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Headset Microphone Pre-Amp |
Input Type: Dynamic
Impedance: 1k ohm
Input Level: -55 dBu nominal; -10 dBu max.
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Panel Microphone Pre-Amp (KB-211GM only) |
Input Type: Electret
Input Level: -45 dBu nominal
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Pre-Amp Response Curve |
Frequency Response: 250 Hz to 12 kHz, contoured for intelligibility
Limiter Range: 20 dB
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Headphone Amplifier |
Load Impedance Range: 50 ohm to 2k ohm
Output Level: at least +20 dBu across 600 ohm
Distortion: < 0.5% THD at 1 kHz
Frequency Response: 200 Hz to 15 kHz, ±3 dB
Power Output: 110 dB SPL
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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
Distortion: < 0.5% THD at 1 kHz
Speaker Level: 98 dB SPL at 3 ft.
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Program Amplifier (Transformerless,
balanced differential input) |
Input Level: -20 dBu
Input Impedance: > 100k ohm
Frequency Response: 150 Hz to 15 kHz, ± 3 dB
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Power Requirements |
Voltage: 30-VDC standard unit; 16- to 18-VAC with 4-Wire Option
Module
Current: 100 mA average
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Internal Connectors |
Program: Three-position, plug-on screw terminals
AC Power: Two-position, plug-on screw terminals
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Front Panel Connectors |
Panel Mic: (1) 1/4-in. panel mounting jack
Headset: (1) XLR-4M
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Front Panel Controls & Indicators |
Panel/headset-mic switch: (1)
Program-level control: (1)
Intercom-volume control: (1)
Sidetone control: (1)
Talk button: (1)
Answer-back button: (1)
VOX control: (1)
Talk/listen selector: (1)
Speaker on-off switch: (1)
Talk light: (1)
Call-waiting light: (1)
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Environmental |
32° to 122° F (0° to 50° C)
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Dimensions |
8.25 in. W x 4.5 in. H x 1.75 in. D (210 mm x 114 mm x 44 mm)
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Weight |
ICS-22 1.34 lb. (0.61 kg)
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