search in his or her area of interest, the resulting company ads will feature an SMS icon, which will give the user the chance to instantly reach out to the company.
The options will have a vast area of utility, starting from business to even traveling. Booking a room or making a dinner reservation would be just a click away and would no longer require intermediary sites or communication as the client could fire a quick question or demand through the new chat option.
The feature will work for other business areas as well, but they will have to be a registered user of Goggle AdWords in order for the feature to work. In such cases, tapping on the icon will open the user’s default SMS app, and an already registered message will appear.
As the client can set a default message that would contain all the information needed either for acquiring or for transmitting a certain data, it could prove to be a faster way of informing and being informed.
Although the response may not be immediate, it could still save precious time and also be used as a reminder.
Google estimates that a number of 65 percent of the consumers would much rather communicate with a business via message rather than through a phone call. According to this percentage, most people would much rather ask a question or even set an appointment by texting.
The numbers will probably only be growing as the new generations are increasingly more prone to using a messaging app than making a call, in whatever area or purpose.
Businesses can easily access their part of the Click-To-Message option through an AdWords account which will require some simple, additional information. As the SMS icon appears, the tax for a received message will be the same as that of an ad click, but will allow for further interactions.
Just as with individual users, businesses will be able to set a default message, that could later develop into a conversation.
Image Source: Flickr


Telecom Batteries:Cell Towers & Data Centers
StorEn vanadium flow batteries are ideal for both telecom towers and data centers. Telecom tower batteries can be charged from the electrical grid or powered by renewable energy in off-grid locations, while batteries for data centers offer a backup electricity supply for added security. These batteries are essential for data integrity and continuity of communication and transmissions, but up to now, sustainable options have been lacking.
StorEn offers sustainable telecom batteries that are durable, reliable, and cost-effective. They can be used to collect energy from traditional electrical grids or renewable sources; this energy can be either stored until an outage occurs or it can be used to control utility costs by storing energy for use during peak consumption times, when rates are higher.
VANADIUM BATTERIES FOR TELECOM APPLICATIONS
Lithium batteries have allowed the telecom industry to begin the transition to renewable energy sources, but not without significant limits—they suffer fast decay and lose storage capacity over time. StorEn’s goal is to bring sustainability to the mainstream with vanadium flow batteries that overcome the shortfalls of lithium batteries.
Up until now, vanadium battery technology wasn’t ready for widespread use. Our engineers’ research and innovation has resulted in a vanadium flow battery that is 30 percent smaller than other batteries with similar storage capacities. StorEn technology is designed to easily scale up for widespread distribution.
Our patented Multigrids stack design means unmatched power density with a 50 percent cost reduction in the power side of the battery. StorEn batteries last over 15,000 cycles thanks to their Equilevels and Resafe technologies, and there’s no need for regular service inspections, which means reduced maintenance costs.
StorEn vanadium batteries offer the highest power density available with the smallest footprint and a unique modular architecture, making them well-suited for helping the telecom industry achieve sustainability.
THE VANADIUM BATTERY DIFFERENCE
When compared to lithium batteries, using vanadium flow batteries for telecom has a number of key advantages:
Vanadium flow batteries have no degradation of capacity over time; instead, they’re able to discharge fully at 100% throughout the battery’s entire lifespan.
The average vanadium flow battery lasts 25 years or longer.
StorEn batteries are designed to be low maintenance, making them a more cost-effective means of energy storage.
The vanadium electrolyte retains its end-of-life value and can be reused for a sustainable alternative to lithium telecom batteries.
Vanadium flow batteries have a non-flammable, water-based electrolyte that is non-explosive.
StorEn batteries are suitable for use indoors and outdoors, even in fluctuating temperatures.
Frequently Asked Questions about
Vanadium Flow Batteries for Telecommunications
How do vanadium flow batteries differ from lithium-ion batteries in telecom?
Compared to lithium-ion batteries, vanadium flow batteries reduce carbon emissions significantly. They also do not degrade over time discharging at 100% throughout the lifespan. Vanadium flow batteries last more than 15,000 cycles with minimal maintenance.
Are vanadium flow batteries environmentally friendly?
Vanadium flow batteries have a reduced environmental impact compared to lithium-ion batteries. With a lifespan of 25+ years, vanadium flow batteries are nearly 100% recyclable. The vanadium electrolyte can be reused, preventing the need for additional mining. Vanadium flow batteries also do not require the use of heavy metals such as nickel or cobalt.
Why use a vanadium flow battery for a cell tower or data center?
Vanadium flow batteries fill a void in sustainable battery options essential for continuity of communication and transmission, and data integrity preservation. Vanadium flow batteries for cell towers can be powered by both the electrical grid and renewable energy sources. Data centers can be made more secure by using a vanadium flow battery as a backup energy supply.
What are the risks of vanadium flow batteries in cell towers and data centers?
Vanadium flow batteries pose few risks because the electrolytes used are water-based, non-flammable, and non-explosive. They are safe for both indoor and outdoor use, even in areas of fluctuating temperatures.
What maintenance is required for vanadium flow batteries in cell towers?
Due to the patented multi grids stack design, there is no need for regular inspections of vanadium flow batteries, reducing costs by as much as 50%. Although 30% smaller than other batteries with similar storage capacities, vanadium flow batteries do not degrade over time and are designed to scale up for widespread distribution.
How do I learn more about vanadium flow batteries for cell towers?
Contact us today to learn more about StorEN vanadium flow batteries for cell towers and data centers.


