Antenna Connector - Jkt73-3; External Connector - Jkt73-4 - Honeywell BENDIX KING KT 73 Installation Manual

Preliminary - Subject To Change Without Notice
BENDIX/KING
Pin C; SERIAL CLOCK
Used by microprocessor to provide serial clocking for pins A and B.
Pin D; AIRCRAFT GROUND
This pin provides an internal connection to chassis and may be used as the third wire
for RS-232 busses.
Pin E; ARINC429 RX 1A/RS232 RX
Programmable line to receive ARINC 429 TIS control or provide RS-232 RX input for
either ADLP or ADS-B.
Pin F; ARINC429 RX 1B/RS232 TX
Programmable line to receive ARINC 429 TIS control or provide RS-232 TX output for
either ADLP or ADS-B.

Antenna Connector - JKT73-3

Pin 1; RF RX/TX PORT
Receive at 1030 MHz ± 0.01 MHz; Transmit at 1090 MHz ± 1.00 MHz.

External Connector - JKT73-4

Pin A; AUDIO INHIBIT
Mutes audio with input of <3.0 V DC or < 10 ohms. Input > 100 K ohms will not mute.
This input is designed for installations including an EGPWS system. In that case, the
Audio Out discrete of the EGPWS must be connected to this pin.
Pin B; AIRCRAFT GROUND
This pin provides an internal connection to chassis and may be used as the third wire
for RS-232 busses.
Pin C; ARINC429 RX 1A/RS232 RX
Programmable line to receive ARINC 429 TIS control or provide RS-232 RX input for
either ADLP or ADS-B.
Pin D; ARINC429 RX 1B/RS232 TX
Programmable line to receive ARINC 429 TIS control or provide RS-232 TX output for
either ADLP or ADS-B.
Pin E; AUDIO HI
Message audio output.
Pin F; AUDIO LO
Message audio output.
Rev 0, October/2002 10563I00.JA
KT 73
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