Clear-Com MS-222 Page 2 Instruction Manual Download | Manualshive

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Summary of Contents for MS-222

Page 1: ...MS 222 2 Channel Main Station INSTRUCTION MANUAL 1ll Clear Corn EIF Intercom Systems 945 Camelia St Berkeley California 94710 510 527 6666 Clear Com 810142 9 25 91 REV A...

Page 2: ...er to both Channel A and Channel B XLR receptacles This will reset microphone staus to the off condition on all 500 series Beh Packs connected to that station Use of more than one power source is NOT...

Page 3: ...with respect to Clear Com products It is the responsibility of the user to determine before purchase that this product issuitable for the user s intended purpose Any and all implied warranties includi...

Page 4: ...n completion of repairs equipment will be returned collect via United Parcel Service or other specified shipper NOTICE ABOUT SPECIFICATIONS Performance specifications included in this manual are desig...

Page 5: ...the line is not increased by an unused yet on line station Low impedance mic input lines 200 Ohms and specially designed circuitry make Clear Com channels virtually immune to RFI and dimmer noise Cle...

Page 6: ...MS 222 2 Channel Main Station 0 0 0 0 0 0O OO OO0 2 Ogg zj r C9 901 3 IL rlg CE1 IL3 X F 1 Z8 g 1 i 0 0000 0w 0 0 Ii 00000 00 0 0 cmS CY 0000 00 04 O N dZ 54 IE0 I tII Oi Os ON ot 34 I 9 _ _ _ _ _ 0i...

Page 7: ...sly without tying the two channels together These volume controls are always active regardless of Talk channel selection on the station The speaker may be turned on and offwith a separate front panel...

Page 8: ...together for a combined intercom system consisting of both channels Remote Mi K ll Funtion The MS 222 provides the ability to turn off any open mics on Series 500 belt pack remote stations Momentarily...

Page 9: ...KOhms line Frequency Response 150 Hzto 18 KHz INTERCOM LINE DRIVE RECEIVE CIRCUITS Impedance Output Load 10 KOhms 200Hz 10 KHz Level Line 200 ohm load 9 dBvt nominal 5dBv max before clip Sidetone Null...

Page 10: ...n that channel The hybrid null circuit depends on a known impedance on the intercom line to accomplish this Variations inimpedance on the line upset the null Clear Com main and some remote stations pr...

Page 11: ...number of REMOTE STATIONS that can be operated in a system The MS 222 CS 222 and the PS 22 will provide 1A of current By simply connecting a PS 22 or another MS 222 in parallel with an existing MS 22...

Page 12: ...ON CABLE Typical cable for portable system interconnections is flexible two conductor shielded microphone cable For runs less than 500 feet a cable made of 24 gauge wire is acceptable For runs longer...

Page 13: ...uses are identical in value regardless of the AC voltage applied By turning the block over when replacing it in the receptacle will convert the input voltage range Thevo tage rangn that iua rignI side...

Page 14: ...Normally Open Contact Center C Wiper Right most N C Normally Closed Contact 8 Program Input Connector The Program input is a XLR 3F It is an electronically balanced differential input Winng is as foll...

Page 15: ...of the hybrid null circuitry for excessive intercom cable lengths JP 1 is for channel A and JP 2 is for channel B The S position of the jumpers is for short lines 200 500 feet The L position is for li...

Page 16: ...program can be sent to either intercom line The program pre amp s gain is switch selectable on the rear panel for either mic level 65 dBv nominal input signal or line level 15 dBv nominal The input i...

Page 17: ...L MS 222 SYSTEMS KS AI0I 8 KB IIIARS K S 5OB CC 753 A RSS C75 Sa C s RS Sol CC 75D RS SDI c 753 0 zo S502 cc uoe _____ ____ ____ ____ ____ __ 111Ai K111A 111 111 KD 1IIA KB liA KD I1IA HS 6 RS 502 2 B...

Page 18: ...res access to the front panel controls For intercom operation set the Listen Level controls for each channel to desired level and press the Talk switches when talking The rest of this section is a det...

Page 19: ...Call button Pressing the Call button at any time will send a Call signal on that channel regardless of the activation of the Talk circuit for that channel The Talk button for that channel will illumi...

Page 20: ...conditions In the OFF position the program is not fed to the channel In the INT position the program is fed except when a Talk is activated to the channel This Program Interrupt or NIFW function can b...

Page 21: ...of the program signal heard directly inthe headphone or speaker This control only affects what is heard in the headphone or speaker and does not affect Program feed to the intercom lines 14 Stage Ann...

Page 22: ...N led pulsing on periodically CAUSE Shorted or mis wired intercom cable REMEDY Remove cables one at a time from Main Station until faulty line is located Check for shorts between pins 1 and 2 When rem...

Page 23: ...F A HEADSET AND GROUND CAUSE inductive pick up by headset mic check by switching mic on and off REMEDY Move mic away from hum field Symptom 5 System feedback CAUSE Acoustical REMEDY Volume too high at...

Page 24: ...0164 Microphone Panel Mount Assembly 1 480012 OP AMR LM384 Power 1 480175 OP AMP LM833A Dual Low Noise 1 480070 OP AMP NE5532 Dual Low Noise 4 480021 OP AMP NE5534A Low Noise 1 470019 POT 50K Trim Ver...

Page 25: ...N 0 i m0 I L I I L l i I 4 m I fl a I 2 2 1 I a a IR i I 0 H 1 4II 2 I W C 2 II g 2 ID L Oa n J U o I tl I05...

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