CLEAR-COM ENCORE
CS-702 TWO-CHANNEL MAIN STATION
INSTRUCTION MANUAL
-i
CS-702 Portable Two-Channel Main Station Instruction Manual
Part number: 810344Z Rev. 3
Legal Disclaimers
Copyright © 2013 HME Clear-Com Ltd.
All rights reserved.
Clear-Com, the Clear-Com logo, and Clear-Com Concert are trademarks or registered trademarks of HM Electronics, Inc.
The software described in this document is furnished under a license agreement and may be used only in accordance with the
terms of the agreement.
The product described in this document is distributed under licenses restricting its use, copying, distribution, and decompilation/
reverse engineering. No part of this document may be reproduced in any form by any means without prior written authorization
of Clear-Com, an HME Company.
Clear-Com Offices are located in California, USA; Cambridge, UK; Montreal, Canada; and Beijing, China. Specific addresses
and contact information can be found on Clear-Com's corporate website:
www.clearcom.com
Americas and Asia-Pacific Headquarters
California, United States
Tel: +1.510.337.6600
Email: CustomerServicesUS@clearcom.com
Europe, Middle East, and Africa Headquarters
Cambridge, United Kingdom
Tel: +44 1223 815000
Email: SalesSupportEMEA@clearcom.com
Canada Office
Quebec , Canada
Tel: +1 (450) 653-9669
China Office
Beijing Representative Office
Beijing, P.R.China
Tel: +8610 65811360 / 65815577
-ii
CONTENTS
Legal Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-ii
Americas and Asia-Pacific Headquarters. . . . . . . . . . . . . . . . . . . . . . . 1-ii
Europe, Middle East, and Africa Headquarters . . . . . . . . . . . . . . . . . . 1-ii
Canada Office. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-ii
China Office . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-ii
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
The Clear-Com Concept. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Monitoring System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Dual-Action Talk Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Stage Announce (Paging). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Call Signaling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Program Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Sidetone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Linking Channels Together . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Remote Mic-Kill Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Power Supply Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
System Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Portability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Easy Interconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Easy System Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Front Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Rear Panel Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Clear-Com Station Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
System Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Cable Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Portable Installation Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Permanent Installation Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Internal Options and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Interconnection Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Headsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
CS-702 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
CS-702 TWO-CHANNEL MAIN
i
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . 4-1
CS-702 Two-Channel Station. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
LIMITED WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . 5-I
Warranty Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-i
Technical Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-i
Warranty Repairs and Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-ii
Non-Warranty Repairs and Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-iii
Extended Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-iii
Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-iii
ii
CS-702 TWO-CHANNEL MAIN STATION
Please read and follow
these instructions before
operating this product.
IMPORTANT SAFETY
INSTRUCTIONS
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug.
A polarized plug has two blades, with one wider than the other. A
grounding-type plug has two blades and a third grounding prong. The
wide blade or the third prong are provided for your safety. If the provided
plug does not fit into your outlet, consult an electrician for replacement of
the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at
plugs, convenience receptacles, and the point where they exit from the
apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the apparatus. When a cart is used, use caution
when moving the cart/apparatus combination to avoid injury from
tip-over.
13. Unplug this apparatus during lightning storms or when unused for long
periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required
when the apparatus has been damaged in any way, such as power-supply
cord or plug is damaged, liquid has been spilled or objects have fallen into
the apparatus, the apparatus has been exposed to rain or moisture, does
not operate normally, or has been dropped.
15. WARNING: To reduce the risk of fire or electric shock, do not expose
this product to rain or moisture.
Please familiarize yourself with the safety symbols in Figure 1. When you
see these symbols on this product, they warn you of the potential danger
of electric shock if the main station is used improperly. They also refer
you to important operating and maintenance instructions in the manual.
CS-702 TWO-CHANNEL MAIN STATION
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
EMC AND SAFETY
The CS-702 Two-Channel Main Station meets all relevant CE, FCC, UL,
and CSA specifications set out below:
EN55103-1 Electromagnetic compatibility. Product family standard for
audio, video, audio-visual, and entertainment lighting control apparatus
for professional use. Part 1: Emissions.
EN55103-2 Electromagnetic compatibility. Product family standard for
audio, video, audio-visual, and entertainment lighting control apparatus
for professional use. Part 2: Immunity.
UL 60065-7, CAN/CSA-C22.2 No.60065-3, IEC 60065-7 Safety
requirements.
And thereby compliance with the requirement of Electromagnetic
Compatibility Directive 2004/108/EC and Low Voltage Directive
2006/95/EC
This device complies with Part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
iv
CS-702 TWO-CHANNEL MAIN STATION
Clear-Com is a
closed-circuit intercom
system that consistently
provides high-clarity
communication in both
high-noise and low-noise
environments.
OPERATION
INTRODUCTION
Congratulations on choosing this Clear-Com product. Clear-Com was
established in 1968 and remains the market leader in providing intercoms for
entertainment, broadcast and industrial applications. The ruggedness and high
build quality of Clear-Com products defines the industry standard. In fact,
many of our original beltpacks and main stations are still in daily use around
the world.
