System Overview
190-01499-02
GTX 3X5 Transponder TSO Installation Manual
Rev. 9
Page 1-12
1.13 Power Specifications
GTX 3X5 units require an input voltage of between 9 VDC and 33 VDC. The maximum input power and current is
based upon maximum reply rates. Input power and current does not include the switched power output.
Table 1-12 Power Specifications
[1] KEEP ALIVE input only applies to units that have an internal GPS.
Unit
Characteristic
Specification
14 VDC
28 VDC
GTX 335
Power input
8 W typical, 15 W maximum
Input current, typical
0.57 A
0.29 A
Input current, maximum
0.86 A
0.43 A
GTX 335, GPS
Power input
10 W typical, 17 W maximum
Input current, typical
0.72 A
0.36 A
Input current, maximum
1.22 A
0.61 A
GTX 345
Power input
10 W typical, 18 W maximum
Input current, typical
0.72 A
0.36 A
Input current, maximum
1.30 A
0.65 A
GTX 345, GPS
Power input
12 W typical, 20 W maximum
Input current, typical
1.07 A
0.54 A
Input current, maximum
1.43 A
0.72 A
GTX 3X5, GPS [1]
KEEP ALIVE input current, typical
65 uA
20 uA
KEEP ALIVE input current, maximum
85 uA
40 uA
