Clear-Com ICS-21, ICS-21DT Instruction Manual

ICS-21/21DT

SPEAKER STATION

INSTRUCTION MANUAL

Matrix Plus 3 System Instruction Manual
2000 Clear-Com Intercom Systems
All Rights Reserved

Part Number 810263 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.

CONTENTS

OPERATION 1-1

Description 1-1
Operation 1-1

Front Pan el 1-1

Talk Button and Light 1-1
Answer-Back Facility 1-2
Intercom-Level Control 1-3
Program-Level Control 1-3
Integral Microphone 1-3
Tone Alerts 1-4
Remotely Controlled Operation 1-4

Internal Adjustments and Connections 1-6

Call-Alert Tone-Leve l C ontrol (1) 1-6
Minimum-Volume Control (2) 1-6
Option Switches (3) 1-6
Remotely Controlled Operation (S1-2 and S1-3) 1-7
Matrix Connector (4) 1-7
Program-Input Connector(5) 1-7
Power Connection (6) 1-8

QUICK START 2-1
INSTALLATION 3-1
MAINTENANCE 4-1

Troubleshooting Tips 4-1
Technical Reference 4-3
Component Layouts/Bills of Materials/Schematics 4-4

ICS-21/21 DT Main PCB 4-4
Matrix Option PCB 4-8

SPECIFICATIONS 5-1
CLEAR-COM LIMITED WARRANTY 6-1

Factory Service 6-1
Warrant y Repair 6-1
Non-War ranty Repair 6-2

ICS-21/21DT SPEAKER STATION

i

ICS-21/21DT SPEAKER STATION

1

OPERATION

DESCRIPTION

The Clear-Com ICS-21/21D T speaker stati on is designed for use in theatr es, live
performances , industrial environments, and small tele vision facilities. It features
excellent speech in telligibility, even in high noise levels, and can b e customized
through its programmab le options.

• The ICS-21/21DT offers
simple operation.

• Fully operational from the
front panel.

The talk button operates in momentary mod e. The integral microphone and
speaker offer half-duplex communication. The ICS-21/21DT offers both visible
and audible call signaling to attract the attention of operators.

A balanced program input allows the monitoring of external audio through the
speaker. This program input can also be used as a paging function.

The integral speaker’s volume level can be adjusted usi ng a fro nt- panel knob. An
internal control allows setting a minimum speaker level. An automatic speaker
switching circuit will quiet the speaker when the talk button i s activated.

The ICS-21/21DT is power ed local ly. In permanent wall installation s, a 16-VAC
doorbell transformer will provide a convenient source of power. In DT-Box
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. T he unit mounts either in a standard four-gang electrical
outlet box or in an optional Clear-Com DT -Box. The extra-thick front panel and
compact, surface-mounted circuitry results in a reduced size and lighter weight
package that maintains Clear-Com ruggedness. The Matrix frame connects to an
eight-wire modular jack.

OPERATION

Normal operation of the ICS-21/21DT speaker station only requires access to
the front-panel controls. The controls located elsewhere on the unit are intended
to be set-and-forget in n a ture. For intercom operatio n, set the intercom-level
control to the desired level and press the talk button when talking.

• Features include a talk
button, answer-back
facility, and pr ogr am-level
control.

ICS-21/21DT SPEAKER STATION

FRONT PANEL

The controls, indicators, and connectors on the ICS-21/21DT front panel are
shown in Figure 1 on page 1-2 and are described in the text that follows.

Talk Button and Light

This momentary-action button activates the panel microphone so that audio is
transmitted to the answer-back label or the programmed station/i n terface talk
label. This light must be on for audio to be transmitted. It lights when the talk
button is held.

1-1

ro

Intercom Level

Answer Back

Talk

Program Level

Mic

Call Waiting

• The answer-back facility
offers several features
including an answer-back
button, a call-waiting
light, and the ability to
answ er subsequent calls
from unselected labels.

• The ICS-21/21DT
features intercom and
program-level controls.

Figure 1: Front Panel

Answer-Back Facility

The answer-back facility answers calls from stations or interfaces that the station
has not currently selected.

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 programmed label when the call-waiting light is off.

• The internal microphone
provides hassle-free use.

1-2

• directs audio to the longest-waiting call in the call-waiting stack when the
call-waiting light is flas hing.

• 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 availa ble 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.

The label assigned to the station will never appear in the answer-back stack

Note:

and duplicate labels are never added.

ICS-21/21DT SPEAKER STATION

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.

• The call-waiting light does
not light when a call is
rece ived from a
programmed label.

• Note: The configuration
program can be set to
also send an audible
signal through the
speaker, whic h can only
be heard if the intercom
level is turned up.

Terminating Calls Answered with the Answer-Back Button

To terminate the call answered with the answer-back button, turn off th e
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 th e call, a call from an other unselected
label will be activated when the answer-back button is released.

