Clear-Com ICS-22 User Manual

CLEAR-COM ECLIPSE

ICS-22

SPEAKER PANEL

INSTRUCTION MANUAL

ICS-22 Speaker Panel Instruction Manual
© 2000, 2008 Vitec Group Communications Ltd. All Rights Reserved.

Part Number 810264Z Rev. 2
Vitec Group Communications LLC

850 Marina Village Parkway
Alameda, CA 94501
U.S.A

Vitec Group Communications Ltd
7400 Beach Drive
IQ Cambridge
Cambridgeshire
United Kingdom
CB25 9TP

Vitec Group Communications
Room 1806, Hua Bin Building
No. 8 Yong An Dong Li
Jian Guo Men Wai Ave
Chao Yang District
Beijing, P.R. China 100022

® Clear-Com, CellCom/FreeSpeak and the Clear-Com Communications Systems logo are registered trademarks of
The Vitec Group plc.

CONTENTS

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

ECS System Configuration for ICS-22 Panels . . . . . . . . . . . . . . .1-2

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Talk Button and Light. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Answer-Back Facility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Call-Waiting Light. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Answer-Back Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Answer-Back Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Answering a Call from the Answer-Back Stack . . . . . . . . . . .1-4

Terminating Calls Answered with the Answer-Back Button. .1-4

Answering Another Call from the Answer-Back Stack. . . . . .1-5

Sending a Call Signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

Receiving a Call Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

Tone Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

Intercom-Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

Sidetone Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

Program-Level Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

Speaker ON/OFF Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

Mic-Select Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

Talk/Listen Select Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

Headset Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

Panel-Mic Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

VOX Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

Internal Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

Call-Alert Tone-Level Control (1). . . . . . . . . . . . . . . . . . . . . . . .1-8

Option Switches (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8

Matrix Connector (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8

Program-Input Connector (4). . . . . . . . . . . . . . . . . . . . . . . . . . .1-8

Power Connection (5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9

16-VAC Doorbell Transformer . . . . . . . . . . . . . . . . . . . . . . . .1-9

14-VAC Wall-Mounted Power Supply . . . . . . . . . . . . . . . . . .1-9

24- to 28-VDC Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9

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ICS-22 Speaker Panel Instruction Manual

i

QUICK START. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Troubleshooting tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Technical Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

Bills of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

ICS-22 Main PCB (Part No. 710470). . . . . . . . . . . . . . . . . . . . .4-6

ICS-22 VOX PCB (Part No. 710472). . . . . . . . . . . . . . . . . . . .4-11

Matrix Option PCB (Part No. 710533) . . . . . . . . . . . . . . . . . . .4-15

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

LIMITED WARRANTY. . . . . . . . . . . . . . . . . . . . . . . W-I

Warranty Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .W-i

Technical Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .W-i

Warranty Repairs and Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . W-ii

Non-Warranty Repairs and Returns . . . . . . . . . . . . . . . . . . . . . . . . W-ii

Extended Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . W-ii

Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . W-iii

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ICS-22 Speaker Panel Instruction Manual

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Please read and follow
these instructions
before operating a
ICS-22 speaker panel.

IMPORTANT SAFETY
INSTRUCTIONS

For your safety, it is important to read and follow these
instructions before operating a ICS-22 speaker panel:

(1) WARNING: To reduce the risk of fire or electric shock, do not
expose a ICS-22 speaker panel to rain or moisture. Do not operate a
ICS-22 speaker panel near water, or place objects containing liquid on
it. Do not expose a ICS-22 speaker panel to splashing or dripping
water.

(2) For proper ventilation, make sure ventilation openings are not
blocked. Install the ICS-22 speaker panel according to the directions in
the Installation chapter of this manual.

(3) Do not install a ICS-22 speaker panel near a heat source such as a
radiator, heat register, stove, or other apparatus (including amplifiers)
that produces heat. Do not place naked flame sources such as candles
on or near a ICS-22 speaker panel.

(4) Only use attachments/accessories specified by Clear-Com
Intercom Systems.

(5) Unplug the ICS-22 speaker panel during lightning storms or when
unused for long periods of time.

(6) Refer all servicing to qualified service personnel. Servicing is
required when:

• The ICS-22 speaker panel has been damaged in any way.

• Liquid has been spilled or objects have fallen into the ICS-22
speaker panel chassis.

• The ICS-22 speaker panel has been exposed to rain or moisture.

• The ICS-22 speaker panel does not operate normally.

• The ICS-22 speaker panel has been dropped.

Please familiarize yourself with the safety symbols in Figure 1. When
you see these symbols on a ICS-22 speaker panel, they warn you of
the potential danger of electric shock if the ICS-22 speaker panel is
used improperly. They also refer you to important operating and
maintenance instructions in the manual.

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ICS-22 Speaker Panel Instruction Manual

iii

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 main­tenance instructions are included in the literature accompanying
this product.

Figure 1: Safety Symbols

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1

• The ICS-22 is a
two-channel speaker
panel.

OPERATION

DESCRIPTION

The Clear-Com ICS-22 is a two-channel speaker panel 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.

In addition, the ICS-22 contains a jack for an optional Clear-Com
gooseneck panel microphone and a close-in, voice-operated circuit
(VOX). This circuit allows automatic, alternate dipping of the panel
microphone and the speaker in response to conversation.

Selectable talking and/or listening allows the operator to communicate
on two talk/listen paths. The dual-action talk button operates in
electronic momentary or latching mode. Monitoring can be done
through the headset, the integral speaker, or both simultaneously . The
ICS-22 offers both visible and audible call signaling to attract the
attention of operators.

• The panel must be
powered locally.

• Users can install the
panel in Clear-Com’s
DT-Box.

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

The ICS-22 speaker panel accepts dynamic headsets, such as the
Clear-Com PL-Pro

Push-to-Talk Hand Microphone. A sidetone control allows the operator
to vary the level of his voice heard through the headset and speaker.

The integral speaker can be turned on or off by a convenient
front-panel switch. An automatic speaker dipping circuit will lower the
level of the speaker whenever the talk button is activated. The
ICS-22’s close-in VOX dips the speaker or gooseneck microphone
automatically as the panel is used. These features help minimize
acoustical feedback.

The ICS-22 will need to be powered locally. In permanent wall
installations, 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.

The unit mounts either in a standard USA 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.

™

Series HS-6 Telephone Handset, or PT-4

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ICS-22 Speaker Panel Instruction Manual

1-1

OPERATION

Normal operation of the ICS-22 speaker panel only requires the front
panel controls. For intercom operation, set the intercom level control to
the desired level and press the talk button when t alking. If a headse t or
handset is used, set the sidetone control for each channel for the
desired amount of sidetone in the earphone. If the PT-4 hand-held,
push-to-talk microphone is used, or if the panel microphone is used,
set the sidetone controls for minimum feed-through to the speaker to
prevent acoustic feedback.

