Operation - Telex BP-1002 Operating Instructions Manual
Beltpacks audiocom intercom system
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Also See for BP-1002:
- Operating instructions manual (24 pages) ,
- Operating instructions manual (8 pages) ,
- Operating instructions manual (19 pages)
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DYNAMIC MICROPHONE AMPLIFIER:
Voltage Gain:
Mic to Channel; 45 ±3 dB, before limiting
Mic to Headphone; adjustable, 65 dB range into 150
ohm
Frequency Response:
200 Hz to 8 kHz +1/-3dB
Total Harmonic Distortion:
Less than 1% at Channel output at 1 kHz
ELECTRET MICROPHONE AMPLIFIER:
Voltage Gain:
Mic to Channel; 24 ±3 dB, before limiting
Mic to Headphone; adjustable, 45 dB ±10% into
150ohm
Frequency Response:
200 Hz to 8 kHz +1/-3dB
Total Harmonic Distortion:
Less than 1% at Channel output
Figure 4. Board Number 9 0 30-7740-000.
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Default Settings
16
SYSTEM POWER
The BP-2002 belt pack receives power externally, in one of two ways:
• Via the intercom channel.
• Via the local-power (pin 2) of the intercom channel connector
The BP-1002 belt pack receives power externally, via the intercom
channel.
Both the BP-1002 and BP-2002 will pass system power through to
subsequent belt packs that are "daisy chained" together.
INITIAL BP-1002/BP-2002 SETUP
The channel termination is initially set for balanced operation, which
is compatible with other Audiocom® equipment. If the unit is going to
be connected to Clear-Com equipment, one switch and several
jumpers must be changed as described in the section on Clear-Com
Setup in this manual.
The headset microphone type is initially set for single-ended dynamic
operation. To change the microphone type to balanced dynamic, refer
to Table 2 for the position of JP9.
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OPERATION
5
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