Intermec MobileLAN™ power - PDF

Intermec's MobileLAN power is a plug and play LAN hardware product set that delivers electrical power to the access points on a wireless LAN over existing Ethernet cables, without work-arounds or compromise. It is a cost-saver not only for the warehouse or factory sharing data from terminals, but also for the office LAN supporting laptop users as they roam through the enterprise. MobileLAN power works Intermec's MobileLAN WA21 and WA22 access points.

Cuts Installation Costs
Running AC power to access points can represent over half the cost of installing a wireless LAN. MobileLAN power lowers WLAN installation costs significantly by eliminating the expense of installing separate power cables. This is especially valuable when access points need to be mounted in hard-to-reach places. It also saves on the cost of local AC adapters.

Eases Network Management
MobileLAN power makes network management easy to monitor because all port interfaces and LED displays are on the front panel. In conjunction with a centralized UPS it delivers clean, reliable, uninterrupted power to access points and other devices.

Protects the Existing Investment
Because it works in tandem with an existing Ethernet or Fast Ethernet switch, and connects using standard Category 5 cabling, MobileLAN power preserves the existing LAN or Ethernet cable infrastructure. Over the same lines that deliver power, an interrogation detects power-enabled devices and supplies them with inline power immediately, but automatically protects non-power-enabled devices from receiving power for which they are not equipped. Future investments are also provided for. MobileLAN power supports 10/100mb networks. Multiple power bridges can be added to the wiring cabinet to support more access points as requirements evolve.

How MobileLAN Power Works
Intermec's MobileLAN power system consists of an Ethernet switch, a power bridge (or a power-enabled Ethernet switch) that serves as the power source, and a number of power-enabled data terminals. MobileLAN power bridges are available as 1-port models.

The system is connected in a star topology where each load has a dedicated connection to the centralized power bridge. If a powered device is incompatible with the power bridge, an external splitter is installed.

The power bridge is connected in series to an Ethernet switch/hub (cascaded) where the power bridge's inputs are connected to the switch outputs, and the power bridge outputs are connected to the patch panel. Power is carried over the spare twisted pairs (pins 7 & 8) and (pins 4 & 5) in an ordinary Category 5 cable using RJ-45 connectors and assuring negligible degradation of data communication.

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