User's Manual Part 1

CAS / Part No. 9000000

SYSTEM DESCRIPTION AND INSTALLATION MANUAL

34-43-20

15 Feb 2003

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1--58

Table 1--11. RCZ--852 Diversity Mode S Transponder Leading Particulars (cont)

Item Specification

Operating Modes:

• STANDBY................................... Ready but not replying.

• ATCON .................................... T ransponder Modes A and S. No altitude reporting.

• ATCALT ................................... Transponder Modes A, C, and S. Altitude reporting

is enabled.

T ransmitter Frequency ......................... 1090 ± 0.5 MHz

TransmitterPower ............................. 500 W atts peak pulse, 250 Watts minimum

Receiver Frequency ............................ 1030 MHz

Minimum Trigger Level (MTL) .................... -- 7 7 ± 3dBm

Mutual Suppression ............................ Bidirectional, accepts +18 to +70 volt pulse input,

provides +28 volt nominal output

Controller interface:

• CircuitConfiguration .......................... T wo ARINC 429 control data input ports. 12.5 K

bits/s (low--speed ARINC)

Radio System Bus (RSB)

• BusProtocol................................. Bus protocol meets requirements defined in ARINC

718 for receiving transponder and TCAS control

information.

The Radio System Bus (RSB) is designed to work

with the Honeywell Radio Management Unit.

TCAS II Interface:

• CircuitConfiguration .......................... ARINC 429 input and output bus. 100 K bits/s

(high--speed ARINC).

• BusProtocol................................. Bus protocol meets requirements defined in ARINC

718 and ARINC 735 for standard transponder to

TCAS interface.

Airborne Data Link Processor (ADLP) Interface:

• CircuitConfiguration .......................... COMM--A/B messages have an ARINC 429 input

and output bus.

COMM--C/D messages have an ARINC 429 input

and output bus.

Both sets of busses are 100 K bits/s (high--speed

ARINC).

• BusProtocol................................. Bus protocol meets requirements defined in ARINC

718 for standard transponder to ADLP bus interface.

• Exception ................................... COMM--D messages are not processed by this

transponder.