GTS 8XX/GPA 65 Installation Manual
Page 4-7
190-00587-00
Revision 4TP
4.3 Power
4.3.1 Aircraft Power Functions
This section covers the power input requirements.
4.3.1.1 Aircraft Power
Pin Name
Connector
Pin
I/O
AIRCRAFT POWER 1
P8003
2
In
AIRCRAFT POWER 1
P8003
3
In
AIRCRAFT POWER 2
P8003
4
In
AIRCRAFT POWER 2
P8003
5
In
AIRCRAFT GROUND
P8003
21
--
AIRCRAFT GROUND
P8003 22 --
AIRCRAFT GROUND
P8003
23
--
AIRCRAFT GROUND
P8003
24
--
Pins 2 and 3 are internally connected to form AIRCRAFT POWER 1. Pins 4 and 5 are internally
connected to form AIRCRAFT POWER 2. AIRCRAFT POWER 1 and AIRCRAFT POWER 2 are
“diode ORed” to provide aircraft power redundancy.
4.3.1.2 Remote Power
Pin Name
Connector
Pin
I/O
TRAFFIC SYSTEM REMOTE POWER ON*
P8003
18
In
TRAFFIC SYSTEM REMOTE POWER OFF
P8003
36
In
An asterisk (*) following a signal name denotes that the signal is Active Low.
Used to remotely control power.
Remote Power ON*
ACTIVE: Vin < 3 VDC or grounded (Unit ON)
INACTIVE: Vin > 8 VDC or floating (Unit OFF)
Remote Power OFF
ACTIVE: Vin > 8 VDC (Unit OFF)
INACTIVE: Vin < 3 VDC or floating (Unit ON)
Active Low Remote Power On
(J8003 Pin 18)
Active High Remote Power Off
(J8003 Pin 36)
State Level State
Level
Expected Unit State
Inactive
Vin > 8 VDC or Open
Inactive
Vin < 3VDC or Open
OFF
Active
Vin < 3VDC or Gnd
Inactive
Vin < 3VDC or Open
ON
Inactive Vin
> 8 VDC or Open
Active
Vin > 8 VDC
OFF
Active
Vin < 3VDC or Gnd
Active
Vin > 8 VDC
OFF