WARRANTY
Limited Warranty
• This warranty covers defects in materials and workmanship of products manufactured,
sold or certified by Plantronics which were purchased and used in the United States.
• This warranty lasts for one year from the date of purchase of the products.
• This warranty extends to you only if you are the end user with the original purchase
receipt.
• We will, at our option, repair or replace the products that do not conform to the
warranty. We may use functionally equivalent reconditioned/refurbished/remanufactured/
pre-owned or new products or parts.
• To obtain service in the U.S., contact Plantronics at (800) 544-4660 ext. 5538.
• THIS IS PLANTRONICS’ COMPLETE WARRANTY FOR THE PRODUCTS.
• This warranty gives you specific legal rights, and you may also have other rights that
vary from state to state. Please contact your dealer or our service center for the full
details of our limited warranty, including items not covered by this limited warranty.
USER GUIDE
CS50/55
......................................................................................
WIRELESS OFFICE HEADSET SYSTEM
S O U N D I N N O VAT I O N
Plantronics Inc.
345 Encinal Street
Santa Cruz, CA 95060 USA
Tel: (800) 544-4660
www.plantronics.com
©2006 Plantronics, Inc. All rights reserved. Plantronics, the logo design, CS50, CS55. IntelliStand, and
Sound Innovation are trademarks or registered trademarks of Plantronics, Inc. All other trademarks are
the property of their respective owners.
US patents 5,210,791; 6,735,453; 6,903,693; D492,667; Australia 303306; EM 293964; 69109; Patents
Pending.
Printed in USA.
73156-01 (02.06)
TABLE OF CONTENTS
PACKAGE CONTENTS
Package Contents
3
Features
4
Setup
6
Setup - Handset Lifter (Optional)
8
Charging
9
Positioning
9
Adjusting Fit
10
Making/Answering/Ending Calls
11
Checking Compatibility
13
Volume
14
Headset Controls
16
Base Indicator Lights
17
Troubleshooting
18
Subscription
20
System Reset
20
Battery Replacement
21
Additional Parts (If required)
22
Maintenance
23
Technical Assistance
23
Regulatory Notices
23
REGISTER YOUR PRODUCT ONLINE
Headset and Wearing Options
Headset
Earloops
Headband
Base
AC Charger
Telephone Cord
Handset Lifter (Optional)
Additional parts (if required):
Details on page 22.
Visit www.plantronics.com/productregistration to register your CS50/CS55 product online
so we can provide you with the best possible service and technical support.
Handset Lifter
2
CS50
CS55
Ringer
Microphone
Extender Arm
with Stabilizers
For Nortel i2004
phones only
3
FEATURES
FEATURES
Base
Base
- Top
- Top
View
View
Base
Base
- Bottom
- Bottom
View
View
Handset
Handset
Jack Jack
Telephone
Telephone
CS55 CS55
Front:
Front:
Indicator
Indicator
LightsLights
Talking
Talking
(Green)
(Green)
Handset
Handset
Lifter Lifter
Jack Jack
PowerPower
(Red) (Red)
Charging
Charging
(Amber)
(Amber)
AC Charging
AC Charging
Jack Jack
CS50 CS50
Telephone
Telephone
Cord Jack
Cord Jack
Speaking
Speaking
Volume
Volume
Major Major
AdjustAdjust
Charging
Charging
CradleCradle
Telephone
Telephone
Configuration
Configuration
Dial Dial
Headset
Headset
Front:
Front:
Listening
Listening
Volume/Mute
Volume/Mute
Call Control
Call Control
ButtonButton
Rear:Rear:
Talk Indicator
Talk Indicator
Light Light
Speaking
Speaking
Volume
Volume
Minor Minor
AdjustAdjust
Rear:Rear:
Speaker
Speaker
™
™
IntelliStand
IntelliStand
On/OffOn/Off
SwitchSwitch
(to automate
(to automate
call call
control
control
button)
button)
Battery
Battery
Cover Cover
Microphone
Microphone
Handset
Handset
Lifter
Lifter
Listening
Listening
Volume
Volume
Major Major
AdjustAdjust
Telephone
Telephone
Cord Cord
Handset
Handset
Lifter Lifter
Arm Arm
PowerPower
Cord Cord
RingerRinger
Microphone
Microphone
Jack (remove
Jack (remove
cover)cover)
HeightHeight
SwitchSwitch
Accessory
Accessory
Jack Jack
4
5
SETUP
SETUP
1
2
1
2
Unplug the handset cord from phone.
