Table 43. Prefixes of location code labels for system units (continued)
Prefix Description Example
Y Firmware FRU
Worldwide unique identifier
The location code label for the worldwide unique identifier consists of the prefix W followed by a
maximum of 16 uppercase hexadecimal digits with no leading zeros. A location code might not consist of
a worldwide unique identifier. When present, the worldwide unique identifier location label follows the
location label of the resource that interfaces with the resource that has the worldwide unique identifier,
usually a port.
5803 and 5873 locations
Use this information to help you map a location code to a position on the unit.
Note: The known logical location codes for this unit are listed next to the corresponding physical location
in the following information. If you are working with a logical location code for this unit and it is not
listed in the following information, contact your next level of support.
The following diagrams show the field replaceable unit (FRU) layout in the system. Use these diagrams
with the following tables.
Figure 57. Front view
152 Finding parts, locations, and addresses