Radio Interfaces Signals - GE 12R II Series Technical Manual

GE
TRANSPORTATION
SYSTEMS
GLOBAL SIGNALING DIVISION
6.4.

Radio Interfaces Signals

This section identifies the Interface signals associated with each connector used in the radio system(s).
6.4.1. External Connector Configurations
The following table shows the standard radio connectors associated with each of the typical RC, LC & SR radio systems.
Although other connector options are possible, this list covers all possible applications knows to date.
Radio Model Description
RC – AAR Remote
LC – Clean Cab
LC – Clean Cab W/Access
nd
LC – Clean Cab W/ 2 Control Head
SR – Serial Remote
nd
SR – Serial Remote W/2
* J8 may be physically mounted on radio in the location typically used by J6. This is to allow for connection to existing cables
which may be to short to reach J8 location on the chassis.
** In some applications J6 is a 15 pin connector.
6.4.2. J1 Antenna
J1 is an industry standard UHF (SO-49) connector used to interface to the voice radio antenna. J1 is connects to CN4 on the
RFPA board with a short piece of wire. This connector is common to all radio systems.
6.4.3. J2 6-Pin Handset
J2 supports an interface to a standard AAR 6-pin handset. Connector Pins, Signal Names, and descriptions are shown in the
table below. This connector is standard on all radio systems and interfaces in a common cable with J3 Program connector to J2
on the RCB.
J2-Pin Signal
A Mic-Audio
B Mic-Com
C PTT
D PTT-Com
E Rec-Audio
F HK
* Either of these signals may be connected to J2-10 if interfacing to a DTMF Palm Mic which requires B+ voltage.
6.4.4. J3 9-Pin Program
J3 provides an interface to a PC used for uploading and downloading firmware, radio statistics or configuration files. This is a
standard 9-pin Mini-D connector. This connector is standard on all radio systems and interfaces in a common cable with J2
Handset connector to J2 on the RCB. J3 interface signals are shown below.
Author:
Date:
Title:
J1
Antenna
X
X
X
X
X
Control Head X
J2 AAR HANDSET SIGNAL INTERFACE
Modulation Input from the handset condenser.
Microphone Audio return (common with radio chassis).
Push-To-Talk radio key input.
PTT Return (common with radio chassis).
Audio output to receiver element in handset.
Optional "Off Hook signal input.
COE Communications Engineering Document
Keith Gilbertson
3/08/02
12RII FCC TECHNICAL MANUAL
J2 J3
Handset PGM
X X
X X
X X
X X
X X
X X
Description
Rev:
Pag
e:
J4 J5 J6 **
4-Pin 23-Pin 12-Pin
X
X
X X
X
X
X
A
15 33
of
J7 J8
Serial 1 Serial
2
*X
X
X X
Mating Connector
RCB J2-1
RCB J2-2
RCB J2-3
RCB J2-4
RCB *J2-5
RCB *J2-6