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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.
__ 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.
__ 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. 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.
__ 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.
__ 7. Connect the HSL cable that you installed to connector 1 on your 5074 from
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.
__ 9. Install or close the back cover of your 5074, unit X, and unit Y.
__ 10. Go to Chapter 5, “Completing your installation” on page 27.
Figure 8. HSL connections
Figure 9. SPCN connections
Chapter 2. Setting up your 5074 expansion unit 13