User Manual

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5. The long end of the accessory cable 19B802554P24 which contains the
25 pin D-subminiature receptacle connector is to also be routed along
the bike and any excess is to be coiled up and left under the seat.
6. The driver takes the belt box SM-C70GM and attaches it to his belt.
The helmet kit quick disconnect plug is mated to the belt box quick
disconnect connector.
7. Finally, the other quick disconnect connector of the belt box is mated to
the Helmet Kit Interface Cable quick disconnect connector.
NOTE
The headset option speakers are a nominal 24 ohms. Use of
other impedance vale speakers will result in non-optimum
sound performance from the speaker(s). The SM-K74BP
and SM-K74QA dual speaker helmet kits have the two
speakers wired in parallel. They must be re-wired in series
to perform properly.
NOTE
The Helmet Kit Interface Cables SM-MCH-71GT-2 and
SM-MCK-71GT-2 have a pushbutton switch that only
supports the PTT function. The Interface Cables SM-MCH-
72GT-2 and SM-MCK-72GT-2 have a three-position rocker
switch that supports both the PTT and CG Decode Disable
functions.
Headset Operation
1. If the motorcycle is equipped with the SM-MCH-71GT-2 or SM-MCK-
71GT-2 Motorcycle Interface cable, simply press and hold the PTT
button (and talk into the noise-canceling mic) to transmit. Release the
PTT button to receive. Adjust the volume switch on the control head
for the desired level.
2. If the motorcycle is equipped with the SM-MCH-72GT-2 or SM-MCK-
72GT-2 Motorcycle Interface cable, press and hold the three position
toggle switch to the momentary (PTT) position (and talk into the noise-
canceling mic) to transmit. Release the toggle switch to its center
position to receive. In this center position, the user is in MONITOR
mode because any programmed decoder has been deactivated. To be in
receive mode with any programmed decoders activated, press the toggle
switch to the latched position. Adjust the volume control on the control
head for the desired level.