0 - Clear-Com
Contents
1. continued TROUBLESHOOTING S tom Cause Remed System Feedback Acoustical a Check sidetone leveis b Check termination c Volume too high at one station d Two or more speaker stations have mics on simultaneously speak one at a time per channel Power Supply s 10 ohm resistor is opened when the system ground comes in contact with something hot with re spect to the Main Station Earth Ground Should this Occur we recommend you carefully check the system ground and AC distribution in the area NOTE THIS IS A POTENTIALLY DANGEROUS SITUATION IF IT OCCURS A SHOCK HAZARD MAY OCCUR BETWEEN METAL BOOM OF HEADSET AND GROUND HILL OF 5 ASSEMBI Y 710144 ASY DLC 170 nObULE PAGE F N REF DESIG C22 C74 52 Che t l C2o C65 655 cis C29 C13 C34 657 6 C23 55 C36 4 CS7 53 C47 C40 35 08 C72 C67 C73 ce C21 C17 C4 C42 C38 C31 227 C14 c25 cS C2 C12 C24 C28 1 C69 49 C46 C70 50 41 C9 C30 C75 150901 20PF DISC 10 150006 100FF DISC 10 150007 200FF DISC 10 190009 1UF TARTALUM 359 A L 150010 22UF ELECTROLYTIC 16 R L 150011 100UF ELECTROLYTIC 359 150013 15 PISC 10 150014 470FF CERAMIC DISC 10 SOV 150014 0050 DISC 10 150019 2 20 TANTALUM 3592. CL Sat 901 7719128 LNIOd OL LNIOd 39 2 16 AAGWON OS 336 sani OL 2 TACO TI OWWAC 399 SAMIYA SC 42 TY Sia wOISIS2W My 03 180234 BSIMSSHLO 1 S01
3. 419 95S SWOLSISSY NY NGSShOW 3 280 5Q SI 221 N IBL2H 9 SI 191 9 54 v 169660 h 9219 20 001 3199 JAY 37 27 34019 779 NOWWOD LIND NOWWOD MOOI su Gu Suonoeuuoojeluj eujeju uoneis St anD 5 59113 or b E SH Old vOld 1023190 1 1 194 100 5 I E wana el 7 v gt p ue MEM 5 5 h 12 Exe 5 7 5 e 6 fee TW ja Ul 2 We ee 6 ee SG SLOW OS pee We ES EH m WO 1 J AC 2 a OND 159 S uj at 35704 a ee el BLOW was pies wavs S 2 E H YO X H2 jez c2 z 9 YO 2 H2 pz
4. 3 O YH 52 52 A 13313 3 92 1 DIN OND WA UWP ANJI DIN 35009 GH LHI GHJ CHI ZHJ ONS UND 203735 13NNVHJZ u a C T3NNVH2 HOL23NNO2 v S MICE WNIWHSL 5049 29 01140 M A gt ee lt e EE X 19 6 0 0 0 0 0 0 0 J X Cue 5 INC ACORDER NO 20673 ona Q 3 001 owe 9 vw 5 mak ONT 9 aM d E 71 lt 3U ETB e vw 29 vv1 0 5 nono gt way o 7 gt 5 159 5 pmvo e rv NP vw D wo wo 9 o PLUG An E 0 1 L 211 A 1 M fx 13
5. ASSEMBLY 720030 ASY 808 CHASSIS ASSY P N DESCRIPTION 180000 FILTER CHOKE 15MH CARSON 6450 210046 7 PIN MTA HOUSING 8440440 7 210082 SLIP ON CRIMP TERMINAL HOLLINGSWORTHtSOv619SF 210088 CRIMP SPADE HOLLINGSWORTH 820 7 210115 16 PIN MTA HOUSING 1 640440 6 210117 6 FIN MTA HOUSING AMP 6404406 6 210118 8 FIN MTA HOUSING AMP 640440 8 240020 RED BUTTON FOR SWITCH 8121 250168 3 1 2 INCH RACK CHASSIS 5 800 250175 COVER FOR 3 1 2 13 INCH RACK CHASSIS 250208 POWER SUPPLY COVER DLC B CH 250211 BRACKET CRD CAGE DLC 280067 DRESS CONE NUT CEK 7025 640023 9 3501N SLIDE CALABRO PLASTICS 611 0 710044 1 2 REG POWER SUPPLY MODULE REV D 710144 DLC 1 0 MODULE eNO NJ h HILL OF MATERIALS ASSEMBLY 710142 ASY IFR 4 HORULE REV C DESCRIF TION 150025 DISC 5 150030 4 7UF TANTALUM 169 150035 10 MOWOLYTHIC 104ZU SOV 150071 MFD CERAMIC 15 SOV RADIAL Cae 150080 220 MONOLYTHIC 10420 1009 170074 IFB 4 CIRCUIT HOARD 210102 26 PIH DEL ROW 31834 1 1002 210112 HEADER MULTI FIN 18 4100146 CF 1 40 5 10N OHMS R29 R35 R33 R45 R46 R17 R18 R19 R36 R34 R32 R30 R24 R22 1 R42 616 RSS R40 R38 856 13 RIO Ril R12 R7 R RS R3 R60 RS R58 57 R28 R27 R26 R25 R62 R R R39 RI R41 R43 65 R67 661 RAI R2 RI R52 R49 R50 RS
6. one jumper one capacitor 100 pF small blade screwdriver small needle nose pliers solder iron and wick switch from mono to binaural 1 remove top cover from mainframe 2 remove set screw from top of headset connector shell inside front panel remove 4 pin insert from con nector shell by gently pulling its wires towards rear of main frame carefully unsolder all 4 wires from the insert prepare the 6 pin insert by soldering the 100 pF capacitor between the insert s ground tab and Pin 1 see diagram next page continued II Intercom System Set Up continued HEADSETS SPEAKER amp GOOSENECK MIC continued adapting mainframe to stereo headset connector 6 solder the headset connection 7 use pliers to move jumper JP2 wires to the 6 pin insert from the MIX position to the a black amp blue twisted wire SEPARATE position located on pair to Pin 1 black and Pin 1 0 PC Board between the Side 2 blue tone and Intercom Volume b other black wire to Pin 3 trols c spare white yellow wire to Pin 4 spare wire is tucked 8 Slide the 6 pin insert through inside the mainframe in the headset connector shell secure same bundle as the other with set screw wires d orange wire to Pin 5 9 replace top cover of mainframe e jumper between Pins 3 and 6 HEADSET CONNECTOR 6 INSERT WIRING SIDE C TRIMPOTS ON I O INPUT OUIPUT PC BOARD There are three trim
7. 0 7205 4907 aOMLNO2O luum wa EN 5S30123NNO02 annus a 95 JW 26 48 a Bada 3k 98 z a 82 52 92 29 1 0 gi 1 Y6 DE 8OIODVWODXU3INI VQ 8 83 2C 6 J 80 cotnvwOOH31NI 0183 96 Vb aan AB 9 84 HZ 5 81 89 1 Y INJWNOISSV NIF SH WHI 13NNWH2 axes 0 80 31925 LON OO NOWWO DTC NOW wWOD 5197 411 0 GAGES 2 1 e 3503 350 NOMLWY3dO ANOTZ 0 2 Qu5g NO 39v 031109 JASNI S IWVa 1 ASF 90911 3 0022 42 7 7 we 9 05 32 85 AWS OWE ans Wind AOS 1 2 40022 13 80 LS NI 2v 82 14 11 1 thf 7975 Sut 3904 3503 0 AOE 001 140 EE EAS 2 03 803600 L 0 11 TV CAMERAS Te F4 4 INTERFACE INTERCOM STATIONS WITH INTERCOM CONTROL i x PROGRAM INTERRUPT PIC 4 CONTROLLER TALENT with 505 TA
8. 05 03 02 Di 014 143 012 Dii 110 DB 07 1 t J OS ee 480001 1N4001 RECTIFIER 480008 3 TRANSISTOR 480012 LM384 IC POWER AMP 14 PIN DIF 480018 LH741 IC OF AMP 8 FIN DIP 480021 NESS34 OP LOW NOISE 480026 1N957 ZENER 6 4U 4800546 RCASS9NB DUAL OP AMP 8 DIP 480069 2105639 CHANNEL JFET 480070 ICS 5537 DUAL LO NOISE OP AMP 480073 06308 ANALOG SWITCH QUAD 480076 Cn4049b CHOS HEX INVERT BUFFER 480078 UPC78L15H VOLT REG 15V 480079 4174 JFET 510041 SHAF ACTION 8221YAV2 510043 SPDT SHAF ACTION 881211 2 510046 5 10X10 MATRIX AMP 436270 1 gt 1 BILL OF MATERIALS ASSEMBLY 710137 ASY DLC 4 CH MODULE REV A P N DESCRIPTION REF DESIG 150011 100UF ELECTROLYTIC 35 C82 1 150016 0050 NISC 10 620 C19 C18 150019 2 2UF TANTALUM 359 C24 C23 C22 C21 150027 10UF ELECTROLYTIC 16U R L C52 C50 C48 C46 150031 O33UF DISC 300 10 C78 C77 C79 0 150034 22UF MONGLYTHIC SOV He ue Ci4 C13 5 8 150035 MONOLYTHIC 10420 599 C C CS Ca C1 C32 C30 C28 C26 C31 C29 C27 625 C12 C10 C9 C41 64 C 2 cs 657 CSS 653 C51 C33 C34 C36 C47 C49 CS6 C54 C58 C60 670 C72 C74 C74 C73 C38 C40 C37 C4
9. gt 55 dB adjustable from gt 25 dB null to full on CHANNEL SEPARATION SIGNAL TO NOISE SIDETONE OPERATING CONDITIONS Channel Monitoring Programmable channels with illumi nated locking monitor switches Sending Call Signal Follows position of monitor switches Call Light Sensitivity 4 WC Signalling Voltage 11 WC Capacity 5 808 Will support up to 100 remote headset stations or 20 remote speaker stations System Impedance 200 ohms or 15k ohms bridging switchable System Level 15 dB nominal clipping listen 0 dB before CONNECTIONS Headset Inputs 1 XLR male 4 pin 9 XLR male 3 pin 1 30 pin male i XLR female 3 pin 1 4 jack 1 4 jack 1 4 jack Line Outputs Program Input Stage Announce Speaker Mute External Speaker AC POWER REQUIREMENTS 105 130 VAC 48 62 Hz 80 watts maximum May be modified for 210 to 260 VAC D IMENSIONS 19 x 3 5 x 9 AMBIENT TEMPERATURE TOLERANCE 0 50 degrees C 32 12 degrees F I C THE CLEAR COM CONCEPT TECHNICAL OVERVIEW The DLC Series is a closed circuit intercom system that provides high ly intelligible two way communica tions in all environments A basic System consists of an 5 808 Main Station connected to a number of Clear Com Remote Stations and or various DLC System ccessories or an interconnected group of IS 808 Intercom Stations System Interconnection All units in the DLC Series MS IS 808 I
10. nels If he decides to do so the program and intercom signals are mixed at the Station and the en suing signal is sent to the Remote Stations on the desired channel s To send the program on any channel E CHANNEL SIDETONE NULL Sidetone control enables the Sta tion operator to vary the level of his her voice as heard in his head set or speaker The CH 4 Module provides a sidetone null trimpot for each channel This light blue trimpot looks like the Program trimpot but is located towards the rear end of the Control F HEADSETS SPEAKERS amp GOOSENECK MIC electret mic on gooseneck extension is permanently attached to the front panel of the DLC Sta tion The length of the extension is adjustable loosen the screws that hold the base to the front panel and you can slide the goose neck n or out The gooseneck mic is controlled by a Mic On Off tog gle switch next to the gooseneck base slide out the appropriate 4 Control Module The contrel to adjust light blue trimpot located close to the front panel see Fig 9 for exact location of all controls on CH 4 Module Turn the trimpot fully clockwise and the associated channel will receive the program signal at maximum le vel Turn the trimpot fully coun ter clockwise and the associated channel will not hear the program Program can not be sent on the dedicated line Note the Program Input XLR connec tor is wired in parallel wit
11. 100 OHMS 410073 RES 2W 5 39 OHMS 410074 RES 1 2W SX 1 5K OHMS 410075 RES CF 1 2W SZ 1 3K OHMS 410076 RES 24 SX 5 OHMS 480001 010 1N4001 RECTIFIER DIODE 480005 DIO 1N5401 RECTIFIER DIODE 100 19 480048 SCR TECCOR S2010LS2 10 SENSITIVE 480049 TRA MOTO MJE 4350 TRANSISTOR TO218 C PKG 480050 TRA MPS ASS TRANSISTOR 480051 TRA TRANSISTOR 70220 PRG 480052 TRA 5 405 TRANSISTOR 480053 DIO 1 52458 ZENER 15V SX SWATTS 480054 1N5257B ZENER 33V 5 SWATTS 520017 FUS FUSE CLIP KEYSTONE 3530 520021 FUS ZAG 1 AMP SLOW BLOW 31301 0 640016 STR CABLE TIE TYTON T40R cs R14 R11 RS R10 R 57 R3 RA Rl R2 R8 R9 R12 R13 ps 01 SCR1 01 Q2 03 04 n F1 tJ w t gt w w I lt t ASSEMBLY IFE FGI 4 CHANNEL TALENT IFE MODULE P N DESCRIPTION 250183 DLC SERIES 4 CHAN BOARD TO PLATE BRACKET 250194 4 FRONT PANEL 280004 HDS 4 40 CAPTIVE PANEL SCREW BLK 369 55 26 280005 HDS CAPT SCRW RETAINER BLK RAF 1000 125 SS 26 710142 ASY IFB 4 MODULE REV C ASSEMBLY CH 4 FGI 4 CHANNEL IHSERT P N DESCRIPTION 250212 FRONT PLATE CH 4 LC 280004 4 40 CAPTIVE SCREU ELK 369 55 26 280005 SCRW RETAINER BLK RAF 1000 125 SS 26 710137 DLC 4 CH MODULE 735005 CH 4
