Clear-Com ICS-21 Instruction Manual
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Clear-Com ICS-21 Instruction Manual

Clear-Com ICS-21 Instruction Manual

Clear-com ics-21; ics-21dt speaker station
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ICS-21/21DT
SPEAKER STATION
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 Clear-Com ICS-21

  • Page 1 ICS-21/21DT SPEAKER STATION I N S T R U C T I O N M A N U A L...
  • Page 2 U.S.A Clear-Com is a registered trademark of Clear-Com Intercom Systems. The Clear-Com Logo is a registered trademark of Clear-Com Intercom Systems. Matrix Plus is a registered trademark of Clear-Com Intercom Systems. IBM is a registered trademark of International Business Machines Corp.

  • Page 3: Table Of Contents

    Power Connection (6) QUICK START INSTALLATION MAINTENANCE Troubleshooting Tips Technical Reference Component Layouts/Bills of Materials/Schematics ICS-21/21DT Main PCB Matrix Option PCB SPECIFICATIONS CLEAR-COM LIMITED WARRANTY Factory Service Warranty Repair Non-Warranty Repair I C S - 2 1 / 2 1 D T S P E A K E R S T A T I O N...
  • Page 4 I C S - 2 1 / 2 1 D T S P E A K E R S T A T I O N...

  • Page 5: Operation

    OPERATION DESCRIPTION The Clear-Com ICS-21/21DT speaker station is designed for use in theatres, live performances, industrial environments, and small television facilities. It features excellent speech intelligibility, even in high noise levels, and can be customized through its programmable options. The talk button operates in momentary mode. The integral microphone and •...

  • Page 6: Answer-Back Facility

    Call-Waiting Light This dual-function light: • is steadily lit when a call signal is received. • The ICS-21/21DT • flashes to indicate a call-waiting signal, which has priority over a call signal. features intercom and Answer-Back Button program-level controls.

  • Page 7: Intercom-Level Control

    Answering a Call from the Answer-Back Stack To answer a call from the answer-back stack: 1. Press and release the answer-back button to select the longest-waiting call. 2. Press the answer-back button while responding. The call-waiting light will be on steadily. Terminating Calls Answered with the Answer-Back Button •...

  • Page 8: Tone Alerts

    REMOTELY CONTROLLED OPERATION The ICS-21 can be programmed to be remotely controlled. This feature can be a benefit when the ICS-21 is used in a location where it is not possible for the • Remotely controlled person speaking on it to control it. This feature can also be used to remotely operation must be set up monitor locations.
  • Page 9 (LISTEN will automatically track.) 16. Select the LOCAL PEREFENCES tab. 17. Disable CALL SIGNAL TONES for ICS-21 label. (This is optional. It will prevent the four call-signal beeps from sounding each time you set a talk to the ICS-21 station.) 18.

  • Page 10: Internal Adjustments And Connections

    INTERNAL ADJUSTMENTS AND CONNECTIONS The controls and connectors inside the ICS-21/21DT are shown in Figure 2 on page 1-6. They can be adjusted without completely removing the panel from its wall box or DT-Box enclosure by removing the top two screws and loosening the bottom two screws a few turns.

  • Page 11: Remotely Controlled Operation (S1-2 And S1-3)

    Matrix station. Both switches completely turned off. must be in either the ON or OFF position. The ICS-21 will not function if S1-2 and S1-3 are in different positions. Matrix Connector (4) This eight-wire modular jack (RJ-45) provides an audio and data communications link to the Matrix system.

  • Page 12: Power Connection

    This connection is a better choice if the headset or speaker is mounted in hardware stores, but only a desktop box, such as a Clear-Com DT-Box, which is not located on a wall. the 16-VAC transformers 24- to 28-VDC Source are suitable in this case.
  • Page 13 1 - 9 I C S - 2 1 / 2 1 D T S P E A K E R S T A T I O N...

  • Page 14: Quick Start

    4. Connect 14- to 18-VAC power to the two-terminal, plug-on connector. 5. Install the ICS-21/21DT into the four-gang outlet box or DT-Box. • Note: When the station 6. Set listen levels (see “Intercom-Level Control” on page 3).
  • Page 15 • I C S - 2 1 / 2 1 D T S P E A K E R S T A T I O N...
  • Page 16 I C S - 2 1 / 2 1 D T S P E A K E R S T A T I O N...

