Exchanging an Adapter
Note: The adapter you replace must be of the same type as the original.
Otherwise, you will need to reconfigure. See the
3746 Nways Multiprotocol
Controller Model 900 and 950: Controller Configuration and Management: User's
Guide, SH11-3081.
1
Locate the adapter module to be replaced.
Attention:
a. Adapters are hot pluggable, but all adapter ports must be disabled before
cables are removed. See “Suspend Traffic on an Adapter Port” on
page F-3.
b. If an adapter is removed prior to disabling the ports, a machine check can
occur.
c. If you are removing a serial adapter (EIA-232E/V.24, V.35/V.36, X.21
which are LICs 282, 290, and 291), you need to disable the WAN
Reroute process before you remove the adapter. (See “Disabling
Interfaces that Have WAN Reroute Enabled” on page F-4).
d. If you removing a Parallel Channel Adapter (LIC 299), perform the steps
in “Removing Channel Adapters” on page 3-43 beginning with Step 1.
(This require a channel-trained service person.)
2
Label the cables for proper reconnection.
3
Loosen the screws (if present) that secure the cable or cables.
4
Remove the cable or cables.
Attention: You must turn the adapter's thumbscrews simultaneously when
unseating or seating the adapter during removal or installation. By doing so,
you prevent stripping the thumbscrews. If you strip the thumbscrews, you
may not be able to seat or reseat the adapter properly.
4-42
3746-9X0: MAE Installation and Maintenance
Summary of Contents for 950
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