- Easy to maintain
- Cost effective
- High efficiency
- Minimum Order Quantity: 1 Piece(s)
In Industrial applications various parameters like temperature, pressure, flow, humidity or electrical parameters like voltage, current, frequency etc are to be displayed to be viewed from greater distances. These displays can accept multiple inputs so as to work as Jumbo Display Scanners.
We are an eminent organization engaged in providing LED Moving Message Boards, which are used for the purpose of displaying advertisements, greetings and information dissemination on products and services. To suit the varied needs of patrons, these message boards are provided in varied sizes.
The plants require parameters to be displayed at remote locations with large characters size. We deal in offering LED Display System that demonstrates parameter readings in various sizes ranging from 1.5” to 1ft. These display system connect on two wire interface from logger and can be at a distance up to 1 km from the logger. A wireless connectivity using RF is also possible as per the application requirements of the clients.color: red


Entergy will conduct a test of the Indian Point Sirens on Wednesday, Oct. 22 begining at 10:30 a.m. All the sirens in the new system will be sounded for four minutes at full volume. This is only a test. No response on the part of the public is necessary.
In an actual emergency, the sirens would sound continously at full volume for four minutes, followed by the broadcast of an Emergency Alert System (EAS) message on radio and television stations. Sirens are not a signal to evacuate; but rather for people to tune to an EAS radio or TV station for information and instruction.
Once again the siren system sounding on Wednesday at 10:30 a.m. is only a test. No action on the part of the public is necessary.


Pictured above is an example of a project that involved RMS' specialist wireless services to provide a long-distance 13km link.
RMS Integrated Solutions are specialists in the provision of Wireless & Wi-Fi solutions to customers large and small throughout the UK. RMS provide a full turnkey solution from the initial survey and design through to supply and commissioning of Wireless & Wi-Fi equipment and services – from simple network solutions to site wide / city wide 'mesh' network solutions capable of carrying data from hundreds of cameras and other security & safety devices.
RMS Integrated Solutions work with leading manufacturers of products & services to deliver high-quality performance solutions, and are certified partners by various leading manufacturers and service suppliers.
RMS Integrated Solutions provide highly customised wireless & Wi-Fi solutions to meet your needs. Whether they are for the provision of Wireless Internet access for hotels, businesses and schools, or industrial applications such as warehouses or Rail Platforms in which greater certification and stringent compliance is required.
RMS Integrated Solutions assess each scenario and work within your budget. RMS tailor the best solution using the right technology for your application; whether it be Wi-Fi systems such as access points for the mobile workforce, long-distance micro-wave or point-to-point links operating at 2.4Ghz/5Ghz for CCTV (and other devices) in security projects to Wireless Mesh circuits for villages or even wider-scale projects.
All RMS Integrated Solutions wireless equipment offer flexibility in security and scalability. RMS believe in the provision of highly secure and easy to use wireless networks and are even able to customise the radio hardware for bespoke military applications.
RMS Integrated Solutions, as part of the Westminster Group Plc. listed on the London Stock Exchange, has all the technical and financial resources necessary to undertake any project regardless of size or complexity.
For more details on RMS Integrated Solutions' Safety services, please contact us.


