Nortel Passport 15000, Установка и обслуживание оборудования, Страница: 335 / 874

Chapter 17 Hardware procedures 335
Passport 15000, 20000 Hardware Installation, Maintenance, and Upgrade 5.2S2
21 Tighten each stud nut to 6.5 Nm (57.5 in.-lbs). Use a properly calibrated
torque wrench with the measurement near the middle of wrench’s range.
22 Slide the insulating boot to the BIP end of the cable and align it with the
shape of the lug (toe upwards). Rest the boot flush against the rear of the
BIP. The boot retainer clamp will be fastened in a later procedure after
testing the installation of the power cables.
23 Dress the cable by
• fastening it to the strain relief bar at the point perpendicular to the
insulation boot; consider that other cables will be nesting against the
cable and bar
• balancing the slack up to the other end
• tightening the tie-wraps up to the other end
• cutting off the tie-wrap tails
24 Locate the adjacent cable by its label as indicated in the figure “Overhead
power input cables for the lower shelf connected to the BIP” (page 337).
25 Repeat step 1 to step 24 for each of the remaining 3 or 7 power input
cables. Adjust each cable label.
CAUTION
Risk of damage to power connections
At the rear of the BIP, the top stud of each pair carries the
power. The bottom stud prevents rotation of the lug from
the weight of the power cable. To avoid arcing and
rotation, ensure both studs are fastened securely with the
provided 2-hole lug.