Clear-Com ICS-24 Manuel utilisateur

HEADSET STATION

INSTRUCTION MANUAL

ICS-24

Matrix Plus 3 System Instruction Manual

2000 Clear-Com Intercom Systems

Part Number 810265 Rev. A

Clear-Com Intercom Systems

4065 Hollis Street

Emeryville, CA 94608-3505

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.

MS-DOS is a registered trademark of Microsoft Corp.

Windows and Windows NT are registered trademarks of Microsoft Corp.

ICS-24 HEATSET STATION i

CONTENTS

OPERATION 1-1

Description 1-1

Operation 1-1

Front Panel 1-1

Talk Button and Light 1-2

Answer-Back Facility 1-3

Tone Alerts 1-4

Intercom-Level Control 1-4

Sidetone Control 1-4

Talk/Listen Switch 1-4

Headset Connector 1-5

Internal Adjustments and Connections 1-6

Option Jumpers (1) 1-6

Power Connection (2) 1-6

Matrix Connector (3) 1-7

QUICK START 2-1

INSTALLATION 3-1

MAINTENANCE 4-1

Troubleshooting Tips 4-1

Technical Reference 4-3

Component Layouts/Bills of Materials/Schematics

ICS-24 Main PCB and Chassis 4-4

Matrix Option PCB 4-8

SPECIFICATIONS 5-1

CLEAR-COM LIMITED WARRANTY 6-1

Factory Service 6-1

Warranty Repair 6-2

Non-Warranty Repair 6-2

ICS-24 HEATSET STATION

ICS-24 HEATSET STATION 1-1

OPERATION

DESCRIPTION

The Clear-Com ICS-24 headset stations are ideal for use in theatres, live

performances, industrial environments, and small television facilities. They

feature excellent speech intelligibility in all noise levels and can be customized

through their programmable options.

Selectable talking and/or listening allows the operator to communicate on one of

four talk/listen paths. The dual-action talk button operates in electronic

momentary or latching mode. The ICS-24 offers visible call and answer-back

signaling to attract the attention of operators.

The ICS-24 station accepts dynamic headsets, such as the Clear-Com PL-Pro™

or the HS-6 Telephone Headset Series. A sidetone control allows the operator to

vary the level of his voice heard in the headset.

The ICS-24 mounts in a standard two-gang electrical outlet box. The extra-thick

front panel and compact, surface-mounted circuitry results in a small size and

lighter weight package that maintains Clear-Com ruggedness. The ICS-24

connects to the Matrix frame with an RJ-45 connector.

The ICS-24 must be powered locally. In permanent wall installations, a 16-VAC

doorbell transformer will provide a convenient source of power. In other

installations, a 14- to 18-VAC wall-mounted transformer will suffice. The

connections to this transformer are made to the circuit board’s two-terminal,

plug-on connector.

OPERATION

Normal operation of the ICS-24 headset station only requires the front-panel

controls. For intercom operation, set the intercom-level control to the desired

level and press the talk button when talking. Set the sidetone control for the

desired amount of sidetone in the earphone.

FRONT PANEL

The controls, indicators, and connectors found on the ICS-24 front panel are

shown in Figure 1 on page 1-2 and are described in the text that follows.

• The ICS-24 offers

selectable, talking and/or

listening paths.

• The station must be

powered locally.

ICS-24 HEATSET STATION

1-2

Figure 1: Front Panel

Talk Button and Light

The talk button transmits the headset microphone audio to the selected talk/

listen path. The button has a dual action (momentary or latching) depending

upon how the button is pressed. If desired, the latching function can be defeated

in the Matrix configuration program. The following describes the various

functions of this button:

• Momentary—Press and hold the talk button while speaking. Release it when

finished.

• Latching—Press and release the button quickly to latch the talk function. Press

and release the button again to turn off the talk function.

• Talk Indication—The associated talk lamp will illuminate green when the talk

function is activated.

Answer-Back Facility

The answer-back facility answers calls from stations or interfaces that the station

has not currently selected.

Intercom Level

Talk/Listen Select

Answer Back

Talk

Sidetone

Call Waiting

• Appropriately setting the

sidetone level decreases

confusion, especially in

loud environments.

• The talk button has two

functions.

ICS-24 HEATSET STATION 1-3

Call-Waiting Light

This dual-function light:

• is steadily lit when a call signal is received.

• flashes to indicate a call-waiting signal, which has priority over a call signal.

