www.clearcom.com
Americas and Asia-Pacic Headquarters California, United States Tel: +1.510.3337.6600
Europe, Middle East and Africa Headquarters Cambridge, United Kingdom Tel: +44 1223 815000
China Oce Beijing, P.R. China Tel: +86-10-65811360/65815577
© 2011. Clear-Com LLC. All rights reserved. ® Clear-Com, the Clear-Com logo, and Clear-Com Encore are registered trademarks of HM Electronics, Inc.
Clear-Com Encore
TM
MS-702 Two-Channel Main Station
Technical Specications:
dBu is an absolute measurement. 0 dBu is
referenced to 0.775 volts RMS
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
Party Line Output
O Noise: < -74 dBu
Output Impedance: >10 KΩ
Party Line Input
Crosstalk: < -60 dB
Max level before Clipping: >= 12 dBu
Sidetone Null Capability: > 25 dB
Stage Announce/Balanced Line Out
decnalaB:epyT
Output Impedance: >= 200Ω
Load Impedance: >= 600Ω
IFB/Hot Mic
Type : Unbalanced
Output Impedance: 180Ω
Load Impedance: >= 600Ω
Frequency Response
Panel Mic - Party Line: 600 - 10KHz ± 3dB
Headset Mic - Party Line: 200 - 12KHz ± 3 dB
Headset Mic - Line Out: 200 - 12KHz ± 3 dB
Program Input - Party Line: 100 17KHz ± 3 dB
Program Input
- Headset Out: 200 - 10KHz ± 3 dB
Program Input
- Speaker Out: 300 - 10KHz ± 3 dB
Party Line - Headset Out: 200 - 10KHz ± 3 dB
Party Line - Speaker Out: 300 - 10KHz ± 3 dB
Max Distortion
Panel Mic - Party Line: <= 0.5%
Headset Mic - Party Line: <= 0.5%
Headset Mic - Line Out: <= 0.5%
Program Input - Party Line: <= 0.2%
Program Input - Headset Out: <= 0.2%
Program Input - Speaker Out: <= 0.5%
Party Line - Headset Out: <= 0.2%
Party Line - Speaker Out: <= 0.5%
Noise
Panel Mic - Party Line: < -65 dBu
Headset Mic - Party Line: < -70 dBu
Headset Mic - Line Out: < -55 dBu
Program Input - Party Line: < -85 dBu
Program Input - Headset Out: < -60 dBu
Program Input - Speaker Out: < -60 dBu
Party Line - Headset Out: < -50 dBu
Party Line - Speaker Out: < -50 dBu
Max Gain
Panel Mic - Party Line: >= 37 dB
Headset Mic - Party Line: 41 dB ± 2 dB
Headset Mic - Hot Mic Out: 55 dB ± 3 dB
Headset Mic - Announce Out: 55 dB ± 3 dB
Program Input - Party Line: >= -16 dB
Program Input - Headset Out: >= 18 dB
Program Input - Speaker Out: >= 24 dB
Party Line - Headset Out: >= 34 dB
Party Line - Speaker Out: >= 40 dB
Min Gain
Panel Mic - Party Line” <= 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 Connect
ors
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-O 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
Headset: (1) XLR-4M
Front Panel Controls & Indicators
(1) Panel / headset mic switch
(1) Announce button
(1) Party line link button
(2) Program
ON-OFF-INTERRUPT switches
(3) Program level controls
(2) Listen controls
(2) Sidetone null controls
(2) Talk buttons
(2) Call buttons
(1) Tone alert button
(1) RMK button
(1) Speaker ON-OFF switch
(2) Short LEDs
Environmental
32 - 122˚F (0 - 50˚C)
Dimensions
19 in. W x 1.75 in. H x 6.5 in. D
(483 mm x 44 mm x 165 mm)
Weight
6.06 lbs. (2.75 kg)
Notice About Specications
While Clear-Com makes every attempt to maintain the
accuracy of the information contained in its product
manuals, that information is subject to change without
notice. Performance specications included in this manual
are design-center specications and are included for
customer guidance and to facilitate system installation.
Actual operating performance may vary.
MS-702
MS-702 Back Panel
