ClearOne AP IR User Manual

AP IR Remote Control

Installation & Operation Manual

ClearOne Communications, Inc. ~ 1825 Research Way, Salt Lake City, UT 84119 ~ tel [phone] ~ fax [phone]

Table of Contents

The AP IR Remote Control System is designed to allow easy operation of all your
Audio Perfect

®

products from your desk or conference table, rather than from the

front panel of your ClearOne audio conferencing products.

The AP IR Remote Control is made up of two components: the handheld
infrared transmitter (remote control) and the base station infrared receiver. The
remote control is used to operate or customize the many features of the AP system,
such as: connect, disconnect, dial a telephone number, redial, store speed dial num­bers, activate speed dial, hook flash, adjust volume, and mute the microphones.

The AP IR Remote functions with an AP400 stand-alone system, an
AP400/AP800 combination, an AP800/AP10 combination, or a GT1524. The
remote’s default programming may be easily customized to fit your needs by simply
pressing certain key sequences on the remote control unit. In the event of a power
outage, the new programming will be stored in the receiver’s memory and will not
be lost or altered. The remote also provides positive feedback for the Mute and In
Use LEDs by actively monitoring the response of the controlled unit(s) and indicat­ing the correct status of each function.

Professional Services Group

If you need any additional information on how to install, set up, or operate your sys­tem, please contact us. We welcome and encourage your comments so we can con­tinue to improve our products and serve your needs.

ClearOne Communications ~ 1825 Research Way ~ Salt Lake City, UT 84119

Technical Support

Tel: [phone] (USA) or 1.801.974.3760
Fax: [phone]
E-mail: [e-mail]
Web: www.clearone.com

Sales and Customer Service

Tel: [phone] (USA) or 1.801.975.7200
Fax: [phone] (USA) or 1.801.977.0087
E-mail: [e-mail]

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Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760 Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

Introduction

Introduction

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Professional Services Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Product Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Product Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Programmable Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Telephone Device Type and ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Speed Dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Volume Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Hook Flash (AP400 and GT1524 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

AP IR Remote Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Using the AP IR Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

To Place a Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

To End a Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

To Adjust the Volume in the Room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

To Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

To Turn Off Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

To Access Features From a PBX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

To Redial the Last Telephone Number Dialed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

To Dial a Number Stored in Speed Dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

To Customize Your AP IR Remote Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Conference Call Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

© 2002 ClearOne Communications, Inc. All rights reserved. No part of this document may be reproduced in any
form or by any means without written permission from ClearOne Communications. Printed in the United States
of America. ClearOne Communications reserves specific privileges. Information in this document is subject to
change without notice.

AP IR Remote Control Installation and Operation Manual
ClearOne Part No. 800-160-050 June 2002 (Rev. 5.0)

Introduction

Introduction

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

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Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

ClearOne Communications EuMEA GmbH

Leonhardstr. 16-18, D-90443 Nuremberg, Germany
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]

Product Registration

Please register your AP IR Remote Control online in the Product section at

www.clearone.com

. When your product is properly registered, ClearOne
Communications is better able to serve you should you require technical assistance.
Registration information is also used to notify you of upgrades and new product
information.

Product Returns

All product returns require a return authorization (RA) number. Please contact the
ClearOne Technical Support before attempting to return your AP IR unit.

Unpacking

Ensure that you have received all of the items shown in Figure 1. If any items are
missing, contact ClearOne Technical Services.

ClearOne is not responsible for product damage incurred during shipment. You must
make claims directly with the carrier. Inspect your shipment carefully for obvious
signs of damage. If the shipment appears damaged, retain the original boxes and
packing material for inspection by the carrier. Contact your carrier immediately.

Figure 1. Items shipped with the AP IR Remote

Product Overview

AP IR receiver

The AP IR receiver cable connects to the RS-232 connector located on the back of
the AP or GT1524 unit. See Figure 3. The AP IR Receiver has three LEDs: Mute,
In Use, and Ready.

• Mute. The Mute LED flashes red when microphones are muted.

• In Use. The In Use LED glows red whenever a caller is on the line.

• Ready. The Ready LED glows red when the receiver is connected to an AP
product, indicating the system is ready for a valid command. The Ready LED
flashes to indicate that a command has been received.

