Table 17. Prefixes of location code labels for system units
Prefix Description Example
A Air-moving device Fan, blower
C Card connector IOP, IOA, DIMM, processor card
D Device Diskette, control panel
E Electrical Battery, power supply, ac charger
L Logical path SAS target Integrated drive electronics (IDE) address, Fibre
Channel LUN
N Horizontal placement for an empty rack location
P Planar System backplane
T Port
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.
8248-L4T, 8408-E8D, or 9109-RMD locations
The following table contains location codes for the parts that make up the server.
The following diagrams show field replaceable unit (FRU) layouts in the system. Use these diagrams with
the following tables.
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Finding parts, locations, and addresses 57
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