ECS System Configuration for ICS-22 Panels

The Eclipse Configuration System (ECS) software does not directly
support the ICS-22 speaker panel. In order to configure an ICS-22
panel the port is configured to drive an ICS-1008 panel with 14 keys (7
pairs of buttons). The two ICS-22 selectors are mapped onto the
ICS-1008 keys starting from the left. Only the leftmost two pairs of
keys on the ICS-1008 can be used to program the ICS-22; any other
keys on the ICS-1008 will have no effect.

There must be a corresponding listen key on the top row to the talk key
on the bottom row of the ICS-1008 configuration for the ICS-22 panel
to work correctly. If a talk key only is configured on the ICS-1008 in
ECS the Talk key on the ICS-22 will not latch.

It should be noted that the panel signalling and control protocol used
by the Eclipse matrix differs from the Matrix Plus 3. As a result the
operation of these panels with an Eclipse matrix may be slightly
different to their operation with a Matrix Plus 3.

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FRONT PANEL

• Appropriately setting
the sidetone level
decreases confusion,
especially in loud
environments.

• The talk button has
five functions.

The controls, indicators, and connectors on the ICS-22 front panels a re
shown below and are described in the text that follows.

BA

VOX

Panel Mic

Headset

Sidetone

Call Waiting

Answer Back

Talk

Talk/Listen Select

Intercom Level

Program Level

Off On

Speaker

Figure 1-1: ICS-22 Front Panel

Talk Button and Light

This button transmits the headset or gooseneck microphone audio to
the selected talk/listen panel/interface or the answer-back label. The
talk button has a dual action (momentary or latching) depending upon
how the button is pressed. The Talk button Latch/Non-Latching
operation cannot be defeated in ECS even for latch disabled labels.

The following describes the various functions of this button:

• Momentary—Press and hold the talk button while speaking.
Release it when finished. The light will be illuminated when the
button is pressed.

• Latching—Press and release the button quickly to latch the talk
function. Press and release the button again to turn off the talk
function. The light will be illuminated while the button is latched.

• Talk indication—The associated talk light will illuminate green
when the talk function is activated.

• VOX indication—When the VOX feature is enabled, the talk light
will illuminate green when the talk function is activated, but will
turn red when the panel microphone is in use. This automatically
dips the speaker volume.

• Speaker dip—If the front-p anel speaker is turned on and the VOX
feature is not used, pressing the talk button will reduce the
speaker output level to avoid feedback.

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ICS-22 Speaker Panel Instruction Manual

1-3

• Note: The
call-waiting light does
not light when a call
is received from a
programmed label.

Answer-Back Facility

The answer-back facility answers calls from panels or interfaces that
the panel 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 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

• The panel’s
answer-back feature
offers a number of
functions.

• A tone alert is
provided to ensure
call signals are
noticed.

• 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 panel. 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 panel 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 a call answered with the answer-back button, turn off the
call waiting light, and recover the previous call:

• The receiving panel can terminate the call by pressing and
releasing the answer-back button.

1-4

• The calling panel can terminate the call.

ICS-22 Speaker Panel Instruction Manual

Vitec Group Communications

• 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.

Answering Another Call from the Answer-Back Stack

To answer another call from the answer-back stack:

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

• If the receiving panel disconnected the call, a call from another
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 panel 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 panel sends a call signal
and remains on during the call.

Tone Alerts

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

• A number of controls
are available to
adjust the panel’s
audio levels.

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

Tone Meaning

Four rapid beeps Call signal
Two beeps Label change
Single beep Monitoring

Table 1-1: ICS-22 Tone Alerts

Intercom-Level Control

This control sets the listen level required on the speaker or headset. It
does not affect the program-input level.

Sidetone Control

This knob adjusts the level of the operator’s voice that is 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.

Typically, different sidetone settings are needed depending upon
whether the speaker is used. Turn the knob clockwise to increase the
sidetone and counterclockwise to decrease it. Minimum sidetone is
recommended when the speaker is used.

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ICS-22 Speaker Panel Instruction Manual

1-5

• The VOX feature
provides operators
with a voice activated
option.

Program-Level Control

This control sets the program input audio level heard in the headset or
panel speaker.

Speaker ON/OFF Switch

This switch turns the front-panel speaker on or off. It also controls
whether the tone alert is heard through the speaker. The speaker
volume will automatically dip when the talk function is set, unless the
VOX function is enabled.

Mic-Select Switch

This switch selects whether the panel microphone or the headset
microphone is active. When the VOX feature is enabled, it is only
operational when the panel microphone is active.

Talk/Listen Select Switch

This switch selects the panel/interface label (A or B) for
communication.

Headset Connector

• 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.

This connector is located on the front panel. All Clear-Com headsets
are recommended for use with the ICS-22. The Clear-Com PT-4
Push-to-Talk Microphone or the HS-6 T elephone 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:

Pin Number Description

1 Microphone ground (shield)
2 Microphone hot
3 Headphone ground
4 Headphone hot

Table 1-2: ICS-22 Headset Wiring

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

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• To install a GM-9 or
GM-18 microphone
there are four steps.

• The VOX control is
located to the right of
the panel microphone
connector and is
recessed slightly into
the front panel.

Panel-Mic Connector

Clear-Com recommends that the GM-9 (9-in. long) and GM-18 (18-in.
long) plug-in panel microphones be used with the ICS-22. Both are the
electret type. The 1/4-in. phone jack on the microphone mates with the
panel-mic receptacle on the ICS-22’s front panel.

To install a GM-9 or GM-18 microphone:

1. Remove the plastic plug from the jack, if present.

2. If a set screw is present in the microphone-mounting flange, check
and unscrew it to make sure it is clear of the threads in the bushing.

3. Screw the microphone into the bushing and tighten.

4. Optional: Replace the set screw supplied with the gooseneck
microphone on top of the microphone-mounting flange and turn it
clockwise to lock the microphone in place.

VOX Control

When the panel microphone is selected on the ICS-22, the VOX
control should be adjusted for proper operation. This control is located
to the right of the panel microphone connector and is recesse d slightly
into the front panel. Use a narrow, flat-bladed screwdriver such as a
“greenie” or “tweaker” for this adjustment. When the adjustment is
correctly set, the talk lamp will be red when speaking into the panel
microphone and will be green when hearing audio from the speaker.
Turning the control clockwise makes the ICS-22 more sensitive. The
VOX feature can be disabled by turning the VOX control fully
counterclockwise.

INTERNAL CONNECTIONS

These controls are not to be adjusted on this panel, but are set as
follows:

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ICS-22 Speaker Panel Instruction Manual

1-7

• There are five internal
connections.

• Option switches
should not be
changed from their
factory settings.