12. 2 SELF TAPFING SCREW FOR CONNECTOR 280009 5 8 SELF TAFPING SCREU FOR CONNECTOR SHELL 280010 3 8 SELF 1 6 SCREW FOR STRAIN RELIEF 640025 BUSHING FOR TUCHEL 640026 STRAIN RELIEF BRACKET FOR TUCHEL 810006 TUCHEL WIRING INSTRUCTIONS DLC ICU R C ASSEMBLY 29 ASY 5 808 15 808 FRONT ASSY P N DESCRIPTION QTY 150048 100PF 1 204 RF CAP 210013 AAA SWC CONNECTOR 210089 TER CRIMP LUG SLIPONS 501107 240007 HAN PANEL 2 INCH SHITH 1638 240015 KNB ROGAHSRE 67 0 DC ML 125 1 2 W 1 8 SHAFT 240020 KNE RED BUTTON FOR C amp K SWITCH 0121 240021 KNB BLACK BUTTON FOR SWITCH 8121 250157 MET ELECTRET MIC COLLAR 250166 TEA 280068 250202 MET BRACKET SIDES SUERPAHEL DLC 250203 MET SURPLATE SPK MTG DLC 250204 MET SPEAKER PANEL INSERT 250207 MET SPK SCREEN DLC 250210 MET FRONT PANEL DLC 16 CH 280067 HDS DRESS CONE NUT 7025 390007 LED PANEL MOUNTED RED LED 10145100 1 500089 AAA SPK ROUND SFEAKER CTS 3A2479 500090 MIC PRIMO MICROPHONE W GSHk EH4544 STANDARD 510002 SWT POWER ILLUM ROCKER 403SCBR2 510006 SUT MINI TOG W LOND LEADS CEK8 2101P3YW 510044 SWT SP3T C amp K 7107P3YU 520018 FUS PLASTIC PLATE FOR CB ALLIED 851 8200 520019 FUS CIRCUIT BREAKER LITTELFUSE 81502 5
13. Hz When the power switch is turned on it illuminates indicating the Station is ready to run The MS IS mainframe provides a red LED that illuminates when the Station s circuit breaker pops indicating a short circuit or phase reversal in the cabling If the LED lights up inspect the interconnect cable remove the short circuit and press the Circuit Breaker re set to re establish the system SPEAKER ON OFF This toggle switch controls the MS IS mainframe s built in speaker CALL Pressing Call activates the Visual Signal Circuitry in the system allowing the Station operator to attract the attention of other operators The Call button will signal the operators on channels that the calling Station operator has chosen with CH 4 locking Listen buttons If the Listen buttons for Channels D and E are on pres sing Call will signal only those Stations on Channels D and E If all Listen buttons are enabled all connected Stations will receive the Call signal When a Remote Station sends a Call signal the MS IS Station s Listen button for that Remote Station s channel will illuminate brightly whether it s on or off III MS IS 808 Operating Controls continued S A STAGE ANNOUNCE Stage Announce allows the MS IS Station operator to add his words spoken into the mic to the intercom system to an external output When the operator presses the S A button the mic preamp output is added to the rear panel Stage Announce connec
14. and 2 Check remote unit M lt lt 9 M M e Hum or buzz in system Inductive pick up caused by close proximity of Main or Remote Station to power lines or transformers Due to ground loop caused by improper grounding of system 10 ohm chassis ground resistor R14 in power supply is open inductive pick up by headset mic check by switching mic on and off Relocate offending unit Reverse power cord lift ground see Installation In structions Check resistance between chassis and Pin 1 of connector make sure it s ten ohms If not open power supply and replace resistor Move mic away from hum field or use carbon or electret headset ee 4 GD ch GP YS AED SD Excessive background noise pick up by mic distance from mic to lips is too far volume too high too many mics in entire system Move closer to mic Lower headset speaker volume Turn off all unused mics
15. in the system also at all Main Stations Switchboard Stations or Power Sup plies if part of the system the termination switches should be OFF open position It is important to remember that each channel whether in use or not should be terminated ONCE at some point within the intercom system note that point need not be the same for each channel In DLC Systems using IFB 4 Control Modules the IFB channels are ter minated by the PIC 4 Program Con troller tial amplifier to accept a balanced signal without using a transformer A 25 dB signal will drive the line to full output The input impe dance of the program amplifier is approximately 50k ohms The speaker output always combines the intercom and program signals although the relative levels of each are dependent upon the settings of both volume controls on the front panel Intercom Volume Program Volume The program level heard in the headset is affected only by the Program Volume control However 20 II Intercom System Set Up continued PROGRAM SEND RECEIVE continued the program level heard the speaker is affected by the setting of the Intercom Volume control If you re using a binaural headset with the DLC mainframe the Inter com Volume has no effect whatsoever upon the program level whether in the speaker or the headset The DLC mainframe operator can combine the the program with the intercom on any or all of the chan
16. level balanced and works in conjunction with a speaker mute function provided on the rear panel 7 VISUAL CALL SIGNALLING attracts the attention of other Station operators also used to activate remote control of KB 112 Stations 8 ULTRA STABLE SIDETONE CONTROL suppresses feedback when using a mic and speaker simultaneously 9 MIC LIMITER part of the Station s mic preamplifier the mic limiter pre vents overload and maintains constant signal levels 10 GOOSENECK MIC a noise cancelling electret mic on an field adjustable flex ible extension is permanently attached to the MS IS mainframe 11 EXTERNAL SPEAKER the MS IS Station provides a jack on the rear panel for connecting the Station to an external speaker Special DLC System Features 1 CHANNEL ISO allows the Station operator to hold a private conversation with any channel s without having to turn off the talk monitor switches for all other channels 2 OPTIONAL PROGRAM INTERRUPT IFB PACKAGE includes the IFB 4 Control Module the PIC 4 Program Interrupt Controller and one or more Talent Receivers for a fully integrated IFB System with four channels of intercom and four channels of IFB Other combinations are possible The DLC System is available with up to eight intercom channnels and eight IFB channels 3 CAMERA INTERFACE the IF4 4 Four Wire Interface allows TV camerapeople op erating three wire or four wire systems to communicate with Clear Com Sy
17. lt 210002 SWC D3F CONNECTOR 210055 JACK FOR SPEAKER EXT W SWITCH 4 0 210082 SLIF ON CRIMF TERMINAL HOLL INGSWORTHE SO7619SF 210095 30 FIN DIN FLUG 210098 30 FIN DIN BASE 250215 15 908 REAR PANEL 510002 POWER ILLUM ROCKER ARCOL 403SCBR2 560016 XFORMER POWER 1 AMP 5 6969 610000 POWER CORT SET 3 COND BELDEN 17237 640000 STRAIN RELIEF FOR POWER CORD HEYCO 5 5 4 4 gt NOTICE While Clear Com makes every attempt ta maintain the accuracy of the information contained in its product manuals the information is subject to change without notice 139 uns nos 108 09 0 04 025 LEL ON 1125 531435 210 31000 6 mamme r ASSN e a OPUS 727 72 7 s 008 MS ag t Shy 241 20727 H 30 HVH J 95 8 1615 oza A Bow 91 4 180102 I HOI 022 34022 M 07 2d m A 8 11007 299 BH 153235 0804 92 17118 K 9024 215 E 3012 882 4350 530 333 1577 9 68 MA 580151538 5 4S 53015539 Tw hi LYE ae BG SBOLSISTY Ty TO 7MAIXIONOW AOS 5442 3717
18. provides power on and short circuit indication and is circuit breaker protected BUILT IN ASSIGNMENT MATRIX a 9 x 10 slide switch matrix inside the MS IS Station assigns each set of channel controls A through H to the inputs connected to the rear panel The Matrix also assigns your dedicated line to the desired destination or lets you park it in an OFF disabled position VERSATILE MONITORING SYSTEM With the CH 4 Control Module the DLC Station operator can access any channel with one of the two switches assigned to it The Listen control is a locking pushbutton that illuminates dimly when activated and the Talk control is a 3 position toggle switch with lock on momentary on and off settings HANDS FREE DEDICATED LINE allows the MS IS operator to maintain permanent point to point communications with another Station operator A point to point system can be configured to contain up to nine stations PROGRAM MONITORING the MS IS Station has a balanced auxiliary input for monitoring an external program the operator hears the program in the spea ker or in a headset and may send the program to any channels so Remote Stations can monitor it also A front panel Program volume control adjusts the level and the CH 4 Control Module contains trimpots for adjusting program level on each channel STAGE ANNOUNCE FUNCTION the MS IS Station operator can add the Station s amplified mic output to an external connector The output is line
19. the intercom line This voltage is applied when the front panel call button is de pressed which turns on transistor Q12 see channel D in schematic which applies approximately 15 VDC to the intercom line of that nel A receiving station sees the 15V on the intercom line the vol tage is sensed by amplifier ICl4 which turns on an NPN transistor This in turn causes the call lamp to shine brightly I4 Program An external program is fed to the program connector 3 pin XLR male on the rear panel the input is balanced one 20 to 0 dBm From there the signal is ampli fied passes the program master I A MS 808 CIRCUIT FLOW DESCRIPTION continued gain control P6 and then to another amplifier IC5 section A on the 1 0 PCB schematic which feeds the program buss and the program volume control on the sta tion s front panel The signal at that point gets mixed into the output of the summing amplifier where it is combined with the tercom signal From there the signal can go directly to the head set speaker power amp OR it can go into a separate program amplifier IC11B and then feed directly to one side of a split phone headset The feed to the program buss from 5 goes to the 4 channel boards CH 4 Control Modules and program is sent with intercom to any or ail of the channels depending on the setting s of the program level trimpot s Stage Announce When the Stage Announ
