Table 5. Prefixes of location code labels for system units (continued)
Prefix Description Example
P Planar System backplane
T Port, external cable
U Unit
V Virtual planar
W Worldwide unique ID
X EIA value for an empty rack location
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.
8202-E4C, 8202-E4D, 8205-E6C, or 8205-E6D locations
Use this information to help you map a location code to a position on the unit.
The following diagrams show field replaceable unit (FRU) layouts in the system. Use these diagrams with
the following tables.
Rack views
Figure 9. Rack front view
18 Finding parts, locations, and addresses
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