User's Manual Part 1

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2
CAS / Part No. 9000000
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
34-43-20
15 Feb 2003
Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
1--59
Table 1--11. RCZ--852 Diversity Mode S Transponder Leading Particulars (cont)
Item Specification
Altimeter Interface:
• DigitalAirData............................... ARINC 429 or 575 data format. 12.5 K bits/s
(low--speed ARINC). Two altimeter inputs (left and
right altimeters).
• IACAirData ................................. Radio System Bus (RSB) interface supplies the
Honeywell Integrated A vionics Computer (IAC)
digital air data information. Two altimeter inputs (left
and right altimeters).
• EncodingAltimeter ........................... Gillham altitude data format. 11--wire discrete input.
T wo altimeter inputs (left and right altimeters).
Discrete input to enable altitude comparison.
• AltitudeSelection............................. Altitude source (left or right) selected by a discrete
input.
Flight Identifier Interface:
• From Radio Management (RMU) ............... Flight identifier input from the RMU in RSB data
format.
• From Flight Management System (FMS) ........ Flight identifier input from the FMS in ARINC 429
data format. 12.5 K bits/s (low--speed ARINC).
Aircraft Air/Ground Status Interface ............... Two discrete inputs used to indicate the aircraft
air/ground status.
Antenna Selection Interface ...................... A discrete output supplies a GROUND when
transponder is active.
RCB Interface:
• CircuitConfiguration .......................... 2--wire full duplex RS--232 serial link to/from internal
radio communications bus (RCB).
• TransmissionRate ........................... 187.5 K baud
• TransmissionFormat ......................... 1startbit,8databitsand1stopbit
Shop Flash Memory Programming Interface:
• CircuitConfiguration .......................... 2--wire full duplex RS--232 serial port
• TransmissionRate ........................... 19.2 K baud
• TransmissionFormat ......................... 1 start bit, 7 data bits, odd parity and 1 stop bit