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MS440 Data Sheet/99 - Murray Tregonning & Associates

1. Adjusts the listen level for each intercom channel 28 NULL CONTROL Used in conjunction with line link switch 30 to mini mize intercom channel cross talk in station 29 PROGRAM ADJUST Controls the level of program audio sent out to each individ ual channel 30 LINE LENGTH SELECT DIP SWITCH Compensates for electrical capacitance on each individual intercom channel to optimize null adjust 31 MATRIX ASSIGNMENT SWITCH SB 440 ONLY Allows you to assign an inter com station to any one of the four channels It also allows the station to be assigned to an off or party line position 4 Channel Intercom Stations MS 440 Rear Panel 32 POWER CONNECTOR AND SWITCH EIA power connector for 90 240 VAC operation 33 INTERCOM 34 CHANNEL TERMINA TION SWITCHES Provides individual termination for each intercom channel 35 ANNOUNCE OUTPUT 36 PROGRAM INPUT I XLR F 3 PIN Electronically balanced line level audio input that is sent to the station or selectively to the intercom channels 33 34 37 HOT MIC IFB OUTPUT Provides line level audio output from the mic at all times mic is on Provides a feed to Clear Com s external IFB system 38 AUX CONNECTOR DB 25F Provides various inputs and outputs to the station e Four separate Program Inputs that can be sent to the CONNECTORS See specifications XLR M 3 PIN Line level transformer isolated audio output individual in
2. 4 Channel Intercom Stations MS 440 RM 440 SB 440 MS 440 FEATURES e Four Independent Intercom Channels for ultimate flexibility EOE He e Microprocessor Controlled Logic assures maximum communications power SB 440 e Universal Voltage Power Supply for 90 240 VAC operation with short circuit protection on each channel e Linking Control instantly links channels GENERAL DESCRIPTION together in super party line a a The 440 series is Clear Com s most advanced party line intercom system Each e Separate Talk and Listen Buttons for each channel station is a four channel intercom with superior audio and versatile channel access e Individual Listen Volume Controls to provide unmatched communication flexibility All front panel controls are intu for each channel itive and easy to operate The station s front panel buttons are programmable and e All Talk Function permits instant a can be customized for a wide variety of applications that will meet the demands of communications to all four channels any stage studio or field producer Separate volume controls for every channel e Four Separate Program Inputs are electronically balanced ensure the perfect audio mix in the headset or on the integral speaker e Three Interruptible IFB Channels The SB 440 includes a versatile switching matrix which allows up to ten different make talent cueing easy groups of stations to be assigned to any one of the four
3. ANEL MIC CONNECTOR Allows easy attachment of pro prietary 9 or 8 gooseneck microphone 5 MIC ON SWITCH Activates the gooseneck or headset mic 6 MIC ON INDICATOR LED Illuminates when the microphone is active 7 MIC SELECT SWITCH Selects between the panel mounted gooseneck mic and the headset mic 8 LINK BUTTON Instantly links channels B C and or D to Channel A creat ing a Super Party Line 9 ALL TALK BUTTON Sends the station s mic signal to all four channels regardless of whether those channels are currently assigned 10 ANNOUNCE BUTTON Directs the station s mic signal to a dedicated rear panel Announce output while simultaneously activating an associated relay 11 LISTEN BUTTON Turns on the LISTEN circuit on the corresponding intercom channel allowing the user to hear activity on that channel 12 LISTEN LED INDICATOR luminates when the channel s LISTEN circuit is on 13 TALK BUTTON WITH BUILT IN CALL LIGHT These illuminated dual action buttons light up to indicate the on off status of each channel s TALK circuit Translucent labels can be installed behind the key caps for easy identification These buttons also function ds attention getting Call lights When the Call but ton is pressed at another sta tion this button flashes to attract your attention 14 CALL BUTTON Activates all station and belt pack call lights on the respec tive intercom chan
