PALOMAR
model(s) wire color pn number
DIGICOM 100 Audio 1
  Ground 3
  N/C N/C
  Common 3
  PTT 2
(Hi-Z, Use an amplified mic only) receive N/C
model(s) wire color pn number
21 Audio 2
49 Ground 1
SSB-500 N/C N/C
  Common 1
  PTT 3
  receive 4
model(s) wire color connection
SKIPPER 71B Audio ring
SKIPPER 73 Ground sleeve
  N/C N/C
  Common sleeve
  PTT tip
(Hi-Z, Use an amplified mic only) receive N/C
model(s) wire color pin number
4100 Audio 1
  Ground 2
  N/C N/C
  Common 2
  PTT 4
  receive 3