190-01499-02 GTX 3X5 Transponder TSO Installation ManualRev. 4 Page 5-95.7 Serial Data Interfaces5.7.1 RS-232The RS-232 outputs are compatible with EIA Standard RS-232C with an output voltage swing of at least± 5 V when driving a standard RS-232 load. The RS-232 inputs and outputs can be configured for differentfunctions depending on the installation. Refer to section 6.5. Pins P3252-5, -10, and -15 are on the GTX345 only.Table 5-9 RS-232 Inputs and Outputs5.7.2 ARINC 429The ARINC 429 output conforms to the ARINC 429 electrical specification when loaded with up to fivestandard ARINC 429 receivers. The ARINC 429 inputs and outputs can be configured for differentfunctions depending on the installation. Refer to section 6.5.Table 5-10 ARINC 429 Inputs and OutputsPin Name Connector Pin I/ORS-232 OUT 1 P3251 9 ORS-232 IN 1 P3251 31 IRS-232 GND 1 P3251 52 ORS-232 OUT 2 P3251 8 ORS-232 IN 2 P3251 30 IRS-232 GND 2 P3251 51 --RS-232 OUT 3 P3251 7 ORS-232 IN 3 P3251 29 IRS-232 GND 3 P3251 50 ---RS-232 OUT 4 P3252 5 ORS-232 IN 4 P3252 10 IRS-232 GND 4 P3252 15 OPin Name Connector Pin I/OARINC 429 OUT A P3251 5 OARINC 429 OUT B P3251 6 OARINC 429 IN 1A P3251 27 IARINC 429 IN 1B P3251 28 IARINC 429 IN 2A P3251 48 IARINC 429 IN 2B P3251 49 I