20. to vary the dip amount from full on to full off 8 CHANNEL IFB SYSTEM If your system includes two PIC 4 Controllers one is considered a Primary unit and the other is considered secondary The secondary PIC 4 connects to the DLC System via ribbon cable input to the 25 pin D connector on the rear panel labelled extender is modified by Clear Com with the addition of four jumpers at JPl JP4 on PCB that permit the system extension To send program and cues to eight talent people two IFB 4 Control Modules are required these mod ules however need not be in the same DLC MS IS mainframe One Station operator the director for instance can have access to Talent 1 4 via one IFB 4 Module while another operator such as the as sistant director has access to Talent 5 8 with another IFB 4 Mod ule IV DLC System with IFB continued D IFB SYSTEM SPECIFICATIONS Frequency Response 100 15k Hz 1 dB Distortion lt 1 THD lkHz Signal to Noise Ratio better than 55 dB IFB Line Level 10 dB PIC 4 Program Imputs two selectable to each talent 1 for interrupt 1 for non interrupt Program Input Level 20 to 15 dBm 50k ohms bridging balanced Program Output on IFB Line 10 dBm Program Dip Range 0 to 40 dB Power Required 27 ma quiescent 28VDC supplied by Clear Com line Dimensions 19 W x 1 75 H x 6 D Connectors Program Input 2 3 pin XLR female Intercom Input 4 3 pin XLR female
21. 0 OHMS 410010 1 46 1K 5 410013 1 4W 4 7K 5 410016 1 4W 10K OHHS 410038 174W B2 OHMS 410071 1 4W 100 OHMS 410073 2W SX OHMS 410074 172W 5X 158 OHHS 410075 1 2W 5 1 3K OHMS 410076 24 SX 5 OHMS 480001 1N4001 RECTIFIER DIODE 480005 145401 RECTIFIER DIODE 100FIV 480048 TECCOR amp S2010L82 104 SENSITIVE 480049 MOTO MJE 4350 TRANSISTOR TO21BAC FKG 480050 MPS ASS TRANSISTOR 480051 TRANSISTOR T0220 PKG 480052 MPS A05 TRANSISTOR 480053 1N5245B ZENER 15V 5X SUATTS 480054 1152578 ZENER 33V SX SWATTS 520017 FUSE CLIP KEYSTONE 3530 520021 1 AMP SLOW BLOW 31301 0 640016 CABLE TIE TYTON amp TAOR C2 CS cs NEN BBR BREN N ro Oe e m BILL OF MATERIALS ASSEMBLY 710044 ASY 1 2 REG POWER SUPPLY MODULE DESCRIPTION REF DESIG 140062 HTS HEATSINK 1 2 REG PS AAUII S630D 150022 CAE 2200UF ELECTROLYTIC 509 A L 150029 CAD O1UF DISC 1 4NVDC 150UAC UL APFROVED 150036 CAE 2200UF ELECTROLYTIC 559 L 150043 A7UF HONOLYTHIC 509 170037 PCB 1 2 REG POWER SUPPLY CIRCUIT BOARD 210979 TUR DIODE TURRET CAHBIONS 140 1578 02 01 00 210080 TER P C QUICK CONNECT NEYSTONE 1285 240010 NNR RUBBER FOOT 50 INCH 50 HOUSERS 517 8018 410002 RES CF 1 4W 5 10 OHMS 410009 RES CF 1 4W 5 270 05 410010 RES 1 44 5 1K OHHS 410013 RES 1 44 5 4 7 OHHS 410016 RES 1 40 5 10N OHMS 410038 RES 1 44 5 B2 OHMS 410071 RES 1 4W 5
22. 027 MINI DIP SWITCH 06 7 64 510043 SPDT SNAP ACTION 88121 2 BRILL OF MATERIALS ASSEMBLY 720031 ASY 15 808 CHASSIS ASSY P N DESCRIPTION 210046 7 FIN MTA HOUSING 640440 7 210082 TER SLIP ON TERMINAL H LLINGSWORTH SO9519GSF 210088 TER HOLLINGSWORTH 55290285 210115 AMP 16 FIN MTA HOUSING 1 640440 6 210117 AMP 6 FIN MTA HOUSING AMP 640440 6 210118 FIN MTA HOUSING AMF 640440 8 240020 KNB RED BUTTON FOR SWITCH 8121 250168 MET 3 1 2 INCH RACK CHASSIS MS 800 250175 HET COUER FOR 3 1 2X13 INCH RACN CHASSIS 250208 MET POWER SUPFLY COVER CH 250211 BRACKET CRD CAGE DLC 280067 HDS DRESS CONE NUT CSK 7025 640023 HBS 9 350IN FC SLIDE CALABRO FLASTICS L1 6200 710044 ASY 1 2 REG POWER SUPPLY MODULE REV 710144 ASY DLC 1 0 MODULE REV 5 1213 Me WiLL OF MATERIALS AuSE MBLY 710044 1 2 REG SUFFLY MODULE FAN DESCRIFTION REF 16516 140002 HEATSINK 1 2 KEG FS A VIIMS 3OD 1950022 2200UF ELECTROLY1JC 509 A L 150029 O1UF DISC 1 4 150V C UL AFFROVED 150036 2200UF ELECTROLYTIC 359 A L 150043 47UF MONOLYTHIC 04 170037 1 2 REG POWER SUPPLY REV amp CIRCUIT BOARU 210079 0100 TURRET 40 1528 02 01 00 210080 QUICK CONNECT TAB NEYSTONE 1285 240010 RUBBER FOOT 50 INCH SQ 10 6 517 68 410002 CF 1 40 5 10 OHMS 410009 1 44 5 27
23. 04 Viv 20 EB 992 TO e NOW WOW LO NON NON 9 0 1 Q 0 de OI O1 mo wo 7 BTA dea EA aed aita 2 82798 aay 9 0 asin NOW WON 0 0 Ow wow ae vani o 0 3 2 3 yous NOW wJ00 0 159 Ad 51 jg eoo itv 301979933 D way y BY YOASNVULL Os e 9 9I os aca 21 Tw228878 Siig 7772 298 ww o NOA NOW OD 0 gt MON WOW 0 0 WAI OC 0 C if eI jel NOW 199 D m Zy waj woe 0 2 m gt 05 ata 12 05 aed L 5 ER 5 22 Sx ip 3 1090w 331000wW g m 0 07 ve TOYLNOD NOIH3INI 52 wO2waiN 22 bOfd Solid EDIT al NCES s E z 2 baal T d 515 15 a tk 8 219 21 1 BENI 0 H ele umm 5 s SS oH 31 3
24. 1 C6 C71 5 150044 4 7 UF TANTALUM 359 R L 150061 680 1506 10 SOV 150073 1 CERAMIC MONO 15 SOV RADIAL 150074 220 PF MONDLYTHIE 10 SOV 50077 15 PF DIPPED MICA CERAMIC 10 509 150078 047 MONOLYTHIC 10 50 web 170069 DLC 4 CH CIRCUIT BOARD 210000 14 10 DIP SOCKET 210075 16 PIN SOCKET 210101 8 PIN SOCKET 210102 26 PIN DBL ROW 31834 1 1002 210112 HEADER MULTI PIN HEADER MIN 18 PIN 410007 CF 174W 5 220 OHMS 410011 CF 5 2 2K OHMS 410013 CF 1 4M 5 4 7K OHMS H9 8126 R128 R124 R122 R134 R135 R134 R133 R185 6188 6187 8186 8140 R139 R138 R137 R132 R131 R130 8129 R35 R33 R29 410016 CF 1 4U SX 10N OHMS R24 R23 R22 R21 R20 R19 R18 R17 RES RSS 654 R53 410017 CF 174W 7 OHMS R59 R58 R57 652 RSI R50 410018 CF 1 4M 5 OK OHMS R125 R127 R81 R83 685 7 R25 R26 R27 R28 RIOS R106 R107 R108 RI21 3 410021 EF 1 4W 5x OHMS R120 6118 R116 Ri14 78 R76 R74 R64 853 62 R i R48 R47 846 R45 410022 174W 5 OHMS R197 R200 R199 R198 410023 1 44 5 OHMS R180 R178 R176 410024 174080 5 OHMS R205 R206 R208 R207 R101 R102 R103 R104 R173 R204 R203 R202 R177 R175 R148 7 8112 R111 R110 R109 R95 R93 R44 R41 R79 R77 R75 R73 RAO R39 R38 R37 410025 CF 1 40 68K OHMS R160 8159 6158 R157 410027 CF 1 4U 180K OHMS R83 RBS R68 R66 RES RBG R86 R82 410028 1 44 220K OHM
25. 150021 220UF ELECTROLYTIC 359 F L 150026 39 DISE 5 150027 10UF ELECTROLYTIC 16 R L 150034 22UF MOHOLYTHIC Sov 150035 1UF MOHOLYTHIC 10420 SOV 150041 47PF DISC 10 SOV 150043 47UF HOHOLYTHIC Sov 150044 4 7 UF TANTALUM 359 R L 150061 DISC 10 509 150065 220 ELECTROLYTIC SOV 150072 20 259 NP 150073 1 CERAMIC 15 509 RADIAL 150076 01 0 16 10 509 150078 047 MONOLYTHIC 10 509 150080 2206 HOHOLYTHIC 10420 1009 150081 47 UF 35 ELECTROLYTIC CAF SMALL 150082 022 UF MONO CKOS 10 SOV 150084 002 UF DISC 10 509 150085 JUF MONO CKOS 100 10 170075 DLC 1 0 CIRCUIT BOARD 210075 16 FIN DEP SOCKET 210101 8 FIN DIF SOCKET 210102 26 FIH BRL ROW 3M 3491 1002 210109 SINGLE FIN SOCKET FOR DLC OPTION JUHPS 210112 HEADER PIN HEADER MIN 18 250216 DLC 1 0 BOARD MATRIX SWT LABEL 410001 1 44 5 3 9 5 410004 17 48 5 22 OHMS 410007 1740 5X 220 OHMS 410010 1 44 5 1K OHMS 410011 1 7 48 5X 2 20 OHMS 410013 1 4W 5 4 7K OHMS J103 106 4105 0104 R12 R111 R110 R47 Ri R93 R39 R17 R32 R38 Ri0 R50 R49 R48 R46 R44 R112 R109 R86 R96 R40 RB7 RIS R104 R103 R102 R114 R11 R R68 R R89 R76 8100 RSP RIO R18 R84 R83 RS R107 R64 R35 579 R R34 R113 61 R R74 R72 R23 R3 R94 R92 R88 R81 R16 R75 658
26. AUDIO 6 A7 INTERCOM AUDIO 7 A8 INTERCOM AUDIO 8 A9 AO GROUND B1 VOLTS B2 VOLTS 30 PIN MALE B4 IFB 3A B5 IFB 4A B6 IFB 1B B7 IFB 2B B8 IFB 3B B9 PRIORITY BO GROUND C1 INTERCOM AUDIO 9 C2 IFB 4B C3 PROGRAM 1 C4 PROGRAM 1 C5 PROGRAM2 C6 PROGRAM 2 C7 N C C8 N C C9 N C CO GROUND TUCHEL CONNECTOR AS SEEN FROM INSIDE CHASSIS Wiring side II Intercom System Set Up continued ASSIGNING CHANNEL The MS IS Station with two CH 4 Control Modules provides two way communicating abilities on eight intercom channels and a dedicated line The Modules let you pre set the channel functions and control channel monttoring The dedicated line has no external controls for it it remains perma nently on allowing the DLC Sta tion operator to main tain constant point to po nt communications with another Station operator When you interconnect DLC Stations the lines in the cable are not hard wire assigned to the specific channels A through H which are controlled via the front panel Assigning each set of channel con trols on the CH 4 module to the audio lines the cable and the Stations connected to the lines is done via the Station s Assignment Matrix The Matrix is located on the Input Output Circuit Board inside the DLC Station Remove the top cover of the Station and you ll see the labelled Assignment Matrix See Figure 8 Input Output Board for exac
27. DLC SERIES MS IS 808 INSTRUCTION and SERVICE MANUAL Clear Com 1111 17th Street San Francisco California 94107 415 861 6666 CLEAR COM 810003 808 9 84 REV D CLEAR COM DOCUMENTATION ADDENDUM C 15 808 6 PIN CONNECTORS DATE JULY 1 1987 x 5 808 6 IFB ISO ACCESSORY CONNECTORS 1 All MS 808 Main Stations built after July 1 1987 with serial numbers higher than 330407 are equipped with three 6 pin male XL type connectors that are not mentioned in the manual These connectors are located on the left hand side of the rear panel between the Program Input connector and the Channel 1 4 Intercom Line connectors They are designated from left to right 703 7947 5 JS respectively These connectors have standard functions but are also occasionally used for special purpose and custom modification connections The standard functions are J3 IFB l 4 73 accesses the operating module that is connected to 2105 on the 1 0 board 14 IFB 5 8 44 accesses the operating module that is connected to 7106 on the 1 0 board JS 150 75 connects directly to 150 4 ISO Control Module when installed Only a single connector is required regardless of the number of ISO 4 modules For additional detailed information concerning MS 808 IFB and or 150 connection and operation refer to the PIC 4000B or ISO 4000 Operation Manuals Any non standard functions or connections of J3 J4 amp J5 ar
