Clear-Com_MS-704_RM-704_SB-704_Datasheet.pdf

8/11/2019 Clear-Com_MS-704_RM-704_SB-704_Datasheet.pdf

1/4

The 704 series is Clear-Coms most advanced party-line intercomsystem. Each station is a four-channel intercom with superior audio

and versatile channel access to provide unmatched communicationflexibility. All front-panel controls are intuitive and easy to operate.

The stations front-panel buttons are programmable and can becustomized for a wide variety of applications that will meet thedemands of any stage, studio, or field producer. Separate volumecontrols for every channel ensure the perfect audio mix in theheadset or on the integral speaker.

The SB-704 includes a versatile switching matrix which allows upto ten different groups of stations to be assigned to any one of thefour channels. The regulated power supply in the MS-704 andSB-704 provides power for the entire intercom system.

SB-704 Main Station

This station is similar to the MS-704 main station except the speakeris replaced by a 10 x 4 assignment matrix panel. The assignmentmatrix panel allows you to choose any intercom station or group ofstations connected to the ten inputs of the matrix and assign themto any one of the four intercom channels.

RM-704 Remote Station

The RM-704 remote station is powered directly from the intercomline and requires no external AC power, allowing it to be placedanywhere regardless of available electrical mains. The RM-704 hasall of the same functions as the MS-704, except that it has no powersupply, circuit breaker, or linking function.

www.clearcom.com

Features:

Four Independent Intercom Channelsfor ultimate flexibility

Microprocessor-Controlled Logicassures maximum communicationspower

Universal Voltage Power Supply for100 - 240 VAC operation, with short-circuit protection on each channel

Linking Control instantly links channelstogether in super party line

SeparateTalk and Listen Buttonsfor each channel

Individual Listen Volume Controlsfor each channel

All-Talk Function permits instantcommunications to all four channels

Four Separate Program Inputs areelectronically balanced

Three Interruptible IFB Channelsmake talent cueing easy

Announce Button with Relay for

external paging Visual Call Signaling alerts users

when others want to speak to them

Wide-Range High-Output Speakerfor optimum clarity in all acousticenvironments

Hot-Mic Output allows easyconnection to external IFBs

Adjustable Mic ProximityCompensation reduces acousticfeedback

Superior Contoured Audio insuresexcellent voice intelligibility under allnoise conditions, including high-noiseenvironments

LED buttons for talk, call, announce,link, all talk, and mic on

Remote Mic Kill switch turns off themicrophone talk circuits

Clear-Com Encore TM

MS-704, RM-704, SB-704 4-Channel Intercom Stations

RM-704

SB-704

MS-704


2/4

1. Headset ConnectorXLR 4-pin male

2. Panel Mic ConnectorAllows easy attachment of proprietary9" or 18" gooseneck microphone

3. Mic on Switch/IndicatorBlue-color LED; button illuminates whenthe microphone is active.

4. Mic Select SwitchSelects between the panel mounted

gooseneck mic and the headset mic.

5. Remote Mic KillAmber-color LED turns off the microphonetalk circuits of all Clear-Com beltpacks inthe system (MS-704 & SB-704) .

6. Link ButtonAmber-color LED; links channels B, C,and/or D to Channel A.

7. All Talk ButonAmber-color LED ; sends the station's micsignal to all four channels.

8. Announce ButtonAmber-color LED; directs station's micsignal to dedicated rear-panel "announce"output while activating associated relay

9. Call ButtonRed-color LED; Activates all stationand beltpack call lights on the respectiveintercom channel; also functions asattention-getting Call lights.

10. Listen ButtonGreen-color LED; Turns on LISTENcircuit on corresponding channel.

11. Talk Button

Blue-color LED (on), amber-color LED(off); illuminated dual-action buttons lightup to indicate the on-off status of eachchannels TALK circuit.

