3M C960, Service Information

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Model C960 Special Instructions for System Manager

3M 2000 May
23
ü
Note
When two systems are used in a cross–lane application, both base stations must
be set to the same channel.
4. With the headset turned OFF, plug one end of the programming cable into
the headset programming jack. See Figure 22.
5. Plug the other end of the programming cable into the base station
programming jack. See Figure 22.
6. Turn the headset ON. Audible tones will be heard in the headset earpiece,
indicating that programming is complete.
7. Repeat Steps 1 through 6 to program the rest of the headsets.
The headset is now programmed to the same channel as the base station. If
interference continues to occur, repeat the channel programming procedure.
After seven channel changes, the original channel will again be encountered. If
none of the 8 channels are interference–free, try 8 additional channels on lane 2
by following the steps below: Note: These steps may be used for single–lane
systems only.
1. On the base station, move jumper J3 to LANE 2.
2. Press the RESET button, or turn the base station OFF, then back ON.
3. Program all headsets with the programming cable by repeating the steps
listed previously in “Changing Channels if Interference is Encountered.”
Outdoors, sound travels best at night when air temperatures are cooler and
background noise is reduced. To allow you to reduce the volume of the menu
sign speaker to a lower, pre–set nighttime level, the base station has a VOLUME
DAY/NIGHT switch. See Figure 23.
Day/Night
Switch
Monitor
Volume
Access
Figure 23.
Normally, the VOLUME DAY/NIGHT switch is always left in the DAY
position.
Changing the
Day/Night Switch
Setting