Garmin GIA 63 Installation Manual

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GIA 63 Installation Manual 190-00303-05Page 4-20 Rev. Y4.4.1.2 RS-485/422The GIA 63(X) contains a total of 5 channels of RS-485 serial data communications. Any two of thesechannels can also be configured as one RS-422 channel to allow for system flexibility. These data bussesconform to EIA standard RS-485, or RS-422, depending on which mode they are currently operating in.Table 4-12. RS-485/422Pin Name Connector Pin I/ORS-485 3 A/RS-422 IN A P603 27 I/ORS-485 3 B/RS-422 IN B P603 28 I/ORS-485 5 A/RS-422 OUT A P603 36 I/ORS-485 5 B/RS-422 OUT B P603 37 I/ORS-485 1 A P603 23 I/ORS-485 1 B P603 24 I/ORS-485 2 A P603 25 I/ORS-485 2 B P603 26 I/ORS-485 4 A P603 4 I/ORS-485 4 A P603 5 I/ORS-485 4 B P603 6 I/ORS-485 4 B P603 7 I/O