Making Fiber RI/RO Connections (8238)

Making Fiber RI/RO Connections

If the optional IBM 8238 Fiber RI/RO Feature is installed in your mgmt. hub, you can make RI/RO connections to:


To make a RI/RO connection:
  1.  Ensure both RI/RO devices are set to the same ring speed.

     The IBM 8238 Fiber RI/RO Feature ring speed is factory-set to 16 Mbps. If you must  change the ring speed, refer to the IBM 3238 Token Ring Stackable Hub Installation and Operation Guide. 

  2.  Connect the trunk cables. Connect Ring-In to Ring-Out, and TX (transmit) to RX (receive). The order in which you  make the connections does not matter.

      Do not exceed the minimum bend radius for the fiber cable.  Refer to the manufacturer's specifications for minimum bend radius.

  3.  Check the LEDs on the 8238 Fiber RI/RO Feature front panel to verify that the  trunks are working properly. The RI and RO LEDs light solid green to indicate proper operation.

The following label satisfies safety certification requirements:


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