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Adding expansion units to a new 12X loop

Use this procedure when adding new expansion units creates a new 12X loop, as opposed to being added to an existing 12X loop.

Unused 12X connectors might be covered with metal clips. Remove the clips before you install the 12X cables.

Before doing this procedure, review Examples: 12X connections.

Complete the following steps to add the expansion units to the 12X configuration:

  1. On the system unit where you are connecting new expansion units, identify connectors 0 and 1 of the 12X connector pair.
  2. Find the 12X cables that were included with the expansion units.
  3. Connect a 12X cable to connector 0 on one of the expansion units to be added.
  4. Connect another 12X cable to connector 1 on the expansion unit added in step 3.
  5. If there is another expansion unit to add, do the following:
    1. Choose the cable that you just connected to connector 1 on the expansion unit that you just added. Connect the other end of this cable to connector 0 on the next expansion unit to be added.
    2. Connect another cable to connector 1 on the expansion unit added in step 5.a.
  6. Repeat step 5 for each additional expansion unit.
  7. Connect the other end of the cable from connector 0 on the first expansion unit added to connector 0 on your system unit.
  8. Connect the other end of the cable from connector 1 on the last expansion unit added to connector 1 on your system unit.
  9. Return to the procedure that sent you here.


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Last updated: Tue, September 30, 2014