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4.
5.
Verifying the Upgrade
To verify that the upgrade is complete:
1.
2.
NOTE: Hand-tighten the top and bottom thumbscrews to secure the module.
3.
Replacing SFPs on I/O Modules
This section describes how to replace small form-factor pluggable transceivers (SFPs)
on modules that support these devices. A range of SFPs that support different optical
modes (multimode and single mode) and cabling distances is available. You can
replace the SFPs without disabling the interfaces or removing the module from the
system.
WARNING: Do not insert any metal object, such as a screwdriver, or place your hand
into an open slot or the backplane when the router is on. Remove jewelry (including
rings, necklaces, and watches) before working on equipment that is connected to
power lines. These actions prevent electric shock and serious burns.
CAUTION: When handling electronic components, use an antistatic wrist strap
connected to the system's ESD grounding jack, and hold components by their edges.
Do not touch, pins, leads, or solder connections. Store components in antistatic bags.
These actions help to protect modules from damage by electrostatic discharge.
Removing SFPs
To remove the SFPs:
1.
2.
3.
Repeat Steps 2–3 with the other SODIMM.
Repeat Steps 1–4 for the other SRP module, if present.
Place the SRP modules in the chassis.
The SRP modules reboot.
Close the ejector handles and tighten the thumbscrews.
Issue the show hardware command, and verify that the display indicates that
the correct amount of memory is present.
Obtain an antistatic container for the SFPs you plan to remove. (See "Storing
Modules and Components" on page 78.)
Put the antistatic wrist strap on your wrist, and connect the strap to the ESD
grounding jack on the system.
Disconnect the cables from one of the SFPs on the module.
Chapter 8: Maintaining ERX Routers
Replacing SFPs on I/O Modules
85
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Troubleshooting
