Specifications

Typical Connections
* To Slave Amps (see Figure A-2 on page 54)
* To Ambient Level Controller (see Figure A-3 on page 55)
* To Call Stacker (see Figure A-4 on page 56)
* To Digital Feedback Eliminator (see Figure A-5 on page 56)
* To Multiple Digital Message Unit (see Figure A-6 on page 57)
* To Operate Door Speakers (see Figure A-7 on page 58)
* Connecting to an External Audio Source (see below)
Connecting to an External Audio Source
A contact closure and dry audio source can also be used for the Over Ride input. The two conductors flanking the
center conductors provide a dry audio gateway into the system-wide Over Ride. Over Ride is activated by shorting
the outermost conductors together. Maximum contact closure resistance is 1000 ohms.
[53]
Appendix A: Applications
1 - Closure Source
2 - Dry Audio (hot)
3 - Not used
4 - Not used
5 - Dry Audio (return)
6 - Closure Return
TEL LINE
Figure A-1: Over Ride
External Audio RJ11