Connectors
362 Manpack Transceiver 2110 series Reference Manual
Pinouts of the 15-way GPIO connector on the interface adaptor
The GPIO connector is used to interface a variety of third-party products such as morse
keys, GPS units etc.
Figure 65: Front view of the 15-way GPIO connector on the interface adaptor
The following sections describe the function of the 15-way GPIO connector and
corresponds to the information provided in Table 51.
Table 51: Pinouts of the 15-way GPIO connector on the interface adaptor
Pin no. Function Input/output Signal level
1 RTS Output RS232
2 RS232 Rx data Input RS232
3 RS232 Tx data Output RS232
4 Ground 0 V
5 Tx audio (10 k balanced) Input 300 mV p–p ALC threshold
6 Not connected
7 Not connected
8 A rail protected
(2 A maximum)
Output +13.6 V nominal
9 CTS Input RS232
10 PTT Input 5 V logic active low
11 Morse Input 5 V logic active low
12 Not connected
13 Quiet (Q) line Input 5 V logic active high when
Fax/Data mode selected
5 V logic active low when all
other modes selected
14 System audio unbalanced Output 1 V p–p (20 dB above AGC)
600 load maximum
15 Tx audio (10 k balanced) Input 300 mV p–p ALC threshold
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