190-01499-02 GTX 3x5 TSO Installation Manual
Rev. 1 Page 5-8
5.8 Serial Data Interfaces
5.8.1 RS-232
The RS-232 outputs are compatible with EIA Standard RS-232C with an output voltage swing of at least ±
5V when driving a standard RS-232 load.
The RS-232 inputs and outputs can be configured for different functions depending on the installation. See
section ___.
5.8.2 ARINC 429
The ARINC 429 outputs conform to ARINC 429 electrical specification when loaded with up to five
standard ARINC 429 receivers.
The ARINC 429 inputs and outputs can be configured for different functions depending on the installation.
See section ___.
Pin Name Connector Pin I/O
RS-232 #1 TxD P3251 9 O
RS-232 #1 RxD P3251 31 I
GROUND (RS-232 #1 ground) P3251 52 O
RS-232 #2 TxD P3251 8 O
RS-232 #2 RxD P3251 30 I
GROUND (RS-232 #2 ground) P3251 51 O
RS-232 #3 TxD P3251 7 O
RS-232 #3 RxD P3251 29 I
GROUND (RS-232 #3 ground) P3251 50 O
RS-232 #4 TxD P3252 5 O
RS-232 #4 RxD P3252 10 I
GROUND (RS-232 #4 ground) P3252 15 O
Pin Name Connector Pin I/O
ARINC 429 TXA P3251 5 O
ARINC 429 TXB P3251 6 O
ARINC 429 RX1A P3251 27 I
ARINC 429 RX1B P3251 28 I
ARINC 429 RX2A P3251 48 I
ARINC 429 RX2B P3251 49 I
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