High power—Overview and specifications
216 NGT Transceiver System Technical Service Manual
Pinouts of the Power Amp connector on the HPAC
Figure 11: Front view of the Power Amp connector on the HPAC
Table 5: Pinouts of the Power Amp connector on the HPAC
Pin no. Function Input/output Signal level
1 A rail Output 13.6 V nominal
2 Band 1 Input 0 V on selected band
3 Band 2 Input
4 Band 3 Input
5 Band 4 Input
6 Band 5 Input
7 Band 6 Input
8 Band 7 Input
9N/C
10 N/C
11 ALC control Output 3.6 V when transmitting
12 Ground 0 V
13 PTT Input 0 V when transmitting
14 Fault detect TW500A Input 12 V = OK
15 Fault detect TW500D Input 0 V = OK
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