Garmin GAD 43e Installation Manual - Page 31

Functional Descriptions, 2.1 Power, 2.2 Power Supply Outputs, 2.3 Serial Data, 2.3.1, RS-232, 2.3.

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4.2 Functional Descriptions 4.2.1 Power Pin Name AIRCRAFT POWER 1 AIRCRAFT POWER 2 AIRCRAFT GROUND AIRCRAFT GROUND Pin I/O 49 In 50 In 47 -- 48 -- The GAD 43 will accept input power from 9 to 33 VDC. At least one of the power inputs must be connected. Power inputs are diode-isolated to support power from multiple busses. 4.2.2 Power Supply Outputs Pin Name +26 VDC OUT 26VAC OUT HI 26VAC LO 5VAC OUT HI 5VAC OUT LO 115VAC REF IN HI 115VAC REF IN LO Pin I/O 6 Out 18 Out 34 -- 36 Out 35 -- 38 In 37 In The GAD 43 will always provide a +26 VDC supply. The intent of this supply is for use with the GAD 43 relays (to provide attitude validity information). When a 115 VAC reference input is provided, the GAD 43 will provide a 26 VAC and 5 VAC output supply that will be in-phase with the provided reference. 4.2.3 Serial Data 4.2.3.1 RS-232 Pin Name RS-232 IN RS-232 OUT RS-232 GND GDU GDU -- Function Pin I/O 17 In 33 Out 46 -- The RS-232 outputs have an output voltage swing of at least ±5V when driving a standard RS-232 load. The serial port can receive/transmit serial data from/to the GDU 620. 4.2.3.2 ARINC 429 Pin Name ARINC 429 IN A ARINC 429 IN B Function AHRS AHRS Pin I/O 16 In 32 In GAD 43 Installation Manual 190-00899-00 Page 4-3 Rev. B

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GAD 43 Installation Manual
Page 4-3
190-00899-00
Rev. B
4.2 Functional Descriptions
4.2.1 Power
Pin Name
Pin
I/O
AIRCRAFT POWER 1
49
In
AIRCRAFT POWER 2
50
In
AIRCRAFT GROUND
47
--
AIRCRAFT GROUND
48
--
The GAD 43 will accept input power from 9 to 33 VDC. At least one of the power inputs must be
connected.
Power inputs are diode-isolated to support power from multiple busses.
4.2.2 Power Supply Outputs
Pin Name
Pin
I/O
+26 VDC OUT
6
Out
26VAC OUT HI
18
Out
26VAC LO
34
--
5VAC OUT HI
36
Out
5VAC OUT LO
35
--
115VAC REF IN HI
38
In
115VAC REF IN LO
37
In
The GAD 43 will always provide a +26 VDC supply.
The intent of this supply is for use with the
GAD 43 relays (to provide attitude validity information).
When a 115 VAC reference input is provided,
the GAD 43 will provide a 26 VAC and 5 VAC output supply that will be in-phase with the provided
reference.
4.2.3 Serial Data
4.2.3.1
RS-232
Pin Name
Function
Pin
I/O
RS-232 IN
GDU
17
In
RS-232 OUT
GDU
33
Out
RS-232 GND
--
46
--
The RS-232 outputs have an output voltage swing of at least ±5V when driving a standard RS-232 load.
The serial port can receive/transmit serial data from/to the GDU 620.
4.2.3.2
ARINC 429
Pin Name
Function
Pin
I/O
ARINC 429 IN A
AHRS
16
In
ARINC 429 IN B
AHRS
32
In