Page 73
1 Dec 2003
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MAINTENANCE MANUAL
CAS-100 COLLISION AVOIDANCE SYSTEM
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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
RA AND TA ALERT RELATED I/O
Three Strapped Pins on
Processor Rear Connector
Audio Level Program Straps
(Airborne). Three Discrete Input.
For adjusting synthesized voice
output of the TCAS processor when
the aircraft is airborne.
Three Strapped Pins on
Processor Rear Connector
Audio Level Program Straps (On
Ground). Three Discrete Input.
For adjusting synthesizer voice output
of the TCAS processor when aircraft
is on the ground.
Audio Tone Generators
Aural Advisory Alerts. Three
discrete outputs for Corrective RA
Tone, Preventive RA Tone, and
TA Tone alerts. (1 second
ground, 20 milliamp maximum).
Supply TA and RA alert output that
start optional tone generators found
externally in the aircraft.
Strapped Pin on Processor
Rear Connector.
Audio tone Enable Program
Strap. Discrete Input.
When strapped, supplies interval of
voice output 1 second to aural
advisory output. When open, drives
aural advisory discrete output.
Annunciator Lamps
Visual Annunciator output. Three
discrete output for Corrective RA
Lamp, Preventive RA Lamp, and
TA Lamp alerts. (On = ground,
200 milliamp maximum).
Supply TA and RA alert output that
start serviceable lamp indicators
found externally in the aircraft.
Strapped Pin on Processor
Rear Connector.
NOTE 1.
On Ground Intruder Disable
Strap. Discrete Input.
Determines if own aircraft is below
1750 feet (radio altitude), intruders
found to be ON GROUND will be
shown.
Strapped Pin on Processor
Rear Connector
RA Status Inhibit Strap. Discrete
Input.
Finds if RA display status is in
operation or prevented.