NEC Dterm Cordless Lite II User manual

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OWNER’SGUIDE
INT-1018
(DTERM)
Document Revision 2
Dterm Cordless Lite II
(DTH-4R-1)
®

NEC Unified Solutions, Inc. reserves the right to change the specifications,
functions, or features, at any time, without notice.
NEC Unified Solutions, Inc. has prepared this document for the use by its
employees and customers. The information contained herein is the property of
NEC Unified Solutions, Inc. and shall not be reproduced without prior written
approval from NEC Unified Solutions, Inc.
Dterm is a registered trademark of NEC Corporation. Electra Elite is a registered
trademark of NEC America, Inc.
AutoStandby and AutoTalk are trademarks of Uniden America Corporation.
Copyright 2004
NEC Infrontia, Inc.
6535 N. State Highway 161
Irving, TX 75039-2402
Technology Development

Table of Contents
Dterm Cordless Lite II Owner’s Guide i
Chapter 1 Specifications and Safety Information
Section 1 Specifications ..................................................................... 1-1
General ................................................................................... 1-1
Base Unit ................................................................................ 1-1
Handset ................................................................................. 1-1
Battery Charger ...................................................................... 1-2
Section 2 Battery Safety .................................................................... 1-2
Section 3 Important Safety Instructions .............................................. 1-3
Section 4 Important Electrical Considerations .................................... 1-5
Range ...................................................................................... 1-6
Telephone Line Problems ........................................................ 1-6
Radio Interference ................................................................... 1-6
More than One Cordless Telephone ....................................... 1-7
Chapter 2 About the Dterm Cordless Lite II
Section 1 Items Included with the Dterm Cordless Lite II ................... 2-1
Section 2 Features of the Cordless Telephone .................................. 2-2
Section 3 Dterm Cordless Lite II Controls and Functions ................... 2-3

Document Revision 2 NEC Unified Solutions, Inc.
ii Table of Contents
Chapter 3 Installing the Dterm Cordless Lite II
Section 1 Selecting a Location ........................................................... 3-1
Section 2 Installation Precautions ...................................................... 3-1
Section 3 Connecting the Telephone Cords ....................................... 3-1
Section 4 Applying Power to the Charging Unit .................................. 3-3
Section 5 Wall Installation .................................................................. 3-4
Standard Wall Plate Mounting ................................................. 3-4
Direct Wall Mounting ................................................................ 3-7
Charging Unit Wall Mounting ................................................. 3-10
Section 6 Attaching and Removing the Belt Clip .............................. 3-11
Section 7 Installing the Handset Battery Pack .................................. 3-12
Section 8 Charging Batteries ............................................................ 3-14
Charging the Handset Battery Pack ...................................... 3-14
Battery Hot Swap ................................................................... 3-14
Low Battery Indicator ............................................................. 3-15
Standby Mode ........................................................................ 3-15
Talk Mode .............................................................................. 3-15
Section 9 Cleaning the Battery Charge Contacts ............................. 3-16
Section 10 Antenna ............................................................................ 3-17
Chapter 4 Dterm Cordless Lite II Handset
Section 1 Handset Controls ................................................................ 4-1
Section 2 Setting Up and Programming the DTR-4R-1 ...................... 4-4

Dterm Cordless Lite II Owner’s Guide iii
NEC Unified Solutions, Inc. Document Revision 2
Programming Mode ............................................................... 4-4
Switching Between the Desktop Multiline Telephone
and the Cordless Telephone Using the Base Unit ................. 4-5
Switching from Desk to Cordless Using a Softkey .................. 4-6
Section 3 Using the Handset .............................................................. 4-7
Acquiring Link .......................................................................... 4-7
Volume Low ............................................................................. 4-8
Dialing ...................................................................................... 4-8
No Service ............................................................................... 4-8
Section 4 Answering a Call ................................................................. 4-9
Section 5 Making a Call Using the Dterm Cordless Lite II ............... 4-10
Section 6 Dedicated Feature Operations ......................................... 4-10
Placing a Call on Hold ........................................................... 4-11
Muting a Call .......................................................................... 4-11
Transferring Calls .................................................................. 4-11
Setting up a Conference Call ................................................. 4-12
Chapter 5 Optional Equipment Installation
Section 1 Optional Accessories and Replacement Parts ................... 5-1
Section 2 Installing the Optional Headset ........................................... 5-1
Chapter 6 Troubleshooting