28. E SINGLE m SPLIT PR D OGRAM FEE mu FEED RECEIVERS MAJOR COMPONENTS OF A DLC PRODUCTION INTERCOM SYSTEM WITH 4 INTERCOM CHANNELS AND 4 IFB CHANNELS ALSO AVAILABLE WITH UP TO 8 INTERCOM CHANNELS 8 CHANNELS IV DLC SYSTEM WITH IFB A INTRODUCTION TO THE IFB SYSTEM The Clear Com IFB System is a one way program interrupt system that is fully integrated within the DLC System This flexible IFB System sends of two program channels to talent and permits multiple intercom sta tion operators to interrupt the program and access the talent Split program feeds are possible which allow the talent to monitor a program continuously in one ear and have program interrupted in the other ear A system with one PIC 4 provides four channel outputs to talent however eight channels are possi ble by daisy chaining two Program Controllers PIC 4 together is called the primary PIC 4 while the other is the secondary l PIC 4 Program Controller PIC 4 The DLC System input is only connected to the primary PIC 4 which then connects to the sec ondary unit via a 25 pin D connec tor and ribbon cable When the director a DLC Station operator presses a button on the 4 Module the station s mic activates and disconnects from the talk portion of the intercom System to allow talent cueing The listen portion of the intercom is not affected which permits
29. F4 4 and PIC 4 interconnect with a single cable which carries up to seventeen audio channels eight intercom eight IFB one point to point plus DC power Each intercom station location may be assigned to the point to point au dio channel which is referred to as a dedicated line Most Remote Headset and or Speaker Stations connect to the MS 808 with standard two conductor shielded microphone cable One wire car ries DC power the other wire car ries the audio channel and the shield acts as common ground Only one termination is needed throughout the system and is ac complished at the MS or IS 808 Performance The DLC Series is a distributed amplifier system each intercom station houses its own mic preamp lifier with limiter power ampli fier for the headset or internal external speaker and visual sig nalling circuitry Electrical so lation between the talk and listen circuits is achieved prior to the switch matrix by the individual ampl fters The mic limiter pre vents overload and maintains a steady transmit level from each station The automatic headset detection circuit shuts off the station s mic preamp when the mic or headset is disconnected so an unused on line mic does not add background noise Low impedance mic input lines 200 ohms make the audio channels vir tually immune to RF and dimmer noise Each bridging circuit is terminated with a low impedance to prevent crossta
30. HARNESS FLAT CABLE BILL OF MATERIALS ASSEMBLY 820017 ASY 802 SPARE FARTS PSN DESCRIPTION 240015 AAA KNB ROGAHeRB 67 O DC HL 125 1 2 1 SHAFT 240020 KNE BUTTON FOR CSN SWITCH 8121 390005 LAM LAMP FOR 5125 24V 20d SCHADOU 72524 470020 AAA REV 100K LINEAR FC MTG 5 470034 REV SOK CTS BECNHMAH 550 8 480004 TRA HFS 13 TRANSISTOR 400008 MPFS 63 TRANSISTOR 480044 TRA 2N5021 JFET 400047 TRA 2N4401 NPN TRANSISTOR 480056 ICS RC4559NB DUAL OF AMP DIF 480069 2N5639 CHANNEL JFET 480070 AAA ICS NESS32 MUAL LO NOISE OF AMP 480073 ICS 06308 ANALOG SWITCH QUAL 880074 ICS 040918 QUAL DUAL INPUT NANI GATE 480075 ICS LH358 GND SENSING OF 480076 ICS 5404 8 CMOS HEX INVERT SUFFER 480078 TRA UFC78L15H NEC VOLT REG 159 1 510027 SUT MINI SWITCH GRAYHILL 76SHO4 310028 AAA SUT SHAP ACTIOM C ht812108025RED3 510041 541 SHAP ACTION 8221 2 510045 SWT 38 80 1 9 4 ACTION 812102 510044 SWF 5 3 1 OH OFF DH CEK 7107P3YW 910046 SWE 10X10 MATRIX 43070 1 510050 SWT SCH F N 00 2U EE N 21 01 16 01 k AG 3 03 bee eee ee E rA FOLE t m m ASSEMBLY 820018 ASY TUCHEL CONNECTOR ASSY FEMALE FOR UESCRIFTION QTY 210095 30 PIN DIM RECEFTACLE 210119 CONNECTOR SHELL RIGHT HALF W THROUGH HOLES 210120 CONNECTOR SHELL LEFT HALF W STRAIN RELIEF 280008 1
31. I 04 DS 06 07 013 09 DIO Dit 012 01 480008 MPS 63 TRANSISTOR 05 06 480018 LM741 IC OP AMP DIF 1C1 480047 2N4401 TRANSISTOR 02 Q1 Q4 03 480056 RC4559NB DUAL OF DIP 104 103 104 ICS 480073 06308 ANALOG SWITCH QUAD IC2 510025 SCH 4 FL 17 5 FRV BLK CLR 4U EE 1234 410017 CF 1 4 5 15K OHMS 410018 CF 1 40 5X 22K OHMS 410019 CF 1 40 57 39K 410021 CF 1740 54 47N OHMS t b gt p Qn 410024 4 57 100K OHMS 410026 CF 1 40 5 150K 5 410028 CF 1 4W 5 220k 65 410032 CF 1 4W 5 16K OHMS 410036 CF 1 40 5x 6 8K 5 410041 17 4080 5 1 2K OHMS 410049 1 49 5 5 410055 1 49 5 1 5N OHHS 410082 1720 5 470 OHMS 410086 178W 20 0N 0 5 480000 144148 SIGNAL DIODE ASSEMBLY 720011 ASY 59 800 REAR FANEL ASSY P N DESCRIPTION 210002 AAA SWC D3F CONNECTOR 210003 SWC 03H CONNECTOR 210050 SWC PHONE JACK FOR CARBON MOD SUTCSH112B 210055 SUC JACK FOR SPEAKER EXT U SMITCH amp N112 210082 JER SLIP ON CRIHP TERMINAL HOLLINGSUDRTH SO 619s5F 210095 30 PEN PLUG 210098 TER 30 PIN DIN 250142 MET REAR HS RM 800 960011 TRN FOWER XFORMER CARSON 6832 610000 FOWER SET 3 COND 17237 640000 STR STRAIN RELIEF FOR POWER CORD HEYCO 5 5 4 10 ASSEMBLY 720032 ASY 15 8608 REAR ASSY P N
32. PIC 4 Program Controller connect to each other with 12 shielded cable The cable is input to the 30 pin male connector on the Station s rear panel With each DLC Station we supply two 30 pin female connectors these are attached to each end of the interconnect cable The following pages contain illu strations to help you construct the interconnect cable We recommend you use Belden 9768 or the equiva lent twelve pair individually shielded 22 gauge Cable especially in longer runs should have low DC resistance less than 15 ohms per 1000 feet with large diameter conductors Cable should have low inter conduc tor capacitance less than or equal to 55 pF foot of cable capa citance between conductor and shield The MS 808 provides one 30 connector for output to DLC Series components The IS 808 Station provides two 30 pin connectors one for input and one for output so you can da sy chain the unit with other IS Sta tions See the Daisy Chain diagram in the previous section The PIC 4 Program Controller con tains one 30 pin connector for DLC intercom IFB input Since each M8 808 and 15 808 tains its own power supply there is no limit to the amount of main frames that can be interconnected within a system systems with IFB must contain at least one MS 808 to provide power for the Program Controller and Talent Receivers see Section IV Always route the interconnect
33. R2 0 R27 R21 R45 R20 R25 R26 R53 R22 ROS R37 R24 R73 R29 RSS R92 RSI QD tJ b gt LC m 0 B I gt hh 12 t N OD Ui GI F2 Woe O lt 410016 17 48 5 10K OHMS 410017 1740 5 15K OHMS 410018 1 4 5X 22K OHMS 410020 174W 5 33K OHMS 410021 1 4W 5 47K OHMS oe 5 410022 17 480 5X 27K OHMS 410023 1 44 5 56K OHMS 410024 1 4 5 100K 5 410025 174W 5 6BN OHMS 410026 1740 5 150K 5 410027 7 1 4 5X 180N OHHS 410028 1740 5x 220K OHMS Ones Deo 410030 1 4W 5 470K 015 410031 1740 5 12K OHMS 410032 1 4W 5 18K OHHS 410033 1740 5 330K 5 410036 1 48 5 5 8 OHMS 410038 1 48 SX 82 OHMS 410039 1740 5 47 OHMS 410040 1 4W 5 2 7K OHMS 410041 174W 5 1 2K OHMS 410044 1 46 5 680 OHMS 410046 1 44 5 560 OHMS 410049 1740 5 91K 5 410055 1 4M 5 1 5K OHMS 410058 1 7 40 5x 1 410059 1 44 5 10 410063 1 88 1X 818 6 OHMS 410065 172W 5 22 OHMS 410067 174W 5 1 8 6615 410071 174 5x 100 OHMS 410077 1740 5X 4 7 665 410082 1 2W 5 470 OHMS 410083 7 1740 57 24K OHMS 410084 1 4W SX 43K OHMS 410085 1 8W 1 2 67K OHMS 410086 1 88 1 20 0N OHMS 410095 5X 1 4 WATT 1 2 410097 1 4W SX 240N OHMS 470033 TRIMPOT BECKHAN 91 2 470034 SOK TRIMPOT CTS BECKMAH 91 5 470040 100K FC MTG CLAROSTAT 6 480000 1N4148 SIGNAL DIODE R33 R71 RPS F3
34. S R189 Ri96 195 6194 13 R191 R190 R12 RB R R72 R71 R70 R Ri6 R15 R14 RIZ R11 R R RS R92 R91 RIO R89 R100 R98 R96 R94 R183 R182 RIB 1 R147 6165 R144 R143 8156 R155 R154 6193 R3 R144 6163 R162 161 R166 R172 R170 R168 R3 amp R34 R32 830 R152 RiSi R150 R149 P2 P5 P7 240 139 038 037 136 034 0353 032 051 050 028 D24 025 024 1021 020 019 8 015 1013 2 pio oF D 15 02 02 01 95 012 011 QIO 09 IC8 166 164 IC2 IC 165 103 1612 1011 1610 1616 1015 1014 1013 85678 512 511 510 59 4 53 52 51 410033 CF 1 49 5X 330K OHMS 410036 CF 1 4W 5 4 8K OHMS 410039 CF 174W 5 47 OHMS 410041 CF 174W 5 1 2K OHMS 410055 CF 1 4W 5 1 5K 015 410059 CF 1 4W 5 10 MEGAOHM gt gt gt 410063 CF 1 849 1 6 81N OHMS 410082 CF 1 2W SX 470 OHMS 410084 CF 1 4W 5 43K OHMS 410085 CF 1 BW 1X 2 67K OHMS 410086 CF 20 0K OHMS 410093 CF 5X 1 4 WATT 3 9 MEG 470034 SON 5 6916650 480000 1N4148 SIGNAL DIODE gt 480004 MPS A13 TRANSISTOR a 480008 MPS 3 TRANSISTOR 480056 RCASS9NB DUAL OP AMP DIP 480073 ANALOG SWITCH QUAD 480074 040818 QUAD DUAL INPUT GATE 480075 LH358 DUAL GND SENSING OP AMP 510025 SCH 4 FL 17 5 FRV BLK CLR 4U EE 510
35. Talent Output 4 total 3 pin XLR male single program feeds or 6 pin XLR male optional split feed program feed DLC Input 1 30 pin connector Extension 1 25 pin D connector for extension to secoud PIC 4 e IFB 4 MODULE Controls 4 momentary push buttons glowing IFB interconnect 20 pin ribbon cable TR 50 TALENT RECEIVER Earphone Type dynamic Earphone Impedance 30 ohms or greater Max Output Level 20 dBm Power Required 10 ma quiescent 6 28VDC supplied by Clear Com line Headset Connector 1 8 miniature jack IFB Connector 3 pin XLR male TR 62 TALENT RECEIVER Headset Type dynamic Headset Impedance 2150 ohms Max Output Level 20 dBm Power Required 15 ma quiescent 28VDC supplied by Clear Com line Headset Connector 6 pin XLR male IFB Connector 6 pin XLR male Specifications are subject to change without notice V WARRANTY amp MAINTENANCE Your Clear Com System contains mod ular solid state equipment that allows system expansion and field serviceability Efficient ventila tion is inherent in chassis design Rugged packaging guards against abuse The intercom station chas sis is constructed of 090 5052 H32 aluminum and it contains double sided glass epoxy plug in PC Boards Our circuitry is conserva tively engineered to assure the longest component life We shield heavily against hum RF pick up and solid state dimmer noise Before shipping we test each unit individually to en