4

MATRIX CONNECTOR

VIEW FROM TOP
OF ICS-22

CALL ALERT TONE LEVEL CONTROL

POWER CONNECTION

1

321

5

3

2

OPTION SWITCHES

Figure 1-2: Internal Adjustments and Connections

Call-Alert Tone-Level Control (1)

PROGRAM INPUT

FRONT PANEL

• Note: The ON
position of each
option switch is
toward the circuit
board and the OFF
position is toward the
front panel. The
default position of the
switches is the OFF
position.

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

Option Switches (2)

The three option switches are set to the OFF position by the factory
and should not be changed.

Matrix Connector (3)

This eight-wire modular jack (RJ-45) provides an audio and data
communications link to the Matrix system.

Program-Input Connector (4)

A three-terminal, plug-on connector provides the program input to the
panel. Program is fed to the headset and speaker. The level to the
speaker or headset is controlled by the program-level control. The
program-input connector accepts a balanced or unbalanced line-level
audio signal from -20 dBu to +10 dBu. If this input is connected to the
stage announce (SA) output of a main panel it can be used as a paging
input. Since the level of this input is independently adjustable from the
intercom audio volume, it can be used to override the intercom audio.

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The pinout of this connector is as follows:

• The Program Input
can be set between

-20 dBu to +10 dBu.

• The panel can obtain
power from three
different sources.

• 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.The panel can
obtain power from
three different
sources.

Pin Number Function

1 Ground (Shield)
2 Positive Signal
3 Negative Signal

Table 1-3: ICS-22 XLR Pinout Information

PIN 1

ICS-22 PROGRAM
INPUT CONNECTOR

2

3

1

XLR CONNECTOR

Figure 1-3: ICS-22 Program-Input Cable Wiring

Power Connection (5)

The panel 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 can be routed
to the connector on the EB7-4W circuit board. This connection is
especially useful if the headset or speaker panel is installed in a wall.

14-VAC Wall-Mounted Power Supply

A Clear-Com wall-mounted power supply (part number 400008) can
be used for powering the panel from 120 VAC. (Use part number
400011 for 220 VAC power.) This connection is a better choice if the
headset or speaker is mounted in a desktop box, such as a Clear-Com
DT-Box, which is not located on a wall.

24- to 28-VDC Source

The headset or speaker panel can be powered from a DC source, such
as batteries.

Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual

To connect the selected power supply:

1. Connect the two wires from the power source to the two-position,
plug-on terminal strip.

2. Plug this connector onto the circuit board as shown in Figure 1-2 on
page 1-8.

1-9

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2

• Users can use the
“Quick Start”
approach to get their
panels up and
running in minutes.

• Note: When the
panel is initially
powered, the
call-waiting lamp will
blink slowly indicating
the panel is
attempting to
communicate with the
Matrix frame. Once
communication is
established, the
blinking will stop.

QUICK START

1. Unpack the unit and inspect it for any damage that may have
occurred during shipping.

2. Set the option switches to the default (up) position.

3. Connect the RJ-45 connector to the Matrix frame.

4. Connect 14- to18-VAC power to the two-terminal, plug-on
connector.

5. Install the ICS-22 into the USA standard four-gang outlet box.

6. Set listen levels and sidetones (see Figure 1-2 on page 1-8).

7. The speaker panel should now be operating properly.

8. Read the rest of this manual for further information.

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ICS-22 Speaker Panel Instruction Manual

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3

• The ICS-22 runs on
14- to 18-VAC power.

• Note: If the panel is
installed in a DT-Box,
the back cover of the
DT-Box must first be
removed. It is
retained with four
screws. Feed the
power cable through
one slot and fasten it
to the strain relief as
shown in Figure 1-2.

INSTALLATION

1. Connect the 14- to 18-VAC power to the two-position terminal strip.
Plug the terminal strip onto the P2 as shown in Figure 1-2 on page
1-6.

2. Connect the eight-wire, modular RJ-45 connector to J1 as shown in
Figure 1-2 on page 1-6.

3. If the RJ-45 Matrix connector should need to be unplugged, use the
following procedure:

1. Remove power from the panel.

2. If the panel is installed in a DT -Box, remove the front p anel. It is
retained with four screws.

3. Using long-nosed pliers, grasp the top and bottom of the plug so
that the retaining clip will be depressed. Pull the plug out with the
pliers.

• Removing the RJ-45
Matrix connector
requires three steps.

• Note: If the panel is
installed in a DT-Box,
the back cover of the
DT-Box must first be
removed. Feed the
Matrix cable through
one slot and fasten it
to the strain relief as
shown in Figure 3-1
at right.

Figure 3-1: ICS-22 DT-Box Wiring

Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual

3-1

3-2

ICS-22 Speaker Panel Instruction Manual

Vitec Group Communications

4

• Sometimes when the
talk light doesn’t work
it’s because the panel
isn’t receiving power.

• When the system
doesn’t operate,
make sure there isn’t
an incompatibility
problem.

MAINTENANCE

TROUBLESHOOTING TIPS

Listed below are some of the more common problems the panel may
experience, their possible causes, and suggested solutions.

Symptom Cause Solution

System does not
operate and the talk
light does not turn on
when talk button is
pressed.

System does not
operate and the call
waiting light blinks
slowly.

System does not
operate and the call
waiting light blinks
quickly.

Speaker does not
operate, but the talk
light comes on when
talk button is pressed.

Hum or buzz in
system.

1. The panel is not
receiving 14- to
16-VAC power.

2. The panel has an
has an internal failure.

Communication with
the system is lost.

An incompatibility
problem with the
Matrix system.

1. The speaker knob is
turned all the way
down.

2. The speaker plug or
wiring has come loose.

Inductive pickup
caused by close
proximity of this
speaker panel or
connected panels to
power lines or
transformers.

1. Check the circuit
powering the panel
and make sure all plug
connections are
secure.

2. The panel requires
servicing.

Make sure each
eight-wire, modular
connector is securely
plugged in, check the
wiring, and ensure that
the Matrix system is
turned on.

Contact the dealer or
Clear-Com’s technical
service.

1. Adjust control
appropriately.

2. Make sure speaker
is connected internally.

Relocate the offending
unit or wiring.

Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual

4-1

Symptom Cause Solution

• System feedback can
have three different
causes.

• VOX problems can
be caused by
incorrect sensitivity
settings.

• Note: VOX is
intended for close-in
operation.

System feedback
(acoustical).

1. The intercom-level
control at this panel or
another panel is set
too high.

2. The sidetone control
at the panel or another
panel is incorrectly
adjusted.

3. A headset extension
cord was used.

VOX problems. 1. VOX stays tripped

(red light on); the
sensitivity is set too
high.

2. VOX will not trip
when speaking (green
light on); the sensitivity
is set too low.

The program signal
sounds distorted.

1. The program-level
control is set too high.

2. The program-input
circuit is overloaded.

Rapid clicking noise. 1. Defective wiring or

connectors.