  • Page 17: Installation

    INSTALLATION 1. Connect the 14- to 18-VAC power to the two-position terminal strip. Plug the • The ICS-21/21DT runs terminal strip onto the P2 as show in Figure 2 on page 1-6. on 14- to 18-VAC power. 2. Connect the eight-wire, modular RJ-45 connector to J1 as shown in Figure 2 on page 1-6.
  • Page 18 I C S - 2 1 / 2 1 D T S P E A K E R S T A T I O N...

  • Page 19: Maintenance

    2. An incompatibility 2. Contact the dealer or problem with the Clear-Com’s technical Matrix system. service. System operates Operating mode Refer to the section of incorrectly. The talk switches are set...
  • Page 20 SYMPTOM CAUSE SOLUTION Speaker does not 1.The intercom-level 1. Adjust control operate, but the talk knob is turned all the appropriately. light comes on when way down. talk button is pressed. 2.The speaker plug or 2. Make sure speaker is wiring has come loose.

  • Page 21: Technical Reference

    TECHNICAL REFERENCE Figure 5: ICS-21/21DT Block Diagram 4 - 3 I C S - 2 1 / 2 1 D T S P E A K E R S T A T I O N...
  • Page 22 Figure 6: Main PCB Component Layout 4 - 4 I C S - 2 1 / 2 1 D T S P E A K E R S T A T I O N...

  • Page 23: Ics-21/21Dt Main Pcb

    BILL OF MATERIALS ICS-21/21DT Main PCB CAPACITORS Value Type Volts Tol. Part # Designator 220 uF Aluminum 150021 C5 C18 Tantalum 150032 C21 C24 Aluminum NP 50V 150087 100 uF Aluminum 150136 C25 C45 Ceramic Disc 151116 Ceramic Disc 151120...
  • Page 24 10.0K OHM 1/10 411485 R8 R44 12.1K OHM 1/10 411502 R13 R33 20.0K OHM 1/10 411514 R12 R24 R32 33.2K OHM 1/10 411535 47.5K OHM 1/10 411550 R2 R4 68.1K OHM 1/10 411565 R35 R36 100K OHM 1/10 411581 R5 R21 121K OHM 1/10 411589...
  • Page 25 Figure 7: ICS-21/21DT Schematic (identical to Clear-Com’s KB-212 schematic) 4 - 7 I C S - 2 1 / 2 1 D T S P E A K E R S T A T I O N...

  • Page 26: Matrix Option Pcb

    16-18 ASSY #710533 CLEAR-COM COPYRIGHT (C) 1999 Figure 8: Matrix Option PCB Component Layout Matrix Option PCB CAPACITORS Value Type Volts Tol. Part # Designator Aluminum 150064 .022 uF Monolithic 150082 Monolithic 100V 150085 .0022 uF Monolithic 150108 100 uF...
  • Page 27 4.7K X 4 SIP ISOLATED 415008 100K X4 SIP ISOLATED 415014 DIODES AND TRANSISTORS Device Description Part # Designator Diode 1N4148 SIGNAL 10MA 75PIV 480000 Transistor TIP41 NPN 40V 6A TO-220 POWER 480099 Diode 1.5A 200V BRIDGE 480158 INTEGRATED CIRCUITS Device Description Part #...
  • Page 28 Figure 9: Matrix Option Schematic 4 - 1 0 I C S - 2 1 / 2 1 D T S P E A K E R S T A T I O N...

  • Page 29: Specifications

    SPECIFICATIONS Panel Microphone Pre-Amp Input Type Electret Pre-Amp Response Curve Frequency Response 250 Hz to 12 kHz, contoured for intelligibility Limiter Range 20 dB Speaker Amplifier Speaker Type 2.5 in. round, 16 ohm Power Output 2 W into 16 ohms Frequency Response 200 Hz to 15 kHz, ±3 dB Signal-to-Noise...
  • Page 30 4.06 lb. (1.83 kg) Notice About Specifications While Clear-Com makes every attempt to maintain the accuracy of the information contained in its product manuals, that information is subject to change without notice. Performance specifications included in this manual are design-center specifications and are included for customer guidance and to facilitate system installation.

  • Page 31: Clear-Com Limited Warranty

    This warranty is the sole and exclusive express warranty given with respect to warranty repairs are Clear-Com products. It is the responsibility of the user to determine before available. Contact the purchase that this product is suitable for the user's intended purpose.

  • Page 32: Non-Warranty Repair

    NON-WARRANTY REPAIR Equipment that is not under warranty must be sent prepaid to Clear-Com. If requested, an estimate of repair costs will be issued prior to service. Once repair is approved and repair of equipment is completed, the equipment will be shipped freight collect from the factory.

This manual is also suitable for:

Ics-21dt

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