MAINTENANCE MANUAL
CAS-100 COLLISION AVOIDANCE SYSTEM
Page 75
1 Dec 2003
34-45-4
7
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Table 15. TPA-100A TCAS Processor Inputs and Outputs
(cont)
Source Or
Destination
Processor I/O Signal
Name and Type
General
Description
SUPPRESSION BUS RELATED I/O
Own Aircraft L-Band
Equipment
Suppression Pulse input/output
Bi-directional bus. An input pulse
suppresses the TCAS receiver. An
output suppression pulse suppresses
other L-band equipment in the
aircraft.
POWER RELATED I/O
Own Aircraft Power
Supplies Fan On TCAS
Processor Assembly
Tray
115 V 400 Hz or 28 V dc and 26 V ac
reference power input.
115 V 400 Hz output (or from 28 V dc
source).
Provide power to the TCAS
processor from own aircraft power
sources.
Supplies energizing power from the
TCAS processor to the cooling fan on
the processor assembly tray.
NOTES:
1. Not used with Change 7 units. On ground intruders never shown.
2. An ARINC 429 output is also supplied for an optional digital-type flight recorder. See the output to
RA/VSI No. 1.