Garmin G300 for Cessna SkyCatcher, Руководство по установке

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G300 Installation Manual – Pinouts Page A-5
190-00921-01 Revision A
A.2 GMU 44
A.2.1 J441 Connector
Figure A-2. View of J441 Connector Looking at Rear of Unit
Pin Pin Name I/O
1 SIGNAL GROUND --
2 RS-485 OUT B Out
3 SIGNAL GROUND --
4 RS-485 OUT A Out
5 SPARE --
6 POWER GROUND --
7 SPARE --
8 RS-232 IN In
9 +12 VDC POWER In
A.2.2 Power Function
Power-input pins accept 14/28 VDC. AIRCRAFT POWER 2 is for connecting to an alternate power
source, such as on aircraft with two electrical buses.
Pin Name Connector Pin I/O
+12 VDC POWER, GMU 44 P441 9 In
POWER GROUND, GMU 44 P441 6 --
A.2.3 Serial Data
A.2.3.1 RS-232
The RS-232 outputs conform to EIA/TIA-232C with an output voltage swing of at least ±5 V when
driving a standard RS-232 load.
Pin Name Connector Pin I/O
GPS 1 RS-232 IN P441 8 In
A.2.3.2 RS-485
Pin Name Connector Pin I/O
RS-485 OUT A P441 4 Out
RS-485 OUT B P441 2 Out