3Com 3C10200 NBX Installation Guide - Page 147

Verifying an Analog Terminal Adapter or the ATA Port 147 operation, expect lower quality voice calls on that port. If you configure the port for voice calls, the performance is not optimized for faxes. Using Power over Ethernet with a 3C10400B ATA The NBX Analog Terminal Adapter 3C10400B meets the IEEE 802.3af standard for Power over Ethernet and can accept power directly from an 802.3af-compliant power source. Earlier models of the ATA, 3C10120B, require an AC power converter due to their power requirements. The table describes how to connect a powered Ethernet cable to a 3C10400B Analog Terminal Adapter. Power Source Connection Details Power over Ethernet (IEEE 802.3af) power source Connect the powered Ethernet cable directly to the telephone's Ethernet connector. No separate power connection is required. 3Com Ethernet Power Source: ■ 3C10220 (12-port) ■ 3C10222 (24-port) The 3Com Ethernet Power Source predates 802.3af. Any NBX device can be powered by a 3Com Ethernet Power Source if you use an NBX Power Splitter (3C10223 - package of 12). The NBX Power Splitter removes power from a powered Ethernet 3C10223 cable and splits it into a power jack and an unpowered Ethernet connection that you connect to the ATA's LAN port (labeled LAN) and power connection (labeled ). CAUTION: You can damage an NBX device by using an NBX power splitter (3C10223) with the 3Com Network Jack Power over Ethernet Multiport Midspan Solution (3CNJPSE24). Use the NBX power splitter (3C10223) only with the 3Com Ethernet Power Source (3C10220, 12-port, or 3C10222, 24-port). Verifying an Analog Terminal Adapter or the ATA Port After the NBX system has discovered an Analog Terminal Adapter or the ATA port on an NBX V3000, you can verify that the port has been properly discovered and see which extension number the system has assigned. The system assigns the next lowest available extension to the analog port.