2. Defective IC1 on
710533 assembly.

1. Adjust.

2. Adjust (see Figure
1-1 on page 1-2).

3. Remove the
extension cord
because its use is not
recommended.

1. Turn the VOX
sensitivity control
counterclockwise.

2. Turn the VOX
sensitivity control
clockwise.

1. Turn the
program-level control
counterclockwise.

2. Reduce the gain of
the program signal at
the source, such as an
audio mixer.

1. Repair/replace
wiring or connectors.

2. Replace IC1.

4-2

ICS-22 Speaker Panel Instruction Manual

Vitec Group Communications

TECHNICAL REFERENCE

Speaker

On/Off

Speaker

Volume

Intercom

Null

Sidetone

Input

Program

Output

Headset

Dip

Speaker

Balanced

Mute

Program

Program

Level

Answer

Call

Light

Waiting

Back

Receive

Call Send &

Matrix

Connector

VOX

LIM

EQ/

Mute

Mic Dip /

Mic Select

Mic

Headset

Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual

Panel

Mic

RMK

Red /

Talk

Green

Microprocessor

A

Talk/Listen

Select Switch

B

Talk/

VOX

Figure 4-1: ICS-22 Block Diagram

Microprocessor

Powe r

Rectifier

16 VAC

Matrix

Interface

4-3

BLANK PAGE

4-4

ICS-22 Speaker Panel Instruction Manual

Vitec Group Communications

R32

IC11

R44

S5

S4

C44

C42

J1

R53

R46

C24

R36

C32

R31

R11

C9

D1

D4

C6

P7

R2

C4

P5

C28

C28

R21

R25

R23

C1

C22

C38

D5

R35

W3

W4

D6

IC9

J2

Q2

R19

IC1

R4

D3

W1

W2

C46

C2

R12

C13

R52

C14

Q3

R18

R22

R16

R17

R13

Q1

C15

C7

R14

C10

C19

R30

C11

IC2

C41

R20

C23

C5

C16

R3

C26

R28

P9

C18

R26

IC10

R9

C34

R45

R10

C37

D15

R24

R6

C31

C47

C35

R39

C29
R38

S3

S2

C17

R7

P1

C8

D10

D12

D2

D9

D16

S1

D11

D13

J3

P6

C21

C40

D7

R37

R48

R50

R41

C12

R15

C27

D8

R47

R51

R8

R34

C30

C39

R43

Q4

IC8

IC5

R54

C25

C43

C45

R27

C20

R29

R33

R40

C33

R49

R42

C36

P3

P2

D14

Q5

R1

P5

D1

R2

D3

D4

Q2

R19

C12

C21

R50

C8

C11

C26

C10

C27

C4

R4

R13

C15

IC1

C18

C19

R30

IC11

C43

R15

R41

R33

D16

P7

R12

W2

C16

C40

D5

C41

R3

Q4

S1

C23

R51

R47

C33

W1

D7

R32

R43

C36

C46

C2

R40

C13

R52

J2

R20

IC2

C5

R28

C24

C42

R8

D8

J3

R34

C39

IC8

C30

R37

R49

R42

C1

W3

W4

CLEAR-COM

R23

C22

R21

R25

R35

D6

1

S4

COPYRIGHT (C) 1999

C38

D11

P6

D13

ASSY #710470

P3

C6

C9

Q1

R16

R17

C7

C14

R18

Q3

R22

R14

C32

IC9

R27

IC5

P9

S5

R29

R44

R54

P1

R11

D12

R31

R36

R7

R39

C44

D14

Q5

R1

R10

C34

R53

R9

IC10

C37

R45

R26

R24

R6

D15

1

R46

C25

C45

C20

R48

D10

D2

P2

D9

C29
R38

C35

C47

C31

CALL ALERT TONE LEVEL

S3

C17

J1

S2

Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual

Figure 4-2: Main PCB Component Layout (part no. 710470)

4-5

BILLS OF MATERIALS

ICS-22 Main PCB (Part No. 710470)

CAPACITORS

Designator Description Qty

C8 C47 220 uF Aluminum 35V 2
C1 .01 uF Ceramic Disc 1.4KV 20% 1
C28 22 uF Tantalum 16V 1
C6 4.7 uF Tantalum 35V 1
C11 4.7 uF Aluminum NP 50V 1
C24 .047 uF Mylar 100V 5% 1
C17 C41 100 uF Aluminum 35V 2
C14 22 pF Ceramic SMD 50V 5% 1
C5 C19 C27 C30 47 pF Ceramic SMD 50V 5% 4
C26 220 pF Ceramic SMD 50V 5% 1
C7 C46 470 pF Ceramic SMD 50V 5% 2
C16 .0022 uF Ceramic SMD 50V

10%

C9 C20 C22 .0047 uF Ceramic SMD 50V

10%
C13 C37 C38 C40 C31 C29 .01 uF Ceramic SMD 50V 10% 6
C18 C35 .047 uF Ceramic SMD 50V 10% 2
C10 C25 C32 C33 C34 C36

C45
C15 C21 C23 .22 uF Ceramic SMD 50V 10% 3
C44 C39 .47 uF Tantalum SMD 35V 10% 2
C2 C4 C12 C43 1 uF Tantalum SMD 16V 10% 4
C42 10 uF Tantalum SMD 25V 10% 1

.1 uF Ceramic SMD 50V 10% 7

1

3

4-6

RESISTORS

Designator Description QTy

R15 R53 10 OHM 1/4 Carbon Film 5% 2
R46 390 OHM 1/4 Carbon Film 5% 1
R44 1.3K OHM 1/2 Carbon Film 5% 1
R27 2.2 OHM 1/10 SMD 5% 1
R25 39.2 OHM 1/10 SMD 1% 1
R45 R35 100 OHM 1/10 SMD 1% 2
R13 221 OHM 1/10 SMD 1% 1

ICS-22 Speaker Panel Instruction Manual

Vitec Group Communications

Designator Description QTy

R47 R51 301 OHM 1/10 SMD 1% 2
R20 432 OHM 1/10 SMD 1% 1
R22 825 OHM 1/10 SMD 1% 1
R14 R33 1.00K OHM 1/10 SMD 1% 2
R43 1.50K OHM 1/10 SMD 1% 1
R18 R21 R42 2.00K OHM 1/10 SMD 1% 3
R48 2.74K OHM 1/10 SMD 1% 1
R28 6.19K OHM 1/10 SMD 1% 1
R17 6.81K OHM 1/10 SMD 1% 1
R52 8.25K OHM 1/10 SMD 1% 1
R19 R38 12.1K OHM 1/10 SMD 1% 2
R16 15.0K OHM 1/10 SMD 1% 1
R24 R30 R31 R34 R39 20.0K OHM 1/10 SMD 1% 5
R37 R41 56.2K OHM 1/10 SMD 1% 2
R6 R12 R49 R50 100K OHM 1/10 SMD 1% 4
R32 121K OHM 1/10 SMD 1% 1
R26 475K OHM 1/10 SMD 1% 1
R54 1.0M OHM 1/10 SMD 5% 1
R8 R9 R10 R11 10K OHM X4 SMD DIP Isolated 1%4

