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ClearCom CCI-22 Instruction Manual

Dual party-line interface
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DUAL PARTY-LINE INTERACE
CCI-22
I N S T R U C T I O N M A N U A L

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Summary of Contents for ClearCom CCI-22

  • Page 1 DUAL PARTY-LINE INTERACE CCI-22 I N S T R U C T I O N M A N U A L...
  • Page 2 CCI-22 Dual Party-Line Interface Instruction Manual ©1997, 2005 Vitec Group Communications, Inc. All Rights Reserved Part Number 810307 Rev. A Vitec Group Communications, Inc. 4065 Hollis Street Emeryville, CA 94608-3505 U.S.A Clear-Com is a registered trademark of Vitec Group Communications, Inc.

  • Page 3: Table Of Contents

    CONTENTS IMPORTANT SAFETY INSTRUCTIONS v-vi OPERATION Introduction ..........1-1 Operation .
  • Page 4 C C I - 2 2 D U A L P A R T Y - L I N E I N T E R F A C E...

  • Page 5: Important Safety Instructions

    Please read and follow these manual. instructions before operating (3) Do not install a CCI-22 near a heat source such as a radiator, heat register, a CCI-22 dual party-line stove, or other apparatus (including amplifiers) that produces heat. Do not place naked flame sources such as candles on or near a CCI-22.
  • Page 6 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol alerts you to the presence of uninsulated dangerous voltage within the product's enclosure that might be of sufficient magnitude to constitute a risk of electric shock. Do not open the product's case. This symbol informs you that important operating and main- tenance instructions are included in the literature accompanying this product.

  • Page 7: Operation

    However, the nature of 2-wire to 4-wire hybrid conversions may limit the maximum number of external 2-wire party-lines that can be combined. Call signals to any one of the CCI-22 channels will reach destinations in the other CCI-22 channels in addition to the destination ports within the matrix.
  • Page 8 The side-tone nulling procedure for each channel of the CCI-22 is described here. The CCI-22 includes built-in nulling circuitry, including a test tone generator and an accessory earphone. The earphone plugs into a 1/8-inch phone jack on the front panel. When the earphone is plugged in, it automatically switches on a test tone, and monitors the output of the null circuit.
  • Page 9 5. If the "R" control is turned fully counter-clockwise, the line has either more than one termination, or an excessive resistive load. 6. If the "R" control is fully clockwise, then the line has no termination. 7. The "L" control compensates for the low-frequency inductive and capacitive elements of the external party-line.
  • Page 10 1 - 4 I C S - 1 0 0 8 / 1 0 1 6 I N T E R C O M S T A T I O N...

  • Page 11: Installation

    2. Remove the blank plate covering the slot. 3. Set any Party-Line Termination Jumpers as necessary. 4. Slide the CCI-22 in the slot and ensure that the card is fully seated. 5. Tighten the CCI-22’s front-panel mounting screws. TERMINATION OF PARTY-LINES A “Clear-Com termination network”...

  • Page 12: Wiring

    Frame” on page 2-1. For internal jumper settings and adjustments refer to “Adjustments” on page 2-8. The “user” side of the CCI-22 for each channel is on a pair of DB-9M connectors on the rear of the interface frame. Figure 2 shows the pinout of either one of these connectors.
  • Page 13 CCI-22 channel to be used on either Clear-Com or RTS party-lines. In the wiring diagram in Figure 4, all connections to the CCI-22 are made using only one of the CCI-22’s two parallel DB-9M connectors. The wiring diagram in Figure 5 shows the same connections as Figure 4, except that each DB-9M connector is wired separately.
  • Page 14 If using such a supply: 1. Disable the terminations by using the switch. 2. Connect the PS-22 output to all of the CCI-22 channels to be powered using the standard three connections in the XLR connector.
  • Page 15 Beltpack #4 Matrix CCI-22 Clear-Com Power and Ground Power Supply Connections Only Figure 6: Diagram of One Power Supply with Four CCI-22 Terminations DB-9F On First CCI-22 Beltpack #2 Beltpack #1 Spade Lug to Chassis Ground 7-in. 18 gauge wire Two 0.01...
  • Page 16 2-channel 2-conductor “RTS” line using the CCI-22’s two channels. The CCI-22 does not support RTS call signals. Power to the CCI-22’s channels must be provided by the external party line. The power connection for each channel is the “+30 VDC Power” pin on the appropriate DB9-M Interface I/O connector on the rear-panel assembly.
  • Page 17 DB-9F Spade Lug to 0.01 uF Chassis Ground 7-in. 18 gauge wire on IMF-3 Figure 8: Cable Wiring Connection for Two RTS Party-Line Channels to the Two Isolated RTS Lines In Figure 8, each RTS channel is completely isolated from the other, including the grounds.

  • Page 18: Adjustments

    30 dB over the frequency range of 200 Hz to 8 kHz. To null one channel of the CCI-22: 1. Connect the external party-line devices to the CCI-22 channel. Make sure that any connected devices do not have their microphones on.

