Clear-Com MS-702 Encore 2-Channel Main Station

The MS-702 is a 1RU two-channel main station with programmable front panel buttons, individual channel short-circuit protection, individual channel volume control, and a regulated fail-safe power supply. The MS-702 supports up to 55 beltpacks or 10 speaker stations.

The MS-702 can monitor intercom activity on one or both channels with individual listen-level controls. Monitoring intercom activity is possible through a headset or the internal loudspeaker.

The MS-702 has mic pre-amps with limiters and speech-shaping circuits. An individual electronic momentary/latching Talk button is available for each channel. Illuminated dual-action Talk buttons light an LED dimly when latched: blue-color while in standby, amber-color when latched. The latching feature can be disabled. The channels can be accessed separately or simultaneously without tying them together. A selector switch toggles between the headset or microphone. The Talk buttons can also be controlled with a footswitch.

Clear-Com MS-702 Features

• 2-channel 1RU main station with built-in speaker
• Supports up to 55 beltpacks or 10 speaker stations on 2 channels
• Automatic short-circuit protection and reset with LED indicators
• Visual and audible call signaling
• Individual volume controls for each channel
• Program feed to both channels with selectable Program Interrupt
• Remote mic kill
• Stage announce with relay
• Channel A & B Link switch
• Built-in speaker
• Universal voltage power supply

• MS-702 intercom main station1

• Panel microphone input
  • Input type: electret
  • Input impedance: >=2K
  • Mic limiter threshold: 0dBu ± 3dB
  • Mic limiter range: >= 20dB
• Headset microphone input
  • Input type: dynamic
  • Input impedance: >= 1K
  • Mic limiter threshold: 0dBu ± 3dB
  • Mic limiter range: >= 15dB
• Program line input
  • Max level before clipping: >= 20dBu
  • Input impedance: >= 5K
• Headset output
  • Load impedance: >= 8
  • Output impedance: <= 25
  • Output limiter threshold: +5dBu ± 3dB
  • Max output level before distortion: >= 17dBu
• Speaker output
  • Load impedance: >= 4
  • Max output level before 1% distortion: 20dBu ± 2dBuv
• Partyline output
  • O noise: < -74dBu
  • Output impedance: >10K
• Partyline input
  • Crosstalk: < -60dB
  • Max level before clipping: >= 12dBu
  • Sidetone null capability: > 25dB
• Stage announce/balanced line out
  • Type: balanced
  • Output impedance: >= 200
  • Load impedance: >= 600
• IFB/hot mic
  • Type: unbalanced
  • Output impedance: 180
  • Load impedance: >= 600
• Frequency response
  • Panel mic - partyline: 600 – 10KHz ± 3dB
  • Headset mic - partyline: 200 – 12kHz ± 3dB
  • Headset mic - line out: 200 – 12kHz ± 3dB
  • Program input - partyline: 100 17kHz ± 3dB
  • Program input - headset out: 200 – 10kHz ± 3dB
  • Program input - speaker out: 300 – 10kHz ± 3dB
  • Partyline - headset out: 200 – 10kHz ± 3dB
  • Partyline - speaker out: 300 – 10kHz ± 3dB
• Mains power
  • Input voltage range: 100 - 240V AC
  • Input frequency range: 50-60Hz
  • Input power: <= 60V AC
  • Output voltage: 30V DC ± 0.5V
  • Output current per channel (continuous): 1.2Av
  • Output current per channel (peak): 2A (do not exceed the 1.2A rating for more than 2 seconds per 1 minute period)
  • Short circuit recovery time (1st short): <= 0.5 sec
  • Short circuit recovery time (>= 20 shorts in 20sec): <= 20 sec
• Dimensions (HxWxD)1.75" x 19" x 6.5"
• Weight6.1 pounds (2.8 kg)