MAP 0320: Verifying Repair Action for Parallel Channel
001
– Make sure that all cables are marked so that they can be reconnected to the
appropriate adapters.
– Follow the sequence in “Testing the Adapters” on page 5-49 to test all the
components that are installed in the multiaccess enclosure
–
Note: This procedure requires a channel-trained IBM service representative or
customer’s channel-trained person.
.
Did all of the multiaccess enclosure diagnostics run without errors?
Yes No
002
– Replace the failing hardware. Perform the action indicated by the
diagnostic test.
003
Did you replace a Parallel Channel Adapter?
Yes No
004
– Connect all communication cables to their respective networks.
– Return the multiaccess enclosure to the customer.
005
– Run the Parallel Channel Adapter test with wrap blocks. See “Running the
Parallel Channel Adapter External Wrap Tests” on page 3-27.
Did the Parallel Channel Adapter tests run without error?
Yes No
006
– Go to “MAP 0310: Parallel Channel Problem Isolation” on page 3-16.
007
– Re-connect all associated cables.
– Verify that the Select/Bypass Switch on the V-cable is in the S position.
– Return the multiaccess enclosure to the customer.
Chapter 3. Multiaccess Enclosure Problem Determination 3-17
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