3
3
Plug the phone cord that is connected to
the CS50/CS55 base into the handset jack
on the phone.
CAUTION: Your phone may have two similar
jacks. Put the cord only in the jack from
which the handset came.
4
Base - Bottom View
3A
4A
!
9v
4
Plug the handset cord into the handset
jack in the base. Push in until it clicks.
Plug the AC charger into the base’s AC
charging jack. Push in firmly.
Complete
Plug the handset cord into the handset
jack in the bottom of the base.
See step 3A for detailed location.
Plug the AC charger into an outlet and into
the base’s AC charging jack.
See step 4A for detailed location.
NOTE: The access to the handset jack is
fairly small. If you have large hands you
may want to ask someone with smaller
fingers to do this step.
6
7
SETUP - HANDSET LIFTER (Optional)
1
CHARGING
2
• 20 minutes = minimum
charge to continue setup
1
2
D
C
A
B
1. Plug handset lifter power cord into handset lifter jack on base. Push firmly into base.
2. Position handset lifter under the handset on your phone. Verify that the lifter is located
on top of the telephone speaker. If not, you will need to attach the ringer microphone as
described on page 22.
NOTE: Remove only a tiny piece of mounting tape backing to temporarily stick lifter into
position; you may need to move it later.
3
IntelliStand™
off
3
1. Slide headset into charging cradle.
2. Gently press down on the headset to ensure that headset is in correct position. Amber
charge indicator light on base will flash while charging and will change to solid amber
when fully charged.
POSITIONING
12
”
6”
IntelliStand
on
Set the IntelliStand switch to
Intellistand off ( ) IntelliStand
if you
want to control the handset
off
lifter with the call control
button on your headset.
IntelliStand
• 3 hours = full charge
on
3
1
2
3
4
IntelliStand
off
Set the Intellistand switch to
Intellistand on ( ) IntelliStand
if you
want the handset toon
automatically pick up when you
take the headset off the
charging cradle.
The minimum recommended separation distance is shown above.
IMPORTANT: Incorrect positioning can cause noise and interference problems.
1
2
3
4
8
9
ADJUSTING
FIT
Wearing Options
MAKING/ANSWERING/ENDING CALLS
Without Handset lifter
Retaining
Ring
2
Snap speaker into retaining ring of desired
wearing option (headband or earloop).
1
1. Adjust headband to fit.
2. Rotate headset in retaining ring
until microphone is pointing toward
your chin.
2
1
1
2
To make a call:
1. Take your handset off-hook. Dial tone should sound through handset (if not, check
compatibility — see page 13).
2. Press the call control button on the headset. The talk indicator lights on both the
base and the headset should go on, indicating a successful link. Dial tone should
sound through headset. Dial using the telephone keypad.
To answer a call:
1. Take the handset off-hook.
2. Press the call control button on the headset to answer a call.
To end a call:
Press the call control button on the headset, then hang up the handset.
NOTE: If either you or the recipient have trouble hearing, please check compatibility (page 13).
10
11
MAKING/ANSWERING/ENDING CALLS
With Handset Lifter (Optional)
With Handset Lifter (Optional)
CHECKING COMPATIBILITY
NOTE: The compatibility setting of “1” is set at the factory to work with most phones.
However, if you do not hear a dial tone, if either you or the recipient is having trouble
hearing, or if you experience buzzing/hissing, please follow the directions below.
