PowerDsine PoE Systems from Microsemi

Providing Flexible, Network-based PoE Power to Polycom IP Telephones

Solution Highlights

Eliminate the cost of installing AC power outlets
Protect current network infrastructure investment
Simple plug & play installation, no configuration or network down time
Allow for a single UPS to support all end devices

Solution Description

PowerDsine's intelligent, multiport PoE midspans provide Polycom IP phones with appropriate power from the network backbone and work in conjunction with the existing switch infrastructure. The midspan is connected close to the Ethernet switch and adds DC power to the data coming from the switch towards the IP phone. The network does not need to be pulled down, nor the existing switch reconfigured. Once the midspan injector is installed, the RJ-45 cable out, will support both the data and the power to the end device. End devices may be positioned up to 100 meters or 330 feet. Only the appropriate amount of power needed by the end device will be sent; this is evaluated by the end devices classification and the intelligence of "dynamic power management" within the midspan port. The PowerDsine PoE midspan injector is an approved network support device by Cisco, Nortel, Foundry and most other infrastructure partners.

The midspan injector is a versatile device and not only will support the Polycom telephony infrastructure, but also WLAN, RFID and IP Physical Security end devices that the Polycom engineer may need to design into the overall application. The PowerDsine midspan injector will support any IEEE 802.3af compliant device, as well as the new IEEE 802.11n technology. Complete management is provided via PowerView Pro giving the end user IT professional or the Polycom engineer full monitoring and control at the PoE port.

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