Auf ein Miniaturbild klicken, um zu Google Books zu gelangen.
Building Wireless Community Networks (2001. Auflage)
von Rob Flickenger
Building Wireless Community Networks von Rob Flickenger
Keine aktuelle Diskussion zu diesem Buch.
Literaturhinweise zu diesem Werk aus externen Quellen.
Wikipedia auf Englisch (1)
Building Wireless Community Networks is about getting people online using wireless network technology. The 802.11b standard (also known as WiFi) makes it possible to network towns, schools, neighborhoods, small business, and almost any kind of organization. All that's required is a willingness to cooperate and share resources.The first edition of this book helped thousands of people engage in community networking activities. At the time, it was impossible to predict how quickly and thoroughly WiFi would penetrate the marketplace. Today, with WiFi-enabled computers almost as common as Ethernet, it makes even more sense to take the next step and network your community using nothing but freely available radio spectrum.This book has showed many people how to make their network available, even from the park bench, how to extend high-speed Internet access into the many areas not served by DSL and cable providers, and how to build working communities and a shared though intangible network. All that's required to create an access point for high-speed Internet connection is a gateway or base station. Once that is set up, any computer with a wireless card can log onto the network and share its resources.Rob Flickenger built such a network in northern California, and continues to participate in network-building efforts. His nuts-and-bolts guide covers: Selecting the appropriate equipment Finding antenna sites, and building and installing antennas Protecting your network from inappropriate access New network monitoring tools and techniques (new) Regulations affecting wireless deployment (new) IP network administration, including DNS and IP Tunneling (new) His expertise, as well as his sense of humor and enthusiasm for the topic, makes Building Wireless Community Networks a very useful and readable book for anyone interested in wireless connectivity.
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Melvil Decimal System (DDC)004.67 — Information Computing and Information Computer science Networking Wide-Area Networks
Klassifikation der Library of Congress [LCC] (USA)
Bist das du?
Werde ein LibraryThing-Autor.
Eine Ausgabe dieses Buches wurde O'Reilly Media herausgegeben.


International Transport Workers Federation
Temperature sensors are used to measure the thermal characteristics of gases, liquids, and solids in many process industries and are configured for both general- and special-purpose uses. More information about temperature sensors may be found in our related guide All About Temperature Sensors. Contact sensors refer to any type of sensing device that functions to detect a condition by relying on physical touch or contact between the sensor and the object being observed or monitored. A simple type of contact sensor is used in alarm systems to monitor doors, windows, and other access points. When the door or window is closed, a magnetic switch provides an indication to the alarm control unit so that the status of that entry point is known. Similarly, when a door or window is opened, the contact sensor alerts the alarm controller of the state of that access point and may trigger an action such as engaging an audible siren.
Traditional fields of embedded systems, wireless sensor networks, control systems, automation , and others all contribute to enabling the Internet of things. With regard to business, the IoT provide several important benefits including the ability to access and analyse data, removing the need to external data analysts or market researchers. The IoT is able to cope with big data analytics in real time, demonstrating how products and services are performing in the real world, and creating a situation where improvements can be made rapidly. This data also opens up a better understanding of customer behaviours so that businesses can meet their needs while also reducing operating costs by managing energy usage and resources. Finally, the Internet of Things can enable remote working by collating and sharing data with employees regardless of where they are based.
The devices do most of the work without human intervention, although people can interact with the devices -- for instance, to set them up, give them instructions or access the data. Using its RPMA technology, San Diego-based Ingenu has built a nationwide public network for low-bandwidth data transmissions using the same unlicensed 2.4 gigahertz spectrum as Wi-Fi. Ingenu's "Machine Network" covers more than a third of the US population across 35 major cities including San Diego and Dallas. French company, Sigfox, commenced building an Ultra Narrowband wireless data network in the San Francisco Bay Area in 2014, the first business to achieve such a deployment in the U.S.
What Is The Internet Of Things?
The round-trip time for sending data, processing it, analyzing it and returning instructions can take too long. In such cases edge-computing can come into play, where a smart edge device can aggregate data, analyze it and fashion responses if necessary, all within relatively close physical distance, thereby reducing delay. Edge devices also have upstream connectivity for sending data to be further processed and stored. A world of omnipresent connected devices and sensors is one of the oldest tropes of science fiction. But the term Internet of Things was coined in 1999 by British technologist Kevin Ashton.
This can cause a propagation delay that affects network performance and may affect proper function. As a result, many network architectures limit the number of repeaters used in a network, e.g., the Ethernet rule. For example, Akamai Technologies manages an overlay network that provides reliable, efficient content delivery .
Learn More In These Related Britannica Articles:
Amazon Web Services IoT is a cloud computing platform for IoT released by Amazon. This framework is designed to enable smart devices to easily connect and securely interact with the AWS cloud and other connected devices. LiteOS supports smartphones,wearables, intelligent manufacturing applications, smart homes and the internet of vehicles .
The IoT can benefit the construction industry by cost-saving, time reduction, better quality workday, paperless workflow and increase in productivity. It can help in taking faster decisions and save money with Real-Time Data Analytics. It can also be used for scheduling repair and maintenance activities in an efficient manner, by coordinating tasks between different service providers and users of these facilities. IoT devices can also be used to control critical infrastructure like bridges to provide access to ships. Usage of IoT devices for monitoring and operating infrastructure is likely to improve incident management and emergency response coordination, and quality of service, up-times and reduce costs of operation in all infrastructure related areas.
IoT can also make use of artificial intelligence and machine learning to aid in making data collecting processes easier and more dynamic. Google Glass is essentially a small, lightweight computer that is worn like a pair of eyeglasses for hands-free work. The information is presented within the “lenses” of the glasses, which can access a variety of Internet applications, including Google Maps and Gmail. In industrial settings, workers often use them to pull up blueprints or product specifications.