12. Volume ControlAdjusts the listening level for both speakerand headset.

13. Speaker On/Off SwitchSelects or deselects the built-in speaker.

14. LoudspeakerHigh-quality loudspeaker is driven by afour-watt proaudio amplifier.

15. Short IndicatorsIlluminates when a short is detected on

one or more of the lines while power willbe supplied to other channels.

16. Panel Mic GainAdjusts the sensitivity of the gooseneckpanel mic.

17.Sidetone AdjustControls the level of your voice as it isheard in your own headset and speaker.

18. Program Interrupt Select (IFB)Selects which channel the programinterrupt will operate.

19. Auto Call SelectSends a call signal automatically when the

TALK button is depressed.

20. Auto Talk/Listen SelectAllows the TALK and LISTEN circuit to beautomatically activated when the TALKbutton is depressed.

21. Latch Disable SelectTALK button is momentary function only.

22. Program LevelAdjusts the level of the Audio Programfeed to the station speaker.

23. Program SelectDetermines which intercom channels theaudio program feed will be sent to.

Headset

Null PgmListen

Channel B

Null PgmListen

Channel A

Null PgmListen

Channel C

Null PgmListen

Channel D

B C DA

Line

Length

Program

Interrupt

B C D

Auto-Talk

/Listen

B C DA

TalkLatch

Disable

B C DAHS

Lim

B C DA

Auto-Call

On

Off

Talk

Listen

Call

Talk

Listen

Call

Talk

Listen

Call

Announce

All Talk

Link On

Mic Select

Panel

Headset

Mic On

Panel Mic

(On)

Off

(Dflt)

Panel MicGain

Ch. B

Ch. A

Ch. C

Ch. D

Short

Long

(Short)

Program

On/Off

B C DA

4-Channel

Main Station

MS-704

Channel A Channel B Channel C Channel D

Volume

Speaker

Sidetone

Adjust ProgramLevel

RemoteMic Kill

1 2 3 4 31110198765 4121

72625242322212029181716151

24. Null ControlUsed in conjunction with line/link switch tominimize intercom channel crosstalk in station.

25. Listen Level ControlAdjusts the listen level for each intercom channel.

26. Program AdjustControls the level of program audio sent out to eachindividual channel.

27. Line Length Select Dip Switch

Compensates for electrical capacitance on eachindividual intercom channel to optimize null adjust.

Matrix Assignment Switch(SB-704 only - not shown)Assigns an intercom station to any one of the fourchannels or to an off or party-line position.

Superior Contoured AudioCompatible with all Clear-Com party-line

intercoms, the 704 series accepts a wide range

of dynamic headsets, with a choice of headset

connectors. Optional plug-in noise-cancellinggooseneck microphones are available in 9 and

18 lengths.

Remote Mic Kill (RMK)The MS-704 is equipped with a global RMK

button. It will turn off the microphone talk

circuits of all Clear-Com beltpacks in the system,

eliminating extraneous noise from the open

headset microphones.

www.clearcom.com

Clear-Com Encore TM


MS-704 Front Panel Features


3/4

www.clearcom.com

Clear-Com Encore TM


28 432303920392

33 31

Auxiliary

Term

On

Off

On

Off

Term

On

Off

On

Off

Channel A

Output: 30V, 1.2AContinuous, 2APeak

ELECTRICSHOCKD O NOT

FIRE OR SHOCK HAZARD DO NOTEXPOSE THIS EQUIPMENT TO RAIN

TO PREVENT

WARNING:

OR MOISTURE.

CAUTION:

REMOVE COVER. NO USER

SERVICEABLE PARTS INSIDE.

REFERTOQUALIFIED SERVICE

PERSONNEL.

