microHAM microKEYER Manual page 8

(6) - MIC EXT:
3.5mm (1/8") connector for external microphone input.
TIP - Microphone input
RING - NC
SHELL - Microphone Ground
NOTE: When using the 3.5mm connector, the RJ45 microphone input is muted, but all controls on
the microphone connected to RJ45 (buttons, PTT) will operate normally.
(7) – MIC:
RJ45 jack for microphone.
If the original radio microphone uses a connector other than an RJ45 an adapter is provided in
the cable set. All microphone controls are connected to the DB37 Radio connector
(pins 12-15 and 30-33)
(8) - LINE OUT:
3.5mm (1/8") jack – connects to computer Line Out
TIP - Signal
RING - NC
SHELL - Signal Ground
(9) - LINE IN:
3.5mm (1/8") jack – connects to computer Line In
TIP - Signal
RING - NC
SHELL - Signal Ground
(10) - MIC IN:
3.5mm (1/8") jack – connects to computer Mic In
TIP, RING - Signal
SHELL - Signal Ground
WARNING: DO NOT use a mono cable between MIC IN and the computer Mic Input
(11) – PADDLE:
6.3mm (1/4") stereo female for paddle input.
TIP - DIT
RING - DAH
SHELL - GND
NOTE: The paddle sense can be reversed using Router settings
(12) – FOOTSWITCH:
TIP - Signal
SHELL - GND
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RCA foot switch input. Active when closed to ground.
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