Spitzer's spacecraft refers to the uncooled portion of the observatory, including the Solar Panel Assembly, the Spacecraft Bus, and all of the components mounted in the bus that provide the Observatory engineering functions. These components include: the solar arrays, the command and data handling unit, the reaction control subsystem, the telecommunications subsystem, the power generation and distribution subsystem, the pointing control subsystem, and the flight software.
The spacecraft consists of two main parts: the solar panels, which provide electrical power to the spacecraft and shield the Cryogenic Telescope Assembly from the Sun; and the spacecraft bus: an octagonal structure that houses the avionics and the warm electronics parts of the science instruments. The spacecraft provides electrical power to the science instruments, orients and stabilizes the telescope, stores and compresses the data from the science instruments for later transmission to Earth, executes the stored commands to carry out the planned observing schedule, and communicates with the ground system. All communications with Spitzer take place through NASA's Deep Space Network.


Visionary began service in 1994 as an Internet Provider for residential users. By 2000, Visionary was introducing Broadband into many Wyoming communities with both Wireless and DSL infrastructure.
Visionary understands rural Broadband. We also understand the need for faster service that doesn't rely on a phone line. With services like fixed Wireless to standalone DSL, Visionary provides you with the option to be free of a land-line and receive a dedicated connection.
Visionary's Wireless offers speeds of 1.5Mbps to 10Mbps, and Visionary's DSL offers speeds of 1.5Mbps to 15Mbps. Visionary maintains a network of microwave towers and assets within central telephone offices to deliver large-company service with a small-company approach.
Visionary maintains Internet feeds with 360networks, Akamai, Hurricane Electric, Internap, Level3, Limelight Networks, Qwest and Sprint. We also peer with Google, Microsoft, Yahoo and others to improve your Internet connection.
Visionary is a Wyoming company with Wyoming-based technical support! We maintain our own services, from our customer database to our mail servers to our Internet routers and BGP sessions.
Help and Support
Several useful how-tos and articles on common issues.
Visit our Knowledge Base >
Submit Trouble Ticket
Still having problems?
Submit Trouble Ticket >


TP-LINK 3G/4G Wireless and Router
- Brand: TP-Link
- Product Code:MR3220
- Availability:In Stock
Share the freedom of 3G/4G. The TL-MR3220 3G/4G Wireless N Router allows users to share a 3G/4G mobile broadband connection with family and friends via wired or wireless connections. By connecting a 3G/4G USB modem to the routers, a Wi-Fi hotspot is instantly established, via which multiple devices ..


April 20, 2022 | 11:30am — 12:00pm
From unmanned systems to remote sensors to emergency response, the demand for reliable distributed power is ever increasing. Unfortunately, most current solutions can’t keep up with this demand. Dr. Veronika Stelmakh, CEO of Mesodyne, will take the stage to share her technical insights on how revolutionized power generators can fill the gap by using light to convert fuel to electricity. While this technology can be used to address critical needs today, it can also help pave the way for military, industrial, and commercial markets to generate decentralized, portable power from anywhere, at any time, and using any fuel in the future.
Visit the Speakers page to learn more about
Veronika's background and expertise.


