Powering The T7406 - Nortel T7406 Installation Manual

For this type of environment, contact your authorized Nortel distributor to discuss alternatives.

Powering the T7406

The T7406 design has taken into account the need to provide a reliably-powered cordless business
telephone. The T7406 utilizes premium 1400 mAh NiMh batteries.
A fully charged 1400 mAh battery should provide four to five hours of talk time in a typical
eight-hour day over, approximately, a three-year service life.
The T7406 has been engineered to provide the following talk-time parameters:
• T7406 users should feel comfortable using the handset for an entire workday without the need
to put the handset back into the charger cradle for charging or topping up.
• Studies have shown that users have been able to get four to five hours of talk time from a fully
charged 1400 mAh battery.
• Traffic studies have shown that typical users do not usually need more that three hours of talk
time in an eight-hour day.
• If talk times exceed four hours or the product is to see use through multiple, consecutive shifts,
multiple spare batteries are strongly recommended.
Battery Charge Controller
The T7406 incorporates a special handset battery charge controller that employs a four-stage
charging program that sequences charging from a soft start to a fast charge, and then to a topping
charge, followed by a maintenance charge.
Bldg. A
107 m/
350 ft.
Bldg. C
Chapter 2 Provisioning the T7406
95 m/
300 ft.
Bldg. B
Bldg. D
1 2 ABC 3 DEF
4 GHI 5 JKL 6 MNO
7 PQRS 8 TUV 9 WXYZ
0 #
Bldg. E
T7406 Cordless Handset Installation Guide
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