Clear-Com Intercom Systems KB-212 Speaker Station
© Clear-Com Intercom Systems 2000
17
Rev. B
Technical Specifications
Panel Microphone Pre-Amp
Input Type: Electret
Gain from panel
mic to intercom line: +25 dB, low sensitivity; +31.5 dB high sensitivity
Pre-Amp Response Curve
Frequency Response: 250 Hz to 12 kHz, contoured for intelligibility
Limiter Range: 20 dB
Speaker Amplifier
Speaker Type: 2.5 in. round, 16 ohm
Power Output: 2 W into 16 ohms
Frequency Response: 200 Hz to 15 kHz, ±3 dB
Signal-to-Noise: 75 dB
Gain from intercom line: +37 dB
Distortion: < 0.5% THD at 1 kHz
Speaker Level: 98 dB SPL at 3 ft.
Program Amplifier
(Transformerless, balanced differential input)
Input Level: -20 dBV
Input Impedance: > 100k ohm
Frequency Response: 150 Hz to 15 kHz, ± 3 dB
Power Requirements
Voltage: 30-VDC standard unit; 16 to 18 VAC with 4-Wire Option
Module
Current: 100 mA average
Internal Connectors
Intercom: five-position, plug-on screw terminals
Program: three-position, plug-on screw terminals
AC Power
(4-Wire Option Module): two-position, plug-on screw terminals
Internal Controls
(3) Option switches; (1) Tone Alert Volume control; (1) Minimum Volume Level control
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