Replacing A Blower Assembly; Rrp: Wwn Card; Time And Items Required; Verifying Necessity Of Replacement - Dell PowerConnect B-DCX-4S Backbone Hardware Reference Manual

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5

RRP: WWN card

Replacing a blower assembly

1. Orient the blower assembly and slide it into the chassis, pushing firmly to ensure that it is
2. Verify that the power LED displays a green light.
3. Use the screwdriver or your fingers to tighten the captive screws.

RRP: WWN card

NOTE
The World Wide Name (WWN) cards contain fully redundant circuits and normally do not require
replacement. Two WWN cards are located beneath the WWN bezel (logo plate).

Time and items required

Allow approximately 20 minutes to replace a WWN card. The following items are needed to replace
a WWN card:

Verifying necessity of replacement

Before replacing a WWN card, verify that the replacement is necessary. Any of the following events
can indicate that the card requires replacement:
NOTE
On the DCX-4S the power and status LEDs for all blades are no longer present on the WWN card.

Determining the status of a WWN card

1. Check the WWN card status using the commands listed in
62
seated.
Electrostatic discharge (ESD) grounding strap
#2 Phillips screwdriver (required only for some versions of the WWN card)
If a serial console session is used: serial cable and a workstation computer with a terminal
emulator application (such as HyperTerminal for Windows systems or TIP for Solaris systems)
Status LED on WWN card (beneath the bezel) indicates a problem
Problems viewing or modifying the data stored on the WWN card
Error messages regarding WWN units #1 or #2
modifying this data could indicate a WWN card failure.
TABLE 10
Commands identifying the WWN card status
Data
WWN values
Data about the chassis and WWN card
Table
Related commands
wwn, chassisShow
chassisShow
PowerConnect B-DCX-4S Backbone Hardware Reference Manual
10. Difficulty retrieving or
53-1001808-01

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