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List of Figures and Tables
Dterm Cordless Lite II Owner’s Guide v
Figure 2-1 Items Included with the Dterm Cordless Lite II ........................................ 2-1
Figure 2-2 Handset Controls and Functions ............................................................ 2-3
Figure 2-3 Base Unit Controls and Functions .......................................................... 2-4
Figure 3-1 Connecting Telephone Cords to the Telephone Jack ............................ 3-2
Figure 3-2 Connecting the Dterm Cordless Lite II to the Multiline Terminal .............. 3-2
Figure 3-3 Applying Power to the Charging Unit ..................................................... 3-3
Figure 3-4 Polarized Plug ........................................................................................ 3-4
Figure 3-5 Attaching the Wall Mount Stand to the Base Unit .................................. 3-5
Figure 3-6 Placing the AC Adapter Cord Inside the Wall Mount Stand ................... 3-5
Figure 3-7 Placing the Base Unit on the Posts of the Wall Plate ............................. 3-6
Figure 3-8 Plugging the AC Adapter into the AC Wall Outlet .................................. 3-7
Figure 3-9 Inserting Screws into the Wall for Wall Mounting the Telephone ........... 3-8
Figure 3-10 Placing the Telephone Cords into Inside the Wall Mount Stand ............ 3-9
Figure 3-11 Attaching the Wall Mount Unit to the Wall .............................................. 3-9
Figure 3-12 Inserting Screws for Wall Mounting ...................................................... 3-10
Figure 3-13 Wrapping the AC Adapter Cord Around the Strain Relief Clip ............. 3-11
Figure 3-14 Attaching the Belt Clip to the Handset ................................................. 3-12

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vi List of Figures
Figure 3-15 Removing the Belt Clip ......................................................................... 3-12
Figure 3-16 Removing the Battery Cover ................................................................ 3-13
Figure 3-17 Replacing the Battery Pack .................................................................. 3-13
Figure 3-18 Replacing the Battery Cover ................................................................ 3-14
Table 3-1 Low Battery .......................................................................................... 3-16
Figure 3-19 Cleaning Battery Charge Contacts ....................................................... 3-16
Figure 3-20 Raising the Base Unit Antenna ............................................................ 3-17
Figure 4-1 Handset Controls ................................................................................... 4-1
Table 4-1 Handset Control Functions ..................................................................... 4-2
Figure 4-2 Cordless and Desk Buttons .................................................................... 4-5
Table 4-2 LCD Display Indicators ........................................................................... 4-7
Table 4-3 No Service Conditions ............................................................................ 4-8
Figure 5-1 Optional Accessories and Replacement Parts ....................................... 5-1
Figure 5-2 Installing the Headset ............................................................................. 5-2
Table 6-1 Troubleshooting ..................................................................................... 6-1

Dterm Cordless Lite II Owner’s Guide 1 - 1
Specifications and Safety
Information Chapter 1
SECTION 1 SPECIFICATIONS
The Dterm Cordless Lite II complies with FCC and IC parts 15.
General
Base Unit
Handset
Frequency Control Phase Lock Loop
Modulation 900 MHz FM with ADPMC (digital)
Operating Temperature 0°~ +50°C (+32°F to +122°F)
Bandwidth 50 kHz
Data Transmission Speed 688 bps
Receive/Transmit Frequency 902 MHz ~ 928 MHz
Power Requirements 10 Vdc from supplied AC adapter
Size 4-1/4 in. W x 7-5/8 in. D x 2-1/4 in. H
Weight Approximately 13.7 oz.
Receive/Transmit Frequency 902 MHz ~ 928 MHz
Power Requirements NiMH Battery
Size 2 in. W x 1-1/4 in. D x 5-1/2 in. H
(with antenna)