2
3
4
1
1
2
1
2
2
3
1
4
To first test proper set up of the handset lifter:
1. Press the call control button on headset to activate handset lifter and lift handset from
phone. Dial tone should sound in headset if the handset is raised high enough.
2. If no dial tone, adjust lifter height switch or reposition lifter under handset. If you still
do not hear a dial tone, you may need to insert extender arm (see page 22) or check
compatibility (page 13).
After verifying dial tone, use mounting tape to secure handset lifter in position.
2
2
If you cannot hear a dial tone through your headset, use a coin or small screwdriver to
turn the telephone configuration dial until you can. Make sure that a number is aligned
with the position indicator.
Place a call to someone you know. While speaking, turn the configuration dial through
the four positions. Select the position that provides the best sound quality for both you and
the recipient.
2
1
1
2
2
2
To make/answer a call:
1. Press the call control button to raise the handset lifter.
2. Use the telephone keypad to dial the number.
To end a call:
Press the call control button to lower the handset lifter. (Phone will hang up.)
NOTE: If either you or the recipient have trouble hearing, please check compatibility (page 13).
12
13
LISTENING VOLUME
SPEAKING VOLUME
Note: Be sure to set your telephone’s volume at the mid range before adjusting the
CS50/CS55 volume.
Minor Adjust
Minor Adjust
Major Adjust
Use the speaking volume minor adjust
control on the back of the base for minor
incremental adjustments.
Use the speaking volume major adjust
control on the bottom of the base for
large incremental adjustments.
NOTE: You must be in talk mode (i.e. on a
call) to adjust.
NOTE: A is the lowest setting
B is the most common setting.
D is the loudest setting.
Major Adjust
Rock the headset volume control back and
forth to adjust listening volume in minor
incremental adjustments.
Use listening volume major adjust
control on the back of the base for large
incremental adjustments.
NOTE: You must be in talk mode (i.e. on a
call) to adjust.
NOTE: 1 is the loudest setting.
4 is the lowest setting,
Headset Mute
To mute headset, press the listening volume/mute button straight in. Press again
to unmute.
You will hear 3 rapid beeps every 15 seconds to indicate mute is on.
14
15
HEADSET CONTROLS
BASE INDICATOR LIGHTS
Talking/Muted
(Green)
Talking/Muted
(Green)
Charging (Amber)
Charging (Amber)
Power (Red)
Power (Red)
CS55
Key
Feature
Action
Tone
Listening volume
minor adjust
Rock back
and forth
Ascending/descending
tones, 2 tones at limit
Mute
Short key press
straight in
3 mid tones = Mute
3 low tones = Unmute
NOTE: Tones repeat every
15 seconds when muted.
Making/answering/
ending calls
Short key press
Mid tone
—
Low battery
warning
Return headset
to charging cradle
1 tone every 10 seconds
—
Out of range
warning—when
on active call
Move closer
to base
2 tones
—
Incoming call
notification*
Press call control
button to answer call
3 repetitive tones
CS50
Action
Light
Charging
Flashes amber
Fully Charged
Solid amber
Power
Solid red
Talking
Solid green
Muted
Flashes green
*Only works when using optional Handset Lifter.
16
17
TROUBLESHOOTING
Problem
I plugged everything in
but the lights won’t
come on.
• Check that the AC charger jack is connected to the base unit.
• Check that the AC charger is securely connected to a working
wall outlet.
• Check that the AC charger is the model supplied by Plantronics.
My headset does
not work with the
base unit.
• Check that the phone is connected to the base unit’s phone cord
jack and it is pushed in firmly.
• Check that the phone handset is connected to the base’s phone
handset jack and it is pushed in firmly.
• Headset may be out of range of the base. Move closer to base
unit until headset is within range. Range varies with office
environment.
• Headset battery is dead. Recharge the battery by placing the
headset in the headset charging cradle. See page 9.
