
FRP 10: Logic Cable Replacement
AC Repair and Adjustment Procedures
70
Cray Research/Silicon Graphics Proprietary
HMM-168-A
Cable Installation
1.
Install the replacement cable:
a. Position the replacement cable in the wiremat. Ensure the proper
orientation of the connector on the module-end of the cable, then push
the connector through the connector slot in the rail.
b. Position the connector in the connector slot, and insert the hex screws
(and brass spacer if applicable). Tighten the screws to 15 in-oz.
c. Push the connector toward the spring to ensure that the connector
moves laterally, then springs back into position.
d. Replace the foam in the connector slot.
2.
Slide the plastic slot guide into the rail.
3.
Install (but do not tighten) the 7 nylon screws that secure the slot guide in
the rail. When you have installed all 7 screws, tighten the screws until you
feel resistance. Do not overtighten the screws, but ensure that the
screwheads are recessed within the slot guide.
4.
For a torus cable, connect the cable in the wiremat:
a. Determine where the replacement cable connects and connect it.
b. Coil the two cables that you just connected. Refer to other coiled torus
cables for a guide.
c. Secure the coiled cables to the wire rack with a tie strap.
5.
If applicable, close the air seals on the cable ducts where wires pass
between cabinets.
6.
Replace and cam the modules that you removed. Refer to
FRP 5
.
7.
Replace any panels that you removed earlier.
8.
Return the system to operation, ensure proper function, and close the
cabinet doors.
CAUTION
Installing the nylon screws in the top rail is difficult. Be careful
not to drop and lose any screws. Do not overtighten the screws.