4. channels A convenient Announce Button with Relay for link feature ties all four channels into one giant party line for rehearsal or staff external pagin Ae check The stations have adjustable mounting ears that can be removed for desktop e Visual Call Signaling alerts users when others want to speak to them operation The regulated power supply in the MS 440 and SB 440 provides power Wide Range High Output Speaker for the entire intercom system These stations have front panel short circuit indica for optimum clarity in all acoustic environ tors to show if a short has occured on any of the four intercom lines Other features ments include separate audio sources for all intercom channels and three built in IFB pro e Hot Mic Output allows easy a A ee gram interrupts for talent cuing e Adjustable Mic Proximity Compensation reduces acoustic feedback e Superior Contoured Audio insures excellent voice intelligibility under all noise conditions including high noise environments PLIO PROFESSIONAL INTERCOM PRODUCTS Shown with optional gooseneck mic by Clear Com 4 Channel Intercom Stations MS 440 Front Panel 1 2 34 6 7 8910 0 12 13 14 15 16 17 18 19 20 21 22 2324 25 1 RESET SWITCH Instantly restores operation in the event of a DC power short 2 POWER INDICATOR llluminates to indicate when power Is on 3 HEADSET CONNECTOR XLR 4 pin male 4 P
5. ctors WEIGHT MS SB 440 9 7lbs 4 4kg RM 5 9lbs 2 7kg Clear Com Intercom Systems 4065 Hollis Street Emeryville CA 94608 3505 510 496 6666 Fax 510 496 6699 www clearcom com International Sales PO Box 302 Walnut Creek CA 94597 925 932 8134 Fax 925 932 2171 1999 Clear Com Intercom Systems PL Pro is a Registered Trademark of Clear Com MS 440 RM 440 SB 440 SB 440 MAIN STATION This station is similar to the MS 440 main station except the speaker is replaced by a 10 x 4 assignment matrix panel The input to this matrix is provided by ten XLR connectors on the rear panel along with an external speaker jack The assignment matrix panel allows you to choose any intercom station or group of stations connected to the ten inputs of the matrix and assign them to any one of the four intercom channels The remote stations can also be assigned to an off position where they are disconnected from the main station A station in the off position can get the attention of the operator by sending a call signal which will be indicated by the call light above the assignment switch Stations can also be assigned to a separate party line position In this position stations can talk to each other but are disconnected from the main station RM 440 REMOTE STATION When purchased in the RM 440 remote configuration this station is powered directly from the intercom line and requires no external AC power allowing it to be placed anywhe
6. dual power distribution to the separate intercom channels If a short should occur on one channel that channel will cease to work The other channels will continue to function with the full capacity of the power supply EASY ACCESS SUB PANEL A removable front panel gives the operator easy access to the station s configuration switches and trim pots Clearly labeled and simple to adjust these controls allow the station to be instantly configured for virtually any com munications application When configuration is complete the front panel reattaches revealing only those controls use ful for normal operation MULTIPLE PROGRAM AUDIO SOURCES The 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 sig nal 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 The program audio is automatically interrupted when the station s Talk button is pushed allowing talent on the set to receive their cues from production personnel 4 Channel Intercom Stations SPECIFICATIONS CONTROL SYSTEM CMOS Digital logic and signal switching OVERALL STATION AUDIO Bandwidth 150 Hz 15 kHz Signal to Noise gt 75 dB Channel Separation
7. gt 50 dB Line Impedance Terminating 200 Q MIC PREAMP Input Level 55 dBv nominal 10 dBv max Impedance 200 Q nominal Frequency Response 150 Hz 15 kHz contoured for max intelligibility Limiter Range 25 dB Gain Adjust 5 dB HEADPHONE AMPLIFIER Load Impedance 50 2 000 Q Output Level gt 20 dBv across 600 Q Distortion lt 0 2 THD at 1 kHz Frequency Response 150 Hz 18 kHz 2 dB SPEAKER AMPLIFIER SB 440 Load Impedance 8 50 Q Output Level 4 watts into 8 Q Distortion lt 0 5 THD at 1 kHz PROGRAM INPUTS Type Line level electronically balanced Nominal Imput Level 10 dBv STUDIO ANNOUNCE Type Transformer balanced output Level 0 dB Relay SPDT Contact Rating 24 Volts DC 1 amp ELECTRET MICROPHONE Optional Connection Proprietary plug in locking connector Pattern Cardioid Length 9 or 18 gooseneck Frequency Response 100 Hz 20 kHz TALK REMOTE CONTROL Two logic inputs POWER SUPPLY MS SB 440 Type Switching with reset circuitry for each channel Output Voltage 30 VDC regulated Output Current 2 0 A max 1 75 A max on any channel with electronic current limiter circuit breaker protected Hum and Noise lt 80 dBv SYSTEM CAPACITY 60 beltpacks or 20 speaker stations AC POWER REQUIREMENTS MS SB 440 90 240 VAC 50 60 Hz DIMENSIONS 3 5 Hx 17 W x 6 75 D 89 x 432 x 171 mm 19 W with included rack ears Depth does not include rear panel conne
