GTX 330/33 with ADS-B Out
190-00734-11
Maintenance Manual with ICA
Rev. 1
5-6
5.3.2 TEMPERATURE
INPUTS
Table 11. Temperature Probe Pin Assignments
Pin Name
Pin Number
I/O
Unit
(33/330)
CURRENT TEMPERATURE PROBE OUT
41
Out
Both
CURRENT TEMPERATURE PROBE IN
44
In
Both
5.3.3 ALTITUDE
FUNCTIONS
Parallel gray code altitude inputs are considered active if either the voltage to ground is < 1.9 V or the
resistance to ground is < 375
Ω
. These inputs are considered inactive if the voltage to ground is 11-
33 VDC.
Table 12. Encoded Altitude Pin Assignments
Pin Name
Pin Number
I/O
Unit
(33/330)
ALTITUDE D4
11
In
Both
ALTITUDE A1
2
In
Both
ALTITUDE A2
4
In
Both
ALTITUDE A4
5
In
Both
ALTITUDE B1
7
In
Both
ALTITUDE B2
9
In
Both
ALTITUDE B4
10
In
Both
ALTITUDE C1
8
In
Both
ALTITUDE C2
3
In
Both
ALTITUDE C4
6
In
Both
ALTITUDE COMMON
50
--
Both
5.3.4 DISCRETE
FUNCTIONS
Discrete Outputs
Table 13. Discrete Outputs
Pin Name
Pin Number
I/O
Unit
(33/330)
ALTITUDE ALERT ANNUNCIATE*
19
Out
Both
EXTERNAL SUPPRESSION I/O
31
In/Out
Both
*
INACTIVE: 10
Vin
33VDC or Rin 100k
Ω
ACTIVE: Vin 1.9VDC with
75 uA sink current, or Rin 375
Ω
Sink current is internally limited to 200 uA max for a grounded input
Discrete Inputs
The document reference is online, please check the correspondence between the online documentation and the printed version.