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1 - 2 Specifications and Safety Information
Battery Charger
SECTION 2 BATTERY SAFETY
 This equipment contains a rechargeable NiMH battery.
 Do not short-circuit the battery.
 Do not charge the rechargeable NiMH battery used in this equipmentin any
charger other than as specified in this manual. Using another charger can
damage the battery or cause the battery to explode.
 Use only the applicable type and size battery pack specified in this manual.
 Do not open or mutilate the battery pack. Released electrolyte is corrosive
and can damage the eyes or skin. It may be toxic if swallowed.
 Exercise care in handling the battery to avoid shorting it with conducting
materials such as rings, bracelets, and buttons. The battery or conductor
can overheat and cause burns.
 Charge the battery pack provided with or identified for use with this product
only in accordance with the instructions and limitations specified in the
instruction manual provided for this product.
 Observe proper polarity orientation between the battery pack and battery
charger.
Weight Approximately 5.2 oz with battery
Battery Capacity 700 mAh, 3.6V
Talk Mode 6 hours (typical)
Standby Mode 5 days (typical)
Specifications shown are typical and subject to change without notice.
Power Requirements 9V DC from supplied AC adapter
Size 1-3/8 in. W x 1-1/2 in. D x 2-1/4 in. H
To reduce the risk of fire or injury to persons by the battery,
read and follow these instructions.

Dterm Cordless Lite II Owner’s Guide 1 - 3
NEC Unified Solutions, Inc. Document Revision 2
 Do not dispose of the battery pack in a fire, the cell may explode.
 Do not place the batteries in your regular trash. NiMH batteries must be
collected, recycled, or disposed of in an environmentally sound manner.
Contact your local waste management officials for other information
regarding the environmentally sound collection, recycling and disposal of
the battery contained in this product.
SECTION 3 IMPORTANT SAFETY INSTRUCTIONS
When using the telephone equipment, basic safety precautions should always
be followed to reduce the risk of fire, electrical shock, and injury to persons,
including the following:
 Read and understand all instructions.
 Follow all warnings and instructions marked on the product.
 Unplug this product from the wall outlet before cleaning. Do not use liquid
or aerosol cleaners. Use a dry cloth for cleaning.
 Do not use this product near a sink or in a wet area.
 Do not place this product on an unstable cart, stand, or table. The
telephone can fall, causing serious damage to the unit.
 To protect the product from overheating, do not block or cover any slots or
openings in the base unit. This product should never be placed near or
over a radiator or heat register. This product should not be placed in a built-
in installation unless the proper ventilation is provided.
 This product should be operated only from the power source indicated on
the marking label.
 Do not allow anything to rest on the power cord. Do not locate this product
where people can walk on it.
 Do not overload wall outlets and extension cords, because of the risk of fire
or electrical shock.

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1 - 4 Specifications and Safety Information
 Never push objects of any kind into this product through the base unit slots,
as they may touch dangerous voltage points or short out parts that could
result in a risk of fire or electrical shock. Never spill liquid of any kind on the
product.
 To reduce the risk of electric shock, do not disassemble this product.
Contact qualified service personnel when some service or repair work is
required. Opening or removing covers may expose you to dangerous
voltages or other risks. Incorrect reassembly can cause electric shock
when the appliance is subsequently used.
 Unplug this product from the wall outlet and refer servicing to qualified
service personnel under the following conditions:
• When the power supply cord is damaged or frayed.
• If liquid has been spilled onto the product.
• If the product has been exposed to water or rain.
• If the product does not operate normally when following the operating
instructions. Adjust only those controls that are covered by the
operating instructions. Improper adjustment of other controls can result
in damage, and will often require extensive work by a qualified
technician to restore the product to normal operation.
• If the product has been dropped, or the cabinet has been damaged.
 If the product exhibits a distinct change in performance.
 Do not use the telephone to report a gas leak in the vicinity or the leak.
 To reduce the risk of fire or injury to persons by the battery, read and follow
these instructions.
• Use only the appropriate type and size battery pack specified in the
manual.
• Exercise care in handling the battery in order not to short the battery
with conducting materials such as rings, bracelets, and buttons. The
battery or conductor can overheat and cause burns.
Caution: To reduce the risk of fire or injury to persons by
the battery, read and follow these instructions:
1. Use only the appropriate type and size Battery Pack specified in this
Owner’s Guide.
2. Do not dispose of the Battery Pack in a fire. The cell may explode.

