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10. PA PTT
PTT output for Power Amplifier.
Output (Solid State or RElay contact) depends on RE/SS
jumper position.
Connector: RCA, when active goes to ground.
TIP – Signal
If the jumper is in the SS position, the switching
transistor (open collector) is connected to the PA PTT
jack. The transistor can switch up to 45V/0.8A. This
position is appropriate for modern Power Amplifiers
with electronic keying. Check the manual of your
amplifier to be sure the power requirements do not
exceed the transistor rating. If the requirements
exceed transistor rating set the jumper to the RE
position - this position connects the relay contact to the
output jack. Maximum rating for the relay is: 48V AC/DC @ 1A.
TIP: If you are not sure about the keying voltage of your Power
Amplifier or LNA, use the RE position.
TIP: the RE/SS jumpers are located on the edge of the circuit
board in front of the PA PTT and LNA PTT jacks.
11. GND
Terminal for connection to station ground.
12. SUB RX
Audio input from transceiver (second receiver - right channel).
Connector: 3.5mm
13. POWER
Power Switch
14. PADDLE
6.3mm (1/4") stereo female for paddle input.
TIP - DIT RING - DAH SLEEVE – GND
NOTE: The paddle sense can be reversed using Router settings
15. PS/2
MiniDIN6 for PS/2 keyboard or PS/2 keypad.
16. FOOTSW
RCA foot switch input. Active when closed to ground.
TIP - Signal SHELL – GND
17. LNA PTT
PTT output for controlling Low Noise Preamplifier or Receive antenna switching.
RCA jack TIP - Signal SHELL - GND
See: 10 – PA PTT
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SHELL – Ground
TIP - Audio RING – no connection SLEEVE – Ground
7
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