Board Removal And Replacement; Removing Sbc Board - Multitech Hub User Manual

Board Removal and Replacement

Removing SBC Board

1 Remove the CommPlete 4000 from rack enclosure (two people are needed). Follow the
procedure "Disconnecting Cables and Removal from Enclosure" presented above. Summary:
after powering down the unit and disconnecting all power and signal cables, employ two persons
to remove its rack-mounting screws and lift the unit out of the rack.
2 Remove the top cover from the CommPlete 4000 by removing the seven cover mounting
screws located in the back of the CommPlete 4000. (See Figure 4-3.)
3 Disconnect the four ribbon cables from the SBC. (See Figure 4-6.) Depending on
your configuration, you may not have all four ports in use.
4 Remove the fanned heatsink from the processor or disconnect the power connector for the
fanned heatsink.
5 Remove the screw that secures the SBC board to the chassis at the back of the CommPlete
4000.
6 Remove the SBC board from the midplane.
7 To replace the SBC board, verify SBC board configuration. Refer to the Hardware
Configuration and Installation instructions in the SBC manual.
8 Install the new SBC board by following steps 1-5 in reverse order and sense. That is,
a. Attach SBC to its midplane socket.
b. Secure SBC to rear of chassis with screw.
c. Re-connect ribbon cables and fanned heatsink.
d. Replace top cover (7 screws).
e. (Two people are needed.) Replace CommPlete 4000 into rack enclosure.
CommPlete 4000 Communications Server User Guide
Figure 4-6. SBC Board and Ribbon Cable Connectors
Chapter 4 - Hardware removal/Replacement
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