Honeywell International Inc. 9PGTPL-100A Manuale Utente

Page 14

1 Mar 2006

TPL-100A Processor / Part No. 940-0530-001

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TPL-100A

 Processor

940-0530-001

Tray-mounted Aeronautical Radio Incorporated (ARINC) 
735A assembly. Contains a microprocessor-based central 
TCAS system control unit and L-band RF 
transmitter/receiver.

The MILACAS-FR Processor is the heart of the system. It 
controls all surveillance, data acquisition, tracking, advisory, 
and air-to-air maneuvering coordination functions in the 
system.

The MILACAS-FR Processor selects directional antenna 
beams, generates and transfers pulsed 1030-MHz RF 
surveillance interrogation data to the TCAS top and bottom 
antennas, and receives 1090-MHz RF reply data from the 
TCAS antennas. The MILACAS-FR Processor examines the 
reply data and determines the threat potential of the intruder 
aircraft.

The MILACAS-FR Processor sends ARINC 429 traffic and 
resolution advisory display data to the TA/VSI, RA/VSI and 
other optional display units. The MILACAS-FR Processor 
also sends ARINC 429 coordination and housekeeping data 
to the Mode S transponder subsystem.

The MILACAS-FR Processor receives ARINC 429 data, 
which includes coordination, pressure altitude, TCAS 
control, own-aircraft  I.D., and own-aircraft maximum 
airspeed from the Mode S transponder.

The MILACAS-FR Processor receives its own aircraft 
information on the following inputs from on-board aircraft 
equipment: 
• magnetic heading, and pitch and roll attitude on an 

AHRS 429 bus or X, Y, Z synchro inputs

• radio altitude from 429 digital or analog radio

altimeters

• discrete inputs from aircraft switches and straps
• discrete advisory inhibit inputs from ground proximity 

and wind shear warning systems, if applicable

• discrete input from an advisory cancel switch.