Installation guide

RadioPro IP Gateway Installation and Configuration Guide
43
Appendix – Radio Interface Cables
NEXEDGE Interface Cable # S2-61769
Signal Name
DE-9 Pin #
(IP Gateway)
DB-25 Pin #
(Radio)
Tx+ (Mic audio to radio) 4 6
Tx- (Mic audio to radio) 5 25
Rx+ (Speaker audio from radio) 8 19
Rx- (speaker audio from radio 9 18
Tx Data (from radio) 1 3
Rx Data (to radio) 6 2
Digital Ground 3 7
MOTOTRBO Interface Cable # S2-61431
Signal Name
DE-9 Pin #
(IP Gateway)
USB Pin #
(IP Gateway)
Accessory Connector
(Radio)
Tx+ (Mic audio to radio) 4 11
Tx- (Mic audio to radio) 5 16
Rx+ (Speaker audio from radio) 8 14
Rx- (speaker audio from radio 9 16
12v Accessory 2 25
USB Data + 3 1
USB Data - 2 2
USB 5Vdc 1 3
USB Gnd 4 4
Basic Tx/Rx Interface Cable # 89-12109
Signal Name
DE-9 Pin #
(IP Gateway)
Signal Description
Tx+ (Mic audio to radio) 4
Transformer isolated, 600 ohms
Tx- (Mic audio to radio) 5
Rx+ (Speaker audio from radio) 8
Transformer isolated, 600 ohms
Rx- (speaker audio from radio 9
Carrier Sense (from radio) 1
Optically-isolated input
2.5-24vdc required for activation
PTT (to radio) 6
Optically-isolated output, open collector
External pull-up required to 5-12vdc
Digital Ground 3