The Intercom Case
Pressure
Release Valve
The intercom base unit and accessories case are durable, watertight, and airtight with integrated pressure release
valves. To open the base unit or accessory case, press the black button in the middle of the latch and lift as shown
in figure 4. If the case does not open, the pressure release valve may need to be temporarily opened. This should
equalize pressure and allow the case to be opened. After opening, return the pressure release valve to a closed
position to protect internal components.
Note: When the intercom lid is closed, the system automatically switches off.
Connecting Headsets
The 4100 Portable Intercom System headset includes heavy-duty cables with locking connectors and alignment
features to assure correct wiring. To connect a headset to a cable, visually inspect both connectors for a notch in
the female connector and a mating protrusion in the male connector. Align these items, retract the locking ring on
the female connector, and insert. After insertion, push the locking ring forward and rotate clockwise to lock, as
shown in figure 5. To disconnect cables, reverse the process. The identical process is used for connecting two or
more cables together
To connect cables to the intercom, remove the connector port covers on the intercom and repeat the process
above, as shown in figure 6.
See headset manuals, included with each headset purchased, for individual headset adjustments and setup.
6
SETUP AND CONNECTIONS
Figure 5.
Figure 4.
Figure 6.
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