R2 R3 47K OHM X4 SMD DIP Isolated 1%2

R1 100K OHM X4 SMD DIP

Isolated 1%
R7 220K OHM X4 SMD DIP

Isolated 1%
R4 470K OHM X4 SMD DIP

Isolated 1%
R36 Pot 10K TRIMPOT 1
R40 R23 Pot 5K TRIMPOT 2
R29 Pot 5K POT 1

DIODES AND TRANSISTORS

DESIGNATOR DESCRIPTION QTY

D8 LED BI-COLOR RED/GREEN 1
D14 LED LED, YLW, ULTRA BRGHT 1
IC5 IC LM384 POWER 4W OP AMP 1
IC11 IC 7805L POS 5V REGLTR 1
D9 D12 D15 D16 Diode BAV70 DUAL DIODE 4
IC1 IC2 IC8 IC 833 DUAL OP AMP 3

1

1

1

Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual

4-7

DESIGNATOR DESCRIPTION QTY

Q2 Transistor 2907A PNP 60V

600MA
D1 D2 D3 D4 D5 D6 D11

Diode BAV99 DUAL DIODE 8
D13

Q5 Transistor MPSA14 DNPN 30V

300MA
IC9 IC DG444 QUAD CMOS

ANALOG SW
Q1 Q3 Transistor J175 P-CHANNEL

JFET
D7 D10 Diode 5.1V 5% ZENER 1/4W 2
Q4 Transistor MPSA64 DPNP 30V

500MA
C10 IC MICROPROCESSOR,

KB/MR SERIES

MISCELLANEOUS

1

1

1

2

1

1

Designator Description Qty

P4 Connector 5 POS, SCREW

TERM

XLR 4 PIN M FLSH MNT 1
P10 Connector 3 POS, SCREW

TERM.
R29 Pot KNOB GRY INSRT .45 DIA

PT TO RD
S5 Button RND MINIATURE

BUTTON, BLCK
S4 Button RECT. MINIATURE

BUTTON, BLCK
D14 Lens LENS, YELLOW, ROUND 1

Speaker 2 1/2 IN. SPKR 16

OHM 3.5W
S4 S5 Switch DPDT P.B. 2
S2 Switch DPDT ROCKER PC

MNT W/BRCKT
S3 Switch DIP SWITCH PIANO 3

POS
S1 Switch SPDT ROCKER 1

1

1

1

1

1

1

1

1

4-8

ICS-22 Speaker Panel Instruction Manual

Vitec Group Communications

A

2. ALL CAPACITORS ARE LISTED IN MICROFARADS

3. ALL DIODES ARE 1N4148

B

C

18

45

36

D

E

NOTES: (UNLESS OTHERWISE SPECIFIED)

1. ALL RESISTORS ARE 1/10W 5% LISTED IN OHMS

R4A

470K*

SPARES:

R2D

47K*

R1C

100K*

1 1

510114

OPTION

OPTION (2)

LATCH

DISABLE

TW POWER

4-WIRE

45

3 4

10

10

C44

.47uF

S3C

10K*

CALL ON

SELECTED

220K*

18

12

+

R1D

100K*

R54

1M

R11B

2

VOXTALK

BOTH

R7A

100uF

10uF

1uF

2 7

36

CALL ON

BAV70

C41

C42

2

C43

BAV99

MMBTA14

D15

BAV70

3

G

D8

R

1

R11C

10K*

P1

123456789

J1

123456789

12

27

1 2

3

D12

36

+

+

3

VIn

GND

VOut

1

+

VDD

D13

3

3

.01uF

C40

Q5

CALL

LIGHT

1 2

3

300*

300*

36

R2C

47K*

R11D

10K*

45

1 3

D10

5.1V

BAV70

3

R7B

220K*

R7C

220K*

+V1

R45

100*

R46

390

IC11

7805L

Q4

MMBTA64

1 2

D11

BAV99

D14

VDD

R47

R51

D9

27

18
13

.47uF

SIGNAL

+V2

R1B

100K*

100K*

+
C39

R44

1.3K 1/2 W

.01uF

CALL

+V3

R1A

5.1V

CALL

TALK

C38

R9C

10K*

36

10K*

18

VDD

6

D7

R43

1.5K*

+V2

6

14

R9A

.01uF

R9B

10K*

27

S5

354

+V2 +V2 +V2

+V2

JUMPER

15K*

6.8K*

1 8

2

-

4.7uF

510114

16

AMPLIFIER

3
1

SPEAKER

ON-OFF

W1

12

C2

1uF

R13

220

R16

R17

8 4

.1uF

C10

C11

R20

430*

S3A

220uF

POWER

220uF

2

S1

+

470pF

1uF

CHANNEL

C47

+

+
C8

.01uF 1.4KV

100K

4.7uF

3 6

C7

470K*

C4

+

+V1

R3B

47K*

SINGLE

SPEAKER

4 4

HEADSET

XLR 4

XLR 3

XLR 2

XLR 1

XLR G

P5

P7

123

1

C46

D1

2 1

Q1

MMBFJ175

IC9A

DG444

MMBT2907A

Q2

C5

+V2

123

2

W3

JUMPER

W4

JUMPER

1 2

D6

BAV99

3

3

1

5

12

2134

+V3

C32

.1uF

+V1

213

R52

8.2K*

INTERCOM

LINE

DRIVER

INTERCOM

CHANNEL(S)
1
2
3
4
5

P4

P6

A

D5

BAV99

3

12

JP1

R35

100*

B

VDD

+V1

C

D E

C1

R12

470pF

BAV99

3

+

C6

3

R4C

470K*

R4B

27

47pF

27

R53

10

R15

10

OPTION (1)

