3Com 3C10200 NBX Installation Guide - Page 129

Adding Telephones 129 Figure 36 Connections for 3Com 2101 Basic Telephones 2 1 3 4 1 Ethernet cable (optional; to connect a computer or an Attendant Console to the network) 2 Ethernet cable (to data jack) 3 Power cable. Ask your Administrator how you should power your phone. Then see Table 28 for instructions on how to connect your telephone to power. (Figure 36 shows a connection using an optional AC adapter.) 4 Handset cord (to handset) Using the Telephone's Switch Port Many 3Com telephones contain a two-port Ethernet switch with connectors on the underside of the phone. One port is used to connect the telephone to the LAN and the other port connects a computer or other Ethernet device to the LAN. To connect a computer to the switch port on the telephone: ■ Use a Category 5 UTP cable with RJ-45 connectors. ■ Connect one end of the Category 5 cable to the computer's Ethernet network interface card (NIC). ■ Connect the other end of the cable to the Ethernet switch port on the underside of the telephone. The Ethernet port is labeled with this icon: ■ Do not use the telephone's Ethernet port to connect another 3Com telephone to the system.