Garmin GWX 70 Installation Manual - Page 44

Power Functions, Aircraft Power, Remote On/Off, Table 4-2.

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4.2 Power Functions Power Input requirements are listed in the following tables. The power-input pins accept 14/28 Vdc. 4.2.1 Aircraft Power Table 4-2. Aircraft Power Pin Name AIRCRAFT POWER 1 AIRCRAFT POWER 1 AIRCRAFT POWER 1 AIRCRAFT POWER 1 AIRCRAFT POWER 2 AIRCRAFT POWER 2 AIRCRAFT POWER 2 AIRCRAFT POWER 2 POWER GROUND POWER GROUND POWER GROUND POWER GROUND Connector Pin I/O P751 18 In P751 20 In P751 37 In P751 39 In P751 17 In P751 19 In P751 36 In P751 38 In P751 5 -- P751 8 -- P751 11 -- P751 14 -- Pins 18, 20, 37, and 39 of P751 are internally connected to form AIRCRAFT POWER 1. Pins 17, 19, 36, and 38 of P751 are internally connected to form AIRCRAFT POWER 2. AIRCRAFT POWER 1 and AIRCRAFT POWER 2 are "diode ORed" to provide power redundancy. 4.2.2 Remote On/Off Table 4-3. Remote On/Off Pin Name RADAR REMOTE POWER OFF Connector Pin I/O P751 56 In For GX000 installation RADAR REMOTE POWER OFF must be grounded to pin 8 of P751 (POWER GROUND). GWX 70 Installation Manual Page 4-4 190-00829-01 Rev. C

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GWX 70 Installation Manual
190-00829-01
Page 4-4
Rev. C
4.2
Power Functions
Power Input requirements are listed in the following tables. The power-input pins accept 14/28 Vdc.
4.2.1
Aircraft Power
Pins 18, 20, 37, and 39 of P751 are internally connected to form AIRCRAFT POWER 1.
Pins 17, 19, 36,
and 38 of P751 are internally connected to form AIRCRAFT POWER 2.
AIRCRAFT POWER 1 and
AIRCRAFT POWER 2 are “diode ORed” to provide power redundancy.
4.2.2
Remote On/Off
For GX000 installation RADAR REMOTE POWER OFF must be grounded to pin 8 of P751 (POWER
GROUND).
Table 4-2.
Aircraft Power
Pin Name
Connector
Pin
I/O
AIRCRAFT POWER 1
P751
18
In
AIRCRAFT POWER 1
P751
20
In
AIRCRAFT POWER 1
P751
37
In
AIRCRAFT POWER 1
P751
39
In
AIRCRAFT POWER 2
P751
17
In
AIRCRAFT POWER 2
P751
19
In
AIRCRAFT POWER 2
P751
36
In
AIRCRAFT POWER 2
P751
38
In
POWER GROUND
P751
5
--
POWER GROUND
P751
8
--
POWER GROUND
P751
11
--
POWER GROUND
P751
14
--
Table 4-3.
Remote On/Off
Pin Name
Connector
Pin
I/O
RADAR REMOTE POWER OFF
P751
56
In