MS-704

HotMic/IFB

Channel C

Channel B

Channel D

TO PREVENT

Program In

AnnounceOut

MS-704 Rear Panel Features

28. Power Connector And SwitchEIA power connector for 100 -240 VAC operation.

29. Intercom Connectors (See specifications)

30. Channel Termination SwitchesProvides individual termination for each intercom channel.

31. Announce Output (XLR-M 3-PIN)Line-level transformer-isolated audio output.

32. Program Input #1 (XLR-F 3-PIN)Electronically balanced line-level audio input that is sent to the station or selectively tothe intercom channels.

33. Hot MIC/IFB OutputProvides line-level audio output from mic at all times while on and provides feed toexternal IFB system.

34. Aux Connector (DB-25F)Provides 4 separate Program Inputs, announce Relay contacts, and a footswitch input.

Redundant Failsafe Power SupplyThe 1.2-amp universal switching power supply is a 30-volt regulated supply

with multiple short-circuit protection. It can sense the difference between

a long-term short circuit and an instantaneous overload, allowing the

intercom to continue to operate even when a station is plugged in,

momentarily exceeding the capacity of the power supply. If a shutdown

occurs from a shorted intercom cable, the power supply will recover under

full load when the short is removed.

Easy Access Sub PanelA removable front panel gives the operator easy access to the stations

configuration switches and trim pots. Clearly labeled and simple to adjust,

these controls allow the station to be instantly configured for virtually any

communications application. When configuration is complete, the front

panel re-attaches, revealing only those controls useful for normal operation.

Multiple Program Audio SourcesThe station accepts five separate program audio sources: four line-level

balanced inputs and one assignable line level input. The assignable

program input accepts a balanced signal and is designed for monitoring

external audio in the headset or speaker. The four balanced program inputs

can be used to create individual program feeds on the intercom channels.

Three of these channels can be used for program interrupt.

Technical Specifications:

dBu is an absolute measurement. 0 dBu is referenced to 0.775volts RMS

Panel Microphone InputInput Type: ElectretInput Impedance: >=2KMic Limiter Threshold: 0dBu 3dBMic Limiter Range(MS-704 & RM-704): >= 20dBMic Limiter Range (SB-704): >= 15dB

Headset Microphone InputInput Type: DynamicInput Impedance: >= 1KMic Limiter Threshold: 0dBu 3dBMic Limiter Range(MS-704 & RM-704): >= 17dBMic Limiter Range (SB-704): >= 15dB

Program Line InputMaximum Level beforeClipping: >= 20dBuInput Impedance: >= 5K

Headset OutputLoad Impedance: >= 8Output Impedance: = 17dBu

Speaker OutputLoad Impedance: >= 4Max Output Level before1% Distortion: 20dBu 2dBu

Party Line OutputOff Noise: < -74dBuOutput Impedance: >10K

Party Line InputCrosstalk: < -60dBMax level before Clipping: >= 12dBuSidetone Null Capability: > 25dB

Stage Announce/Balanced Line OutdecnalaB:epyT

Output Impedance: >= 200Load Impedance: >= 600

IFB/Hot MicdecnalabnU:epyT

Output Impedance: 150Load Impedance: >= 600

Frequency ResponsePanel Mic - Party Line: 600 - 10KHz 3dBHeadset Mic - Party Line: 200 - 12KHz 3dBHeadset Mic - Line Out: 200 - 12KHz 3dBProgram Input - Party Line: 100 - 17KHz 3dBProgram Input - Headset Out: 200 - 10KHz 3dBProgram Input - Speaker Out: 300 - 10KHz 3dBParty Line - Headset Out: 200 - 10KHz 3dBParty Line - Speaker Out: 300 - 10KHz 3dB


4/4

www.clearcom.com

Americas and Asia-Pacific Headquarters California, United States Tel: +1.510.337.6600Europe, Middle East and Africa Headquarters Cambridge, United Kingdom Tel: +44 1223 815000China Office 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


Max DistortionPanel Mic - Party Line:

Clear-Com_MS-704_RM-704_SB-704_Datasheet.pdf

Documents

Transcript of Clear-Com_MS-704_RM-704_SB-704_Datasheet.pdf