9. Attach the red and black leads of the 17-02521-01 +5V feed cable to the
bus bars. This is a new cable provided in the upgrade kit. See
9
in
Figure 2–15.
CAUTION:
Attach the black lead to ground and the red lead to the +5V
bus bar.
10. Install the large end of the power supply enable cable (17-02500-01)
into J8 at the lower righthand corner of the XMI-2 card cage. This
cable is also new. See
10
.
11. Route the 17-02521-01 and 17-02500-01 cables through the plastic clips
attached to the underside of the sheet metal assembly. Then coil the
cables in the VAXBI backplane area. Later you will route the cables
down through the cable tray to the H405 area when you install the new
H7206 power and logic unit (see Section 2.8.3).
12. Reattach the four wires (17-01812-01) on the bus bars that go to the
system control assembly. Use a Phillips screwdriver to attach the +5V
(red) and +12V (orange) wires (see Figure 2–13); use an 11/32 inch
nutdriver to attach the two ground connections (brown and black). See
12
. When attaching the brown wire, make certain to leave clearance
for the ground strap. Use the nut and washers that you saved for the
ground connections.
13. Reattach the ground strap to the chassis (17-01662-01) using the screw
you saved. Use a large Phillips screwdriver. See
13
.
14. Attach the XTC power sequencer cable (17-01568-02) to J1. See
14
.
15. Attach the cables (17-01897-02 and -03) between where the DWMBB/A
modules will be placed (in the XMI-2 card cage) and where the
DWMBB/B modules will be placed (in the VAXBI card cage). If you
have an expander cabinet, attach the DWMBB cables to the expander.
You will install the DWMBB modules later (see Section 3.2).
XMI-1 to XMI-2 Conversion
2–25