✍

Figure 2. AP IR Remote Control receiver

Figure 3. An AP IR receiver connected to an AP400 system

Y

D

A

E

R

E

S

U

N

I

E

T

U

M

OFFON

123

ABC DEF

456

GHI JKL MNO

789

TUVPQRS WXYZ

#

0

*

VOLUME

MUTE

MUTE

OFF

ON

FLASH REDIAL PROGRAM

CONFERENCE

SPEED

CALL

DIAL

AP IR Remote Transmitter
PART 460-160-005

Y

D
A
E

R
E
S

U

N

I
E
T

U

M

AP IR Remote Receiver
PART 910-160-050

+ AAA -

+ AAA -

AAA Batteries (2)
PART 590-002-001

AP IR Remote Control

Installation & Operation Manual

AP IR Remote Control Manual
PART 800-160-050

External Power Amp

(Optional)

AP400

Video

odec

C

Telephone

Set

Analog

Telephone

Line

ADY

RE

E
S
U

N

I
E
T

MU

VCR

Tape Player

(Optional)

Speaker output

5W, 4 to 16Ω

Microphones

324

1

AP IR Receiver

Programmable Functions

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

AP IR transmitter

The AP IR transmitter is used to program and operate the AP systems and GT1524.
The buttons functions are described in Figure 4, below.

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Introduction

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Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

V

Figure 4. AP IR transmitter

Programmable Functions

Your AP IR Remote Control System is designed to operate right out of the box;
however, it is easy to program should you require different specifications. Select
from the options below and follow the instructions for the desired function you want
to customize.

The AP IR Remote does not use flow control. If a connected AP800, AP400, or
GT1524 has flow control enabled, the AP IR Remote will not operate. Disable flow
control on all connected devices.

Baud Rate

In order for you AP IR Remote Control System to operate properly, the baud rate
for the AP IR receiver and for the connected AP or GT1524 unit must be the same.

To program baud rate

1. Press and hold the Program button until the LEDs in the receiver flash.

2. Enter the code for the desired baud rate.

• 22831 = 9,600bps (default)

• 22832 = 19,200bps

• 22833 = 38,400bps

Baud rate example

To change the baud rate of the receiver to 19,200bps, enter:

Telephone Device Type and ID

The default dial command begins with ** which dials any AP telephone device. If
more than one telephone device (AP400 or AP10) is connected to the system, you
need to program the AP IR Remote with the device type and ID number of the unit
it will use for dialing and answering calls.

If there is only one telephone device in your network, or if you are using a sin­gle unit, you do not need to program the AP IR Remote with the device type and
ID—the default programming will work.

The GT1524 is a stand-alone unit which has no device ID. If you are using this unit,
you do not need to program the telephone device type and ID.

✍

✍

Telephone On

Press to get a dial tone.

OFFON

123

Numbers

Use these buttons to
dial telephone numbers
and to program
functions.

olume Up

Press to raise the audio
level in the room.

Mute On

Press to mute all
microphones in the room
(default). Can be
programmed to mute specific
microphones in the room.

Flash

Provides a hook flash for
accessing features on your
PBX. Please consult your
PBX owners manual for
specific instructions
regarding your individual
telephone system.

Speed Dial

Press to dial telephone
numbers that have been
programmed into the
Speed Dial function. See
page 6.

Redial

Press to dial the last
telephone number.

MUTE

FLASH REDIAL PROGRAM

SPEED

ABC DEF

456

GHI JKL MNO

789

TUVPQRS WXYZ

*

#

0

VOLUME

MUTE

ON

DIAL

OFF

CONFERENCE

CALL

Telephone Off

Press to end a call.

Volume Down

Press to lower the audio
level in the room.

Mute Off

Press to turn the mute
function off.

Program

Press for two seconds
to enter Program mode.
See page 5.

Conference Call

This button does not
perform any functions
at this time.

PROGRAM

8

2

2

3

2

Programmable Functions

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

Mute

The default mute command on the AP IR Remote will mute all mic inputs on all
device types and all device IDs. To change this command and to add new commands,
you will need to program the mute function. The AP IR Remote allows you program
up to 10 mute commands which are stored in locations 0–9. The default setting cur­rently stores one mute command in location 0. All stored commands are executed
when the Mute On or Mute Off button is pressed.

