The TCAS computer has analog and discrete interfaces with these components:
· Top and bottom TCAS directional antennas
· Landing gear lever switch
· Proximity Switch Electronics Unit (PSEU)
· Ground proximity warning computer (GPWC)
ILF 404, 405, 410, 414-417, 422-429, 451, 501-509, 510-517, 519,
520-527, 536, 541, 542, 551
· Weather radar
· DME/ATC/TCAS suppression coax tees
· Display electronic unit (DEU) 1 and 2
· Remote electronics unit (REU).
Program pins control the configuration of the TCAS computer.