Nortel T7406 Cordless Telephone Installation Guide

							Part No. P094225
T7406 Cordless Telephone
Installation Guide
Read all documentation before proceeding with installation of this 
unit.
Warning: First-time battery charge
Follow this procedure for the first-time charge of your handset battery packs 
and when you first set up your T7406 system. Failure to follow all of these 
steps can result in operational difficulties.
Ensure that the battery pack is fully charged before you attempt to use your 
T7406 handset for the first time. 
• Charge the battery pack in the rear port of the charger for a 
minimum of 30 minutes.
 Install the battery pack in the handset.
 Put the handset into the front port of the charger and charge the 
battery pack in the handset for a minimum of three hours.
 Trickle charge a spare battery pack in the rear battery port of the 
charger for 12 hours.
Ensure you configure the handsets in an orderly fashion. If you are 
configuring a number of handsets, ensure the battery packs for all the 
handsets are charged before you start configuring the handsets to the base 
station.
Refer to Handset Configuration on page 27.
Par t No. P0606142 01 
						

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P0606142 01
© 2003, Nortel Networks, Nashville, TN 37228. ALL RIGHTS 
RESERVED.
For further information, call your technical support team or a Nortel 
Networks Sales representative.
Nortel, the Nortel globemark, Norstar, and Business Communications 
Manager are trademarks of Nortel Networks. All other trademarks are 
property of their respective owners. All information is subject to 
charge. Nortel Networks reserves the right, without notice, to change 
its products as progress in engineering or manufacturing methods or 
any other circumstances may warrant. 
						

							Contents / 3
T7406 Installation Guide
Contents
Provisioning the T7406  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Operational Bandwidths  . . . . . . . . . . . . . . . . . . . . . . . . 7
Operational Parameters  . . . . . . . . . . . . . . . . . . . 7
Installation Site Parameters . . . . . . . . . . . . . . . . . . . . . . 8
RF LANs (Radio Frequency Local Area Networks)   . . 9
Telephone-to-Base Range  . . . . . . . . . . . . . . . . . . . . . . . 9
Environmental Layout Considerations  . . . . . . . . . . . . . 10
Environments Unsuitable for the T7406  . . . . . . 12
Powering the T7406   . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Battery Charge Controller  . . . . . . . . . . . . . . . . . 13
Specifications   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Important battery pack information . . . . . . . . . . . . . . . . . . . 15
About your T7406 telephone   . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Radio range and coverage considerations  . . . . . . . . . . . 16
Security of Conversation . . . . . . . . . . . . . . . . . . . . . . . . 16
Density and Interference  . . . . . . . . . . . . . . . . . . . . . . . . 16
Spare Parts   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
T7406 Parts Lists   . . . . . . . . . . . . . . . . . . . . . . . 17
Handset Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Handset Signal Detection  . . . . . . . . . . . . . . . . . . . . . . . 19
Handset Features  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Installing the Base Station   . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Base Station Features   . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Antenna  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Mounting Bracket  . . . . . . . . . . . . . . . . . . . . . . . 22
T7406 Pre-installation Programming  . . . . . . . . . . . . . . 22
Before you start  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Mounting and Connecting the Base Station  . . . 23 
						

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P0606142 01
Charging the T7406 Battery Pack  . . . . . . . . . . . . . . . . . . . . . . .24
First-time Charging  . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Handset Power  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Low battery   . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Recharge   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Battery levels  . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Handset Configuration  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Important First-time Installation Information  . . . . . . . .27
Identifying the Handsets to the System  . . . . . . .28
Assigning the Handset to the Base Station   . . . .29
Using the Handset Display Buttons  . . . . . . . . . . . . . . . .30
Configuring the First Handset to a Base Station  . . . . . .30
Configuring the Handset ID Number   . . . . . . . .30
Changing the Handset ID Password   . . . . . . . . .31
Assigning the Security Code  . . . . . . . . . . . . . . .32
Configure the next handset to the base station   . . . . . . .33
Setting Handset Features  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Ring Type   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Ringer Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Lock Handset  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Language  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Handset System Feature Notes   . . . . . . . . . . . . . . . . . . .35
Button Mapping on the Handset   . . . . . . . . . . . . . . . . . . . . . . . .37
Memory buttons  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Programming memory buttons   . . . . . . . . . . . . .39
Button Inquiry  . . . . . . . . . . . . . . . . . . . . . . . . . .40
System Feature codes   . . . . . . . . . . . . . . . . . . . .40
Handset Asleep (Save Battery Mode)  . . . . . . . . . . . . . .41
Handset Asleep Mode Feature Conditions   . .41
Make and Answer Calls  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Make a call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Answer calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 
						