Vivoh is taking the lead on enterprise streaming by introducing a new workflow.
We are really excited to demonstrate usage of Wowza to deliver high quality, low latency AND royalty free broadcasting using the VP8 and Opus codecs.
Many new video conferencing services are now using WebRTC which uses VP8 and is now are very popular.In this video we show how to use OBS to broadcast into Wowza. You can substitute other encoders, like Wirecast. The most exciting example is using Zoom to broadcast into Wowza, which is used by many streaming services.
To set this up, connect your encoder to Wowza. Setup the Wowza transcoder to transcode to VP8. Then, connect that to your stream target. In a few seconds, your video will be delivered over multicast, and you can play that back with our Vivoh Multicast Player.
Vivoh now offers App based video playback with the same VP8 video codec but delivered via multicast. This takes the same royalty free codec that is used by WebRTC in Google Chrome or Microsoft Edge browsers and enables you to play it via multicast in the Vivoh Multicast App.
Vivoh is working to updated the Vivoh Multicast App to support the new AV1 video codec. This is also royalty free and is currently used by both the Netflix and Webex Apps (but with only limited and uncertain browser support). The quality is even better than both H.264 and VP8.
Today, enterprise video streaming is stuck with HTTP delivery which does not scale and with the H.264 video codec which has inferior video quality compared to the modern AV1 codec which is now used by Netflix and Webex.
Vivoh intends to be the first to offer AV1 via multicast for enterprise streaming video use cases.Watch the video here
Please take look at this and other videos on our video portal.
We would love to help you with your enterprise video journey. Please contact us at firstname.lastname@example.org


Configure Mikrotik RouterOS in Proxmox KVM virtual machine on OVH dedicated server
When I rented a dedicated server at SoYouStart (OVH‘s brand) in early 2015, I choose to install it with Proxmox VE 3.4. Proxmox VE enables you to use two types of virtualization at the same time: OpenVZ containers and KVM.
After my dedicated server setup has finished, an email was received with IP and root login information to access my Proxmox VE shell.
In this article I will use Server.IP as a reference to my Proxmox server IP address. OVH instructs to configure networking using a gateway which is first three octets of Server.IP and the last octet is .254. So my Proxmox was configured with a gateway of Server.254 (on interface vmbr0).
The goal was to configure server in the way the virtual machines running on this server will use private subnet and will be accessible via router (NAT), which runs in one of the KVM machines.
It is system administrator’s choice of router software, so one could go for the great piece of open source software pfSense, but this time I choose Mikrotik‘s RouterOS (for x86) since I am using it with Mikrotik routers for a few years now and I am very familiar with it.
My private subnet will be 10.1.100.0/24, so I have reserved 10.1.100.1 for the KVM router and 10.1.100.254 for the vmbr2 on the server.
Edit /etc/networking/interfaces and add your private subnet virtual bridge (vmbr2).
$ vi /etc/newtork/interfaces auto vmbr2 iface vmbr2 inet static address 10.1.100.254 netmask 255.255.255.0 gateway 10.1.100.1 bridge_ports none bridge_stp off bridge_fd 0
Be sure to create some type of fallback in case something goes wrong (like you are used to do with firewall, if you configure it remotely). Now restart networking or your server.
Go back to your OVH/SoYouStart control panel and order some IPs for this server. Order at least a block of 8 IPs (/29) or a block of 16 IPs (/28). You will receive an email with your IP block and explanation how to use it.
I got the block of 151.X.Y.176/28 and the most crucial information is this part:
Network IP : 151.X.Y.176 IP for router n°1 : 151.X.Y.188 IP for router n°1 : 151.X.Y.189 Gateway IP : 151.X.Y.190 (not usable) Broadcast IP: : 151.X.Y.191
This means my KVM router will have WAN address 151.X.Y.189 (Router.IP) and I can use all other IPs (151.X.Y.177 – 151.X.Y.188) to NAT to my private subnet with virtual machines.
Again, go back to your SoYouStart control panel, select your server and Add a virtual MAC to the Router.IP (MAC type OVH).
Add this existing virtual MAC address to all your IPs that will be routed via your KVM router.
Now it’s time to download RouterOS (CD ISO image for x86) and upload it to your Proxmox VE server. Create a new virtual machine (router KVM) with 1 CPU, max. 256MB RAM, some hard disk and a network device in vmbr0 (with your OVH virtual MAC address).
In the Hardware tab add another network device (in vmbr2), mount RouterOS ISO image and install it.
Log in to your RouterOS KVM router with admin/<no password> and write down the software ID which you will need to buy the RouterOS license (you have 24h to buy and enter a valid license). I bought a license at mikrotik-routeros.net. It was great price, fast and no problems.
In RouterOS terminal issue a command to print interfaces and find out, how is named the one which is in vmbr0 and has your OVH virtual MAC address.
This is your WAN interface and the other is your LAN (private) interface.
[admin@Mikrotik] interface print value-list
In my case the WAN interface was named ether1 and my LAN interface was named ether2.
Configure your router (replace 151.X.Y.189 with your Router.IP):
[admin@Mikrotik] /ip address add interface=ether1 address=151.X.Y.189/32 broadcast=151.X.Y.189 /ip address add interface=ether1 address=151.X.Y.189/32 network=Server.254 /ip route add dst-address=0.0.0.0/0 gateway=Server.254 /ip firewall nat add chain=srcnat out-interface=ether1 action=masquerade /ip address add interface=ether2 address=10.1.100.1/24
That’s it. The basic configuration of your KVM router is up and running.
Now you can add virtual machines/containers with their network interface in vmbr2.
Use your private subnet IPs (10.1.100.0/24) and your private router address (10.1.100.1) as their gateway. Configure dst-nat/src-nat on your router and your services are set.
Do not forget to secure your server and configure firewall!
If you have any additional questions, do not hasitate to ask or just leave a comment.


