8.0 Rear Panel Connections
NAME
PINOUT
NOTES
MIC
RJ45 Connectors on Front and
Rear Panel
Pin functions set by internal
programming shunts.
RAD1-RAD4
RJ45 Connectors on Rear
Panel
Pin
Signal
Note
1
Transmit
Audio
To Radio Mic Input
2
Transmit
Audio
Common
To Radio Mic Input
Common or Gnd
3
PTT
To Radio PTT Input
4
GND
Signal Ground
5
Receive
Audio
From Radio Audio
(Speaker) Output
6
GND
Signal Ground
7
Hookswitch
Out to Radio
8
COR
In from Radio
Refer to Section 9.0 for
cable information.
Hookswitch and COR
require Factory Installed
Option Board.
NCS-C250C Instruction Manual Rev J
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