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T7406 Installation Guide
Hold calls   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Mute microphone   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Page  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Customize a handset  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Backlight On/Off   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Helpful hints  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Cleaning battery contacts   . . . . . . . . . . . . . . . . . . . . . . . 46
Installing the T7406 Handset Accessories   . . . . . . . . . . . . . . . . 47
Optional accessories  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Leather carrying cases . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Headset Compatibility   . . . . . . . . . . . . . . . . . . . . . . . . . 49
Headset installation  . . . . . . . . . . . . . . . . . . . . . . 50
Regulatory information  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Canadian Regulations  . . . . . . . . . . . . . . . . . . . . . . . . . . 51
US Regulations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Federal Communications Commission (FCC) 
Notice   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
EMI/EMC (FCC Part 15) . . . . . . . . . . . . . . . . . . . . . . 52
For Class A Host equipment   . . . . . . . . . . . . . 52
For Class B Host equipment   . . . . . . . . . . . . . 53
Safety   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Important Safety Instructions  . . . . . . . . . . . . . . . . . . . . 53
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Use   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 
						

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P0606142 01 
						

							Provisioning the T7406 / 7
T7406 Installation Guide
Provisioning the T7406
This chapter provides specification and provisioning information for 
the T7406 cordless system.
The T7406 is a Frequency Hopping Spread Spectrum (FHSS) cordless 
telephone. The benefits of this technology are: improved range, 
robustness and, less susceptibility to interference, fading and multipath.
The use of a common wall-mounted base station for multiple handsets 
allows you to position the base antennas for maximum performance and 
coverage. The indoor range of the T7406 is 95 meters (300 feet) in a 
typical office environment. This range may vary with differing 
environments.
Operational Bandwidths
The T7406 cordless telephone operates in the ISM (Industrial, 
Scientific, and Medical) 902-928 MHz band. The T7406 divides the 
ISM band into two sets of operating frequencies to allow the 
coexistence of other ISM devices. Examples of these products are SKU 
scanners and remote controls for products such as garage door openers 
and home theatre systems. Note that, since the T7406 is a frequency 
hopper, it uses at least half of the available frequencies in the ISM band 
for operation and can make it difficult for other 900 MHz devices to 
operate correctly. The following table identifies the frequencies used 
for the upper and lower bands of operation:
 Lower: 902 - 915 MHz
 Upper: 915.1 - 928 MHz
These bands are selectable for each base station through dip switches 
located on the back of the T7406 base station. Each base station 
supports up to three handsets. Selection of the correct band for 
operation may minimize interference between devices.
Operational Parameters
For example, with a configuration of six handsets, two base stations are 
required (three handsets per base station). One base station will be set to 
the upper band, and the other base station will be set to the lower band. 
						

