Inter-M RM-911D - Manual (Page 16)

13 RM-911D/W(REMOTE MICROPHONE)
4 4 . CONNECTING TERMINAl Of ARM-911
Connect to the ARM-911 using CAT5E cable.
The CAT5E pin description is as below.
Pin 1 : RS-422 RX+ (Refer to RM-911W)
Pin 2 : RS-422 RX- (Refer to RM-911W)
Pin 3 : RS-422 TX+ (Refer to RM-911W)
Pin 4 : DC24V
Pin 5 : GND
Pin 6 : RS-422 TX- (Refer to RM-911W)
Pin 7 : AUDIO HOT
Pin 8 : AUDIO COLD
5 5 . AUDIO OUTpUT vOlUME
The audio output volume is increased by turning
the volume clockwise.
The audio output volume is decreased by turning
the volume counter-clockwise
6 6 . SERvICE TERMINAl
This terminal is used only for service purposes.