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Accessory Connector (16 Channel Models Only)
GM300 Radio Service Software Manual
6-20
6880902Z36-B
October, 1996
Accessory Connector Function Tables
6
Table 6-3.
Accessory Connector Output Functions
Function
Function Type
Description
NULL2
Independent
Pin has no function
External Alarm
Independent
Driver pin for external relay
when an Alert is received
PL/DPL & CSQ Detect
Independent
Pin is active when TPL/DPL and
carrier are detected
CSQ Detect
Independent
Pin is active when a carrier is
detected by the radio
Data Clock Out
Dependent
Output to the DTMF Decoder
board
Phone Patch Inhibit
Dependent
Output to inhibit the phone
patch when radio is handling
priority activity
Clear-To-Send
Independent
Handshake with RTS to commu-
nicate with external device;
audio path is ready
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