							8 / Provisioning the T7406
P0606142 01
Another example is an environment that already contains another 900 
Mhz device (e.g. a scanner with 900 Mhz wireless connection to a 
LAN). In this environment, only one T7406 base station should be 
installed. Set the T7406 base station dip switch to the opposite band 
that the scanner is operating in.
Installation Site Parameters
Physical characteristics of the site where the T7406 is to be installed, or 
has been installed, must be evaluated to maximize the performance of 
the T7406 telephone. Outlined below are some of the most common 
characteristics to be considered:
 wood vs. metal construction
 metal vs. wood studs in wall construction
 thickness of concrete floors and walls (and type of covering, e.g. 
Metallic wall paper)
 number of floors and walls
 open office (cubicles) vs. closed office (floor to ceiling)
 steel partitions, elevator shafts, electric utility rooms
 RF LANs (Radio Frequency Local Area Networks), extensive 
machinery, computer equipment, and other cordless phones or 
wireless devices
Placement of the antenna is crucial for enhancing the performance of 
the T7406. Pick a central location and mount the antenna with the 
following guidelines:
 Attach the base station at least eight feet from the floor.
 Minimize the number of walls between the base station and handsets.
 Centralize the location of the base station to make the number of 
interfering walls equal in all directions.
 Do not mount the base station on an outside wall.
 Do not mount or place the base station outdoors.
 Adjust the antenna for optimal transmission by moving it through 90-
degree angle planes (i.e. perpendicular to the wall, parallel to the 
wall, perpendicular to the floor, parallel to the floor) 
						

							Provisioning the T7406 / 9
T7406 Installation Guide
RF LANs (Radio Frequency Local Area Networks)
RF LANs are primarily installed in large chain businesses such as retail 
and grocery where the RF LAN is used for inventory equipment.
With the correct selection of the T7406 operating band, the RF LAN 
operating at 900 MHz does not pose an operating issue for T7406 nor 
does the T7406 pose issues for the RF LAN with respect to data 
transmission capabilities. However, there may be instances where the 
T7406 user may hear an occasional slight audio click when operating in 
a RF LAN environment. This should not inhibit the users ability to 
hold a normal two-way conversation using the T7406.
Telephone-to-Base Range
The T7406 cordless telephone utilizes an extremely efficient radio 
design to deliver the maximum possible range while complying with 
the governing rules of the Federal Communications Commission (FCC) 
and Industry Canada. The effective operating range within a site will 
largely depend on the environmental characteristics mentioned 
previously, such as building construction and internal layout of the site. 
Typically, the T7406 will provide an effective operating range of 95 
meters (300 feet).
If the T7406 is not meeting this operating range, the following are some 
steps that can be taken to assist with the troubleshooting:
 Check surroundings for any other product that my be causing 
interference.
 Check environment for obstructions that may be limiting the range.
 Change the orientation of the base station antenna.
 Move the base station to another location.
 Select the alternate operating band of the T7406.
It is important to keep in mind that, based on environmental 
characteristics, the T7406 may not be the optimum solution for all 
users. If the desired level of mobility performance is not met, contact 
your authorized Nortel Networks distributor to discuss alternatives. 
						

							10 / Provisioning the T7406
P0606142 01
Environmental Layout Considerations
The following facility layouts are examples of reference building 
footprints for which the T7406 is most suited.
1. The Storefront
 under 929 square meters/10,0000 square feet
 Open environments with few interior barriers 
2. Office Facility
The T7406 can also be used in business with larger square footage and 
including an interior layout that has a higher concentration of physical 
barriers. Full radio coverage at these facilities takes more planning to 
work around possible barriers.
  Professional office
  Typically under 2,323 
square meters/25,000 
square feet.
  Usually mix of open 
and closed offices
 Typical office floor 
with elevator shaft and 
utility rooms in core of 
facility.
Some transmission path 
loss will occur when the 
base station and the 
handset are separated by physical barriers, as represented by this 
core area.
The amount of path loss is dependent upon the number of walls 
and type of material and density of barriers utilized in the core 
area.
Diagonal 
measurement 
is
44 m/ 144 ft.
30.5 m/100 ft.46 m/150 ft.
46 m/
150 ft.
Diagonal 
measurement 
is 
55 m/180 ft.
30.5 m/
100 ft.
46 m/150 ft.
46 m/
150 ft.ABC DEF 
GHI JKL MNO 
PQRS TUV WXYZ1 2 3 
4 5 6 
7 8 9 
0 #