36. Vv 7 7921312345 TSIMAZHLG 5527010 153108 dec nid 933 100 530010 NY Ae 5S IM 35 59 uoo 1 03000 is aaa SH 2313S ALY 1012 3304 NUH hela 1922 OLY 1492 8919 ywe o I 9805420 ol MLN 99180 190 ON ocurred 2 401 WIS LON 09 9 76 42 ON OL 6338136 270 13NNVH2 CIV 50 34v 5 15 5 AY F A S AS 34v Suoisisay MY PAY 1206 DIHLAIDNOW AOS Sav2 2 5390 TW g t gt E 100 593 357104 1742 avd VW O 240 ALOW OSI 9 NOWWO 22 129 NALS SAW 7 oz o NI 0 123735 AM 3NI1 72I 3 pO 3 70008 gO any 29 gO 931v71723HNO JOAGE 20 BUA pA 69 JOA CA 510 DOA S G2 41A 2 016 193135 25 t 9 101 2 7 4ANIOd OL 1 1L33H OL S3435 310 UW 13NNNH2 gt 13385 OL gamer
37. ations 1 1 Station Capacity The MS 808 has a regulated power supply that delivers 30 volts at 2 amps Therefore it can support an intercom system that contains any combination of Clear Com s 1 2 or 4 channel Remote Stations The number of Remote Stations that MS 808 can support depends upon 4 factors 1 the current requirements of each Remote Station 2 the length of the cable that interconnects the Stations Most intercom systems incorporate a variety of headset and speaker stations To determine the maximum number that one MS 808 can support see the graph in Figure 2 Match the number of speaker stations in your system to the number of head set stations If the intersection falls within the graph s shaded section one MS 808 can support all the stations in your system In systems where interconnect lines 3 the gauge of the interconnect between stations are longer than cable 1000 feet we recommend you add a 4 the capacitance of the intercon second power source to act as a nect cable back up supply this doubles the system s capacity allowing you to include more Remote Stations Main Stations and Power Supplies can be If your MS 808 is to support remote headset stations only MR 102A RS 100A RS 201 etc the system can paralleled in the intercom system contain up to 100 units If your If your system includes two MS MS 808 is going to support remote 808 s or MS 808 plus another speaker station
38. cable away from heavy AC power sources such as lighting panels or electric motors Avoid sharp bends in the cabling Allow at least 3 inches behind each DLC Station for cable to extend from the rear panel COLOR CODING FOR PAIRED CABLES BELDEN MOGAMI Number Color Combinatlon Pair Number 60 0 Combination Black paired with Red Black paired with White Black paired with Green Black paired with Blue Black paired with Yellow Black paired with Brown Glack paired with Orange Red paired with White Red paired with Green Red paired with Blue Brown paired with Black Red paired with Black Orange paired with Black Yellow paired with Black Green paired with Black Blue paired with Black Violet paired with Black Gray paired with Black Clear pared with Black Red paired with Brown 2 PAIR CABLE Red paired with Yellow Orange paired wih Brown Red poured with Brown Yellow paired with Brown SHIELD SHIELD 2 z 4 0 BLACK BROWN ALACK RET BLACK ORANGE BLACK CABLE WIRING WITH 30 PIN FEMALE CONNECTORS 6 930 NOTE BOTTOM VIEW WIRING SIDE DLC EPES 8 BUSS P NS 5 OF di SCALE DRAWING NO DRAIN SHIELDS TO THAT BUSS 7 BIOOUG ICWBE DO NOT SCALE DRAWING SHEET OF Figure 7 DLC Series Rear Panel Connector Pin Assignments PIN ASSIGNMENT A1 INTERCOM AUDIO 1 A2 INTERCOM AUDIO 2 A3 INTERCOM AUDIO 3 A4 INTERCOM AUDIO 4 A5 INTERCOM AUDIO 5 A6 INTERCOM
39. ce button is pressed the output of the mic preamp is also fed to a buffer amp which provides the rear panel 1 4 phone jack with a balanced line level signal at 600 ohm impedance The mic preamp continues to feed the intercom line as well MS 808 SPECIFICATIONS AMPLIFIER DESIGN IC amplifiers including solid state switching and signalling circuits Current l mited and protected MICROPHONE PRE AMP Microphone Input Mic Input Level Frequency Response Limiter Range Gain Adjust short circuit 200 ohm nominal dynamic type 55 dB nominal 250 12k Hz with mic limiter to maintain level and to prevent overload 25 dB 8 gooseneck mic only HEADPHONE AMPLIFIER Output Impedance Range Output Level Speaker Headset Distortion Amplifier Gain Frequency Response PROGRAM AMPL IFIER Switchable for 0 4 50 2000 ohms 4 watts into 8 ohms 20 dBm into 600 ohms lt 25 THD 12 35 dB 150 18kHz 2dB channels per CH 4 Control Module with individual level controls Frequency Response Input Input Level Common Mode Rejectton POWER SUPPLY Output Voltage Output Current 150 18k Hz 50k ohms trans former less balanced 20 to 0 dBm gt 50 dB 30 volts regu lated circuit breaker protec ted 2 amps maximum MS 808 l amp maximum IS 808 VOLTAGE GAIN M c to line Mic Gain Adjust Line to output 37 dB nominal 5 dB 37 dB 250 dB
40. comes an ISO line To access an ISO channel set that channel s talk toggle switch to the momentary on position This lets you talk to the Stations on the ISO line only and disables your talk and listen ability on all other channels regardless of their talk and listen switch positions You can still hear the external program if input to the auxiliary input while communicating with an ISOlated channel Please call the factory at the above number if you d like to modify any of your channels for ISO operation JUIOg 0 JUIOd 1 27614 958 8815 1 30410 OL 30 6 8 9 amp t nee t 0 e d d o8 808 51 uotusod 440 O1 SUCTEIS u 70 seus pereoipep 195 SURES BOUI pue UOHEIS 808 SW surejuoo tey WAS S e ui iy anid 2 2717 20 001311 3j8j i Mee BRR soon 2 5 475 2H 3 SRT SIGS 222 DDT Gos 9365 0 0 lt 2 1541 OF MOS OO gu 2 10383 1v 037 5 1531
41. conti nuous monitoring of the intercom during IFB use Components of an IFB System PIC 4 Program Controller Talent Receivers TR 50 or TR 62 up to 4 per PIC 4 a DLC Intercom System with at least one IFB 4 Control Module The PIC 4 contains all the controls and connectors to provide the link between the IFB intercom stations and the talent receivers to Talent Each PIC 4 has four outputs With each Talent output the PIC 4 provides a control for dip level and switches for selecting which continuous and or interruptable program feeds the Talent will hear The PIC 4 is powered by Clear Com connected via the 12 DLC System cable 2 Talent Receivers Talent Receivers allow talent to hear the program and cues coming through PIC 4 from the intercom system TR 50 This miniature lightweight belt pack has volume control and a clip for ching it to a belt or under a table supplied with Model 785 1 earpiece The TR 50 accepts one program channel two conductor shielded mic cable It contains an earphone connector and the atta is and connects to the PIC 4 with standard continued 35 IV DLC System with IFB 2 Talent Receivers continued e TR 62 The TR 62 is a compact two channel belt pack that allows the talent to monitor uninterrupted program ear and interrupted program in the other ear Ideal for sportscasting the TR 62 provides a separate volume control f
42. ded mic cable We suggest you try BELDEN 8413 or the equivalent 24 gauge stranded for connections of 500 feet or less For connections that run between 500 and 5000 feet we sug gest BELDEN 8412 or the equivalent 20 gauge stranded Cable for Permanent Installations We recommend you use vinyl insu lated and jacketed cable for interconnecting all permanently in stalled Remote Stations wall mount or custom mount units This cable costs less and is easier to pull through conduit than the rubber insulated type As explained before low capaci Intercom System Set Up continued tance cable must be used We sug have low DC resistance less than gest BELDEN 8762 or the equivalent 15 ohms per 1000 feet with large 20 gauge stranded for up to 500 diameter conductors Cable should feet or BELDEN 8760 or the equiva have low interconductor capaci lent 18 gauge stranded for up to tance less than or equal to 55 5000 feet pF foot of cable capacitance be tween conductor and shield If you don t use Belden cable use a similar type with the equivalent Consult the Belden wire specs in wire gauge and capacitance Cable Figure 3 to ensure that the sub especially in longer runs should stitute cable is the equivalent Figure 3 Belden Shielded Cables insulation Jacket Nom 9 Suggested Nom Trade of AWG amp Thickness Thickness O D Shield Working Cond Stranding inch Inch inch Coverage Voltag
43. e indicated on the individual MS 808 Configuration label that is affixed to the right hand side of the MS 808 rear panel and on the MS 808 Configuration Sheet that is shipped with each unit ADDENDUM November 17 1987 x MS 808 MIC TO LINE GAIN LEVEL INCREASE In effecting a 4dB Mic to Line increase in gain level the following changes have been made Change To 2 7K OHM R37 3 9K OHM 10K OHM 15K OHM In effecting a 4dB Mic to Line increase in gain level the following Changes have been made Change At To 4 7K OHM R29 31 33 35 CH 4 MIC TO LINE GAIN LEVEL INCREASE In effecting a 4dB Mic to Line increase in gain level the following Changes have been made Chanqe At To 10K OHM R37 38 39 40 33711 SPECIAL NOTE ON PAGE 13 OF THE 5 808 INSTRUCTION AND SERVICE MANUAL PART NUMBER 810003 UNDER THE SECTION DLC SYSTEM INTERCONNECT DELETE THE THIRD SENTENCE WHICH READS With each DLC station we supply two 30 pin female connectors CLEAR COM NO LONGER PROVIDES THESE CONNECTORS AT NO CHARGE THEY MUST BE ORDERED AND PURCHASED SEPARATELY THE PART NUMBER IS DLC 820018 kkktkXkxkkkxt tkkzxstzxktkxtXxxkzrzxxxtxxxttkxrxkktxkitXxxxitixkiktkkXxttixiitkit THE DLC SERIES OPERATION MANUAL Table of Contents Introduct on OP Circuit Flow Description 5 808 B MS 808 Specifications C Technical Overview Intercom Syste
