Replacing SIMMs
I-12
893-743-A
3.
Using the #1 Phillips screwdriver, insert and tighten 3 screws on each
side of the hub and 6 screws across the back (see Figure I-8).
Figure I-8. Cover retaining screws
Final Steps
When the hub is reassembled, reinstall the hub in a rack or on a wall, if
necessary, and verify correct operation of the hub. For instructions on hub
installation, see Chapter 2, “Installing the Model 281xSA Hub.”
To verify correct hub operation, follow these steps:
1.
Connect the power cord, first to the Model 281xSA hub and then
to a power outlet.
2.
Turn on the power to the hub.
3.
Check the LEDs and system operation display, as described in
Appendix B, “LEDs and Switches.”
NOTE:
Be careful of the ribbon cables that run between boards at the side of
the hub. If the ribbon cables interfere with the installation of the cover, gently
push them to the inside of the hub as you lower the cover onto the hub.
EXPANSION 2
EXPANSION 3
EXPANSION 4
EXPANSION 5
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