CLEARCOM - MS702

• 2-Channel Headset/Speaker Main Station with built-in 2-amp power supply, rack mount (1RU) – UL Listed
• Compact, feature-laden, single rack-space intercom main station supports up to 40 RS-601 beltpacks, 10 speaker stations or 12 headset stations on two channels. ??Other features include:?- Channel A-B linking ?- Program input with individual channel level controls?- Remote Mic Kill switch?- External relay circuit?- Stage Announce

Panel Microphone Input

• Input Type: Electret
• Input Impedance: >=2KΩ
• Mic Limiter Threshold: 0 dBu ±3 dB
• Mic Limiter Range: >= 20 dB

Headset Microphone Input

• Input Type: Dynamic
• Input Impedance: >= 1KΩ
• Mic Limiter Threshold: 0 dBu ± 3dB
• Mic Limiter Range: >= 15 dB

Program Line Input

• Maximum Level before Clipping: >= 20 dBu
• Input Impedance: >= 5KΩ

Headset Output

• Load Impedance: >= 8Ω
• Output Impedance: <= 25Ω
• Output Limiter Threshold: +5 dBu ± 3 dB
• Maximum Output Level before Distortion: >= 17 dBu

Speaker Output

• Load Impedance: >= 4Ω
• Max Output Level before 1% Distortion: 20 dBu ± 2 dBu

Partyline Output

• Off Noise: < -74 dBu
• Output Impedance: >10 KΩ

Partyline Input

• Crosstalk: < -60 dB
• Max level before Clipping: >= 12 dBu
• Sidetone Null Capability: > 25 dB

Stage Announce/Balanced Line Out

• Type: Balanced
• Output Impedance: >= 200Ω
• Load Impedance: >= 600Ω

IFB/Hot Mic

• Type : Unbalanced
• Output Impedance: 180Ω
• Load Impedance: >= 600Ω

Frequency Response

• Panel Mic – Partyline: 600 – 10KHz ± 3dB
• Headset Mic – Partyline: 200 – 12KHz ± 3 dB
• Headset Mic – Line Out: 200 – 12KHz ± 3 dB
• Program Input – Partyline: 100 17KHz ± 3 dB
• Program Input – Headset Out: 200 – 10KHz ± 3 dB
• Program Input – Speaker Out: 300 – 10KHz ± 3 dB
• Partyline – Headset Out: 200 – 10KHz ± 3 dB
• Partyline – Speaker Out: 300 – 10KHz ± 3 dB

Max Distortion

• Panel Mic – Partyline: <= 0.5%
• Headset Mic – Partyline: <= 0.5%
• Headset Mic – Line Out: <= 0.5%
• Program Input – Partyline: <= 0.2%
• Program Input – Headset Out: <= 0.2%
• Program Input – Speaker Out: <= 0.5%
• Partyline – Headset Out: <= 0.2%
• Partyline – Speaker Out: <= 0.5%

Noise

• Panel Mic – Partyline: < -65 dBu
• Headset Mic – Partyline: < -70 dBu
• Headset Mic – Line Out: < -55 dBu
• Program Input – Partyline: < -85 dBu
• Program Input – Headset Out: < -60 dBu
• Program Input – Speaker Out: < -60 dBu
• Partyline – Headset Out: < -50 dBu
• Partyline – Speaker Out: < -50 dBu

Max Gain

• Panel Mic – Partyline: >= 37 dB
• Headset Mic – Partyline: 41 dB ± 2 dB
• Headset Mic – Hot Mic Out: 55 dB ± 3 dB
• Headset Mic – Announce Out: 55 dB ± 3 dB
• Program Input – Partyline: >= -16 dB
• Program Input – Headset Out: >= 18 dB
• Program Input – Speaker Out: >= 24 dB
• Partyline – Headset Out: >= 34 dB
• Partyline – Speaker Out: >= 40 dB

Min Gain

• Panel Mic – Partyline: <= 25 dB

Mains Power

• Input Voltage Range: 100 – 240 VAC
• Input Frequency Range: 50 – 60 Hz
• Input Power: <= 60 VAC
• Output Voltage : 30 VDC ± 0.5V
• Output Current per Channel (Continuous): 1.2 A
• Output Current per Channel (Peak): 2 A (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

Station Capacity

• Up to 40 RS-601 beltpacks or 10 speaker stations or 12 headset stations distributed over both channels

Rear Panel Connectors

• Intercom: (6) XLR-3M (3 per channel)
• Announce Out: (1) XLR-3M (audio)
• Announce Relay: (1) 1/4 in. (0.64 cm) phone jack (relay)
• Program: (1) XLR-3F
• Hot Mic / IFB Interface: (1) 1/4 in. (0.64 cm) phone jack
• AC Power: IEC 320 connector

Front Panel Connectors

• Panel Mic: (1) 1/4 in. (0.64 cm) panel mounting jack
• Headset: (1) XLR-4M

Environmental

• 32 – 122?F (0 – 50?C)