44. e pf ft 8413 2 24 45x40 019 025 190 100 300 30 8412 20 26x34 020 043 268 84 600 30 8762 20 7 28 014 028 196 350 27 20 7x28 015 030 360 27 22 7x30 008 019 165 35 8725 8723 2 2 8760 2 18 16x30 018 028 222 24 8 4 between conductors Capacitance between 1 conductor and other conductor connected to shield Cable for Multi Channel Lines When installing a system that contains two or four channel Remote Stations you can send each channel in its own two conductor shielded mic cable OR you can 1 route 2 channels together in a two pair individually shielded cable Belden 8723 2 route 4 channels together in a four pair individually shielded cable Belden 8725 Whichever method you chose make sure that the cable you select provides A SEPARATE SHIELD FOR EACH CHANNEL See Figures 4 and 5 Two Pair and Four Pair Cable Figure 4 FIXED INSTALLATION WIRING TWO CHANNEL PROGRAM CONNECTIONS Pin 1 GND METHOD I 4 WIRES UNSHIELDED IN CONDUIT PO S 2 CH 2 CH REMOTE REMOTE STATION STATION SPEAKER PIN CONNECTIONS 1 Common 2 30V 3 AUDIO NOTE CONDUIT GROUNDED NOTE TO MS 808 CHASSIS IF WIRES DO NOT FIT IN STATION CONNECTOR BLOCK USE SEPARATE TERMINAL STRIP OR JUNCTION BLOCK TO CONNECT WIRES TOGETHER II 1 3 1 Intercom System Set Up continued INTERCONNECTION PROCEDURES When routing cable from the MS 808 to the Remote Station
45. gram Input pin XLR male Interconnect cable The PIC 4 has two 3 pin female XLR is two pair individually shielded connectors for balanced program cable inputs The program input uses a differential amplifier to accept two separate balanced signals without using a transformer A signal ranging from 18 dB to 16 NOTE On the DLC mainframe rear dB will drive the line to full panel the auxiliary program input output The input impedance of the 3 pin XLR type female is wired to program amplifier is approximately the Program 1 pins in the 30 pin 50k ohms bridging male connector e 36 IV DLC System with IFB continued C PIC 4 OPERATING CONTROLS After you connect the PIC 4 between the intercom system and the Talent Receivers and you adjust all le vels and controls according to desired operation then the PIC 4 becomes transparent and need not be an active system component Program Level amp 2 Adjusts volume level of associated program inputs 1 and 2 Program Select Toggle Switches Each Talent Output A B C and D is associated with three controls The Non Int switch allows you to select which one program the TR 62 will receive continuously while the Int switch selects which interrupted program plus cues will be monitored by either the TR 62 or the TR 50 The numbers 1 and 2 designate the program feeds as input to the PIC 4 rear panel ie Pgm 1 amp Pgm 2 Dip Adjust Allows you
46. h the program 1 lines in the main frame s 30 pin connector see Fig 7 for specific pins Module circuit board see Figure 8 for exact location These trimpots adjust the sidetone level for the individual channels Turn a sidetone null trimpot clock wise to decrease the s detone heard on its associated channel At the factory we set all these trimpots for maximum null Beneath the gooseneck mic is a headset connector for use with a dynamic headset The headset con nector s pin assignments are Pin 1 Mic Common P n 2 M c Hot Pin 3 Headphone Common Pin 4 Headphone Hot Do not use the mic or headset with in two feet of AC power trans II Intercom System Set Up continued HEADSETS SPEAKER amp GOOSENECK MIC continued former or the mic s will pick up hum The Station s headset speaker amp lifier can drive a headset to lev els greater than 110 dB SPL When the headset jack is not used the Station s amplifier gain is reduced from 50 dB to unity gain elimina ting pick up from the unused input All dynamic headset connectors in Clear Com Stations are pin XLR male connectors These are for use with monaural headsets but can be adapted for use with stereo binau ral headets see Section G To assure proper level and perfor mance the headsets or handsets or mics should have the following characteristics Microphone Type dynamic Impedance 150 250 ohms Outpu
47. ion for each intercom chan nel is accomplished with dip switch which is located the 4 Control Module s printed circuit board Loosen the screws that hold the Control Module onto the DLC Station s front panel and gently pull the Module out of the slot until you have access to the dip switches grouped insets of 4 there is one set for each channel See Figure 9 CH 4 Circuit Board for exact location of dip switches The circuit board is labelled on its far left side next to the first set of dip switches with the D PROGRAM SEND RECEIVE The rear panel of each 118 185 main frame contains a 3 pin female connector for a balanced auxiliary program input The Station opera tor hears the program in the head set and or speaker In most cases the headset connector on the DLC mainframe s front panel has the intercom and program signals combined onto one pin pin 4 although the DLC main frame is optionally available with a 6 pin headset connector that has separate program and intercom pins for use with binaural headsets The program input uses a differen switch functions Dip switch 4 in each set is for that channel s termination Each termination switch must be set to the or closed not open position Make sure a termination switch is on for all intercom channels in your system Even if a channel is not in use you should terminate it At all other DLC Stations
48. is controlled by the mic on off switch which controls the power to the gooseneck mic The signal input then goes through the mic preamp where it is amplified approximately 54 dB The signal is controlled by the limiter Q1 which maintains the output near 0 dB level The mic preamp output then goes to the 4 channel boards to the indi vidual channel talk analog switches 1 IC 3 5 and IC 7 The signals then go through line driver amplifiers which feed the intercom lines through 1 5k resistors and then out to the intercom line The impedance is raised approximately 15k ohms by the receive buffer IC8 which feeds its associated circuitry composed of 14 precision resistors R172 R36 and R156 Sidetone Sidetone null balance is achieved by taking a portion of the signal from the output of the line driver IC8 and adjusting its level and phase with the sidetone control P8 until it balances out the signal in the line driver the resultant output at pin 1 is fed to the listen analog switch IC7 It is then mixed together with the signals from the other channels through resistor R35 to a summing amplifier IC7 The summing amp s output is fed through headset vol ume control into the 4 watt power amplifier 108 The signal is then applied to the station s speaker and through a separate op amp to the headset connector pins 3 and 4 Signalling Signalling is achieved by applying a DC voltage on
49. lk between station pairs that have been simultaneously selected for monitoring Clear Com prevents audio feedback between the station s mic and spea ker with individual anti sidetone circuits on each intercom channel Analog logic circuitry determines the direction of the intercom sig nal regulating the ga n circuitry for the highest performance Power Supplies IS 808 Stations are self powered and incorporate regulated DC power supplies 1 amp for operation with 115 120 VAC 50 60 Hz line power MS 808 Stations have regulated pow er supplies 2 amps and the con nectors to support up to 100 stan dard remote headset stations or 20 remote speaker stations distributed along a mile of wire Remote sta tions bridge the intercom line at a very high impedance and place a minimum load on the Audio level always remains constant even when stations leave join the line Both the MS 808 and the IS 808 are short circuit protected providing an LED for short indication and a circuit breaker re set button The 28 30 VDC provided by the MS 808 enables Remote Stations to operate with minimal current head set stations 10 milliamps speaker stations 20 milliamps while gen erating loud listen levels greater than 110 dB SPL The higher vol tage and low current keep voltage losses to an absolute minimum in long lines II INTERCOM SYSTEM SET UP A SYSTEM INTERCONNECTION 1 MS 808 amp Standard Remote St
50. m Set Up A System Interconnection 1 MS 808 amp Standard Remote Stations 7 1 1 Station Capacity 1 2 Interconnect Cable 1 3 Interconnection Procedures 2 DLC System Interconnect on 13 B Assigning Channel I D s C Termination D Program Send Receive E Channel Sidetone Null A S T F Headsets Speaker and Gooseneck Mic MS IS 808 Operating Controls 23 Unlabelled Button Iso Conversion from Mono to Stereo Headset DLC System With 8 Introduction 1 PIC 4 Program Controller 2 Talent Receivers 3 DLC System B System Connections PIC 4 Operation D IFB System Specifications V Warranty amp Maintenance VI Trouble Shooting VII Bill of Materials ILLUSTRAT IONS DLC Mainframe with Control Modules page 2 MS 808 Power Supply Capacity graph 7 Belden Cable Specifications 9 Two Channel Station Wiring Permanent Installation 10 Four Pair Cable Detail 12 DLC Interconnect Cable Wiring 14 DLC Connector Pin Assignments 15 Input Output 1 0 Printed Circuit Board 17 Intercom Control Module CH 4 Printed Circuit Board 18 Headset Cable 22 Headset Extension Cable 22 MS IS Front Panel Controls 24 Point to Point System Interconnection 27 I O Printed Circuit Board Stuffing Diagram 29 Internal Wiring of DLC Station 31 I INTRODUCTION This manual is a reference document that helps the intercom user and the service technician understand se
