ClearCom KB-212 Manuel d'utilisateur télécharger pdf (Page 18)

Clear-Com Intercom Systems KB-212 Speaker Station

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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ClearCom KB-212 Manuel d'utilisateur Page 18