Chapter 12: Firmware Upgrade
170
To update Stacking Units for the Failsafe Upgrade feature
The major upgrade procedures may vary depending on the situation of
your devices. For example, if the boot loader version of your Main Unit is
already 0C4 and the firmware version is 3E5, you can skip STEP (A)
below.
STEP (A): Update the Main Unit's boot loader to 0C4 and
firmware to 3E5 or later
STEP (B): Keep only one Stacking Unit connected
STEP (C): Update the Stacking Unit's Firmware
STEP (A): Update the Main Unit's Boot Loader to 0C4 and Firmware to 3E5 or
Later
There are two types of scenarios:
•
The boot loader version of the Main Unit is earlier than 0C4—you must
upgrade its boot loader to 0C4 or later. See
Updating Main Units for
Failsafe Upgrade Feature
in
Main Units
(on page 168) for details.
•
The boot loader version of the Main Unit is 0C4 or later, but its
firmware code is earlier than 3E5—download the firmware of version
4.2 or later, and upgrade it by following the procedure described in
General Update Procedure
(on page 164). The firmware file to
choose is P2-xxx.hex (xxx represents the version).
STEP (B): Keep Only One Stacking Unit Connected
To upgrade the Stacking Unit for obtaining the failsafe capability, only one
unit is allowed to connect to the Main Unit at one time. If there are more
than one Stacking Unit or no Stacking Unit connected to the Main Unit, you
must do the following:
1. Turn off the Main and Stacking Units.
2. Connect only one Stacking Unit to the Main Unit.
3. Turn on the Stacking Unit first.
4. Turn on the Main Unit.
5. Set the Main Unit's stacking support to 1. See
Stacking Support
(on
page 41) for additional information.
6. Set the Stacking Unit ID to 1. See step 6 of
Installing a P2-UMT1664S
Stacking Unit
(on page 30) for additional information.
7. Turn off both units.
8. Turn on the Stacking Unit first.
9. Turn on the Main Unit.
Summary of Contents for PARAGON II Series
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