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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