3Com DIA3CV1100-02 manual VCN Access Point Rear Panel

14Visitor and Community Network Access Concentrator Installation Guide

outer wire pair and the two inside wires comprise the inner wire pair, as shown in Figure 7 and Figure 8.

Where there is only one telephone line in a room, the two wires are connected to the inner wire pair of the phone connector shown in Figure 7 and Figure 8. The outer wire pair of the phone connector is not used.

■The inner wire pair carries both voice and digital data.

■The outer wire pair only carries voice.

2Disconnect the punch-down Krone connector for the inner wire pair from the PBX punch-down block.

The outer wire pair remains connected to the PBX punch-down block since it will not carry data.

Figure 7 VCN Access Point Rear Panel

P H O N E L IN E D C -IN

Figure 8 The Four Wires of the Telephone Cable

Inner wire pair

Outer wire Pair

3Connect the punch-down Krone connector of the inner wire pair to the added VCN AP punch-down block. Refer to Figure 9.