The Mute LED on the AP IR Receiver lights to indicate that the programmed
channels have been muted. Please note that the AP IR Receiver references only the
channel programmed in location 0 to determine whether to illuminate the LED. If
location 0 is muted, the LED illuminates.

The GT1524 uses the default programming which mutes only the line and mic inputs.

To program mute commands

1. Press and hold the Program button until the

LEDs in the receiver flash.

2. Press the Mute On button.

3. Select mute command location (0-9).

4. Select the device type (0=device connected

to, 1=AP800, 2=AP10, 3=AP400, *=all
devices).

5. Select the device ID (0–7, *=all units).

6. Select channel for muting (*, 01–08,

11–15). See table at right.

7. Select 4 for input or 6 for output.

To erase a programmed location

• Press Program, Mute On, location (0-9), then

Mute Off.

Mute examples

To store a command to mute all mics on AP800 unit 2 in location 0, enter:

7

Programmable Functions

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Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

To program telephone device type and ID

1. Press and hold the Program button until the LEDs in the receiver flash.

2. Press the On button.

3. Enter device type (0=device connected to, 2=AP10, 3=AP400, *=all tele­phone devices).

4. Enter device ID (0–7, *=all units).

Telephone device type example

To route all telco activity through AP400 unit 2, enter:

The In Use LED on the receiver will illuminate red when the telephone device is in
use.

Speed Dial

The AP IR Remote Control System can store up to ten speed dial numbers for use
with AP and GT1524 telephone devices.

To program speed dial

1. Press and hold the Program button until the LEDs in the receiver flash.

2. Press the Speed Dial button.

3. Select a location (0–9) on the dial pad.

4. Enter the telephone number (use the Volume Up button for a two-second
pause).

5. Press the Speed Dial button to store the number.

To erase a preprogrammed location

• Press Program, Speed Dial, location (0–9), then Speed Dial.

Speed dial example

To store ClearOne’s Technical Service number (1-800-283-5936) in speed dial 0,
enter:

✍

Figure 5. Mute channel codes

PROGRAM

ON

3

2

Device Type Device ID

PROGRAM

2

SPEED DIAL

8

0 1800

3

5

9

3

SPEED DIAL

6

MUTE ON

PROGRAM

0 1

Location Device Type Device ID Channel Input/Output

2

* All Mics

01 Channel 1

02 Channel 2

03 Channel 3

04 Channel 4

05 Channel 5

06 Channel 6

07 Channel 7

08 Channel 8

11 Channel A

12 Channel B

13 Channel C

14 Channel D

15 Channel T

4

*

Programmable Functions

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

Volume control examples

To adjust volume of Output D on all units with a nominal level of 0 and store it in
location 0 (default), enter:

To adjust volume of Mic 1 on AP400 unit 1 with nominal level of -12 and store it in
location 2, enter:

To program volume range/step size

This is a global volume setting so all volume adjustments will have the same range
and step increment.

1. Press and hold the Program button until the LEDs in the receiver flash.

2. Press the Volume Down button.

3. Enter the 2 digit range of the volume (00–20).
A range of 00 disables the adjustment of the volume from the remote control

buttons.

4. Enter the step size—the number of decibels the volume will increase or
decrease each time you press a volume button—by selecting 0–9.

Volume range/step size examples

To change the volume range to ±6dB with 1dB step increments (default), enter:

To change the volume range to ±10dB with 2dB step increments, enter:

9

Programmable Functions

8

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

To store a command to mute Output D on AP400 unit 0 in location 3, enter:

To store a command to mute all mics on AP400 unit 1 in location 2, enter:

Volume Control

If you are using a GT1524, you do not need to program this function.

There are ten locations for storing volume control commands. All volume control
commands are performed when the Volume Up or Volume Down button is pressed.
To change the nominal level to negative, enter an asterisk before the value (e.g. *10
= -10 and 10 = +10).

