Installation Manual

Lynx NGT-9000
Installation Manual
0040-17001-01 (Revision W) Appendix A Page A-17
PIN 28
Signal Name:
DISC_IN2 (Discrete Input No. 2)
Signal Function:
Audio Mute
Electrical Characteristics:
GND/Open (GND active)
Ground State ≤ 3.5Vdc, Open State ≥ 18Vdc
Connection:
24 AWG wire
Comments:
When active all traffic alerts are suppressed.
Connected to other CAWS alerting systems if required
(i.e. TAWS) that needs to mute the traffic system for a
higher priority audio annunciation.
See paragraph A.2.9.
PIN 29
Signal Name:
DISC_IN3 (Discrete Input No. 3)
Signal Function:
WOW (Squat / Air Speed Monitor input/ Collective Switch)
Electrical Characteristics: DCM selectable for GND active or Open active.
Ground State ≤ 3.5Vdc, Open State ≥ 18Vdc
Connection:
On/Off Switch
24 AWG wire
Comments:
See paragraph A.2.9.
PIN 30
Signal Name:
DISC_IN4 (Discrete Input No. 4)
Signal Function:
Audio Acknowledge
Electrical Characteristics:
GND/Open (GND active)
Ground State ≤ 3.5Vdc, Open State ≥ 18Vdc
Connection:
Momentary Switch
24 AWG wire
Comments:
Only used when the optional TAWS, TAS, TCAS, or
ATAS functionality is configured. See paragraph A.2.9.
PIN 31
Signal Name:
DISC_IN5 (Discrete Input No. 5)
Signal Function:
Spare
Release 3.2 - Control Panel Select
Electrical Characteristics:
GND/Open (GND active)
Ground State ≤ 3.5Vdc, Open State ≥ 18Vdc
Release 3.2 – GND = Control Panel 1, Open = Control
Panel 2)
Connection:
No Connection
Release 3.2 – Configuration Option. Used on NGT-
9000R for dual ARINC 429 control panels.
Comments:
See paragraph A.2.9.