8. nel 15 VOLUME CONTROL Adjusts the listening level for both speaker and headset 26 27 28 29 16 SPEAKER ON OFF SWITCH Selects or deselects the built in speaker 17 LOUDSPEAKER High quality loudspeaker is driven by a four watt pro audio amplifier 18 SHORT INDICATORS These indicators will illuminate when there is a short detect ed on one or more of the intercom lines Power will continue to be supplied to the other intercom channels 19 PANEL MIC GAIN Adjusts the sensitivity of the gooseneck panel mic 20 SIDETONE ADJUST Controls the level of your voice as it is heard in your own headset and speaker 21 PROGRAM INTERRUPT SELECT IFB Selects which intercom chan nels that the program inter rupt will operate on The audio program source will be interrupted when the TALK button is pushed 22 AUTO CALL SELECT Sends a call signal automati cally when the TALK button is depressed 21 AND 22 ARE BOTH ON Allows program interrupt IFB from any RM 440 station in the system 23 AUTO TALK LISTEN SELECT Allows the TALK and LISTEN circuit to be automatically acti vated when the TALK button is depressed 24 LATCH DISABLE SELECT TALK button is momentary function only 25 PROGRAM LEVEL Adjusts the level of the Audio Program feed to the station speaker 26 PROGRAM SELECT Determines which intercom channels the audio program feed will be sent to 31 27 LISTEN LEVEL CONTROL
9. re regardless of available electrical mains The RM 440 has all of the same functions as the MS 440 except that it has no power supply circuit breaker or linking function BLOCK DIAGRAM Intercom Inputs 1 gt 10 A A A A A _ A A anast 11919 9191919 1919 o Channel A roe le os Q O gt Channel B i Channel C sd e b 4 o S 4 od Ml Channel D f h gt vee ves rom von gt Party Line eat Matrix ee ee see SB 440 LI Link Program Pa Wel Volume ABC OD 1 a Q r pS 2eR2 m wa Speaker Null Adi On Off Speaker SIH BE ELT t Program a h hi a 7 Iput all buttons Se Volume Headset Pgm Pgm AANA Listen on Select Trim Talk Buttons all Lights rim g lights a D Announce Mic Select Output Headset Power Short Indicators Mic Gain Trim i q C 6 k 30 V ne 2 oosenec nE Announce Announce Mic E Relay Electronic Circuit Protection CONNECTORS Headset 4 pin male XLR Intercom Lines MS 440 Eight 3 pin male XLR SB 440 Fourteen 3 pin male XLR RM 440 Four 3 pin male XLR Four 3 pin female XLR Program Input 3 pin female XLR Announce Output 3 pin male XLR External IFB 1 4 phono jack Aux 15 pin DB connector External Speaker 1 4 phono jack 0 dBv is referenced to 0 775 volts rms All specifications are subject to change without notice ip Clear Com eee Intercom Systems
10. tercom channels e Announce relay contacts e Footswitch input that pro vides momentary activation of the MIC SUPERIOR CONTOURED AUDIO Compatible with all Clear Com party line intercoms the MS 440 series accepts a wide range of dynamic headsets with a choice of headset connectors Optional plug in noise cancelling gooseneck microphones are available in 9 and 18 lengths An adjustable mic gain control and sophis ticated proximity compensation circuitry keep voice levels constant and adjust frequency response over a wide range of mouth to microphone distances A variable speaker dipping circuit provides additional acoustic muting to help elimi nate feedback The station contains a sidetone control that allows the operator to vary the level of his her own voice as heard in their headset REDUNDANT FAILSAFE POWER SUPPLY The 2 amp universal switching power supply is a 30 volt regulated supply with multiple short circuit protection This smart supply can sense the difference between a long term short circuit and an instantaneous overload which means the intercom will continue to operate even when a station is plugged in momentarily exceeding the capacity of the power supply If a shutdown does occur from a shorted intercom cable the power supply will recover under full load when the short is removed It is not necessary to unplug the stations to bring the power supply back up The power supply provides indivi

MS440 Data Sheet/99 - Murray Tregonning & Associates

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MS440 Data Sheet/99 - Murray Tregonning &amp; Associates

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MS440 Data Sheet/99 - Murray Tregonning & Associates