DBP Digital Beltpack Basic Operation | en 33
Bosch Security Systems, LLC
Technical Manual
2021-06 | 01 | F.01U.380.825
3. Rotate the A/C shaft encoder to adjust the volume.
The volume bar increases or decreases depending on the adjustment made. The belt pack
exits volume adjustment mode after five seconds of inactivity.
Notice!
To adjust the volume for key B and D, follow the same instructions for key A and C, except
use the B/D shaft encoder.
Mute a PL assignment key
In PL mode, listen is always on. You can mute PL assignments so only one PL assignment is
heard.
To mute an individual PL key, do the following:
1. Click either shaft encoder.
The master volume activates.
2. Click the A/C shaft encoder once for key A and twice for key C.
The listen volume adjustment for the key activates and a volume bar appears on the key.
3. Click and hold the A/C shaft encoder until Muted appears on the individual PL key
assignment.
4. Repeat steps 1 through 3 to mute other key assignments.
To unmute a key, do the following:
1. Click either shaft encoder.
The master volume activates.
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