GE 12R II Series Technical Manual page 19

GE
TRANSPORTATION
SYSTEMS
GLOBAL SIGNALING DIVISION
J8-Pin Signal
J B+
M Common
U RS485-A
S RS485-B
A Mic.-Audio
V Rec-Audio
F I/O
T I/O
K Speaker +
L Speaker -
N N.C.
E Shield
COE Communications Engineering Document
Author:
Keith Gilbertson
Date:
3/08/02
Title:
12RII FCC TECHNICAL MANUAL
J8 19-PIN CONTROL HEAD SIGNAL INTERFACE
13V output to control head, fused.
13V Return
Serial Interface, differential current loop output
Serial Interface, differential current loop output
Control Head 1 Mic audio input to radio
Low level receive audio to control head 2
I/O-1 ID signal to Control Head 2
I/O-2 Master/Slave or Enable to Control Head 2
Speaker output signal to Control Head 2
Speaker output signal t Control Head 2
Not connected
Serial Cable Shield (radio chassis)
Description
Rev:
A
Pag
19 33
of
e:
Mating Connector
RCB J8-1
RCB J8-2
RCB J8-3
RCB J8-4
RCB J8-5
RCB J8-6
RCB J8-7
RCB J8-8
RCB J8-9
RCB J8-10
RCB J7-11
RCB J8-12