7
IV. Rear Panel Connections
1. TX/RX1, TX/RX2, TX/RX3 jacks: D-SUB 25-pin male jacks that connect via
breakout “pods” to the station transceivers. The pinouts of these jacks are as follows:
Pin No. Function
Pin No. Function
1
Mic +
2
PTT
3
Mic -
4
Mic FN1
5
Mic FN2
6
Mic FN3
7
Mic FN4
8
Key - Ring
9
Key - Tip
10
Line Out - L
11
Line Out -R
12
Spkr - L
13
Spkr - R
14
Amp Relay
15
Amp ALC
16
Aux/Spare 2
17
Aux/Spare 1
18
Aux/Spare 4
19
Aux/Spare 3
20
Line IN
21
CAT - CTS
22
CAT - TXD
23
CAT - RTS
24
CAT - RXD
25
GND
2. KEY Jack: A key or paddle can be connected to this standard 1/4” stereo jack,
with normally open contacts. Keyer paddles should be wired so that the plug’s tip = dot,
and the plug’s ring = dash. An identical key jack on the front panel is wired in parallel
with this jack.
3. LINE IN Jack: This 3.5 mm (1/8”) mono jack is typically connected to the
output from a computer sound card or a TNC. The connected device is routed by the
StationPro to the Line In port of the selected transceiver.
