IBM 3745 Series Connection And Integration Manual page 90

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Step 3
If you are only installing an ARC, go to Step 7 on page 3-26.
Otherwise, ask the network operator to deactivate the ARC
communication lines that you wish to unplug and:
• If you are only replacing an ARC without changing its cable ,
replug its cable and go to Step 6 on page 3-26.
• Otherwise, continue with the next step.
Step 4
Unplug the ARC cable from the DTE/DCE or the 3745-type connector.
When disconnecting a 3745-type connector:
a. Hold the connectors with both hands.
b. With one hand squeeze the side . levers and at the same time pull
the two connectors apart with side-to-side rocking motion.
c. Store the connecting seal with the ARC cable for future use.
Step 5
Unplug the ARC cable from the ARC.
Unplug one or both ends of the ARC cable, as necessary, for every
ARC and cable that you are removing.
If you are only changing an ARC cable without changing its
associated ARC, go to Step 9 on page 3-26.
Chapter 3. 3746-900: Installing LCSs and ARCs, Connecting Cables
3-25