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6.0
The Local Handset
The handset provides the user with a local interface to the ICRI, without using a radio. It will allow
an individual to hear and respond to all audio transmitted through the ICRI from the radios and
telephone connected to the ICRI.
Using the handset
Connect the handset to the jack labeled “Handset.”
Make sure to properly align the pins of the plug before inserting into the jack.
After the plug is fully seated on the jack, the locking ring on the plug should be turned clockwise
until the ring cannot be turned further.
Adjusting the volume
The audio level to the handset speaker can be adjusted by the rotating the volume knob above the
jack. Counterclockwise decreases the audio level, and clockwise increases the listening level.
Set the audio level to mid position.
The handset microphone is enabled when the push-to-talk bar in the center of the handset is
depressed and held down.
FIGURE 21: LOCAL HANDSET CONNECTED TO ICRI