Please read this manual completely to better understand the functions of this
product. If you encounter a situation or have a question that this manual does
not address, contact your dealer or call Clear-Com directly at the factory. Our
applications support and service people are standing by to assist you. (Refer to
Chapter 5: “Warranty” for contact information.) Thank you for selecting
Clear-Com for your communications needs.
THE CLEAR-COM CONCEPT
Clear-Com is a closed-circuit intercom system that consistently provides
high-clarity communication in both high-noise and low-noise environments.
A basic system consists of a single- or multi-channel power supply or main
station connected to various single- or multi-channel remote stations, such as
beltpacks and loudspeaker stations.
Clear-Com manufactures a wide variety of both portable and
fixed-installation units. All are compatible with each other. Clear-Com
intercom systems can also interface with other communication systems and
devices.
Clear-Com stations are interconnected with two-conductor, shielded
microphone cable, using 3-pin XLR connectors. One wire carries the DC
power from a main station or power supply to all remote stations, and the
other wire carries two-way (duplex) audio information. The shield acts as a
common ground. One termination (per channel) is needed throughout the
intercom network, and is usually located in the main station or power supply.
Clear-Com is a distributed amplifier system; each main and remote station
houses its own mic preamplifier, headset or speaker power amplifier, and
signaling circuitry. The automated headset detection circuit shuts off a
station’s mic pre-amp when the headset is disconnected, so background noise
on the line is not increased by an unused yet online station. Low-impedance
mic input lines and specially designed circuitry make Clear-Com channels
virtually immune to RFI and dimmer noise.
Clear-Com main stations, power supplies and certain remote stations each
have an auxiliary program input with its own volume control, which allows an
external audio source to be fed to the intercom system.
CS-702 TWO-CHANNEL MAIN STATION
1-1
Headset
CS-702
2-Channel
Main Station
Call
Remote
Mic Kill
Sidetone
B
Prgm
Feed
Level
Program
Volume
D.C. Short
Intrpt
Pgm
Sidetone
A
Prgm
Feed
Level
Intrpt
Pgm
Announce
Earphone
Party LIne
Link
Volume
Tal k
Ch. A
Ch. B
Channel A Channel B
Off
Off
The power provided by
main stations and power
supply units enable remote
stations to operate with
minimal current while
generating extremely loud
listen volumes.
Visual signal circuitry (call lights), a standard feature on all main and remote
stations, allows you to attract the attention of operators who have removed
their headsets.
Depending upon the type of main and remote stations selected and assuming
that enough DC power is available remote stations and headset stations can be
distributed along 1 mi. (1.67 km) of wire. Remote stations bridge the intercom
line at a very high impedance and place a minimum load on the line. The
audio level always remains constant and does not fluctuate as stations leave
and join the network.
The DC power provided by main stations and power supply units enable
remote stations to operate with minimal current while generating extremely
loud listen volumes. The higher voltage and low current keep voltage losses to
an absolute minimum in long lines.
DESCRIPTION
The CS-702 is a portable, two-channel main station with a regulated power
supply and a versatile monitoring system. It features excellent speech
intelligibility in all noise-levels. The CS-702 contains a mic preamp with a
limiter.
The CS-702 provides DC voltage and the ability to talk and listen on two
separate channels. It supports and monitors two intercom lines containing
remote headset or remote speaker stations.
1-2
Figure 1-1 CS-702 Front Panel
Relay Out
Program Input
30V, 1.2A Continuous, 2A Peak
A
Channel
B
Channel
On
Off
Ter m
On
Off
Figure 1-2 CS-702 Rear Panel
CS-702 TWO-CHANNEL MAIN STATION
Mic
Line
MONITORING SYSTEM
The front panel of the CS-702 has one headset connector for use by the
operator. The operator monitors the intercom channels by turning up the
appropriate listen level volume controls (one for channel A, one for channel
B). Either channel may be monitored separately, or both simultaneously
(without tying the two channels together). These volume controls are always
active regardless of talk channel selection on the station.
The jack marked earphone is connected in parallel with the earphone circuit
of the headset connector. It can be used for monitoring or recording.
DUAL-ACTION TALK BUTTONS
Each channel has its own talk button which can either latch on, or operate
momentarily. Pressing the button quickly will toggle the talk function,
alternately turning it on or off. The talk button will illuminate amber when
activated and blue when not activated.
STAGE ANNOUNCE (PAGING)
The stage announce button on the front panel sends the signal from the
operator’s headset microphone to the balanced, line-level stage announce
output on the back panel.
The stage announce button also mutes the operator’s voice output to the
intercom channels. This mute function can be defeated with an internal
user-selectable jumper. The stage announce button also activates a SPDT
relay when pressed. The 1 ampere contacts can be used for any user-desired
control function (i.e. muting a local monitor speaker).
CALL SIGNALING
Visual “call signaling” attracts the attention of people who have removed their
headsets or turned off their speakers. The CS-702 front panel provides a call
button for each channel. Pressing the call button turns on the call lights at all
stations on that channel. The call is active regardless of talk status.
When a remote station sends a call signal, the call button associated with that
channel flashes red, whether or not the channel is selected.
PROGRAM INPUT
The CS-702 accepts a balanced, mic-level or line-level program input which
can be monitored in the headset. Program volume for the operator’s headset is
adjustable with the program volume knob on the front panel. The external
program is also assignable and adjustable in level to either or both channels,
and mixes with the intercom signal. The program feed can be set to be
interrupted by the talk for a particular channel.
