Specifications

Auxiliary Connector DB9F
Pin
Number
Signal Notes
1 Auxiliary +12vDC Limited to 500 mA ** see note
2 Audio Out 0
600Ω balanced
3 Audio In 0
600Ω balanced
4 Auxiliary PTT Active Low
5 Ops Busy Signal/or Alarm Active Low
6 Ground
7 Audio Out 1
600Ω balanced
8 Audio In 1
600Ω balanced
9 Ground
** The auxiliary supply has a total current capability of 500mA. The current draw from all
connectors when added together must not exceed 500mA. The output is protected by a
thermal auto-reset fuse.