Last weekend we performed tests of our transceivers using different antennas and data transmission rates.
We tested two different antennas on the transmitting side (the equipped one and a simple wire) and two on the receiving side (the equipped one and a large directional one). All tests were performed with a 9600 baud rate.
We started by testing the equipped antennas to determine the safe data rate — one that would result in no or minimal data loss. While the guide recommended using 60% of the baud rate — which would be 5760 bits per second for 9600 baud — we discovered that it still resulted in minor data loss when transmitting data on a distance on about two-three metres and decided to use 5000 bps, which resulted in no losses.
We constructed two testing sets using the transceivers which could have their antennas easily swapped and rugged them against wintery conditions, so they could be used outside. They also allowed us to reprogram the transceivers to use a different baud rate, although we never used this feature.
Michał wrote a pair of Python scripts to test data transmission and integrity of received data. One would send a series of numbers via the serial interface, starting at one, repeating each one twice, at chosen speed; the other would receive data, display information about number of received items, and compare their validity (whether one number of the pair matched the other).
We placed the transceivers on two hillsides facing each other, on a distance of about 1050 m. We were transmitting data using the equipped antenna and receiving it with the large directional one.
We performed all tests using 9600 baud rate with 5000 bits sent per second.
In a series of tests, we discovered that although there are no concerns about data integrity nor data loss at this distance with this hardware, the antenna only provided a range of about 90 degrees horizontally and 60 vertically; when directed outside this range, it sharply stopped receiving any data.
This prompted us to conduct another test at a larger distance, and to test the capabilities of equipped antenna as a receiver.
We placed the transmitter on a large hill (approx. 300 metres prominence) and the receiver on a plain below it.
At first we tested all combinations of antennas, on a distance of about 800 m. We confirmed the large antenna results, and we discovered that the equipped antennas were able to talk to each other on this distance with virtually no data loss. We received almost no data from the simple wire-based antenna, though.
Afterwards we tested the large antenna on a distance of about 1500 m. It was able to receive data with no losses regardless of the direction it was pointed at, proving that it has a minimal range it can operate at. While we managed to receive data with the equipped antenna as well, we had approximately 20% data loss, making it unviable for our purpose.
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RS232 logger ActiveX is an ActiveX component that uses Advanced Serial Data Logger to get either data from an RS232 or COM port or already processed and converted data besides the standard export tools in Advanced Serial Data Logger.
This program is a software for monitoring, troubleshooting and logging RS232 communication. A laptop PC, USB/RS232 hub and RS232M give you a strong, portable and sturdy tool to aid in designing and logging RS232, full duplex,
Docklight is a development tool for serial communication protocols (RS232, RS485/422 and others). Applications include Simulating serial protocols, logging RS232 data, detecting specific data sequences and responding to incoming data.
RS-232 Monitor allow to reseive data from serial port and view it in ASCII TEXT, BINARY, DECIMAL, HEXADECIMAL, FLOAT (IEEE754) format. Available formats are TEXT, HEX, BIN, DEC, FLOAT.
Docklight is a test, analysis and simulation tool for serial communication protocols (RS232, RS485/422 and others). * Simulating serial protocols - Docklight can send out user-defined sequences according to the protocol used and it can react to
BlueConsole is a Bluetooth Serial Adapter that provides true wireless Bluetooth access to conventional RS232 ports. Using BlueConsole with Bill-Redirect Software,
System Analyser version gives information about: Bios, Network, Dos, CPU/FPU, Cache, Memory, SPD, Video, AGP, Monitor, Drives, partitions, IDE, ATAPI, SATA, CD-Rom, DVD, Blue-ray Disk, RPC2, Lpt, Rs232, Mouse, Keyboard, IEEE 1284, Modem, Fax,
Software serial port monitor Rs232 sniffer with protocol analyzer and packet data logger. This monitoring utility can spy, capture, view, log, analyze, test com ports activity performing com port connection and traffic analysis with data acquisition and
Free software serial port monitor, Com Rs232 sniffer with communication packet data analyzer. This monitoring utility can spy, capture, view, analyze, test com ports activity performing com port connection and traffic analysis with data acquisition and
GPS NMEA component C++ and .NET library reads and decodes standard GPS NMEA 183 sentences from the RS232 serial port; computes great circle distances and bearings. Runs as a background thread unattended. Works with C/C++,Visual Studio,C++ Builder.
Comm Operator PPC is a powerful RS232 device emulator on Pocket PC.It supports communication with both serial port, include rs232, rs422, rs485 and TCP & UDP based protocol. It works with Wifi, Ethernet and Bluetooth besides normal serial port. It


