Garmin GRS 77, Руководство по установке

Страница: 36 / 64

Page 4-4 GRS 77/GMU 44 Installation Manual
Revision L 190-00303-10
4.3 Serial Data Electrical Characteristics
4.3.1 RS-232 Input/Output
Table 4-4. RS-232 Pin Assignments, P771 and P441
Pin Pin Name Description I/O
P771-11 GPS 1 RS-232 IN Data In In
P771-6 GPS 2 RS-232 IN Data In In
P771-8 SPARE RS-232 IN 1 Data In In
P771-26 GPS 1 RS-232 OUT Data Out Out
P771-21 GPS 2 RS-232 OUT Data Out Out
P771-23 SPARE RS-232 OUT 1 Data Out Out
P771-10 MAGNETOMETER RS-232 OUT Data Out Out
P441-8 RS-232 IN Data In In
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. Refer to Figures B-1 and B-2 in Appendix B for the RS-232 serial data
interconnections.
4.3.2 RS-485 Input/Output
Table 4-5. RS-485 Pin Assignments, P771 and P441
Pin Pin Name Description I/O
P771-39 MAGNETOMETER RS-485 IN B
Data In
In
P771-25 MAGNETOMETER RS-485 IN A
Data In
In
P771-40 MAGNETOMETER GROUND Ground --
P441-4 RS-485 OUT A Data Out Out
P441-2 RS-485 OUT B Data Out Out