• Listening volume too low. Press the volume up button on the
headset. If the volume is still too low, select another listening
volume major adjust switch setting. See page 14.
• Incorrect configuration dial setting for your phone. Try other
configuration dial settings on the base unit. Ensure the selected
number is in line with the position indicator. See page 13.
• You may have to resubscribe your headset with the base. See
page 20.
Callers cannot
hear me.
I can hear a dial tone in
more than one
configuration position.
• Headset is muted. Press the mute button on headset to unmute
the microphone. See page 15.
• Improper positioning of microphone. Point microphone
towards your chin.
• Speak volume is too low. Increase the speaking volume by
adjusting the speaking volume minor adjust buttons on the
base unit as described on page 15. If the volume is still too low,
select another speaking volume major adjust setting as
described on page 15.
• Incorrect configuration dial setting for your phone. Try other
configuration dial settings on the base unit. Ensure the selected
number is in line with the position indicator. See page 13.
Phone will work in more than one configuration dial position. Use
the position that sounds best to you and the person you call.
I cannot hear a dial tone
in any configuration
position.
• Check that the phone is connected to the base’s phone cord jack.
See page 6.
• Check that the phone handset is connected to the base’s phone
handset jack. See page 6.
I cannot hear
caller/dial tone.
• Check that all cords and jacks are connected correctly.
• Check that the base has power (red indicator light) and the
headset battery is fully charged.
• Try other phone configuration dial settings on the base unit. Ensure
the selected number is in line with the position indicator. See page 13.
• Ensure you are in headset mode. Press the call control button to
select correct mode. The talk indicator light on the base is green.
Headset is uncomfortable
when worn in over-the-ear
mode.
18
Solution
Try changing earloop sizes. Experiment to find the best fit.
TROUBLESHOOTING
Problem
Sound in handset is
distorted/I hear echo in
handset.
I can hear too much
background conversation,
noise or sidetone.
People I talk to can
hear a buzz in the
background.
Solution
• Reduce speaking volume by changing the speaking volume
major adjust switch setting. See page 15.
• Point microphone towards your chin.
• Listening volume too high on phone. If your phone has a handset
volume control, lower this until the distortion disappears.
• If the distortion is still present, lower the listening volume adjust
button on the headset. If the distortion persists, select another
listening volume major adjust switch setting. See page 14.
• Base is too close to computer or phone. See page 9 for
proper positioning.
• System needs to be reset. Perform system reset as described
on page 20.
Speaking volume is too high. Lower the speaking volume by
adjusting the speaking volume minor adjust buttons on the base.
If the volume is still too high, select another speaking volume
major adjust setting. See page 15.
• Move the CS50/55 base further away from your phone.
• AC charger is plugged into a power strip. Plug the AC charger
into the wall directly.
• Picking up another radio frequency. Call the Plantronics
Technical Assistance Center for an RF filter.
Battery talk time
performance is
significantly degraded
even after a full recharge.
Battery is going bad. Replace the battery with a new battery
pack. See page 21.
The call is dropped.
(Talk indicator on the
headset and base will
not be illuminated.)
Headset lost subscription. Try to reset the system. See page
20. If this does not work, try the resubscription procedure on
page 20.
I hear static that
does not allow me to
communicate.
• Link to headset is lost. Try to reestablish a link by pressing the
call control button.
• Unplug the AC charger from the base for 5 seconds, then plug
back in.
• Reset the whole system as described on page 20.
I hear beeps in
the headset.
• One beep every 10 seconds is caused by a low battery warning.
Recharge battery by returning it to the base charge cradle for
one to three hours until charge light stays lit or quits blinking.
• Two beeps is an out of range warning. Move closer to the base.
• Three rapid beeps every 15 seconds indicates your mute is on.
Press the mute button once to turn mute off.
• When an optional lifter is connected, three repetitive beeps
indicate a call is coming into the headset. Press the call control
button on the headset to answer the call.
Handset lifter is installed
but does not lift handset.