3

D2

BAV99

R7D

220K*

Bias-1

4-WIRE

LM833

3 3

JUMPER

W2

+V1

13

R10A

10K*

R10B

10K*

2 7

+

12

C28

22uF

R2A

47K*

18 2 7

R2B

47K*

3

2

+

­8 4

IC1A

LM833

+V1

1

Bias-1

Bias-1

121K*

C26

220pF

20K*

Bias-1

J3

1234567

8

P3

1234567

8

Bias-1

1 2

R33

1K*

11

9

4 5

IC8B

IC9C

DG444

10

3 6

R8C

10K*

5

6

C27

47pF

+

-

R34

20K*

7

18

BAV99

3

C23

.22uF

.047uF

C24

R32

R28

6.2K*

R30

IC2B

LM833

CW

INTERCOM

VOLUME

2

R31

20K*

2 7

R8B

10K*

.1uF

D4

+V1

36

.0047uF

5

+

7

3 1

R29

5K POT

C21

.22uF

C25

GM / VOX

OPTION

R4D

470K*

45

5

+

-

IC1B

LM833

7

R3C

47K*

LONG LINE

2 5

Bias-1

S3B

C22

R25

39*

R23

5K POT

470K*

R26

R24

20K*

Bias-1

6

R6

100K*

-

2

5

R48

2.74K*

.0047uF

C20

+

7
3
4
5
10
11
12
13

R27

2.2

6

22pF

.22uF

12.1K*

45

SELECTOR

2

14

VDD

Bias-1

.01uF

C14

C15

R19

R3D

47K*

C16

.0022uF

CW

2

.047uF

C19

47pF

CHANNEL

S2

8

12

C13

MMBFJ175

R22

825*

PREAMP

NULL

3 1

C18

LINE

RECEIVER

CH A CH B

1
3
4
6

6

­1

14

IC5

LM384

+

100uF

C17

+1+3+5+7+9+11+
+2+4+6+8+10+12+

BAV99

Q3

LM833

SIDETONE

J2

R14

1K*

D3

21

2K*

.0047uF

R3A

47K*

3

+

IC2A

R21

2K*

INTERCOM

+
C12

1uF

.1uF

C45

1
2

P2

3

3

R18

C9

1

2 2

PROGRAMMING / TEST INTERFACE

1 - Gnd / Gnd

2 - Data / Strobe

3 - n/a / Data Out

4 - Clock / Clock

5 - MCLR (not) / Data In

6 - +5V / n/a

2

S4

1

354

R11A

10K*

VDD

18

2

.1uF

RB013RB112RB211RB34RB43RB5

VDD

VSS

1

RC010RC19RC28RC37RC46RC5

IC10

PIC16C505

5

C37

2

1

R9D

10K*

45

Bias-1

R42

2K*

2

CW

PROGRAM

VOLUME

R40

5K POT

IC8A

LM833

R41

56.2K*

R50

100K*

Bias-1

C36

.1uF

BALANCED

PROGRAM

INPUT

123

P9

12345

6

C34

VDD

36

R10C

10K*

6

8

IC9B

DG444

7

+V1

C31

.01uF

C35

.047uF

C29

.01uF

R38

12.1K*

45

D16

BAV70

R10D

10K*

14

16

IC9D

DG444

15

18

R39

20K*

3 1

1

+

-

8 4

3

2

R49

100K*

C33

.1uF

P8

1 2

3

Bias-1

ALERT

TONE

VOLUME

CW

3 1

R36

10K POT

2
4 5

R8D

10K*

R8A

10K*

R37

56.2K*

+V1

C30

47pF

Figure 4-3: ICS-22 Schematic (part no. 710470)

Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual

4-9

BLANK PAGE

4-10

ICS-22 Speaker Panel Instruction Manual

Vitec Group Communications

Figure 4-4: VOX PCB Component Layout (part no. 710472)

ICS-22 VOX PCB (Part No. 710472)

CAPACITORS

Designator Description Qty

C13 1 uF Aluminum NP 50V 10% 1
C10 470 pF Ceramic Disc 50V 10% 1
C8 C12 4.7 uF Tantalum 16V 2
C1 C2 C3 .1 uF Monolithic 50V 10% 3
C5 680 pF Ceramic Disc 50V 10% 1
C4 .022 uF Monolithic 50V 10% 1
C6 C9 .01 uF Monolithic 50V 20% 2
C11 220 uF Aluminum 16V 20% 1

Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual

4-11

Designator Description Qty

C14 22 uF Tantalum 10V 10% 1

RESISTORS

Designator Description Qty

R1 R12 R16 R17 R13 4.7K OHM 1/4 Carbon Film 5% 5
R2 6.8K OHM 1/4 Carbon Film 5% 1
R6 1.5K OHM 1/4 Carbon Film 5% 1
R4 R8 1M OHM 1/4 Carbon Film 5% 2
R11 R15 100K OHM 1/4 Metal Film 1% 2
R14 20K OHM 1/4 Carbon Film 5% 1
R3 R10 10K OHM X5 SIP ISOLATED 2
R9 100K OHM X4 SIP ISOLATED 1
R5 Pot 50K TRIMPOT 1

DIODES AND TRANSISTORS

Designator Description Qty

D3 D4 D5 D6 D7 D8 Diode 1N4148 SIGNAL 10MA

75PIV
Q1 Q2 Transistor PN2222A NPN 30V 2
IC1 IC2 IC LF353 BIFET OP AMP 2
D1 D2 Diode 1N5231B ZENER 5.1V

.5W 5%
D9 Diode 1N4740A ZENER 10V

0.5W 5%

MISCELLANEOUS

Designator Description Qty

Panel Mic Jack PHONE JACK 1
R5 Pot SHAFT FOR PIHER POT

BLACK
S1 Switch DPDT TOGGLE 1

6

2

1

1

4-12

ICS-22 Speaker Panel Instruction Manual

Vitec Group Communications

E

VDD

Q2

2N2222A

D

C

C4

.022uF MONO

R2

6.8K

R5

50K POT

R16

4.7K

3 4

R3B

10K X 5I

Bias-2

R6

1.5K

31

R8

CW

2

1 2

R4

1M

+V4

R15

ANTI

VOX

C5

680pF

1M

100K*

D2

6

R9A

100K X 4I

5.1V

1N5231B

C6

.01uF

R11

100K*

C9

7

­5

D3

.01uF

1

C2

.1uF

IC2A

IC2B

LF353

+

+V1

D5

3 4

R9B

+

C8

4.7uF 16V

56

R3C

10K X 5I

D4

1N4148

7

IC1B

LF353

+

­5

6

Bias-2

1N4148

R3D

10K X 5I

8 4

1N4148

100K X 4I

56

78

2

R9C

D8

D7

D6

R13

-

100K X 4I

1N4148

1N4148

1N4148

4.7K

LF353

+

3

R9D

100K X 4I

7 8

C12

4.7uF 16V

+

E

D

C

C3

B

Q1

2N2222A

VDD

A

12

VDD

R3A

R17

R1

4.7K

14

+

+

12

+

+

10

+

+

8

+

+

6

+

+

4

+

+

2

+

+

P2

Bias

4 4

Figure 4-5: VOX Schematic (part no. 710472)

Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual

.1uF

10K X 5I

4.7K

D1

5.1V

1

C1

1N5231B

.1uF

IC1A

LF353

8 4

+

2

1

HEADSET

1 2

PANEL

MIC

354

R10A

2

VOX

S1

10K X 5I

­3

Bias-2

Bias-2

C14

22uF TANT

+

R3E

10K X 5I

R10C

10K X 5I

R10E

D9

10V

1N4740A

10K X 5I

1 1

9 10

R10D

10K X 5I

C11

+

+V4

220uF

5 6 9 10

2 2

+V1

Bias

6

PANEL MIC

3 4

C13

1uF NP

Bias

3 3

R10B

10K X 5I

C10

470pF

R12

+V1

R14

20K

7 8

4.7K

B

1. ALL RESISTORS ARE 1/10W 5% LISTED IN OHMS

2. ALL CAPACITORS ARE LISTED IN MICROFARADS

3. ALL DIODES ARE 1N4148

NOTES: (UNLESS OTHERWISE SPECIFIED)