Dterm Cordless Lite II Owner’s Guide 1 - 5
NEC Unified Solutions, Inc. Document Revision 2
3. Do not open or mutilate the Battery Pack. Released electrolyte is corrosive
and may cause damage to the eyes or skin. It may be toxic if swallowed.
4. Exercise care in handling the battery in order not to short the battery with
conducting materials such as rings, bracelets, and keys. The battery or
conductor may overheat and cause burns.
5. Charge the Battery Pack provided with or identified for use with this product
only in accordance with the instructions and limitiations specified in the
instruction manual provided for this product.
6. Observe proper polarity orientation between the Battery Pack and battery
charger.
SAVE THESE INSTRUCTIONS!
Privacy
Cordless telephones are radio devices. Communications between the
handset and base of the cordless telephone are accomplished by means of
radio waves which are broadcast over the open airways. Because of the
inherent physical properties of radio waves, communication can be received
by radio receiving devices other than your own telephone unit, consequently,
any communications using the cordless telephone may not be private.
SECTION 4 IMPORTANT ELECTRICAL CONSIDERATIONS
Unplug all electrical appliances when you know an electrical storm is
approaching. Lightning can pass through your household wiring and damage
any device connected to it. This telephone is no exception.
Caution:
Changes or modifications to this product not expressly approved by NEC
America, Inc., or operation of this product in any way other than as detailed
by this manual, could void your authority to operate this product.
Do not attempt to unplug any appliance during an electrical
storm.

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1 - 6 Specifications and Safety Information
Range
The new telephone is designed to achieve a maximum range for transmitting
and receiving (depending upon the environment) according to the highest
specifications set forth by the FCC. We have rated this phone to operate at a
maximum distance with the qualification that the range depends upon the
environment in which the telephone is used. Many factors limit range, and it
would be impossible to include all of the variables in our rating. The maximum
range rating of this telephone is meant to be used as a means of comparison
against other range claims.
Telephone Line Problems
The FCC has granted the telephone company the right to disconnect service
in the event that your telephone causes problems on the telephone line. Also,
the telephone company may make changes in facilities and services which
can affect the operation of your unit. However, your telephone company must
give adequate notice in writing prior to such actions to allow you time for
making necessary arrangements to continue uninterrupted service.
If you are having trouble with your telephone service, you must first
disconnect your telephone to determine if it is the cause of your problem. If
you determine that it is the cause, you must leave it disconnected until the
trouble has been corrected.
Radio Interference
Radio interference may occasionally cause buzzing and humming in your
cordless handset, or clicking noises in the base unit. This interference is
caused by external sources such as TV, fluorescent lighting, or electrical
storm. Your unit is NOT DEFECTIVE. If these noises continue and are too
distracting, check around your office to see what appliances may be causing
the problem. In addition, we recommend that the base not be plugged into a
circuit that also powers a major appliance because of the potential of
interference. For best performance, ensure that the antenna on the base unit
is fully extended.
In the unlikely event that you consistently hear other voices or distracting
transmissions on your telephone, you may be receiving radio signals for
another cordless telephone or other source of interference. If you cannot
eliminate this type of interference, you need to change to a different channel.

Dterm Cordless Lite II Owner’s Guide 1 - 7
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Finally, it should be noted that some cordless telephones operate at
frequencies that may cause interference to nearby TVs and VCRs. To
minimize or prevent such interference, the base of the cordless telephone
should not be placed near or on top of a TV or VCR. If interference is
experienced, moving the cordless telephone farther away from the TV or VCR
will often reduce or eliminate the interference.
More than One Cordless Telephone
If you want to use more than one cordless telephone in your office, they must
operate on different channels and be 20 feet apart. Press the channel key to
select a channel that provides the clearest communication.
Depending on your environment, the maximum number of cordless devices
used without interference varies.
Multiple base and handset units should not be closer than 20 feet at any time.
Radio interference causes interruptions in conversation. When this happens,
your unit is not defective. When noise continues, move to a different location
while you talk. (You might even need to move the base unit.) When the
situation persists, contact National Technical Assistance Center.

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Dterm Cordless Lite II Owner’s Guide 2 - 1
About the Dterm Cordless Lite II Chapter 2
SECTION 1 ITEMS INCLUDED WITH THE Dterm CORDLESS LITE II
Congratulations on your purchase of the Dterm Cordless Lite II. This
telephone is designed and engineered to exacting standards for reliability,
long life, and outstanding performance. To become familiar with the features
of the cordless telephone, read this manual thoroughly.
The Dterm Cordless Lite II includes the following items:
Figure 2-1 Items Included with the Dterm Cordless Lite II
Base Unit Handset
Telephone
2 AC Adapters
Rechargeable
Battery
Belt Clip
Wall Plate
Adapter
Charging Unit
Charging Unit
Stand