Clear-Com MS-222 Communication Master Station 2-Channel
Clear-Com MS-222 Communication Master Station 2-Channel
The MS-222 is a rack-mount, two-channel main station with a speaker, optional goose neck microphone (MS-222GM), regulated power supply and a versatile monitoring system. It features excellent speech intelligibility in all noise-levels. The MS-222 contains two mic preamps with limiters for each microphone input. Each microphone preamp is optimized for the type of microphone used with it. The MS-222’s four-watt power amp can drive a standard Clear-Com headset to levels greater than 110 dB SPL. The MS-222 provides DC voltage and the ability to talk & listen on two separate channels. It supports and monitors two intercom lines containing as many as 30 remote head-set or 6 remote speaker stations.
Specifications:
- HEADSET MICROPHONE PRE-AMP:
- Dynamic Headset Input: Input Impedance – 1 KOhms
- Input Level: 55 dBv nominal
- Frequency Response: 250 Hz to 12 KHz, contoured for intelligibility.
- Gain from Headset to Intercom Line: +41 dB
- PANEL MICROPHONE PRE-AMP:
- Input Level: 45 dBv nominal
- Frequency Response: 250 Hz to 12 KHz, contoured for intelligibility.
- Gain from Headset to Intercom Line: +31 dB
- HEADPHONE/SPEAKER AMPLIFIER:
- Load Impedance: 8 Ohms
- Output Level: at least +20 dBv* across 600 ohm
- Distortion: <0.2% THD at KHz
- Frequency Response: 200-18KHz +/-2dB
- Gain from Intercom Line: +3-7- -d-B
- PROGRAM INPUT:
- Input Level Ref.: -65 dBv* (mic) -15 dBv (line)
- Input Impedance: > 1 KOhms (mic) >100 KOhms (line)
- Frequency Response: 150 Hz to 18 KHz
- INTERCOM LINE DRIVE/RECEIVE CIRCUITS:
- Impedance, Output Load: > 10 KOhms (200Hz – 1 0 KHz)
- Level, Line (200 ohm load): -9 dBv (nominal) +5dBv (max before clip)
- Sidetone Null Capability: > 25 dB (200Hz – 1 0 KHz)
- Crosstalk, Station Induced Ch. to Ch.: >60 dB
- Noise, SN Ratio in Listen Channels: >60 dB
- INTERCOM SYSTEM SPECIFICATIONS (STANDARD CLEAR-COM):
- Usable Line Quality: > 100 Stations
- Total Line Length on One Channel: > 5000 feet
- POWER SUPPLY:
- Output Voltage: +30 Volts
- Output Ripple: < 1 mili volt AC RMS
- Output Noise: < -70 dBv AC RMS
- Current limit: 1.0 A
- CONNECTORS:
- Intercom: 6 XLR-3 (3-CH A, 3-CH B)
- Program: XLR-3F
- SA: XLR-3M
- AC POWER REQUIREMENTS: 105-125/210-250 VAC, 50 to 60 Hz, 60 VA
- PHYSICAL SPECIFICATIONS:
- Dimensions: 19″W x 3.5″H x 1 0.0D (483mm x 89mm x 254mm)
- Weight: 7.4 Ibs. (3.4 Kg)
- Operating Temperature Range: -32-1 22 F (0-50 C)