A

+V1

13

+V1
11
9
7
5
3
1

123

P1

4-13

BLANK PAGE

4-14

ICS-22 Speaker Panel Instruction Manual

Vitec Group Communications

T2

P3

R5

R2

C6

IC3

R7

Z3

R8

C5

R3

D3

P1

CLEAR-COM

R6

C3

C2

T1

R10

ASSY #710533

C4

R4

IC2

IC1

COPYRIGHT (C) 1999

P4

R1

Q1

D1

J1

C1

P2

16-18

VAC

PWR

R9

Figure 4-6: Matrix Option PCB Component Layout (part no. 710533)

Matrix Option PCB (Part No. 710533)

Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual

CAPACITORS

Designator Description Qty

C6 10 uF Aluminum 50V 1
C5 .022 uF Monolithic 50V 10% 1
C4 .1 uF Monolithic 100V 10% 1
C3 .0022 uF Monolithic 50V 10% 1
C2 100 uF Aluminum 35V 1
C1 2200 uF Aluminum 35V 20% 1

4-15

RESISTORS

Designator Description Qty

R5 2K OHM 1/4 Carbon Film 5% 1
R6 47K OHM 1/4 Carbon Film 5% 1
R8 1.5K OHM 1/4 Carbon Film 5% 1
R9 330 OHM 1/4 Carbon Film 5% 1
R1 R7 100 OHM 1/4 Carbon Film 5% 2
R10 2.2M OHM 1/4 Carbon Film 5% 1
R2 10K OHM X5 SIP ISOLATED 1
R4 4.7K OHM X 4 SIP ISOLATED 1
R3 100K OHM X4 SIP ISOLATED 1

DIODES AND TRANSISTORS

Designator Description Qty

D3 Diode 1N4148 SIGNAL 10MA

75PIV
Q1 Transistor TIP41 NPN 40V 6A 1
D1 Diode 1.5A 200V BRIDGE 1

1

INTEGRATED CIRCUITS

Designator Description Qty

IC3 IC LM833N 1
IC1 IC 488E RS-422 XCVR 1

MISCELLANEOUS

Designator Description Qty

T2 Transformer 600CT/600CT 1
T1 Transformer 10K:10K 1
IC2 IC MICRO, KB/MR MATRIX

OPTION
P2 Connector 2 POS HSING,

SCRW TRM.

1

1

4-16

ICS-22 Speaker Panel Instruction Manual

Vitec Group Communications

1

NOTES: (UNLESS OTHERWISE SPECIFIED)

1. ALL RESISTORS ARE 1/4W 5% LISTED IN OHMS

2. ALL CAPACITORS ARE LISTED IN MICROFARADS

2

16-20

VAC

P2

1

2

3

P5-6

P5-7

J2

J3

1

1

4

PROGRAMMING / TEST / INTERROGATION

1 - Gnd /Gnd /Gnd

2 - Data/Strobe Out /Strobe In

3 - n/a/Data Out /Data In

4 - Clock/Clock Out/Clock In

5 - MCLR (not)/Data In/Data Out

6 - +5V / +5V/ +5V

2

5

R10

7

RB4

RC4

9

R3B

R3A

3

6

2

+

RB3

RC3

VDD

4

VDD

1

R4A

4.7K

2

1

7

8

R4D

4.7K

13

12

11

4

RB0

RB1

RB2

VDD
RC0

RC1

RC2

10

9

8

7

3

+

­5

6

8

1

D3

1N4148

C4

.1uF

1

IC1

MAX488E

4

4.7K

R4B

6
5

VDD

4
3
2
1

VDD

P4

VDD

3

A

C2

100uF

+

R2A

B

C

4-WIRE

OPTION

CONNECTORS

5

+

IC3B

LM833

D

10K

2

1

3

4

R2B

10K

VDD

3

-

+

4

1

Call Light

1

2

3

4

5

6

7

8

9

10

1

2

3

4

5

6

7

8

6

­R8 1.5K

7

R7

100

10uF

+

C6

T2

TTC108

3

2200uF 35V

C1

R1

100

1

2

8

IC3A

LM833

P1

P3

4

1

4

-

1

D1

+

2

+

2

Q1

TIP41

3

R2C 10K

5

7

100K

6

8

Latch Disable

R6

6

3

Call Button

Sense Talk

5

6

2

3

/Ch. A

2K

R5

.022uF

4

1

7

R2D

10K

8

47K

5

2

/Ch. D

VDD

R3D

C5

C3

.0022uF

T1

MET-09

3

2

/Ch. C

14

VSS

IC2

PIC16C505P

10

10K

4

100K

100K

RB5

RC5

2.2MR2E

-

A

B

Programming / Test / Vdd /

Interrogation Connection

C

D

VDD

VDD

E

5

1

Figure 4-7: Matrix Option Schematic (part no. 710533)

Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual

100K

R3C

SPARES:

6

2

8

MATRIX

CONNECTOR

3

R4C

4.7K

6

4

E

R9

330

5

J1

1

2

3

4

5

6

7

4-17

BLANK PAGE

4-18

ICS-22 Speaker Panel Instruction Manual

Vitec Group Communications

5

SPECIFICATIONS

Note: 0 dBu is referenced to 0.775 V RMS

Headset Microphone Pre-Amp

Input Type Dynamic
Impedance 1k ohm
Input Level -55 dBu nominal; -10 dBu max.

Panel Microphone Pre-Amp (KB-211GM only)

Input Type Electret
Input Level -45 dBu nominal

Pre-Amp Response Curve

Frequency Response 250 Hz to 12 kHz, contoured for
intelligibility
Limiter Range 20 dB

Headphone Amplifier

Load Impedance Range 50 ohm to 2k ohm
Output Level at least +20 dBu across 600 ohm
Distortion < 0.5% THD at 1 kHz
Frequency Response 200 Hz to 15 kHz, ±3 dB
Power Output 110 dB SPL

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 75 dB
Distortion < 0.5% THD at 1 kHz
Speaker Level 98 dB SPL at 3 ft.