The micro:bit is only the size of a card, but it can do a lot of things. It has built-in temperature, light and orientation sensors, as well as Bluetooth device, Micro USB interface. Not only that, it also has a row of pins that can be connected to various sensors. Therefore, the micro:bit can do all kinds of interesting experiments.
The left side of the above picture is the back of the V1 micro:bit board, and the right picture is the back of the V2 micro:bit board.
1.Radio Antennas and Bluetooth Antennas
2.CPU and temperature sensor
6.Micro USB socket
10.USB interface chip
13.Red Power LED
14.Yellow USB LED
15.Reset and power buttons


Each GateHawk Video Intercom comes with the Call A Manager feature for visitors to use. When users interact with this feature, it will dial out a phone call to the number listed on the property contact.
To locate this number follow the steps below.
- Click the Profile tab in the navigation bar to see the My Property Details page.
- Locate the Company Information section.
- Locate the Phone Number item. This is the phone number associated with the Call A Manager feature on the video intercom. To edit this number, use the Edit Property Profile button at the top right-hand corner of the page.
Some best practices for using the Call A Manager feature are listed below:
- Enter a phone number that is accessible by multiple individuals. This ensures visitors calls won't go unanswered when a specific staff member is out of office.
- Train all property staff on the phone system connected to this feature of the video intercom. To allow a visitor access the staff member will be required to press the * (star) key.


The Georgetown Police Department’s Communications Division is comprised of a communications manager, four communications team leaders, and 14 emergency communications operators (dispatchers). The emergency communications operators are divided into four teams and work 12-hour shifts. They are the first contact of all 911 calls made from within the city limits of Georgetown. They are responsible for all radio communications for Police, Fire, and EMS, and dispatch all priority and non-priority calls for service. They are also responsible for after-hour call-outs for other city departments.
Did you know that you can text 911 if you are unable to make a voice call? Text to 911 was not developed as a replacement for calling 911, but can be effective in some situations.
Here are some situations that Text to 911 could be used:
- The caller is hearing and/or voice impaired
- A medical emergency renders the caller incapable of speech
- When speaking aloud would put the caller in danger, such as during a home invasion robbery, an abduction, a domestic violence incident, an active shooter, etc.
Whether calling or texting for emergency services, it’s important to share where you are located and what’s happening. If you’re texting, you’ll receive a response from an Emergency dispatcher. Remember, do NOT use emojis when texting for help.
Text-to-911 is the ability to send a text message to reach 911 emergency call takers from your mobile phone or device. However, because voice calls to 911 provide more information to 911 call centers, you should always make a voice call to 911 during an emergency whenever possible.
Text-to-911 is only currently available in certain locations. The FCC encourages emergency call centers to begin accepting texts, but it is up to each call center to decide the particular method in which to implement and deploy text-to-911 technology.
FCC rules require all wireless carriers and other providers of text messaging applications in the United States to deliver emergency texts to call centers that request them. If a call center requests text-to-911 service, text messaging providers must deliver the service in that area within six months.
To check to see if the 911 call center in your area supports text-to-911. But even in areas where call centers accept text-to-911, existing voice-based 911 service is still the most reliable and preferred method of contact.
How to contact 911
If you use a wireless phone or other type of mobile device, make sure to do the following in an emergency:
- Always contact 911 by making a voice call, if you can.
- If you are deaf, hard of hearing or speech disabled, and text-to-911 is not available, use a TTY or a telecommunications relay service, if possible.
If you attempt to send a text to 911 where the service is not yet available, FCC rules require all wireless carriers and other text messaging providers to send an automatic “bounce-back” message that will advise you to contact emergency services by another means, such as making a voice call or using telecommunications relay service. Bounce-back messages are intended to minimize your risk of mistakenly believing that a text to 911 has been transmitted to an emergency call center when it has not.
Which service providers are not required to support text-to-911?
- The FCC’s text-to-911 rules do not apply to text messaging applications that do not support texting to and from U.S. phone numbers.
- Text messaging apps that only support texting with other app users or texting via social media are not required to support text-to-911.
For more information
To learn more about FCC programs to promote access to telecommunications services for people with disabilities, visit the FCC’s Disability Rights Office website at www.fcc.gov/disability.