CS-702 TWO-CHANNEL MAIN STATION
1-3
SIDETONE
The sidetone controls for each channel on the front panel allows adjustment of
the operator’s own voice as heard in the headset.
LINKING CHANNELS TOGETHER
A front panel button is provided. It allows the operator to instantly connect
channel A and channel B together for a combined intercom system consisting
of both channels.
REMOTE MIC-KILL FUNCTION
The CS-702 provides the ability to turn off any open mics on remote stations.
Momentarily pressing the RMK button will remove the DC power from both
channels clearing the talk function of all the beltpacks.
POWER SUPPLY PROTECTION
The CS-702 power supply is regulated, current-limited, and provides DC
power from an AC mains supply. The CS-702 has an automatic short-circuit
sensor to protect the system from miswired cable, shorts in the lines, or
general current overload. If a short occurs, the red LED on the front panel
marked D.C. Short illuminates. Removing the short will cause the power
supply to reset itself automatically in as little as ½ second, depending upon
whether there was a single or multiple short or overload.
SYSTEM TERMINATION
The CS-702 provides individually-selectable audio termination networks for
both channel A and channel B.
PORTABILITY
The unit is lightweight and sturdy for applications that require that it be
moved between various locations.
EASY INTERCONNECTION
The CS-702 provides three 3-pin, male XLR outputs for channel A
(connectors are wired in parallel) and three for channel B. Intercom signals
are fed from the CS-702 with standard mic cable (see next section).
1-4
EASY SYSTEM EXPANSION
The CS-702 can be connected together with other CS-702s or other
Clear-Com power supplies for multiple two-channel systems and back-up
power support.
CS-702 TWO-CHANNEL MAIN STATION
FRONT PANEL DESCRIPTION
Normal operation of the CS-702 only requires access to the front panel
controls. For intercom operation set the listen level controls for each channel
to desired level and press the talk switches when talking. The rest of this
section is a detailed description of each control.
12
10
4
Sidetone
A
Channel A
2
Headset
8
9
Earphone
Announce
Pgm
Party LIne
Link
Intrpt
Prgm
Feed
Level
6
7
3
Volu me
Talk
Call
1
Channel B
2
Sidetone
B
5
Remote
Mic Kill
4
Prgm
Feed
Level
Pgm
Intrpt
OffOff
Program
Volume
Ch. A
Ch. B
D.C. Short
CS-702
2-Channel
Main Station
67
11
13
Figure 1-3 CS-702 Front Panel
1. Talk Buttons: Each channel has its own illuminated talk button for
activating the microphone feed to a given channel. Mechanically the
pushbutton is momentary in action; however, electrically the button has
dual action (momentary or latching) depending on how the button is
pressed.
• 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 talk button illuminates amber when you
press it to send a talk signal, and blue when not active. When
illuminated blue, the talk button indicates that the station is receiving
power.
• CALL INDICATION: The call button will flash red when a call
signal is received on the channel.
2. Call Buttons: Each channel has its own call button. Pressing the call
button at any time will send a call signal on that channel regardless of the
activation of the talk circuit for that channel.
The call button for that channel illuminates brighly when pressed, indicating the presence of a call signal on the line.
3. Listen Level Controls: Each channel has a separate listen level control.
Listening is always on and is not controlled by any logic. To listen to a
CS-702 TWO-CHANNEL MAIN STATION
1-5
channel, turn up the appropriate control. To not listen to a channel, turn
the control completely off.
4. Sidetone Controls: Each channel has a sidetone null control. This control
is used to set the amount of the microphone that is heard in the earphone
from that channel.
This control is a true hybrid null control and therefore is sensitive to
changes in line loading. For headphone use it is best to find the null for a
given channel and then rotate the control clockwise to obtain the desired
sidetone level.
If an external speaker is used providing a possible acoustic feedback path,
it will be necessary to use an almost complete null of the sidetone control.
5. Remote Mic Kill Buttons: It sometimes becomes desirable in an
intercom system to turn off all open microphones in a system.
Pressing and holding the RMK button for several seconds will reset all
open microphones at all beltpacks on both channels.
Caution: RMK CANNOT be used if power for a channel is derived from
some place other than the local station. The RMK action
momentarily shorts the power line of the affected channel. RMK
only works from a single main station system.
6. Program Enable Switches: The CS-702 has the ability to feed an
external program signal to either of the two channels independently. The
program enable switch allows the program to be turned on, off, or on with
interrupt.
•In the on position, the program is fed to the channel under all
conditions.
•In the off position, the program is not fed to the channel.
•In the int position, the program is fed except when a talk is activated
to the channel. This program interrupt or IFB function can be used
for talent cuing and dressing room show monitor applications.
7. Program Feed Level Controls: Each channel has a program feed level
control that sets the amount of program being sent to that channel when
the program is activated.
