Installation Manual

Table Of Contents
Lynx NGT-9000
Installation Manual
0040-17001-01 (Revision W) Appendix A Page A-4
A.2.6.2 RS-422 Interface to WX-500
The RS-422 interface to the WX-500 is optional. The WX-500 provides range and bearing of lightning
discharge points in relation to the aircraft. In addition, the NGT-9000 can also be configured to receive
AHRS information from the WX-500 (using synchro heading). This interface requires two transmit and
two receive connections with the WX-500. NGT-9000 connections are Rx2B, Rx2A, Tx2B, Tx2A (pins
50, 51, 52, & 53).
When interfacing the NGT-9000 to the WX-500, the system must be wired so that the NGT-
9000 is the master/sole controller for the WX-500.
A.2.6.3 GPS Position Source
The RS-422 interface can be used to output the GPS position information of the aircraft. NGT-9000
connections are Tx2B & Tx2A (pins 52, & 53).
A.2.7 ARINC 429 Input
Four ARINC 429 Input receivers are available. The ARINC 429 input can be configured to receive data at
low (12.0 to 14.5 kbps) or high (100 kbps). The ARINC Bus is dedicated to the functions listed below:
ARINC 429 Bus 1 used to input Pressure Altitude data.
ARINC 429 Bus 2 used to input AHRS data.
ARINC 429 Bus 3 is spare. Release 3.2 or later Control Panel #1 data.
ARINC 429 Bus 4 is configurable. Release 3.2 or later Control Panel #2 data.
A.2.7.1 ARINC 429 Input Labels
1. The following ARINC 429 labels are inputs from Pressure Altitude on Bus #1:
Label 203 Pressure Altitude Uncorrected (BNR)
Label 204 Baro Corrected Altitude (BNR)
Label 205 Mach (BNR)
Label 206 Computed Airspeed (BNR)
Label 210 – True Airspeed (BNR)
Label 212 Altitude Rate (BNR)
Label 234 – Baro Correction, mB (BCD)
2. The following ARINC 429 labels are inputs from an Attitude and Heading Reference System (AHRS)
on Bus #2:
Label 314 – True Heading
Label 320 Magnetic Heading
Label 325 Roll Angle (BNR)
Label 335 Track Angle Rate
3. The following ARINC 429 labels are inputs on bus #4 when configured for Combo Bus:
Label 101 – Selected Heading
Label 102 FMS Selected Altitude (SDI set to FMS)
Label 102 MCP Selected Altitude (SDI set to MCP)
Note 1: The Bus is configured for high speed (100 kbps).
Note 2: Release 3.2 or later - The Bus may be configured for high or low speed (12.0 to 14.5 kbps).