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2. BASIC OPERATION
• «Mic» button
Mic button turns on or off the microphone of connected headset and the microphone
indication LED. When the microphone is on, it collects the voice and sent it to the intercom
system.
•
«Call» button
Pressing call button will send a call signal to the intercom system. And red LED indicator
above will light.
•
Volume control
This control is used to adjust the volume level which heard from connected headset.
• «Power» LED
A green LED lights to indicate the intercom box is on.
• Sidetone adjustment
The sidetone adjustment is the button next to the clip of the belt. It is used to adjust the level
of the operator’s voice. This adjustment helps to reduce hiss and sizzle. To begin adjusting the
sidetone, put on the headset microphone and adjust volume. Insert a small screwdriver into
the hole and slowly rotate until the voice from the headphones be clear.
3. SPECIFICATION
• Micro amp
:
Micro impedance : 200 Ohm
Voltage gain : 44±3dB
Harmonic distortion : < 1% (1000Hz)
• Casque amp
:
Impedance of charge : 50-600 Ohm
Voltage gain : 31±3dB
Harmonic distortion : < 2% (1000Hz)
• Power supply
:
24V DC, 60mA ±10mA
15-30V DC
• Environment
:
-10~55°C
• Dimensions
:
H105xL87xP48mm
Manuel - LC3.BP1011_EN.indd 4
18/08/2016 16:59:31