8. Headset Connector: The headset connector is located on the front panel.
All Clear-Com headsets are recommended for use with the CS-702. The
following is a description of the characteristics of a suitable headset:
• Mic Type --- Dynamic, see technical specifications for details
• Headphone --- Dynamic, see technical specifications for details
The wiring of the headset is to be as follows:
• Pin 1 --- Mic common
• Pin 2 --- Mic hot
• Pin 3 --- Headphone common
1-6
• Pin 4 --- Headphone hot
CS-702 TWO-CHANNEL MAIN STATION
The mic and headphone wiring in the headset cord must be individually
shielded. Do not connect pins #1 and #3 together. Headset extension
cords or headset “Y” cables are not recommended because they will
increase crosstalk between channels.
9. Earphone Jack: The jack marked earphone provides an output intended
to drive an extra earphone. This output is capable of driving a headphone
or loudspeaker.
10. Party Line Link Switch: This switch marked Party Line Link on the
front of the unit allows the operator to “combine” channels A and B so
that all stations can talk to each other. (Normally channels A and B are
totally isolated and stations on one channel cannot talk to stations on the
other channel.) When in the Party Line Link operating mode, only the
channel A controls operate. The channel B controls have no effect.
Note: When the switch is in the Party Line Link position, the channels
do not actually “combine.” What really happens is that the three
“B” channel connectors are simply internally disconnected from
the “B” circuitry and connected to the “A” channel circuitry,
putting all stations on the channel “A” party line. This maintains
all the correct line and station terminations.
Caution: The link function will work properly at the main station that is
providing the “line terminations” for the system. If there is
more than one main station in the system equipped with a
“link” switch, DO NOT ATTEMPT TO USE THE “LINK”
SWITCH ON THE STATIONS THAT ARE NOT
PROVIDING THE LINE TERMINATION. Both double-line
termination and station un-termination will result, causing
significant sidetone mis-adjustments and possible feedback and
oscillation.
11. Program Volume Control: The program volume control sets the amount
of the program signal heard directly in the headphone. This control only
affects what is heard in the headphone and does not affect program feed
to the intercom lines.
12. Announce Button: The announce button allows the operator to instantly
use the microphone input to directly talk to a system external to the
intercom such as a paging speaker/amplifier in another room. A dry set of
relay contacts on the rear panel is also available that can be used to
activate external switching as needed when the announce button is
pressed.
Pressing the announce button momentarily disables any active talks.
Active talk circuits will be restored when the button is released. The talk
muting action can be defeated if desired by moving an internal jumper
(refer to the section “Internal Options and Adjustments”).
13. Power Supply LEDs:
• NORMAL OPERATION: The talk buttons illuminate blue when the
station is receiving power.
• OVERLOAD AND SHORT CONDITIONS: A red D.C. Short light
indicates that an overload or short condition exists.
CS-702 TWO-CHANNEL MAIN STATION
1-7
Lowering an excess load or removing a short will allow the automatic
reset circuit to attempt to reset the power supply, to restore normal operation to the power supply without operator intervention.
REAR PANEL DESCRIPTION
3
2
A
Channel
1
B
30V, 1.2A Continuous, 2A Peak
Channel
4
On
Off
Ter m
On
Off
3 7
5
Relay Out
Program Input
Mic
Line
6
8
Figure 1-4 CS-702 Rear Panel
1. Power Switch: The AC power switch is located on the bottom left corner
of the rear panel.
2. Power Connector: Just above the power switch is an EIA power
receptacle for AC power input.
3. Intercom Line Connectors: There are two sets of three XLR-3M
intercom connectors for both channel outputs. Standard Clear-Com
wiring is as follows:
1-8
Pin #1 --- Ground
Pin #2 --- Power
Pin #3 --- Intercom audio
4. Termination Switches: Each intercom channel is provided with a
termination switch allowing easy termination of the intercom line. The
switch is provided in case there are multiple main stations connected to
the intercom line.
Caution: For proper operation it is imperative that one and only one
termination be present on a Clear-Com line. Clear-Com line
drivers depend on a known load value for proper operation.
5. Announce Output Connector: The announce output is an XLR-3M. The
output is transformer isolated. Wiring is as follows:
Pin #1 --- Ground
Pin #2 --- -Audio
Pin #3 --- +Audio
CS-702 TWO-CHANNEL MAIN STATION
6. Announce Relay Contact Terminals: The announce relay contacts are
available on a 1/4” jack. The contact description is as follows:
Tip--- C --- Common
Ring--- N/C --- Normally Closed Contact
Sleeve--- N/O --- Normally Open Contact
7. Program Input Connector: The program input is an XLR-3F. It is an
electronically balanced (differential) input. Wiring is as follows:
Pin #1 --- Ground
Pin #2 --- -Audio
Pin #3 --- +Audio
8. Program Gain Switch: The program input gain switch is located next to
the program input connector. In the mic position the input will accept a
low-impedance dynamic microphone and gives a gain of 41dB from input
to the Party Line.
In the line position the input presents a balanced high impedance and
gives a -16dB gain from input to Party Line.
Caution: These servicing instructions are for use by qualified service
personnel only. To avoid electric shock, do not perform any
servicing other than that contained in the operating
instructions unless you are qualified to do so.
CS-702 TWO-CHANNEL MAIN STATION
1-9
1-10
CS-702 TWO-CHANNEL MAIN STATION
INSTALLATION
INSTALLATION OVERVIEW
The CS-702 is a combination of a very versatile intercom station and a system
power supply. Installations can vary depending on what features are used. The
fundamental concept of the Clear-Com party-line intercom is that all stations
provide high impedance current sourced signals into a single common system
termination.
