Grt 10 (Optional; P201 Connector; Power; Volume Lock - Garmin G900X Installation And Maintenance Manual

A.10 GRT 10 (optional)
A.10.1 P201 Connector
Pin Pin Name
1 RESERVED
2 RS-232 TxD
3 RS-232 RxD
4 SIGNAL GROUND
5 RESERVED
6 RESERVED
7 POWER GROUND
8 AIRCRAFT POWER
9

VOLUME LOCK

A.10.2 RS-232
Pin Name
RS-232 TxD
RS-232 RxD
A.10.3 Power
Pin Name
Aircraft Power
Power Ground
A.10.4 Volume Lock
Pin Name
Volume Lock
The volume lock discrete input is used to disable the volume controls of the GRC 10 remote control.
When this input is active low (i.e. grounded when active, and open otherwise), the volume up, volume
down and mute features of the GRC 10 are disabled; all other features of the GRC 10 remain functional.
G900X/G950 Installation and Maintenance Manual – Pinouts
190-00719-00
View of J201 connector from back of unit
1 2 3
6 7 8
4 5
9
Connector
P201
P201
Connector
P201
P201
Connector
P201
I/O
--
Out
In
--
--
--
--
In
In
Pin I/O
2 Out
3 In
Pin I/O
8 In
7 In
Pin I/O
9 In
Page A-81
Revision D