Appendix D. Cabling Rules For Systems With A 503X Migration Unit - IBM 5075 Setting Up

Appendix D. Cabling rules for systems with a 503x Migration
Unit
These rules apply when you are setting up a new 5075 Expansion Unit in a system
with a 503x Migration Unit.
Figure 21. HSL loop with two external units
Figure 22. HSL loop with three external units
© Copyright IBM Corp. 2000
System unit
AS/400e 820
Rule
v If there are three external units or fewer, the 503x must be in
the first position of the HSL loop. The first position is the
position closest to connector A0 on the system unit. See
Figure 21 and Figure 22.
v If there are four or five external units, the 503x must be in the
second position of the HSL loop. There must be one
expansion unit between A0 and the 503x. See Figure 23 on
page 30 and Figure 24 on page 30.
v The 503x must be in the last position of the SPCN loop. See
Figure 25 on page 30.
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