IBM 5078 User Manual
Connecting your 5074 to the middle of a loop
Use this procedure if you are connecting your 5074 to the middle of a loop. In
other words, you are connecting your 5074 between two other expansion units.
Refer to these expansion units as unit X and unit Y as is shown in Figure 8 and
Figure 9.
other words, you are connecting your 5074 between two other expansion units.
Refer to these expansion units as unit X and unit Y as is shown in Figure 8 and
Figure 9.
__ 1.
Remove the back cover from unit X, unit Y, and your 5074. See
Appendix A, “Removing the back covers” on page 31 if you need
instructions.
Appendix A, “Removing the back covers” on page 31 if you need
instructions.
__ 2.
At unit Y remove the SPCN cable from connector J15.
__ 3.
At unit Y remove the HSL cable from connector 0.
__ 4.
Connect the cables to your 5074. See Appendix B, “Connector Locations” on
page 35 if you need information about finding connectors.
__ a.
page 35 if you need information about finding connectors.
__ a.
Connect a new HSL cable to HSL connector 1.
__ b.
Connect a new SPCN cable to connector J16.
__ c.
Connect the power cable. Do not plug into the wall outlet.
__ 5.
Connect the HSL cable from unit X to the HSL connector 0 on your 5074.
This cable now runs between unit X and your 5074.
This cable now runs between unit X and your 5074.
__ 6.
Connect the SPCN cable from unit X to the SPCN connector J15 on your
5074. This cable now runs between unit X and your 5074.
5074. This cable now runs between unit X and your 5074.
__ 7.
Connect the HSL cable that you installed to connector 1 on your 5074 from
your 5074 to connector 0 on unit Y.
your 5074 to connector 0 on unit Y.
__ 8.
Connect SPCN cable that you installed to connector J16 on your 5074 to
connector J15 on your unit Y.
connector J15 on your unit Y.
__ 9.
Install or close the back cover of your 5074, unit X, and unit Y.
__ 10.
Figure 8. HSL connections
Figure 9. SPCN connections
Chapter 2. Setting up your 5074 expansion unit
13