Garmin GTX 330 Manuel d'installation - Page 22

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Garmin GTX 330 Manuel d'installation
4.2
Power and Lighting Function
Power Input requirements and Lighting Bus input are listed in the following tables. The power-input pins accept
11-33 VDC. Switched Power Out is a power source available for devices such as a remote digital altitude encoder.
4.2.1 Aircraft Power
PIN NAME
AIRCRAFT POWER
AIRCRAFT POWER
SWITCHED POWER OUT
AIRCRAFT GROUND
AIRCRAFT GROUND
4.2.2 Lighting Bus
The GTX 330 unit can be configured to track a 28 VDC, 14 VDC, 5 VDC or 5 VAC lighting bus using these inputs.
The GTX 330 can also automatically adjust for ambient lighting conditions based on the photocell. Refer to sections
5.2.5. and 5.2.6.
PIN NAME
14 V/5 V LIGHTING BUS HI
28 V LIGHTING BUS HI
4.3
Temperature Inputs
Pin Name
TEMPERATURE PROBE 1 OUT
TEMPERATURE PROBE 1 IN
TEMPERATURE PROBE 2 OUT
TEMPERATURE PROBE 2 IN
Temperature is used for Density Altitude computations. Probe #1 is for a voltage mode sensor. Probe #2 is for a
current mode sensor. Refer to section 5.2.11.
GTX 330 Installation Manual
190-00207-02
CONNECTOR/PIN
Table 4-2. Aircraft Power Pin Assignments
CONNECTOR/PIN
Table 4-3. Aircraft lighting Pin Assignments
Connector
P3301
P3301
P3301
P3301
Table 4-4. Temperature Probe Pin Assignments
I/O
P3301 21
P3301 42
P3301 62
Out
P3301 27
P3301 43
I/O
P3301 45
P3301 14
Pin
I/O
38
Out
39
In
41
Out
44
In
In
In
--
--
In
In
Page 4-3
Rev. 1