Program Amplifier

(Transformerless, balanced differential input)
Input Level -20 dBu
Input Impedance > 100k ohm
Frequency Response 150 Hz to 15 kHz, ± 3 dB

Power Requirements

Voltage 30-VDC standard unit;

16- to 18-VAC with 4-Wire Option Module

Current 100 mA average

Internal Connectors

Program Three-position, plug-on screw terminals

Vitec Group Communications
ICS-22 Speaker Panel Instruction Manual

5-1

AC Power Two-position, plug-on screw terminals

Front Panel Connectors

Panel Mic (1) 1/4-in. panel mounting jack
Headset: (1) XLR-4M

Front Panel Controls & Indicators

Panel/headset-mic switch (1)
Program-level control (1)
Intercom-volume control (1)
Sidetone control (1)
Talk button (1)
Answer-back button (1)
VOX control (1)
Talk/listen selector (1)
Speaker on-off switch (1)
Talk light (1)
Call-waiting light (1)

Environmental

32° to 122° F (0° to 50° C)

Dimensions

8.25 in. W x 4.5 in. H x 1.75 in. D
(210 mm x 114 mm x 44 mm)

Weight

ICS-22 1.34 lb. (0.61 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. Actual
operating performance may vary.

5-2

ICS-22 Speaker Panel Instruction Manual

Vitec Group Communications

LIMITED WARRANTY

Vitec Group Communications (VGC) warrants that at the time of
purchase, the equipment supplied complies with any specification in
the order confirmation when used under normal conditions, and is free
from defects in workmanship and materials during the warranty period.

During the warranty period VGC, or any service company authorized
by VGC, will in a commercially reasonable time remedy defects in
materials, design, and workmanship free of charge by repairing, or
should VGC in its discretion deem it necessary, replacing the product
in accordance with this limited warranty. In no event will VGC be
responsible for incidental, consequential, or special loss or damage,
however caused.

WARRANTY PERIOD

Return Material Authorization
(RMA) numbers are required
for all returns.

Both warranty and
non-warranty repairs are
available.

The product may consist of several parts, each covered by a different
warranty period. The warranty periods are:

• Cables, accessories, components, and consumable items have a
limited warranty of 90 days.

• Headsets, handsets, microphones, and spare parts have a limited
warranty of one year.

• UHF wireless IFB products have a limited warranty of one year.

• UHF wireless intercom systems have a limited warranty of three
years.

• All other Clear-Com and Drake brand systems and products,
including beltpacks, have a limited warranty of two years.

The warranty starts at the time of the product’s original purchase. The
warranty start date for contracts which include installation and
commissioning will commence from the earlier of date of the Site
Acceptance Test or three months from purchase.

TECHNICAL SUPPORT

To ensure complete and timely support to its customers, VGC’s User
Support Center is staffed by qualified technical personnel. Telephone
and email technical support is offered worldwide by the User Support
Center.

Vitec Group Communications
Warranty

The User Support Center is available to VGC’s customers during the
full course of their warranty period.

Instructions for reaching VGC’s User Support Centers are given below.

i

T elephone for Europe, Middle East and Africa: [phone] or
[phone]

Telephone for the Americas and Asia: [phone]
Email: [e-mail]

Once the standard warranty period has expired, the User Support
Center will continue to provide telephone support if you have
purchased an Extended Warranty.

For latest contact information please refer to the Service and Support
section at www.clearcom.com.

WARRANTY REPAIRS AND RETURNS

Before returning equipment for repair, contact a User Support Center
to obtain a Return Material Authorization (RMA). VGC representatives
will give you instructions and addresses for returning your equipment.
You must ship the equipment at your expense, and the support center
will return the equipment at VGC’s expense.

For out-of-box failures, use the following contact information:

Europe, Middle East and Africa

Tel: [phone] Email: [e-mail]

North America, Canada, Mexico, Caribbean & US Military

Tel: [phone] Email: [e-mail]

Asia Pacific & South America

Tel: [phone] Email: [e-mail]
VGC has the right to inspect the equipment and/or installation or

relevant packaging.
For latest contact information please refer to the Service and Support

section at www.clearcom.com.

NON-WARRANTY REPAIRS AND RETURNS

For items not under warranty, you must obtain an RMA by contacting
the User Support Center. VGC representatives will give you
instructions and addresses for returning your equipment.

You must pay all charges to have the equipment shipped to the
support center and returned to you, in addition to the costs of the
repair.

EXTENDED WARRANTY

You can purchase an extended warranty at the time of purchase or at
any time during the first two years of ownership of the product. The

ii

Vitec Group Communications

Warranty

purchase of an extended warranty extends to five years the warranty
of any product offered with a standard two-year warranty. The total
warranty period will not extend beyond five years.

Note: VGC does not offer warranty extensions on UHF wireless
intercom systems, or on any product with a 1-year or 90-day warranty.

LIABILITY

THE FOREGOING WARRANTY IS VGC'S SOLE AND EXCLUSIVE
WARRANTY. THE IMPLIED WARRANTY OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE AND ANY OTHER
REQUIRED IMPLIED WARRANTY SHALL EXPIRE AT THE END OF
THE WARRANTY PERIOD. THERE ARE NO OTHER WARRANTIES
(INCLUDING WITHOUT LIMITATION WARRANTIES FOR
CONSUMABLES AND OTHER SUPPLIES) OF ANY NATURE
WHATSOEVER, WHETHER ARISING IN CONTRACT, TORT,
NEGLIGENCE OF ANY DEGREE, STRICT LIABILITY OR
OTHERWISE, WITH RESPECT TO THE PRODUCTS OR ANY P ART
THEREOF DELIVERED HEREUNDER, OR FOR ANY DAMAGES
AND/OR LOSSES (INCLUDING LOSS OF USE, REVENUE, AND/OR
PROFITS). SOME STATES DO NOT ALLOW THE EXCLUSION OR
LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES OR
THE LIMIT ATION ON HOW LONG AN IMPLIED WARRANTY LASTS,
SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU. IN ANY
EVENT, TO THE MAXIMUM EXTENT PERMITTED UNDER
APPLICABLE LAW , VGC'S LIABILITY T O CUSTOMER HEREUNDER
SHALL NOT UNDER ANY CIRCUMSTANCES EXCEED THE COST
OF REPAIRING OR REPLACING ANY PART(S) FOUND TO BE
DEFECTIVE WITHIN THE WARRANTY PERIOD AS AFORESAID.

Vitec Group Communications
Warranty

This warranty does not cover any damage to a product resulting from
cause other than part defect and malfunction. The VGC warranty does
not cover any defect, malfunction, or failure caused beyond the control
of VGC, including unreasonable or negligent operation, abuse,
accident, failure to follow instructions in the manual, defective or
improperly associated equipment, attempts at modification and repair
not approved by VGC, and shipping damage. Products with their serial
numbers removed or defaced are not covered by this warranty.

This warranty does not include defects arising from installation (when
not performed by VGC), lightning, power outages and fluctuations, air
conditioning failure, improper integration with non-approved
components, defects or failures of customer furnished components
resulting in damage to VGC provided product.

This limited warranty is not transferable and cannot be enforced by
anyone other than the original consumer purchaser.

This warranty gives you specific legal rights and you may have other
rights which vary from country to country.

iii

iv

Vitec Group Communications

Warranty