To program volume control

1. Press and hold the Program button until
the LEDs in the receiver flash.

2. Press the Volume Up button.

3. Select a location for volume control (0-9).

4. Select the device type (0=device connected
to, 1=AP800, 2=AP10, 3=AP400, *=all
devices).

5. Select the device ID (0–7, *=all units).

6. Select channel for volume control (*,
01–08, 11–15) See table to the left.

7. Select 4 for input or 6 for output.

8. Select nominal level (*=negative nominal
level, 00–20).

To erase a preprogrammed location

• Press Program, Volume Up, location (0–9), then Volume Down.

✍

Figure 6. Volume control

channel codes

MUTE ON

PROGRAM

0

3

3

Location Device Type Device ID Channel Input/Output

1

6

4

MUTE ON

PROGRAM

2

Location Device Type Device ID Channel Input/Output

1

3

4

*

* All Mics

01 Channel 1

02 Channel 2

03 Channel 3

04 Channel 4

05 Channel 5

06 Channel 6

07 Channel 7

08 Channel 8

11 Channel A

12 Channel B

13 Channel C

14 Channel D

15 Channel T

PROGRAM

0

*

Location Device Type Device ID Channel Input/Output

1

*

4

60

Nominal Level

0

PROGRAM

1

2

3

Location Device Type Device ID Channel Input/Output

0

4

1

*

Nominal Level

2

1

PROGRAM

0

Range Range Step

PROGRAM

1

Range Range Step

1

6

2

0

Using the AP IR Remote

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

Once your AP IR Receiver is connected to your Audio Perfect system or GT1524
and the Ready LED is lit, you can start using your AP IR Remote. Please consult
the diagram on page 4 to understand how each button on your remote works. The
remote receiver has a range of 25–40 feet. To operate, point the remote control
toward the receiver and press the buttons.

If you push a button and there is no response from the system, check to ensure
that both the AP device and the receiver are connected at the same baud rate. See
page 5 for instructions on how to program the baud rate.

To Place a Call

1. Press the On (green) button. The In Use LED illumi-

nates.

2. Wait to hear dial tone.

3. Dial telephone number using dial pad. Or, press

Speed Dial and the location of the speed dial number.

To End a Call

• Press the Off (red) button. The In Use LED extin-

guishes.

To Adjust the Volume in the Room

• Press the Volume Up and Volume Down buttons to

raise and lower volume.

To Mute

• Press the Mute On button.
The Mute LED will flash on the receiver when the Mute

function is active. If you have not programmed this func­tion, the default programming will mute all microphone
inputs on all devices, all units. To customize mute com­mands, see page 7.

To Turn Off Mute

• Press the Mute Off button.
The Mute LED on the AP IR Receiver will turn off when mute function is off.

11

Programmable Functions

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Hook Flash (AP400 and GT1524 Only)

Hook flash sends a momentary interruption in the line seizure, allowing options such
as 3-way calling, call waiting, and call hold. This feature is dependent on the
services offered by your telephone company.

To program hook flash

1. Press and hold the Program button until the LEDs in the receiver flash.

2. Press the Flash button.

3. Press 1 for 50ms or 2 for 500ms.
This information is stored in the AP400 or GT1524 and not in the AP IR Remote.

Hook flash example

To change the hook flash duration from default (500ms) to 50ms, enter:

AP IR Remote Default Settings

The AP IR Remote Control System comes pre-programmed with default settings for
all of the button functions. You can restore the default settings at anytime. Please
note that you will lose all customized programming if you restore the default settings.

To restore default settings

1. Press and hold the Program button until the LEDs in the receiver flash.

2. Press ****.

Restore default settings example

To restore the AP IR Remote default settings, enter:

Using the AP IR Remote

Figure 7. Remote control

PROGRAM

FLASH

1

123

456

GHI JKL MNO

789

*

OFFON

ABC DEF

TUVPQRS WXYZ

0

#

MUTE

ON

VOLUME

MUTE

OFF

PROGRAM

*

*

*

*

FLASH REDIAL PROGRAM

SPEED

DIAL

CONFERENCE

CALL

Specifications

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

Remote Control System

Range

25–40' (7.5–12 m)
from transmitter to receiver

Angle of acceptance

90°–120°

Operating temperature

0–50° C (32–122°F)