The high DC resistance allows a call voltage to be placed on the line without
drawing too much current. The DC source for this call signal is also a current
source thereby providing a high impedance and not affecting the audio signal.
The receive or “listen” section of stations contains a hybrid null circuit that
attempts to reject (null) any talk signal being sent by that station on that
channel. The hybrid null circuit depends on a known impedance on the
intercom line to accomplish this. Variations in impedance on the line upset the
null.
Clear-Com main and some remote stations provide switch-selectable
termination networks on all intercom output lines. It is up to the user to
determine where the termination will be provided. An unterminated line will
cause excessive levels, possible oscillation of line drivers, and severe
unbalance of hybrid null networks. A double- or multiple-terminated line will
cause low levels and severe unbalance of hybrid null circuits.
Caution: All Clear-Com intercom lines must be terminated. Care must be
taken NOT to fail to terminate or to “double-terminate” a line. All
unused intercom inputs must be terminated to keep the line drive
circuits stable.
CLEAR-COM STATION TYPES
Clear-Com party-line intercom stations all fall into one of four distinct
categories that relate to system powering and termination. The four types are
as follows:
A. MAIN STATION:
• Supplies system power for external stations.
• Provides switch-selectable terminations.
B. MASTER STATION:
• Contains a power supply just for itself.
• Provides switch selectable line terminations.
C. REMOTE STATION:
CS-702 TWO-CHANNEL MAIN STATION
2-1
• No power supply. Derives power from the intercom line.
• May or may not have terminations.
D. POWER SUPPLY:
• Supplies system power for external stations.
• Provides switch-selectable terminations.
SYSTEM POWERING
Typical Clear-Com systems consist of a main station and multiple remote
stations. The remote stations are powered from the main station through the
intercom cable (Figure 2-5).
Figure 2-5 Typical Single Power Source System
Clear-Com power supplies can be paralleled to increase the number of remote
stations that can be operated in a system (Figure 2-6). The termination
switches in the second power source would need to be in the off position.
Note: The RMK function will not work on a system that has two or more
power supplies.
Figure 2-6 System With Multiple Power Sources
2-2
CS-702 TWO-CHANNEL MAIN STATION
CABLE CONSIDERATIONS
The Clear-Com intercom line is intended to run on a shielded twisted pair of
cable per channel of intercom. One conductor carries full duplex (two-way)
audio, the other conductor carries the DC power for remote stations. The
shield is used for ground return for audio and power. When choosing
interconnect cable, keep the following considerations in mind:
1. DC resistance of the ground or common conductor affects crosstalk. For
runs longer than 100 ft. (30.5 m) do not use wire smaller than 20 gauge.
The total resistance of the ground return (the combined parallel sum of all
Ω
shields to a location) to any point in the system should be under 1.5
2. The capacitance of the interconnect cable affects system frequency
response and sidetone stability. Total capacitance should not be greater
than 0.25 uF (capacitance between conductor and shield) equivalent to an
intercom system containing 5,000 ft. (1525 m) of cable at 50 pF per ft.
(0.305 m).
Portable Installation Cable
Typical cable for portable system interconnections is flexible, two-conductor,
shielded microphone cable. For runs less than 500 ft. (152.5 m) a cable made
of 24-gauge wire is acceptable. For runs longer than 500 ft. (152.5 m) use a
20-gauge cable or larger.
Portable remote stations such as beltpacks have a pair of input and output
connectors; when installing a system that includes these, they can be
daisy-chained or loop-through connected along one interconnect path.
Daisy-chaining and line-splitting decreases the amount of cable required and
simplify the installation.
.
CS-702 TWO-CHANNEL MAIN STATION
2-3
Permanent Installation Cable
Vinyl-jacketed shielded pair is the cable of choice for permanent installations.
Use a low-capacitance 20-gauge wire for short runs (under 500 ft. [152.5 m])
and 18-gauge cable for runs greater than 500 ft. (152.5 m). Placing the cable
in conduit is recommended but not necessary.
Multi-pair cable that is individually shielded is acceptable for use in
multi-channel systems. For cross-talk considerations, the shields must be tied
together on both ends of the cable to produce the lowest possible DC path for
ground return.
INTERNAL OPTIONS AND ADJUSTMENTS
To access the internal options and adjustments, you must remove the station’s
cover to gain access to the internal circuit board.
Before removing the station’s cover ensure the power to the station is
disconnected.
Remove the screws on either side of the station. Remove the four screws on
the top of the station. Remove the cover.
Note: These adjustments should only be carried out by qualified service
personnel.
2-4
2
1
3
Figure 2-7 Location of Jumpers and Adjustments on PCB
1 JP-1 and JP-2 Line Length Selection Jumpers: Jumpers JP-1 and JP-2
allow the optimization of the hybrid null circuitry for excessive intercom
cable lengths. JP-1 is for channel A and JP-2 is for channel B.
CS-702 TWO-CHANNEL MAIN STATION
Each jumper has three pins, labeled L, S, and M. A jumper plug is placed
over pins L and S, which is the default position for the pins. Moving the
jumper plug to place it over the following pin sets reconfigures the station
for the following line lengths:
• Long Lines. For line lengths in excess of 500 feet (152.5 m), place
the jumper plug over pins L and S. This is the default position to
which the unit is set when shipped from the factory.