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. Th e 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.

• Note: Forcing the
trimpots past their stop
points will damage them.

ICS-21/21DT SPEAKER STATION

Intercom-Level Control

This control sets the speaker’s required listen level, but does not affect the
program-input level.

Program-Level Control

This control sets the program input’s audio level in the panel speaker.

Integral Microphone

This microphone is built into the front panel.

1-3

Tone Alerts

Tone alerts are set through the configuration program. The station has the
following three tones:

TONE MEANING

• You can remotely control
the ICS-21 speaker
station.

• Remotely controlled
operation must be set up
both in the ICS-21 and in
the Matrix System.

Four rapid beeps Call signal

Two beeps Label change

Single beep Monitoring

Table 1: Tone Alerts

REMOTELY CONTROLLED OPERATION

The ICS-21 can be progr ammed to be r emotely contr olled. Th is featur e can be a
benefit when the ICS-21 is used in a location where it is not possible for the
person speaking on it to control it. This feature can also be used to remotely
monitor locations.

Remotely controlled operation must be enab led both in the ICS-21 and in the
Matrix System. To set remotely controlled operation in the ICS-21, use the
following steps:

1. Remove power from the ICS-21.

2. Remove or partially remove the ICS-21 from its outlet box or enclosure.

1-4

3. Set Option Switches S1-2 and S1-3 to the ON position, towards the front
panel. Refer to Figure 2.

4. Fasten the ICS-21 into its box or enclosure and reconnect power.

To set remotely controlled operation fo r the ICS-21 in the Matrix System, use
the following steps in PGM-WIN progr a m:

1. From the FILE menu, select ON-LINE TO MATRIX.

2. From the SETUP menu, select HARDWARE and LABELS. Assign labels to
the stations by clicking on the TALK LABEL for the port the station is
connected to and typing in the label you want the station to have. For this
example, the ICS-21 station will be named ICS21 and the master station will be
named 2003.

3. Select the ATTACHMENTS tab.

4. Click on the ROUTES button.

ICS-21/21DT SPEAKER STATION

5. Click on EDIT SOURCE-DESTINATION.

6. Highlight the ICS21 label. Click on route SOURCE.

7. Highlight the 2003 label. Click on route DESTINATION.

8. Click on END EDITS.

9. Select the ACTIVATE WITH LISTEN check box and the AVAILABLE
check box.

10. From the CONFIGURE menu, select ATTACHMENTS.

• Control the ICS-21
speaker station remotely
when the operator needs
to be hands-free.

11. Click the STATION button and double-click ICS21.

12. Click on ROUTE 1. This will move the route from the left window to the
right.

13. Click the KEY ASSIGNMENTS tab.

14. Double-click the 2003 label and click on the desired Talk key. This will
place the ICS21 label on that key's talk and listen.

15. Click SELECT NEW and double-click ICS21. Select 2003 by highlighting
it and then click on the white box below TALK near the graphic of the station.
(LISTEN will automatically track.)

16. Select the LOCAL PEREFENCES tab.

17. Disable CAL L SIGN AL T O NES fo r 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. Select the GLOBAL ADVANCED tab.

19. Select the AUTO-SIGNAL check box for the ICS21 label.

20. Click APPLY.

ICS-21/21DT SPEAKER STATION

1-5

• The station’s internal
controls provide the
ability to customize the
ICS-21/21DT to
numerous applications.

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 D T-Box e n c l os ure by re moving the t op t w o screws and l oo se n ing the
bottom two screws a few turns. The panel can then be tilted out from the wall to
make the controls accessible as shown in the lower view of Figure 2 on page 1-6.

VIEW FROM TOP OF

ICS-21

3

OPTION SWITCHES

POWER CONNECTION

6

321

1

CALL ALERT TONE LEVEL CONTROL

4

2

MINIMUM VOLUME CONTROL

PROGRAM INPUT

5

MATRIX CONNECTOR

FRONT PANEL

• An RJ-45 provides audio
and data communications
to the Matrix frame.

1-6

Figure 2: Internal Controls

Call-Alert Tone-Level Control (1)

This control must be disabled by turning the control fully counterclockwise.

Minimum-Volume Control (2)

This control adjusts the minimum setting of the intercom-level control on the
front panel. This is normally adjusted when the system is set up and shouldn’t
need to be adjusted during normal operation. This feature can be disabled by
turning the control fully counterclockwise.

Option Switches (3)

Of the three option switches, only S1-1 should be configured when the system is
set up, and should not be changed in normal operation. The other two switches
(S1-2 and S1-3) should remain in the off position. The ON position of each
switch is toward the circuit board and the OFF position is toward the front
panel.

ICS-21/21DT SPEAKER STATION