Answer-Back Button

This three-function button:

• sends a call signal to the selected, programmed label when the call-waiting

light is off.

• directs audio to the longest-waiting call in the call-waiting stack when the

call-waiting light is flashing.

• ends the current conversation from the call-waiting stack when the

call-waiting light is steadily on.

Answer-Back Stack

The answer-back stack tracks incoming calls from any label that is not assigned

to the station. These calls are available in the order they were received. The

length of time the calls are available before they are automatically removed is set

in the configuration program.

Note: The label programmed to and selected by the station will never appear in

the answer-back stack and duplicate labels are never added.

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

To terminate the call answered with the answer-back button, turn off the

call-waiting light, and recover the previous call:

• The receiving station can terminate the call by pressing and releasing the

answer-back button.

• The calling station can terminate the call.

Answering Another Call from the Answer-Back Stack

To answer another call from the answer-back stack:

• If the calling station disconnected the call, the call-waiting light will flash.

• If the receiving station disconnected the call, a call from another unselected

label will be activated when the answer-back button is released.

•Note: The call-waiting

light does not light when

a call is received from a

programmed label.

• Thestation’sanswer-back

feature offers a number

of functions.

• A tone alert is provided to

ensure call signals are

noticed.

ICS-24 HEATSET STATION

1-4

Sending a Call Signal

The answer-back button can send call signals to a station or interface currently

on the selected talk/listen path when the call-waiting light is not on. The light

will turn on when the button is pressed and turn off when it is released.

Receiving a Call Signal

The call-waiting light turns on when another station sends a call signal and

remains on during the call.

Tone Alerts

Tone alerts are set through the configuration program. The station has the

following three tones:

Table 1: Tone Alerts

Intercom-Level Control

Turn this control to set the listen level required on the headset.

Sidetone Control

Sidetone is the level of the operator’s voice heard while talking on the intercom.

Setting a comfortable level of sidetone will ensure that the intercom line sounds

alive and also helps modulate the operator’s voice relative to other voices on the

line.

Talk/Listen Switch

This switch selects the intercom label (A, B, C, or D) on which the ICS-24

station is active.

TONE MEANING

Four rapid beeps Call signal

Two beeps Label change

Single beep Monitoring

•Note: The configuration

program can be set to

also send an audible

signal through the

speaker, which can only

be heard if the intercom

level is turned up.

• A number of controls are

available to adjust the

station’s audio levels.

•Note: Do not force the

trimpot past its stop

points. This will damage

it.

ICS-24 HEATSET STATION 1-5

Headset Connector

The headset connector is located on the front panel. All Clear-Com headsets are

recommended for use with the ICS-24. The Clear-Com PT-4 Push-to-Talk

Microphone or the HS-6 Telephone Handset will also plug into the headset

connector. The following is a description of the characteristics of a suitable

headset:

• Mic Type—Dynamic; 150 to 400 ohms impedance; -55 dB output level.

• Headphone—Dynamic; 50 to 2000 ohms impedance.

The wiring of the headset is to be as follows:

Table 2: Headset Wiring

The microphone and headphone wiring in the headset cord must be individually

shielded.

PIN NUMBER FUNCTION

1 Microphone ground

2Microphonehot

3Headphoneground

4 Headphone hot

•Note: Do not connect

Pins 1 and 3 together.

Headset extension cords

or headset “Y” cables are

not recommended

because they may

increase crosstalk

between channels.

ICS-24 HEATSET STATION

1-6

INTERNAL ADJUSTMENTS AND CONNECTIONS

The connectors found inside the ICS-24 are shown in the following figure and

described by the following text.

Figure 2: Internal Adjustments and Connections

Option Jumpers (1)

The option jumpers in the ICS-24 are not used. Options are configured in the

Matrix.

Power Connection (2)

The station requires local power, which can come from various sources,

including:

16-VAC Doorbell Transformer

A doorbell transformer can be attached to a separate box containing the

power-line connection and the low-voltage 16-VAC secondary can be routed to

the connector on the circuit board. This connection is especially useful if the

headset station is installed in a wall.

VIEW FROM TOP

OF ICS-24

FRONT PANEL

MATRIX CONNECTOR POWER CONNECTION

OPTION JUMPERS

• Three power sources are

available for the station.

•Note: Both 10-VAC and

16-VAC doorbell

transformers are

commonly available at

hardware stores, but only

the 16-VAC transformers

are suitable in this case.

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