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109352-E Rev. A 4-1
Chapter 4
Accessing the Interior
Experienced network operators can safely perform the user-serviceable
procedures that are described in Chapter 5. Only authorized Bay Networks service
technicians can perform other procedures, not described in this book.
Before you can perform user-serviceable procedures, you must access the interior
of your Backbone Node hardware platform, as follows:
• Remove the front bezel.
• Connect the antistatic wrist strap to the hardware platform.
• Remove the electromagnetic compatibility (EMC) shield from the front panel
to access the interior.
• Remove and install an air flow module. (Refer to the BLN and BCN Fuse
Service Manual for instructions.)
Depending on your hardware platform model, you need a Phillips screwdriver,
standard screwdriver, or both to replace hardware components.
Caution: Always use the wrist strap to avoid damage to electronic
components when handling hardware modules.
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