Telex BP-2002, BP-1002 Dynamic Microphone Amplifier, Electret Microphone Amplifier

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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

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Contents Telex Page Introduction End-User License Agreement for Telex Software System Power Initial BP-1002/BP-2002 SetupBP-2002 & BP-1002 Connections and Controls External Connections & Controls Connections and ControlsIntercom Channel Connectors On the BP-2002 Operating Modes Changing Modes of Operation Internal SWITCHES, Jumpers and Adjustments Side Tone Adjustment R145 Internal Switches and Jumpers Connector PIN Configurations Headset ConnectorBP-2002 General Interface RequirementsHeadphone Amplifier Dynamic Microphone Amplifier Electret Microphone AmplifierBoard Number Eliminating MIC-KILL and Call Signal Restoring MIC-KILL and Call SignalGeneral Description Printed Circuit Board Factory Service