- Hewlett Packard Enterprise Aruba AP-303 RW 867 Mbit/s White
The affordable 303 Series 802.11ac campus access points deliver high performance to medium density enterprise environments such as schools, retail branches, warehouses, hotels and enterprise offices, where the environment is cost sensitive. As a Unified AP, they can be operated with (ArubaOS mode) or without a controller (InstantOS mode).
These Wave 2 access points deliver multi-user MIMO (MU-MIMO) and a maximum concurrent data rate of 867Mbps in the 5GHz band and 300 Mbps in the 2.4GHz band (for an aggregate peak data rate of 1.2Gbps).
With an integrated Bluetooth Low-Energy (BLE) radio, the 303 APs can be used as an Aruba beacon for advanced location and indoor wayfinding, asset tracking, and proximity-based push notification services while simplifying the remote management of battery-powered Aruba Beacons.
Get a big performance advantage
Patented ClientMatch™ technology improves performance and eliminates sticky client behavior while roaming.
Protect service quality over the air
AppRF technology enables prioritization and policy enforcement for business-critical enterprise apps like Microsoft Skype for Business.
Integrated Bluetooth Beacon
An integrated Aruba Beacon delivers location services that can be centrally managed.
|Ethernet LAN data rates||10,100,1000 Mbit/s|
|Maximum data transfer rate||867 Mbit/s|
|Networking standards||IEEE 802.3af,IEEE 802.3az|
|> Ports & interfaces|
|Ethernet LAN (RJ-45) ports||1|
|Number of users||256 user(s)|
|Power consumption (typical)||4 W|
|Output voltage||12 V|
|Power consumption (max)||8.8 W|
|> Operational conditions|
|Operating temperature (T-T)||0 - 40 °C|
|Storage temperature (T-T)||-40 - 70 °C|
|Operating relative humidity (H-H)||5 - 93%|
|> Weight & dimensions|
|Package width||190 mm|
|Package depth||180 mm|
|Package height||60 mm|
|Package weight||410 g|
|> Other features|
|Certification||FCC/ISED CE Marked RED Directive 2014/53/EU EMC Directive 2014/30/EU Low Voltage Directive 2014/35/EU UL/IEC/EN 60950 EN 60601-1-1 and EN 60601-1-2|
|Maximum data transfer rate (5 GHz)||867 Mbit/s|
|MIMO type||Single User MIMO|
|Antenna gain level (max)||5.9 dBi|
|Antenna features||Integrated antenna|
Hewlett Packard Enterprise Aruba AP-303 RW 867 Mbit/s White/shop/product/jz320a-hewlett-packard-enterprise-aruba-ap-303-rw-867-mbit-s-white-1610
Once the user has seen at least one product this snippet will be visible.


Editing WhatsApp messages after they’ve been sent… in testing
Yesterday, Monday, WABetaInfo reported that the WhatsApp instant messaging service continues to develop its new feature that allows users to edit sent messages. We tested one of the most requested features – editing messages – in version 22.23. Apple.
At the time, WABetaInfo stated that the feature would allow users to edit messages within 15 minutes of posting them. Thus, this feature will be useful for correcting any error in messages or adding new information to them before the other party sees them.
And while WhatsApp now allows users to delete any message sent before the other party sees it, the feature is intended for users who don’t want to delete messages, but rather modify their content before they are seen.


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