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Not all PoE is Created Equal: Why power is a critical element in IP video surveillance and broadband network planning

One of the most challenging aspect of deploying IP video surveillance networks is the planning of power supply to the networks.  Bandwidth allocation and planning is a challenge, yes, but there are a myriad of options available to supply network bandwidth to a camera or a network.  Power is another subject. It’s more complex due to lack of standardization across the industry and because the options for supplying power are somewhat limited.

In this blog, I’m going to discuss Power over Ethernet and how to best plan for your power requirements.  Power over Ethernet or PoE, which allows a single cable to provide both data connection and electrical power to networked pieces of equipment such as switches, wireless access points, IP video cameras and even licensed microwave bridges. PoE works across standard network cabling (i.e. CAT5) to supply power directly from the data ports to which networked devices are connected. There are two IEEE PoE standards, with power level classifications within the standards and then there are non-standards-based PoE offerings. In order to create some industry standardization on the physical connections that are made between nodes and/or infrastructure devices, the IEEE standards body currently supports two standards. These two standards assure that all devices that use PoE are compatible and will interoperate with each other.  In 2003, the IEEE introduced the 802.3af-2003 standard.  This original PoE standard provides up to 15.4 W of DC power to each device using 48V.In most cases only 12.95 W is assured to be available at the powered device as some power is dissipated in the cable. Examples of devices that only require this lower wattage power include standard box and dome IP cameras, most WLAN access points and IP phones.

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The Smallest Board-level Ethernet Switch Designed Specifically for COTS-compliant Applications


When we recently took our MILTECH 308 Military grade Ethernet switch to AUVSI, there was overwhelming interest in this ultra-compact 8 port Fast Ethernet switch.  UAV manufacturers could now inter-connect video, advanced weaponry, radar and communications systems with an Ethernet switch that’s the size of a credit card.

However, some UAV engineers were asking for the nirvana of ultra-compact.  Removing our MIL-SPEC housing and offering this innovative Fast Ethernet switch as a board-level device. We’ve heard your call and, today, we’re happy to announce the MILTECH 309 — our board-level Fast Ethernet switch that is perfect for extremely tight spaces or as an add-on to an existing board-level computing system already designed in to UAVs.

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What the UGV industry has been waiting for: COTS Ethernet Switching Solutions for Space-constrained Environment


Robots have long been an essential component of industrial production and domestic law enforcement. Updated and multifunctional Unmanned Ground Vehicles (UGVs) are now delivering unprecedented support for military and other law enforcement activities. Some examples of these UGVs include:

US Multifunctional Utility/Logistics and Equipment (MULE) – providing combat support in conflict scenarios. These are designed to reduce dependence on external supply, reduce soldier-carried loads and evacuate casualties. The Ground Unmanned Support Surrogate (GUSS) is another such example.

Armed Robotic Vehicles (ARV) – capable of improvised explosive device (IED) and explosive ordnance disposal (EOD), reconnaissance, communications, CBRNE (Chemical, Biological, Radiological, Nuclear, Explosive)/hazmat, security, heavy lift, defense and rescue missions. The iRobot PackBot and Qinetiq TALON are such examples.

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The Incredible Shrinking Ethernet Switch Every UAV Needs

Both fixed- and rotary-wing UAVs are used extensively in the military for reconnaissance and assault and for a wide variety of commercial applications. These UAVs carry an enormous amount of electronic equipment. To support their mission profiles, they require the use of multiple sensors – visual, infrared, near-infrared, radiation, biological, and chemical. Multiple visual cameras are used to provide 180 degree forward and downward views for remote pilots. Additionally, UAVs use short range radios, satellite, radar and other tactical communications devices to reach back to centralized command. An increasing number of these components are being replaced with modular elements connected via Ethernet.

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The Incredible Shrinking Managed Military-grade Ethernet Switch


Ethernet is rapidly becoming the standard for military and other rugged applications due to proven interoperability, reliability, and speed. The modularity and availability of small, interoperable components has opened up new applications, including the future digital soldier, unmanned autonomous vehicles (UAVs), and robots. An important concern in this deployment of IP-based technology is connectivity: how will the growing number of devices talk to each other in a way that enhances performance, portability, and reliability.

COTS switches are available with all of these capabilities but they are not rugged enough, require AC power, are too large, and weigh too much. In these highly mobile environments, every square inch of space, every ounce of weight, and every watt of power is critical.

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Wireless Gigabit Ethernet Bridges are Helping to Extinguish the Demands of the Healthcare Data Explosion

The explosion in digital medicine and patient care has put an unprecedented demand on networks throughout the medical community. Increasingly, hospitals and medical centers are accelerating the pace of accessing and storing patient’s records via EMRs (electronic medical records), including lab results, pharmaceutical data and PACS (Picture Archiving and Communication Systems). Almost every doctor, nurse, and patient care professional now access vital patient information and records via laptop, smartphone, or Internet-ready tablet.  The intersection of these two forces in medical care has put an extraordinary strain on both the Wi-Fi networks within medical centers and the transport of data between building, facilities and central archives and diagnostic laboratories.

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An 8 Port, MIL-STD, COTS Switch that’s Smaller than a Credit Card?


WLANmall announced today the availability of the Techaya MILTECH 308 ultra-compact Fast Ethernet switch. With dimensions of 3.2” x 2.5” x 1.0”, it is smaller than a credit card and weighs only 0.31 lbs. With the MILTECH 308, systems that require video, advanced weaponry, radar and communications can all be connected with an Ethernet switch that’s the size of a credit card. No one else in the industry has deliver so much power in performance in such a compact device. Today, Techaya sets new standards in compact, ruggedized Ethernet switches.

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WLANmall Becomes Exclusive U.S. Distributor of Techaya Ruggedized Switches and Routers

Will bring MIL-STD, COTS and custom Ethernet communications platforms to the U.S. for Military, Avionics and Autonomous Vehicle applications

WLANmall is proud to announced that they have become the exclusive U.S. distributor for Israel-based Techaya, Inc’s full line of ruggedized, military-grade Ethernet communications solutions. Building upon the products’ successes with international militaries and their suppliers, WLANmall will focus its efforts in bringing these innovative, compact devices to the U.S. military as well as robotic, avionic, ground, and marine vehicle manufacturers.

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Top 10 Reasons Why Ruckus Wireless Users Should Upgrade to ZoneFlex 9.5


For all of our Ruckus wireless access point customers out there, their ZoneFlex 9.5 management software was just recently released.  Here are the top 10 reasons why you should upgrade today.

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New WiFi devices can have a polarizing affect on your WiFi access point performance

How portable devices such as smartphones and tablets are changing the way WiFi access points antenna technology is designed.

One of the least understood properties of a wireless signal is its polarization. Polarization is determined by the way an antenna is mounted, and can usually only be either horizontal or vertical. This is important, especially in point-to-point wireless communication, because only antennas with the same polarization will be able to communicate with each other.

Because polarization determines the antennas that can pick up the signal, you could set up two antennas in close proximity, and pointing in the same direction, but with different polarization. The result would be that antennas which are vertically polarized would only pick up the signal from the vertically transmitting antenna, while only horizontally polarized antennas would pick up the horizontally transmitting antenna signals.

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