Be sure the handset lifter power cord is firmly pushed into the
handset lifter jack on the base.
My handset lifter operates
every time I remove or
replace my headset in the
base unit.
IntelliStand is enabled. To disable the handset lifter, move the
IntelliStand switch to position .
19
SUBSCRIPTION
BATTERY REPLACEMENT
The headset and base unit are supplied subscribed to each other. However, if you wish to use a
replacement headset with the base unit, then the units must be re-subscribed as follows:
3
The custom battery inside the headset should last 2-3 years. When talk time decreases
significantly, you should replace the battery. Call Plantronics at (800) 544-4660 ext.5538 to
order one. Once you receive it, follow directions below to replace.
1
1
2
2
1
2
1
4
Return the headset to the charging cradle.
1. Press and hold both speaking
volume fine tune buttons on the base
unit for a minimum of 5 seconds. The
power indicator will then flash red.
2. Press and hold the headset mute
button for a minimum of 5 seconds.
The talk indicator light on the
headset will then illuminate green.
SYSTEM RESET
Successful re-subscription is indicated
when the base power indicator is fully
illuminated and the headset talk indicator
light is off.
3. Disconnect the AC charger from the
AC charging jack for 5 seconds.
4. Reconnect.
If re-subscription fails within 2 minutes, the
headset will return to the un-subscribed
state. Try the re-subscription process again
or call Technical Support.
To recover from some fault conditions (refer to Troubleshooting on page 18), you may need to
perform a system reset.
1
Pinch both sides of the battery cover and
lift to remove.
3
3
4
4
3
1
2
4
Reconnect and install the new battery.
1. Press both the call control button
and the listening volume/mute button for 5 seconds. When the talk
indicator light blinks, release both
buttons.
2. Press the call control button again.
The talk indicator light will again
blink briefly to indicate the headset is
back to normal operation.
20
Slide the battery out and gently separate
at the connection. DO NOT pull the battery
out by the wires.
3. Disconnect the AC charger from the
AC charging jack for 5 seconds.
4. Reconnect.
The system reset operation is complete.
Pinch both sides of the battery cover
and replace.
21
Extender Arm Stabilizers
ADDITIONAL PARTS
Stabilizers(If required)
2
1
2
Extender Arm
1
Stabilizers
2
2
2
1
2
MAINTENANCE
1. Unplug the unit from the telephone and the AC charger from the power source
before cleaning.
2. Clean the equipment with a damp (not wet) cloth.
3. Do not use solvents or other cleaning agents.
TECHNICAL ASSISTANCE
Visit our Web site at www.plantronics.com/support for technical support, including
frequently asked questions, compatibility and accessibility information. The Plantronics
Technical Assistance Center (TAC) is also ready to assist you at 800-544-4660 ext. 5538.
REGULATORY NOTICES
FCC Requirements
Use extender arm when the handset lifter needs additional stability lifting and
returning to cradle.
1. Slide extender arm onto lifter.
2. Stabilizers can be shifted left and right. Position stabilizers on outsides of handset to
gently grip the phone.
Ringer Microphone
Ringer Microphone
3
1
3
1
Ringer
Microphone
1
2
3
2
Use ringer microphone when the telephone speaker is not
located directly under the handset.
2
1. Remove cover from ringer microphone jack on back of lifter.
2. Connect ringer microphone plug.
3. Place ringer microphone over phone speaker. Remove adhesive tape and attach.
For Nortel i2004 phones only
For Nortel i2004 phones only
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.
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 in a residential installation. This equipment generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception which can be determined by
turning the radio or television off and on, the user is encouraged to try to correct interference by one or more
of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on another circuit.
4. Consult the dealer or an experienced radio/TV technician for help.
FCC REGISTRATION INFORMATION — Part 68
This equipment complies with Part 68 of the FCC rules and the requirements adopted by ACTA. On the exterior
of this equipment is a label that contains a product identifier in the format US:AAAEQ##TXXXX. If requested,
this information must be provided to your telephone company.