• Medium Lines. For line lengths between 200 feet and 500 feet (61m
– 152.2 m), place the jumper plug over pins S and M.
• Short Lines. For line lengths less than 200 feet (61 m), remove the
jumper plug, or store it on the jumper by placing it sideways over pin
S.
2 JP-3 Interrupt Enable/Disable Jumper: Jumper JP-3 allows you to
select to either mute or not mute active talks when you use the stage
announce feature. The jumper has three pins. When shipped from the
factory a jumper plug covers pins 2 and 3 (ON). When the jumper plug is
placed over pins 2 and 3, active talks are muted when you use the stage
announce feature.
Placing the jumper plug over pins 1 and 2 turns off the muting feature, so
that active talks can be heard even when the stage announce feature is
used.
3 Headset Audio Limiter: To protect the hearing of the user, the headset
audio limiter restricts the maximum audio level heard in the headset. By
default, this feature is on when the station is shipped from the factory. You
can turn this feature on or off using an internal three-pin jumper.
To turn the headset audio limiter on or off:
1. Ground yourself and tools before opening the station or performing
any operation on the circuit board. Circuitry can be damaged by static
electricity.
2. Unscrew the top and side screws on the station’s cover, then lift the
cover off the station.
3. Locate the three-pin jumper labeled “JP4” on the circuit board.
A jumper plug connects pins 2 and 3 of the jumper. This is the on
position for the headset audio limiter feature.
4. Lift the jumper plug off pins 2 and 3 and place it over pins 1 and 2.
This is the off position for the headset audio limiter.
The headset audio limiter feature does not operate when the jumper
plug is in this position.
5. To turn the headset audio limiter feature on again, lift the jumper
plugs off pins 1 and 2 and place them over pins 2 and 3.
The headset audio limiter feature operates when the jumper plug is in
this position.
CS-702 TWO-CHANNEL MAIN STATION
2-5
INTERCONNECTION SETUP
After determining system configuration and channel assignment, pick a
location for the CS-702; it can be anywhere as long as it is provided with a
source of AC power.
1. Use standard shielded mic cable (refer to the section “Cable
Considerations”). Always avoid sharp bends in the cabling; allow at
least 3 in. (7.62 cm) behind rack-mount units for cable extending from
rear panels.
2. Route all cables from the main station to the remote stations. Pin
assignments on all 3-pin intercom connectors are:
Pin #1 --- Common
Pin #2 --- DC Power
Pin #3 --- Intercom audio
3. Route cables away from heavy AC power sources, such as lighting
panels, electric motors, or power transformers.
4. In permanent installations, be sure to install the system in accordance
with approved local building code.
5. If program monitoring is required, connect the external signal to the
program input (3-pin female) connector on the CS-702 rear panel. The
station operator can hear the program in the headset mixed with intercom
activity or the program can be sent to either intercom line. The program
pre-amp’s gain is switch-selectable (on the rear panel) for either mic level
or line-level and the input is balanced.
6. If the stage announce function is to be used, connect to the announce
output (3-pin male XLR) connector on the CS-702 rear panel and the
output is transformer balanced. If the output is to be used as an
unbalanced source, connect one side to common (pin #2 to pin #1).
2-6
If the Stage Announce relay is to be used, connect to the appropriate
screw-lug terminals (N/O or N/C) depending on what action is needed for
the external equipment to be controlled. The relay is a Form C (break
before make) contact.
Note: The contact rating of the relays is 1 ampere resistive at 24 VDC or
0.5 ampere(s) resistive at 120 VAC.
7. Turn on power switch on the rear panel. The call buttons illuminate blue
when the unit is initially turned on and receiving power. Plug in a headset,
and set intercom, program, and sidetone levels as desired.
HEADSETS
The following is a description of a recommended headset:
Mic Type --- Dynamic; see technical specifications for details.
Wiring:
Pin #1 --- Mic common
Pin #2 --- Mic hot
CS-702 TWO-CHANNEL MAIN STATION
Pin #3 --- Headphone common
Pin #4 --- Headphone hot
Speaker Station
CH A
Headset
Volume
Announce
Talk
Pgm
Party LIne
Link
Call
Intrpt
Sidetone
Prgm
Feed
A
Earphone
Level
2-Channel Main Station
CH A
Headset
Announce
Pgm
Party LIne
Link
Intrpt
Prgm
Feed
Earphone
Level
2-Channel Main Station
Speaker Station
1-Channel Beltpack
1-Channel Beltpack
Speaker Station
1-Channel Beltpack
1-Channel Beltpack
1-Channel Beltpack
CH B
Program
Volume
Pgm
D.C. Short
Remote
Mic Kill
Intrpt
Sidetone
Prgm
Feed
B
CS-702
Level
1-Channel Beltpack
1-Channel Beltpack
1-Channel Beltpack
Adaptor
2-Channel Beltpack
Speaker Station
Speaker Station
Speaker Station
Speaker Station
Speaker Station
Speaker Station
Push-to-Talk
Handset
Push-to-Talk
Handset
CH B
Volume
Program
Volume
Talk
Pgm
D.C. Short
Remote
Mic Kill
Call
Intrpt
Sidetone
Sidetone
Prgm
Feed
B
A
CS-702
Level
Channel Isolator
1-Channel Beltpack
1-Channel Beltpack
1-Channel Beltpack
Wall Plate
CS-702 TWO-CHANNEL MAIN STATION
Wall Pla te
Wall Plate
Figure 2-8 Typical CS-702 Systems
2-7
2-8
CS-702 TWO-CHANNEL MAIN STATION
MAINTENANCE
INTRODUCTION
This chapter provides maintenance information for the station.
