Accessory Connector Procedures - Motorola GTX Installation Manual

This section provides the connection procedures for the various accessories of the GTX Mobile Radio. The diagrams
are self-explanatory and wherever applicable relevant information is included. The accessory connections shown
are not compatible to other models of Motorola radios. Check the appropriate accessory or technical manual for fur-
ther information.
Table 3-1. GTX Enhanced 12-15 W and 30-35 W
Models - Normal mode operation (S401-1 ON position)
Pin #
1 External Speaker Negative
(CAUTION: Not Ground)
2 External Microphone Audio
3 Microphone PTT
4 External Alarm Output
(Active Low)
5 Flat Transmit Audio
6 Not Used
7 Ground
8 Not used
9 Switch B+ 0.5 Amps Max.
10 Ignition Sense Input
11 External Receive Audio
(Gated, de-emphasized)
12 Public Address Enable
(Active Low)
13 Internal Speaker Positive
14 Remote Hook Switch Input
(Active Low)
15 Receive System Busy Output
(Active Low)
16 External Speaker Postive
June, 2000

Accessory Connector Procedures

Description
6880907Z66-O
Table 3-2. GTX Enhanced 12-15 W and 30-35 W
Models - DATA Mode Operation (S401-1 OFF position)
Pin #
1 External Speaker Negative
(CAUTION: Not Ground)
2 External Microphone Audio
3 DATA PTT
4 Transmission Sense Output
(Active Low)
5 Flat Transmit Audio
6 Not Used
7 Ground
8 Not used
9 Switch B+ 0.5 Amps Max.
10 Ignition Sense Input
11 Flat Receive Audio
12 Speaker Mute Input
(Active Low)
13 Internal Speaker Positive
14 Remote Hook Switch Input
(Active Low)
15 Receive System Busy Output
(Active Low)
16 External Speaker Postive
Section 3
Description
3-1