  • Page 19: Configuration

    Following are some troubleshooting hints if a deep null cannot be obtained: • If the “R” control is turned fully counter-clockwise, the line has either more than one termination, or an excessive resistive load. • If the “R” control is fully clockwise, then the line has no termination. •...
  • Page 20 2 - 1 0 C C I - 2 2 D u a l P a r t y - L i n e I n t e r f a c e...

  • Page 21: Maintenance

    MAINTENANCE INTRODUCTION This chapter provides schematics, assembly drawings and component lists for the CCI-22 dual party-line interface module. To view diagrams please refer to the end of this chapter. BILL OF MATERIALS BILL OF MATERIALS FOR THE CCI-22 MODULE PCB...
  • Page 22 RESISTORS & RESISTOR PACKS Value Power Type Tol. Part # Designator OHM 1/4 Carbon Film 410002 R101 R201 OHM 1/4 Carbon Film 410004 R109 R209 OHM 1/4 Carbon Film 410135 R106 R206 OHM 1/4 Carbon Film 410071 R105 R205 OHM 1/4 Carbon Film 410006 R153 R154...
  • Page 23 220K OHM 1/4 Carbon Film 410028 R110 R111 R120 R133 R157 R158 R159 R160 R210 R211 R220 R233 R257 R258 R259 R260 330K OHM 1/4 Carbon Film 410033 R135 R235 470K OHM 1/4 Carbon Film 410030 R103 R137 R140 R152 R203 R237 R240 R252 560K...
  • Page 24 P102 P202 Transformer 600 OHM 1:1 AUDIO TRANS 560026 T101 T102 T201 T202 BILL OF MATERIALS FOR THE CCI-22 NULL PCB Note: Refer to FIGURE I2-4 Assembly Drawing - CCI-22 Null PCB, Rev. D CAPACITORS Value Type Volts Tol. Part #...
  • Page 25 OHM 1/4 Carbon Film 410136 R118 R218 200K OHM 1/4 Carbon Film 410109 R117 R217 220K OHM 1/4 Carbon Film 410028 R107 R207 INTEGRATED CIRCUITS Device Description Part # Designator Op Amp NE5532 DUAL LO NOISE OP AMP 480070 IC101 IC102 IC201 IC202 MISCELLANEOUS Device...

  • Page 26: Diagrams

    DIAGRAMS Figure 10: Block Diagram - CCI-22 Interface 3 - 6 C C I - 2 2 D U A L P A R T Y - L I N E I N T E R F A C E...
  • Page 27 Figure 11: Schematic - CCI-22 Interface, Rev. A 3 - 7 C C I - 2 2 D U A L P A R T Y - L I N E I N T E R F A C E...
  • Page 28 Figure 12: Assembly Drawing - CCI-22 Main PCB, Rev. D 3 - 8 C C I - 2 2 D U A L P A R T Y - L I N E I N T E R F A C E...

  • Page 29: Specifications

    SPECIFICATIONS Note: 0 dBv is referenced to 0.775 V RMS PARTY-LINE CHARACTERISTICS (CLEAR-COM MODE) Audio Level -15 dBv nominal Clipping Level +3 dBv minimum Impedance Greater than 10k ohms (bridging) Frequency Response 200 to 10k Hz, ±3 dB PARTY-LINE CHARACTERISTICS (RTS MODE) Audio Level -10 dBv nominal Clipping Level...
  • Page 30 OPERATING ENVIRONMENT Temperature Between 0° and 70° C (32° to 150° F) PACKAGE DIMENSIONS Frame Slot Usage 1 slot of IMF-3 or IMF-102 frame Weight 0.54 lb (0.22 kg) Notice About Specifications While Vitec Group Communications makes every attempt to maintain the accuracy of the information contained in its product manuals, that information is subject to change without notice.

  • Page 31: Vitec Group Communications Warranty

    Web site: www.clearcom.com (Click the 24 X 7 User Support symbol on the Web site.) Email: support@clearcom.com FAX: +1 510 496 6610 EXCEPTIONS This warranty does not include damage to a product resulting from cause other than part defect and malfunction. The VGC warranty does not cover any defect,...

  • Page 32: Warranty Repair

    WARRANTY REPAIRS While VGC will ensure complete system integrity by providing whatever support is necessary to resolve any failure covered under the terms of the warranty, the normal procedure will be to repair or replace any defective Line Replaceable Unit (LRU) that is returned to VGC during the warranty period.
  • Page 33 Call: +49 40 66 88 40 40 Monday through Friday 09:00 – 17:00 (GMT) +49 40 66 88 40 41 anytime, any day (But you must have your PIN number ready) Web site: www.clearcom.com (Click the 24 X 7 User Support symbol on the Web site.) For returns from the Americas and Asia...
  • Page 34 WARRANTY VALIDATION To validate your warranty, fill in the information below, and mail it to your local Technical Service Center. 5 - 4 V I T E C G R O U P C O M M U N I C A T I O N S W A R R A N T Y...

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