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Maintaining ERX Routers
2. Insert a SODIMM from the upgrade kit at an angle of approximately 45 degrees
into an empty c
eramic connector, so that the notch in the long gold edge of the
SODIMM align s with the notch in the connector.
The notch on th
e long gold edge is no longer visible when t he SODIMM
is pressed in far enough.
3. Press the top s
urface downward into the socket until the socket spring snaps
into place and holds it.
4. Repeat Steps
2–3 with the other SODIMM.
5. Repeat Steps 1–4 for the other SRP module, if present.
Verifying the Upgrade
To verify that the upgrade is complete:
1. Place the S R P modules in the chassis.
The SRP modules reboot.
2. Close the eje
ctor handles and tighten the thum bscrews.
3. Issue the s how hardware command, and verify that the display indicates that
the correct a
mountofmemoryispresent.
Replacing S
FPs on I/O Modules
This sectio
n describes how to replace small form-factor pluggable transceivers
(SFPs) on modules that support these devices. A range of SFPs that support
different optic al modes (multim ode and single mode) and cabling distances
is availabl
e. Yo u can replace the SF Ps without disabling the i nterfaces
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 r ings, 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 n
ot touch, pins, leads, or solder conn ectio ns. Store components in
Replacing SFPs on I/O Modules 93