Compliance approvals

FCC, Industry Canada, and
CE

Remote Transmitter

Dimensions (LxWxH)

8" x 2.125" x 1.19"

20.3 cm x 5.4 cm x 3 cm

Battery type

2 AAA

Battery life

Approximately 1 year

Remote Receiver

Dimensions (LxWxH)

5" x 2.75" x 1"
(12.7 cm x 7 cm x 2.54 cm)

Power

Powered by the AP system

Cable length

6' (1.8 m)

13

Using the AP IR Remote

12

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

To Access Features From a PBX

• Press the Flash button.
Please consult your PBX owner’s manual for specific requirements of your individual

phone system.

To Redial the Last Telephone Number Dialed

• Press the Redial button.

To Dial a Number Stored in Speed Dial

1. Press the Speed Dial button.

2. Select location (0–9) of speed dial number.

In order for the speed dial function to work, a telephone number must be programmed
into speed dial. See page 6.

To Customize Your AP IR Remote Control System

Follow the instructions beginning on page 5 to customize your AP IR Remote
Control System to fit your specific conferencing needs.

Conference Call Button

This button does not currently support any functions.

✍

Specifications

Warranty

ClearOne Communications, Inc. (Manufacturer) warrants that this product is free of defects in
both materials and workmanship. Should any part of this product be defective, the
Manufacturer agrees, at its option, to:

A. Repair or replace any defective part free of charge (except transportation charges) for a

period of one year from the date of installation for the end-user, provided the owner returns
the product to the Manufacturer at the address set forth below. No charge will be made for
parts or labor during this period;

B. Furnish replacement for any defective parts in the product for a period of one year from the

date of original purchase. Replacement parts shall be furnished without charge, except
labor and transportation.

This Warranty excludes assembled products not manufactured by the Manufacturer whether or
not they are incorporated in a Manufacturer product or sold under a Manufacturer part or
model number.

THIS WARRANTY IS VOID IF:

A. The product has been damaged by negligence, accident, act of God, or mishandling, or has

not been operated in accordance with the procedures described in the operating and techni­cal instructions; or,

B. The product has been altered or repaired by other than the Manufacturer or an authorized

service representative of the Manufacturer; or,

C. Adaptations or accessories other than those manufactured or provided by the Manufacturer

have been made or attached to the product which, in the determination of the
Manufacturer, shall have affected the performance, safety or reliability of the
product; or,

D. The product’s original serial number has been modified or removed.

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

15

Compliance

14

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

NO OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR USE, APPLIES TO THE
PRODUCT. MANUFACTURER’S MAXIMUM LIABILITY HEREUNDER SHALL BE
THE AMOUNT PAID BY THE END-USER FOR THE PRODUCT. No person or entity
authorized to assume any obligation or other liability in connection with the products. No
action, regardless of form, arising out of or relating to the product or this Warranty, may
be brought by end-user more than one (1) year after the cause of action has accrued.

Manufacturer shall not be liable for punitive, consequential, or incidental damages, expenses,
or loss of revenue or property, inconvenience, or interruption in operation experienced by the
end user due to a malfunction in the purchased product. No warranty service per for med on any
product shall extend the applicable warranty period.

In case of unsatisfactory operation, the end-user shall promptly notify the Manufacturer at the
address set forth below in writing, giving full particulars as to the defects or unsatisfactory
operation. Upon receipt of such notice, the Manufacturer will give instructions respecting the
shipment of the product, or such other matters as it elects to honor this warranty as above pro­vided. This warranty does not cover damage to the product during shipping and the
Manufacturer assumes no responsibility for such damage. All shipping costs shall be paid by
the customer.

This warranty extends only to the original end user and is not assignable or transferable. This
Warranty is governed by the laws of the State of Utah, without regard to the conflicts of inter­ests provisions thereof.

ClearOne Communications, Inc.
1825 Research Way
Salt Lake City, Utah 84119

FCC Part 15 Compliance

This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial envi­ronment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful inter ference
to radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference, in which case the user will be required to correct the interference at
his/her own expense.

Changes or modifications not expressly approved by ClearOne Communications, Inc. could void
the user’s authority to operate the equipment.

Compliance