51. noise fields IMPORTANT Chassis ground and signal ground Pin 1 on intercom XLR connectors are NOT the same point DO NOT connect the chassis and Pin l together The chassis is insulated from the signal ground with a capacitor 01 microfarad 1 4 kV This eliminates the hum and poten tial shock hazards that might arise should the Stations be at different ground potent als Refer to the Permanent Installation Wiring Diagram Fig 4 when making connect ons Crosstalk When routing two or more channels to one Remote Station the amount of crosstalk is proportional to the amount of DC resistance in the ground return Two ohms of resistance or less is ideal two ohms will give 40 dB of isolation Anything greater than two ohms will increase crosstalk Be sure to route each channel in ts own shield II Intercom System Set Up continued 8 When using four pair cable you should connect all the shields and ground wires This effectively lowers ground resistance and improves crosstalk See the Interconnect Cable Detail diagram Fig 5 Also tie any unused wires in the interconnect cable to Ground Pin 1 on intercom XLR connectors thereby further improving crosstalk 4 PAIR CABLE Belden 8725 or equivalent gt A3M A3M Figure5 INTERCONNECT CABLE DETAIL Intercom System Set Up continued 2 DLC SYSTEM INTERCONNECT ION DLC Stations and the
52. ockwise overall sidetone level increases Sidetone can be varied from fully off to fully on no null level For maximum speaker output without feedback turn the sidetone knob fully counter clockwise maximum null INTERCOM VOLUME This knob adjust the overall volume of the channels monitored in the speaker headset of the DLC Station 5 15 808 Operating Controls continued CH 4 Control Module TALK LISTEN MONITOR CONTROLS The front panel of the Control Module contains four pairs of in tercom channel controls For each channel there is a Listen push button and a Talk toggle switch When a square Listen button is activated it dimly illuminates locks into place and allows the operator to listen to activity on the associated channel The operator can listen to as many chan nels as needed NOTE the positions of the Listen buttons determine which channels will receive a visual signal when the MS IS operator presses Call the Call signal travels only on channels whose Listen buttons are ON The Talk toggle switch has three positions on off and momen tary on The Station operator can talk on as many channels at the same time as s he wants Activating the momentary Talk function automatically dips the Station s speaker output approximately 6 dB so you don t get feed back ISO OPTION The CH 4 Module contains a certain jumper within the elec tronics for each channel When removed the channel be
53. or each program It works with any binaural headset 150 ohms or greater The TR 62 connects to the PIC 4 with individually shielded two pair cable 3 DLC System With IFB IFB 4 Control Module This 4 channel module plugs into the DLC Station mainframe One or two Modules can be plugged in for accessing up to eight talent The IFB 4 Module contains 4 momentary push buttons each of which is associated with a separate IFB channel Talent output The buttons glow continuously for easy identification The DLC Station mainframe contains an ALL IFB pushbutton that simultaneously accesses all talent B IFB SYSTEM CONNECTIONS o The PIC 4 rear panel provides two 3 Talent Receiver Output types of intercom input connectors If a single program signal is fed 3 pin XLR type female connectors to Talent then the Receiver used for separate intercom channels is a TR 50 with TS 1 earpiece and four and the 30 pin male connec the Talent Out connector on the tor for the DLC System line The 4 is a 3 XLR male Inter PIC 4 is powered by Clear Com connect cable is standard two conductor shielded mic cable 1 Intercom System Input Route 12 pair DLC interconnect If a split program is fed to Talent ble from any MS IS mainframe to the both program inputs used then PIC 4 s 30 pin connector IFB In the Receiver is a TR 62 with a terconnect binaural headset and the Talent Out connector on the PIC 4 is a 6 2 Pro
54. ough XLR connector 1 is monitored via the Channel A buttons the line to XLR connector 2 is monitored via the Channel B buttons the line to XLR connector 3 is monitored via the Channel C buttons and so XLR connector 9 is for the dedi cated line To change the channel line assign ments use the point of a pencil end of a paper clip etc to push each Matrix slide switch up or down its column thereby assigning a channel ID to each intercom line run through the 30 pin connector it 13 possible to assign more than one line to the same channel you can assign two sets of talk listen controls to one XLR input Figure8 nii 181 36005601901 Mic Trim Input Output P C Board Figure9 NL i ear Com macom systems SERIAL 3311 19 Sen Code in USA Sidetone Null Controls Termination Talk Controls 6 t M it T M front panel CH 4 Control Module II Intercom System Set Up continued 6 fter completion of cable routing and system interconnection you must make sure that the system is properly terminated once at a point in the system Only one termination per channel is needed All channels should be terminated at any one of the MS or IS Stations or other Main Stations in the system or at the MS 808 1f it s the only power source Terminat
55. ponts on the I O Board that are set at the factory for optimum operation refer to Figure l4 for their location Dedicated Line Sidetone Null reference designator P4 Adjusts the sidetone null on the dedicated line should not require re ad justment Gooseneck Mic Trim P5 Sets the level for the gooseneck mic sensitivity over a 10 dB range Master Program Gain P6 Adjusts the program gain from full off to full on gt 60 dB CAUTION DO NOT CONNECT MIC GROUND amp HEADPHONE PIN 1 MIC GROUND Figure 10 HEADSET CABLE CONNECTIONS SHIELDED PAIR LDEN 8416 Note Headset leads do not have PELDE to be shielded on Belden 8734 SHIELDED PAIR GROUND TOGETHER AT PIN 2 MIC HOT ANY POINT PIN 3 HEADPHONE GROUND Pin 4 HEADPHONE HOT Figure 11 HEADSET EXTENSION CORD LESS SHIELDED PAIR PIN 1 MIC GROUND CAUTION DO NOT CONNECT PIN 2 MiC HOT MIC GROUND amp HEADPHONE PIN 3 HEADPHONE GROUND GROUND TOGETHER Pin 4 HEADPHONE HOT 24 III 5 808 15 808 OPERATING CONTROLS The mainframe and CH 4 Module controls are described as they appear from left to right viewing the front panel of the MS IS 808 Speaker Program Sidetone Intercom Mic gt i Volume Volume Volume m 7 wise 4 s Headset POWER SWITCH PUSH TO RESET CIRCUIT BREAKER LED SHORT INDICATOR The MS IS mainframe has a power cord that connects to a source of 105 125 VAC 50 60
56. s 39 v 95 Le ius MLP A970 er3 9 H0 3 i IV SAW POM gt ET ET 51 L4 Ld LD ID H YOU NVR T Ov 215 Mie OF 9 3701 152 1723135 v S e owe nos 1 vg 1 as dh 13V 39wva belt O TW VW Q 2 5 iS WDA i 75 Z 018 b 653 292 lc 3400 SPO 42 00000 ZA YEE 795 39089 Jdd4v 7 52 55 6 2 Iso Zb 293 001 0 9 wis 1192 zoly 95 9A ro 152 Bl 9002 Zor Js ids PSD T 5 7 I 0 Pers ozz 295 coy ES 10 22 d nor 022 9 2 pou em i LA lt l g z 4 22 opu uos E VIDI 199 97D OL _ NL _ ASE STANSSOOT OI 095 922 pa 623 Sd 13 OL SHivd 381 9 9 11070031811 WOH3 NOLIOS WS UL O ar 2073 0 00 9 SL Suy S 9I 3Q SVT ONTIVNDIS INIOd Ol 1NiOd
57. s allow at least three inches behind rack mount units for cables to extend from the rear panels Avoid sharp bends in the cabling Always route cables away from heavy AC power sources such as lighting panels or electric motors Portable and rack mount Remote Stations have female male pairs of in put output XLR connectors when installing a system with these units tions along one interconnect path it s easy to daisy chain several sta MAIN DAISY CHAIN Alternately you might try Clear Com s Quadropuss Splitter to feed lines to individual Stations the Quadropuss is a line splitter with one input and three outputs and is plugged directly into the 115 808 or installed along the line Both these methods lessen the amount of cable you need and also simplify installation Use of Conduit Wall mounted and custom mounted Remote Stations connect to the intercom system via 5 pin terminal strips instead of XLR connec tors If you re using these in an installation site that has conduit run interconnect cables through the conduit If the conduit has existing wire you can use that whether it s shielded or not Be sure to install cable in accordance with approved local building codes Not Using Conduit In installations where conduit is NOT used and equipment doesn t share a common ground it is good engineering practice to run an additional ground wire to tie all chasses together This decreases susceptibility to electrical
58. s only KB 111A RM power source PS 452 MS 200 etc 400 RM 120 etc the system can the system termination occurs in hold up to 20 units only ONE of the power sources Example have 40 headset stations how many speaker stations can my system support Answer 12 speaker Stations HEADSET STATIONS eie rohan a 01234 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 SPEAKER STATIONS Figure 2 Maximum Amount of Remote Stations 11 Intercom System Set Up continued 1 2 INTERCONNECT CABLE Each intercom channel is normally fed on standard two conductor shielded mic cable This cable is routed from a 3 pin male connector on an MS 808 rear panel to a Remote Station s Input connector One wire in the cable carries DC power and the other wire carries the audio signal the shield serves as cir cuit ground The pin assignments on ALL 3 pin intercom connectors male and female PIN 1 COMMON PIN 2 30 PIN 3 INTERCOM AUDIO The 18 808 provides 28 30 to run the Remote Stations Each one uses minimal current headset sta tions 10 milliamps quiescent Speaker stations 20 mA quiescent and generates loud listen levels greater than 110 dB SPL The higher voltage and low current keep voltage losses to an absolute mini mum in long l nes If the voltage drops because you ve added many extra Remote Stations or great lengths of cable the stations in the sy
