Setting A Ran Node Number - IBM eserver pSeries 690 Installation Manual

v Up to eight RANS may be attached to one adapter total. If 4 are attached to line one,
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| then only 4 more can be attached to line 2.
v RANs MUST be numbered in ascending order. The RAN closest to the adapter is
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assigned as node 1. No gaps in the numbering should occur. Example, numbering
| RANs as 1, 3, 4 in a line will cause configuration problems.

Setting a RAN Node Number

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The AIX Asynchronous Communications Guide, provides information on configuring and
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running diagnostics on the 128 Port ASYNC Adapter and associated RANs. To access
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the AIX Asynchronous Communications Guide, see the AIX Online documentation. The
| adapter identifies RANs by their node numbers. Each RAN in a daisy chain must have
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a unique node number ( 1n-4n ), which must be set during installation. The node
| numbers must be assigned in ascending order with the lowest number assigned to the
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RAN closest to the 128-Port ASYNC adapter. The following figure shows the front panel
| of a RAN.
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To set the RAN node number, do the following:
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1. Turn the RAN on and wait for the power-on self-test (POST) to complete.
2. When P1 is displayed on the front panel seven-segment LED display, press the Left
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3. Press the Right Arrow button to advance the node number through the eight
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4. When the desired node number is displayed, press the Left Arrow button again to
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| For additional information, see step 5 on page 25 for an illustration showing the location
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of the HMC connectors located on the primary I/O book. In this case, instead of using
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the native serial ports on the back of the HMC as shown following illustration, use the
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Arrow button once. The current node number is displayed, for example, 1n for node
1.
possible settings ( 1n-8n ).
select the number. The display should now read Pn (indicating a pass condition). If
there was an error, the display reads En .
In the case of duplicate node numbers, the RAN farthest from the host adapter
displays En, instead of AC, when the system is started.
RD RTS CTS DSR CD DTR RI OFC IFC RD RTS CTS DSR CD DTR RI OFC IFC
AC
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