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Altitude Source Switch.Use the two-position switch to set the source of altitude data for the ATC transponder. When you set the switch to the number 1 position, ADIRU 1 supplies the altitude data. When you set the switch to the number 2 position, ADIRU 2 supplies the altitude data.
The XPNDR FAIL light comes on for these conditions: - Transponder failure - Antenna failure - Control data failure. - Altitude input failure.
When you set the switch to the number 1The ATC/TCAS control panel controls the TCAS computer
The ATC/TCAS control panel controls the TCAS computer.
TEST SWITCH You can use the test button in the center of the switch to do a test of the ATC and TCAS systems.
Electronic Equipment Compartment The TCAS computer is in the electronic equipment compartment.
Flight Compartment These are the components in the flight compartment that interface with TCAS: · Left electronic flight instrument system (EFIS) control panel · Left outboard display unit · Left inboard display unit · Right EFIS control panel · Right outboard display unit · Right inboard display unit · ATC/TCAS control panel.
TCAS - ANTENNA LOCATION General The top TCAS directional antenna is at station 385 on top of the fuselage. The bottom TCAS directional antenna is at station 305 on the bottom of the fuselage.
TCAS - POWER, ANTENNAS, ANALOG, DISCRETE INTERFACES AND PROGRAM PINS General 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. Power The TCAS computer gets 115v ac from AC transfer bus-1 through the TCAS circuit breaker on the P18 circuit breaker panel. Antennas There are two TCAS directional antennas. The TCAS directional antennas receive traffic airplane reply signals. They also transmit the TCAS interrogation signals. Date: 2016-03-03; view: 2431
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