59. stem continue to operate nor mally even with less than 12 volts available CHOOSING CABLE The 5 808 contains nine XLR 3 pin male connectors one for each of the eight channels and one for the dedicated line Depending upon what stations are in your system you will 1 route each channel on a separate two conductor cable that goes to single channel Remote Stations or route two channels together on multi pair cable to two channel Remote Stations or route four channels together on multi pair cable to the four channel Remote Stations When choosing interconnect cable keep in mind the following consi derations 1 DC resistance affects crosstalk In permanent installations do not use cable smaller than 20 gauge stranded except on runs shorter than 100 feet Keep the total resistance under 100 ohms The capacitance of the intercon nect cable affects the frequency response and sidetone stability of the Remote Stations Total capacitance should be 25 micro farads or less capacitance be tween the conductor and shield equivalent to an intercom system with 5000 feet of 50 pF foot of cable Standard Clear Com Remote Sta tions operate with cable that has no more than 35 pF from conductor to conductor and no more than 70 pF from conductor to shield Cable for Portable Installations Typical cable for connecting the MS 808 to portable single channel Remote Stations is rubber jacketed two conductor shiel
60. stem operators Interconnect Cable Required DLC Stations interconnect with l2 pair cable the rear panel of each unit has one or two 30 pin male connectors for output input This manual provides de tailed diagrams to help the user construct the DLC interconnect cable putting a FEMALE 30 Tuchel type connector at each end Figure 1 I A MS 808 CIRCUIT FLOW DESCRIPTION MS IS 808 Station circuitry contains three major components the input output I O board the four channel intercom modules and the power supply The 1 0 board contains the micro phone preamplifier the power am plifier bias supply circuits and the dedicated line monitoring cir cuit The four channel intercom board Model CH 4 contains four identi cal channel monitoring circuits each of which consists of switches and logic that control for each channel ae tas the monitoring of the talk listen circuits the DC call signalling the termination the program distribution There are two mic inputs to the intercom station one is the mic on the headset which is connected to pins 1 and 2 on the station s front panel headset connector it is input to the mic preamp IC 1B via header 7109 The second input is to the built in electret gooseneck mic which is like the headset s mic mixed into the summing input pin 6 of IC 1B The gooseneck mic input level is adjustable through trimpot The electret mic
61. sure that it meets or exceeds all specifica tions All units are guaranteed by Clear Com against defects mater tals workmanship for a period of one year following date of pur chase 90 days for headsets see the warranty card enclosed with the unit Our Engineering and Service Depart ments will gladly give you techni cal advice and assistance If you have any questions regard ng opera tion modifications or applica tions of your intercom system call us between 9 a m 5 p m at 415 861 6666 Pacific Standard Time VI TROUBLESHOOTING 5 tom System is non operable power switch is not illuminated Cause a b Loss of AC power Internal fuse is blown could be caused by power supply failure a b Remed Plug unit into depen dable AC source Replace fuse if it blows repeatedly bridge rectifier or other component probabiy shorted inside power supply Have power supply fixed A M A M e P o a m t Circuit breaker trips repeatedly short circuit LED remains lit Shorted or mis wired interconnect cable Defective remote unit Remove cables one at a time from Main Station until faulty line is located Check for shorts between Pins l
62. t Level 55 dB Headphone Type dynamic Output Impedance 300 2000 ohms Clear Com can supply you with the Model YC 100 Y Cable which al lows you to plug two headsets into the one 4 pin connector on the Station s front panel Alternate ly you can construct your own Y cable we recommend you use Belden 8416 the equivalent 2 tor 25 gauge or Belden 8734 or the equivalent 3 conductor 22 gauge See Figure 10 Y Cable Construction You can also build an extension cord for the headset using the same cable specified for the Y cable Limit the extension length to 15 feet or less greater lengths lead to possible capacity coupling between the mic signal and the headset signal which causes oscil lation or a loss in frequency sponse See Figure 11 Headset Extension Cord Construction If you want to connect an external speaker to the MS IS mainframe use one with impedance of 8 ohms or more Connect the two wires from the speaker to the tip and sleeve of a 1 4 phone plug then plug it into the external speaker jack on the Station s rear panel The external speaker always remains on and does not affect operation or performance of the Station s built in speaker which is included when the MS IS mainframe contains an SP 4 Speaker Module The mainframe ia easily adapted for use with a stereo binaural head set You will need 6 pin insert male Switchcraft type for the connector
63. t location On the Assignment Matrix the hor izontal rows labelled 1 9 corre spond with the nine intercom lines run through the 30 pin connector on the Station s rear panel MS or IS mainframe Refer to the pin out chart Figure 7 to see which pins on the connector correspond to which intercom lines The vertical columns on the Matrix are labelled with alphabet letters A H and D L They correspond with the channels monitored v a the CH 4 Modules The position marked off the Assignment Matrix disables one of the circuits within the unit dis connecting it entirely from the system It should be used as a place to park the dedicated line slideswitch in systems that do not use point to point communications At the factory we set up the Ma trix so the intercom lines in the 30 pin connector are assigned to the channels in a straight forward manner Intercom line Intercom line Intercom line Intercom line Intercom line Intercom line Intercom line Intercom line Intercom line Channel Channel Channel Channel Channel Channel Channel Channel Dedicated Line WHE If you have an MS 808 that connects to standard remote headset speaker stations instead of DLC System components there s no need for you to re set the Assignment Matrix The 3 XLR connectors on the Station s rear panel directly cor respond with the intercom lines in other words the line run thr
64. t up operate and maintain the Clear Com DLC Series Production Intercom System This manual does not contain information about electrical adjustments that require test procedures and equipment Please call the factory should your system need adjustment The DLC Series contains the 5 808 and IS 808 Station mainframes the CH 4 and IFB 4 Control Modules the SP 4 Speaker Module and related accessories including a Four Wire Interface Unit Model IF4 4 and a fully integrated Pro E System Model PIC 4 IFB Controller and IFB Talent Receivers TR 50 TR 62 The DLC Series is a high performance intercom system designed for teleproduction and broadcast studios although its features versatility and reliability make it ideal for commercial or industrial use Its innovative solid state circuitry and digital logic control enable programmable two way communications in ty Line or a Point to Point intercom system With the addition of Clear Com s interface units the System can link with many 2 3 and 4 wire communications devices including television cameras telephone lines and other intercom Systems such as RTS or Roh DLC Station Features 1 FULL SYSTEM CAPABILITY each DLC Station is self powered The IS Station contains a regulated power supply the MS Station s regulated power supply is slightly larger so it can support an intercom system containing standard remote headset or speaker stations Each MS IS mainframe
65. tor 1 4 phone jack as a balanced line level signal with 600 ohms impe dance The S A function has no sidetone The MS IS mainframe rear panel also provides a 1 4 phone jack for Speaker Mute Speaker Mute provides a contact closure when the Stage Announce function is activated allowing you to use a relay that will shut off or mute an external speaker located close to the MS IS Station so there s no feedback The Speaker Mute phone jack should not be used to send a signal to a speaker UNLABELLED BUTTON On the front panel of the MS IS mainframe there is an unlabelled button Depending upon the specified configuration when your System was ordered this button is any of the following a unwired b All Page talk to all channels at once c All IFB dip program and cue all talent at once You might choose to wire up this button yourself if so call our Sales or Engineering Department 415 861 6666 for assistance PROGRAM VOLUME This front panel knob adjusts the overall volume level of the auxiliary Program signal in the Station s speaker or headset SIDETONE VOLUME This knob controls the overall volume level of the operator s voice as he hears it in the Station headset speaker Sidetone control also prevents feedback when the Station is used with an external speaker The sidetone control does not affect the level of the operator s voice heard by other Stations or the level of incoming signals s you turn the knob cl
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