Caution: These servicing instructions are for use by qualified personnel
only. To reduce the risk of electrical shock, do not perform any
servicing other than that contained in the operating instructions
unless you are qualified to do so.
CS-702 BLOCK DIAGRAM
The following is a block diagram of the CS-702:
CS-702 TWO-CHANNEL MAIN STATION
Figure 3-9 CS-702 Block Diagram
3-1
TROUBLESHOOTING TIPS
SYMPTOM CAUSE SOLUTION
System does not operate. Talk
lights do not illuminate blue.
Red short LED is not
illuminated.
The red short light stays
illuminated.
Excessive background noise
picked up by microphone.
Loss of AC power. Plug unit into dependable AC
source.
Fuse could be blown. Replace power supply.
Shorted or mis-wired intercom cable. Remove cables (one at a time) from
main station until faulty line is
located. Check for shorts between
pins #1 and #2. When removing a
possible short, wait for several
seconds to see if the automatic reset
will clear itself.
Defective remote station. Check remote unit.
Distance from mic to mouth is too
far.
Too many mics on in entire system. Turn off all unused mics. RMK can
Volume too high. Lower headset volume.
Move closer to mic.
be used to kill all Series 500
belt-pack open mics.
Hum or buzz in system. Inductive pickup caused by close
proximity of main or remote station
to power lines or transformers.
10 Ohm chassis ground resistor is
open.
Inductive pickup by headset mic;
check by switching mic on and off.
Relocate the offending unit or
wiring.
Check the DC resistance for 10
Ohms between the chassis and pin
#1 of any intercom connector.
If this condition occurs, it is
because the system ground came
into contact with something that
was “HOT” with respect to the
power supply earth ground.
Carefully check the system ground
and AC distribution in the area.
This is a potentially dangerous
situation. A shock hazard may exist
between a remote station headset
and ground.
Move mic away from “hum field.”
3-2
CS-702 TWO-CHANNEL MAIN STATION
SYMPTOM CAUSE SOLUTION
System feedback (acoustical) Volume too high at one station. Adjust.
Two or more speaker stations have
mics on simultaneously.
Headset mis-wired. Rewire headset connector.
Headset laying on table and
microphone on.
Headset quality. Some headsets have poor isolation
System feedback (electrical) Channel not terminated. Set the main station or power supply
Headset mic level high. Check sidetone levels.
A headset extension cord was used. Headset extension cords must be
Audio sounds low and
distorted; call light stays on.
An ultrasonic oscillation is present;
headset is mis-wired.
Move speaker stations farther away
from each other. Turn down volume
on one or more speaker stations.
Turn mic off.
between the microphone and
earphone. Adjust sidetone.
termination switch for that channel
to the on position.
used with great care and are not
recommended.
Rewire headset connector.
A headset extension cord was used. Headset extension cords must be
used with great care and are not
recommended.
Table 3-1: Troubleshooting Tips
CS-702 TWO-CHANNEL MAIN STATION
3-3
3-4
CS-702 TWO-CHANNEL MAIN STATION
TECHNICAL SPECIFICATIONS
CS-702 TWO-CHANNEL STATION
dBu is an absolute measurement. 0 dBu is referenced to 0.775 volts RMS
Headset Microphone Input
Input Type Dynamic
Input Impedance >= 1K
Mic Limiter Threshold 0dBu ± 3dB
Mic Limiter Range >= 15dB
Program Line Input
Maximum Level before Clipping >= 20dBu
Input Impedance >= 5K
Program Mic Input
Maximum Level before Clipping >= -35dB
Input Impedance >= 1K
Ω
Ω
Ω
Headset Output
Load Impedance >= 8
Output Impedance <= 25
Output Limiter Threshold +5dBu ± 3dB
Maximum Output Level before Distortion >= 17dBu
Ω
Ω
Party Line Output
Off Noise < -74dBu
Output Impedance >10K
Ω
Party Line Input
Crosstalk < -60dB
Max level before Clipping >= 12dBu
Sidetone Null Capability > 25dB
Stage Announce/Balanced Line Out
Type Balanced
Output Impedance >= 200
Load Impedance >= 600
Ω
Ω
Frequency Response
Headset Mic - Party Line 200 - 18KHz ± 3dB
Headset Mic - Line Out 200 - 18KHz ± 3dB
CS-702 TWO-CHANNEL MAIN
4-1
Program Input - Party Line 200 - 20KHz ± 3dB
Program Input - Headset Out 200 - 18KHz ± 3dB
Party Line - Headset Out 200 - 18KHz ± 3dB
Max Distortion
Headset Mic - Party Line <= 0.5%
Headset Mic - Line Out <= 0.5%
Program Input - Party Line <= 0.2%
Program Input - Headset Out <= 0.2%
Party Line - Headset Out <= 0.2%
Noise
Headset Mic - Party Line < -70dBu
Program Input - Party Line < -85dBu
Program Mic - Party Line < -70dBu
Program Input - Headset Out < -60dBu
Program Mic - Headset Out < -40dBu
Party Line - Headset Out < -50dBu
Max Gain
Headset Mic - Party Line 41dB ± 2dB
Headset Mic - Announce Out 55dB ± 3dB
Program Input - Party Line >= -16dB
Program Mic - Party Line 41dB ± 2dB
Program Input - Headset Out >= 18dB
