Connecting The Auxiliary Intercom (Optional); Figure 8. D-15D (M478 Da) Connections; Figure 9. D-15B And D-15C (M478 Ba And Ca) Connections - 3M c960 Service Information

Connecting the Auxiliary Intercom (Optional)

The base station must be turned off to enable operation/use of the auxiliary intercom.
1. Connect the auxiliary intercom to the "TO AUXILIARY INTERCOM" terminals on the interconnect module
as shown in Figure 8 through Figure 10 (depending on the model of intercom used).
The presence alert shown is wired to operate only when the Model C960/C860 is turned off.
If a separate outside microphone is used, the auxiliary intercom must be configured for OUTSIDE MIC.
Refer to the Auxiliary Intercom Installation Instructions for information about moving any internal jumpers.
Figure 8. D–15D (M478 DA) Connections
Figure 9. D–15B and D–15C (M478 BA and CA) Connections
*Note
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