Instruction manual

Clear-Com Communication Systems
ICS 92/52 Intercom Panel Instruction Manual
2-4
HEADSET SIDETONE
Sidetone is the sound of the user’s voice in his headset.
To adjust sidetone:
1. Remove the panel cover.
2. Find the sidetone control (marked “P2 Sidetone”) on the main PCB.
See Figure 3.
3. Connect a headset to the panel.
4. While speaking into the headset microphone, use a small
screwdriver to turn the sidetone control until the sidetone is at the
desired level.
5. Re-install the panel cover.
Figure 2-4: Sidetone and Panel Microphone Gain Adjustment Controls
PANEL MICROPHONE GAIN
You can adjust the preamplifier gain of the panel microphone over a
range of 0 to 10 dB; the maximum is the panel microphone gain’s
default setting. However, if two panels are talking to each other at the
same time with the panel microphone gain set to maximum, feedback
may occur even if the speaker mute (see the “Speaker Mute” section,
next) is set to maximum. In this case, it will be necessary to turn the
panel microphone gain down. Similarly, in some noisy environments it
may be necessary to turn the panel microphone gain down and have
the operator talk more closely into the microphone.
To adjust the panel microphone gain:
1. Remove the panel cover.
2. Use a small screwdriver to adjust the control marked “P1” on the
Main PCB. See Figure 3.
3. Reinstall the panel’s cover.
SPEAKER MUTE
When a panel microphone and a speaker are used together, feedback
is possible. To reduce this possibility, the panel software will mute (turn
down) the speaker level by some predetermined amount when both
the microphone and speaker are enabled. The speaker mute can be
adjusted from 0 to 15 dB; its default setting is 6 dB.