Program Mic - Headset Out >= 70dB
Party Line - Headset Out >= 34dB
Mains Power
Input Voltage Range 100 - 240 VAC
Input Frequency Range 50 - 60 Hz
Input Power <= 60 VAC
Output Voltage 30 VDC ± 0.5V
Output Current per Channel (Continuous) 1.2 A
Output Current per Channel (Peak) 2 A (Do not exceed the 1.2A rating
for more than 2 seconds per 1
minute period)
Short Circuit Recovery Time (1st short) <= 0.5 sec
Short Circuit Recovery Time >= 20 shorts in 20sec)<= 20 sec
Rear Panel Connectors
Intercom: (6) XLR-3M (3 per channel)
Announce Out: (1) XLR-3M (audio)
Announce Relay: (1) 1/4 in. (0.64 cm) phone jack
(relay)
Program: (1) XLR-3F
AC Power: IEC 320 connector
4-2
CS-702 TWO-CHANNEL MAIN STATION
Rear Panel Controls
(2) Termination On-Off
switches
(1) Power switch
(1) Program input Mic/Line switch
Front Panel Connectors
Panel Mic: (1) 3.5mm earphone jack
Headset: (1) XLR-4M
Front Panel Controls & Indicators
(1) Announce button
(1) Party line link button
(2) Program
ON-OFF-INTERRUPT
switches
(2) Program level controls
(2) Sidetone controls
(2) Talk buttons
(2) Call buttons
(1) RMK button
(1) Program volume control
(2) Listen controls
(2) Short LEDs
Environmental
32 - 122o F (0 - 50o C)
Dimensions
8.5 in. W x 3.0 in. H x 10.0in. D
x
(216 mm
76 mm x 254 mm)
Wei ght
5.02 lbs. (2.28kg)
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.
CS-702 TWO-CHANNEL MAIN
4-3
4-4
CS-702 TWO-CHANNEL MAIN STATION
Return Material
Authorization (RMA)
numbers are required for
all returns.
LIMITED WARRANTY
Clear-Com 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 Clear-Com, or any service company authorized by
Clear-Com, will in a commercially reasonable time remedy defects in
materials, design, and workmanship free of charge by repairing, or should
Clear-Com in its discretion deem it necessary, replacing the product in
accordance with this limited warranty. In no event will Clear-Com be
responsible for incidental, consequential, or special loss or damage, however
caused.
WARRANTY PERIOD
The product may consist of several parts, each covered by a different warranty
period. The warranty periods are:
Both warranty and
non-warranty repairs are
available.
• 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, Clear-Com’s User
Support Center is staffed by qualified technical personnel. Telephone and
email technical support is offered worldwide by the User Support Center.
The User Support Center is available to Clear-Com’s customers during the
full course of their warranty period.
WARRANTY
i
Instructions for reaching Clear-Com’s User Support Centers are given below.
Americas and Asia-Pacific Headquarters California, United States Tel:
+1.510.337.6600 Email: CustomerServicesUS@clearcom.com
Europe, Middle East, and Africa Headquarters Cambridge, United
Kingdom
Tel: +44 1223 815000 Email: SalesSupportEMEA@clearcom.com
Canada Office Quebec , Canada Tel: +1 (450) 653-9669
China Office Beijing Representative Office Beijing, P.R.China
Tel: +8610 65811360 / 65815577
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). Clear-Com 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 Clear-Com’s expense.
For out-of-box failures, use the following contact information:
Americas and Asia-Pacific Headquarters California, United States Tel:
+1.510.337.6600 Email: CustomerServicesUS@clearcom.com
Europe, Middle East, and Africa Headquarters Cambridge, United
Kingdom Tel: +44 1223 815000 Email: SalesSupportEMEA@clearcom.com
Canada Office Quebec , Canada Tel: +1 (450) 653-9669
China Office Beijing Representative Office Beijing, P.R.China Tel: +8610
65811360 / 65815577
Clear-Com has the right to inspect the equipment and/or installation or
relevant packaging.
ii
WARRANTY
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. Clear-Com 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 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: Clear-Com 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 CLEAR-COM'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 PART
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 LIMITATION 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, CLEAR-COM'S LIABILITY TO 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.
This warranty does not cover any damage to a product resulting from cause
other than part defect and malfunction. The Clear-Com warranty does not
cover any defect, malfunction, or failure caused beyond the control of
WARRANTY
iii
Clear-Com, 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
Clear-Com, 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 Clear-Com), 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
Clear-Com 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.
iv
WARRANTY
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