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Cisco IP Phone Administration Guide for Cisco CallManager 3.2, Cisco IP Phones 7960/7940/7910
78-10453-04
Chapter 4 Adding the Cisco IP Phone 7914 Expansion Module
Installing the 7914 Expansion Module
Figure 4-5 Thumb Screw Connections
Connecting the RS 232 Cable
To connect the RS 232 cable, follow these steps, and refer to the following table,
which depicts the “in” and “out” icons on the RS 232 jacks.
Procedure
Step 1 Plug one end of the RS 232 cable into the jack labeled RS 232 on the
Cisco IP Phone 7960, as shown in Figure 4-6.
Step 2 Plug the other end of the RS 232 cable into the RS 232 jack with the “in” icon
underneath on the 7914 Expansion Module.
1 Slots on the 7914 Expansion Module
2 Hooks on the support bar
3 Insert and rotate the Expansion Module into the support bar
4 Tighten the thumb screws
In icon Out icon