2-Channel Headset/Speaker Main Station " UL Listed With Built-In 2 Amp Power Supply, Rack Mount (1RU)
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.
Features
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
Specifications
Panel Microphone Input
Input Type: Electret
Input Impedance: >=2K
Mic Limiter Threshold: 0 dBu ±3 dB
Mic Limiter Range: >= 20 dB
Headset Microphone Input
Input Type: Dynamic
Input Impedance: >= 1K
Mic Limiter Threshold: 0 dBu ± 3dB
Mic Limiter Range: >= 15 dB
Program Line Input
Maximum Level before Clipping: >= 20 dBu
Input Impedance: >= 5K
Headset Output
Load Impedance: >= 8
Output Impedance: <= 25
Output Limiter Threshold: +5 dBu ± 3 dB
Maximum Output Level before Distortion: >= 17 dBu
Speaker Output
Load Impedance: >= 4
Max Output Level before 1% Distortion: 20 dBu ± 2 dBu
Partyline Output
Off Noise: < -74 dBu
Output Impedance: >10 K
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: >= 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 ± 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
Rear Panel Controls
(2) Termination On-Off switches
(8) Option switches
(1) Power switch
(1) Tone alert volume control
Front Panel Connectors
Panel Mic: (1) 1/4 in. (0.64 cm) panel mounting jack