A plug and jack used to connect this equipment to the premises wiring and telephone network must comply
with the applicable FCC Part 68 rules and requirements adopted by ACTA. A compliant telephone cord and
modular plug is provided with this product. It is designed to be connected to a compatible jack that is also
compliant. See installation instructions for details.
The REN is useful to determine the quantity of devices you may connect to your telephone line. Excessive
RENs on a telephone line may result in the devices not ringing in response to an incoming call. In most, but
not all areas, the sum of the RENs should not exceed five (5.0). To be certain of the number of devices you
may connect to your line, as determined by the REN, contact your local telephone company. For product
approved after July 23, 2001, the REN for this product is part of the product identifier that has the format
US:AAAEQ##TXXXX. The digits represented by ### are the REN without the decimal point. (For example, 03
represents a REN of 0.3.) For earlier producers, the REN is separately shown on the label.
If this telephone equipment causes harm to the telephone network, the telephone company will notify you in
advance that temporary discontinuance of service may be required. But if advance notice isn’t practical, the
telephone company will notify the customer as soon as possible. Also, you will be advised of your right to file a
complaint with the FCC if you believe it is necessary.
The telephone company may make changes in its facilities, equipment, operations, or procedures that could
affect the proper functioning of your equipment. If they do, you will be notified in advance in order for you to
make necessary modifications to maintain uninterrupted service.
If trouble is experienced with this unit, for repair or warranty information, please contact customer service at
(800) 544-4660. If the equipment is causing harm to the network, the telephone company may request that you
disconnect the equipment until the problem is resolved.
DO NOT DISASSEMBLE THIS EQUIPMENT: it does not contain any user serviceable components.
We recommend the installation of an AC surge arrester in the AC outlet to which this equipment is connected.
Telephone companies report that electrical surges, typically lighting transients, are very destructive to customer
terminal equipment connected to AC power sources.
NOTE: Changes or modifications not expressly approved by Plantronics, Inc. could void the user's authority to
operate the equipment.
Exposure to RF Radiation
For Nortel i2004 phones only
22
The internal wireless radio operates within the guidelines found in radio frequency safety standards and
recommendations, which reflect the consensus of the scientific community. Independent studies have shown
that the internal wireless radio is safe for use by consumers. Visit www.plantronics.com for more information.
23
WARRANTY
Limited Warranty
• This warranty covers defects in materials and workmanship of products manufactured,
sold or certified by Plantronics which were purchased and used in the United States.
• This warranty lasts for one year from the date of purchase of the products.
• This warranty extends to you only if you are the end user with the original purchase
receipt.
• We will, at our option, repair or replace the products that do not conform to the
warranty. We may use functionally equivalent reconditioned/refurbished/remanufactured/
pre-owned or new products or parts.
• To obtain service in the U.S., contact Plantronics at (800) 544-4660 ext. 5538.
• THIS IS PLANTRONICS’ COMPLETE WARRANTY FOR THE PRODUCTS.
• This warranty gives you specific legal rights, and you may also have other rights that
vary from state to state. Please contact your dealer or our service center for the full
details of our limited warranty, including items not covered by this limited warranty.
USER GUIDE
CS50/55
......................................................................................
WIRELESS OFFICE HEADSET SYSTEM
S O U N D I N N O VAT I O N
Plantronics Inc.
345 Encinal Street
Santa Cruz, CA 95060 USA
Tel: (800) 544-4660
www.plantronics.com
©2006 Plantronics, Inc. All rights reserved. Plantronics, the logo design, CS50, CS55. IntelliStand, and
Sound Innovation are trademarks or registered trademarks of Plantronics, Inc. All other trademarks are
the property of their respective owners.
US patents 5,210,791; 6,735,453; 6,903,693; D492,667; Australia 303306; EM 293964; 69109; Patents
Pending.
Printed in USA.
73156-01 (02.06)
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