Firmware Upgrade Components; Usb-To-Uart Bridge Controller; Handset Adapter - Nortel T7406E Installation And Configuration Manual

32 Chapter 2 Introduction

Firmware upgrade components

To upgrade the firmware on the T7406E handsets and on the base station, or base stations, you
need the following components and materials:
•

USB-to-UART bridge controller

•

Handset adapter

• Upgrade cables
• Upgrade CD
USB-to-UART bridge controller
The USB-to-UART bridge controller is a firmware upgrade component. Use this hardware to
transfer the new firmware upgrade from your PC to your T7406E system. You connect the bridge
controller to your PC using a USB-to-UART cable (see figures
on page 34). The bridge controller has a UART port. You connect the bridge controller to the
upgrade jig, or directly to the base station in the case of a base station upgrade, using an upgrade
cable. The bridge controller is powered using the provided AC power source (see
page 32). Refer to
the firmware on your T7406E cordless handset and T7406E base station.
Figure 9 Bridge controller
Handset adapter
When you upgrade the handset firmware, you must use the handset adapter to transfer the new
firmware version to the handset. The handset adapter connects to the handset as shown in
10 on page 33. The handset adapter connects to the bridge controller using an upgrade cable.
NN40110-301 NN40110-301
Chapter 6, "Upgrading the firmware," on page 47
Upgrade ToPC
Figure 9 on page 32
-
+
and Figure 11
Figure on
for details on how to upgrade
PC LED
(green)
Power LED
(red)
Upgrade port
(USB)
Bridge controller-
to-PC (USB-to-UART)
Figure