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Chapter
11
11.6.2 Replacing an existing board
The following procedure assumes that an existing board is to be removed from the system and a
replacement board (of the same or different type) is to be installed in the same slot in the system
cabinet.
Note:
Hot swap is forbidden in OXO Connect Compact and for PowerCPU EE C25. It is also forbidden for
PowerCPU EE boards in all systems.
Note:
PowerCPU EE C25 can be replaced by a PowerCPU EE C25 only.
1. If a hot swap is not possible, stop the system and disconnect it from the mains power supply
2. Locate the existing board to be removed in the cabinet and unscrew the securing screw from its
end-plate
3. Taking anti-static precautions (for example, by wearing a grounded wrist strap), pull the board out of
its slot
4. Taking anti-static precautions, pick up the replacement board and plug it into the now vacant slot
5. Secure the end-plate of the board to the cabinet with the screw provided
6. If you have stopped and powered down the system, reconnect it to the mains power supply and
restart it
7. Perform any configuration and/or tests required for the replacement board
Note:
Following configuration in the OMC tool, you may be required to perform a warm reset of the system for the
configuration changes to take effect. In this case, the software will prompt you to perform the warm reset.
11.7 MSDB replacement
When the eMMC device is about to reach the end of its life, a history event (urgent alarm type) is
updated in the hardware anomaly table of OMC. In that case:
•
If the existing MSDB is readable, MSDB must be replaced and migration must be done with the
customer configuration/data using OMC and LoLa
•
If the existing MSDB is not readable and the data are lost, MSDB must be replaced and LoLa
installation is required
The event 37: MSDB health status is generated once a week with the following error cases updated in
the comp info:
•
Value 01 - Device has reached >= 80% of its life time due to increased block erase count
•
Value 02 - Device has reached > =90% of its life time due to increased block erase count
•
Value 03 - Device has reached >=80% of its life time due to increased bad block
•
Value 04 - Device has reached >=90% of its life time due to increased bad block
11.8 RAM replacement
When a 256 MB RAM is installed on the PowerCPU EE, the history event 38: Unsupported RAM size
(urgent alarm type) is updated in the hardware anomaly table of OMC at each initialization of the
system.
In that case, the unsupported RAM must be replaced with the supported 512 MB RAM.
8AL91217USAA - Ed. 01 - July 2018 - Installation Manual
Maintenance level 1
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