Alcatel-Lucent 7750 SR-a4, Installation Manual, Page: 88 / 232

Chassis Ground Wiring
88 7750 SR-a4 and SR-a8 Installation Guide
Step 2. Using a wire-stripping tool, strip the insulation from the wire according to the local
safety code and crimp the ring lug to the wire, as shown in
Figure 23 .
Step 3. Place the two-hole lug on the ground studs such that the wire runs down the rack
upright.
Step 4. Secure the lug with the two supplied KEP nuts. Orient the KEP nuts so that the KEP
washer is in contact with the lug. Tighten the nuts to a torque of 18 to 20 lbf-in
(0.9 to 1.13 N
.
m) maximum. Do not over-tighten.
Step 5. Form a service loop with the extra wire and secure it to a convenient place (for
example, a rack upright).
Step 6. Connect the opposite end of the ground wire to the appropriate ground point at the
installation site. Ensure that the chassis ground connection is made according to the
local safety code.
Step 7. Install an optional cable management system. Otherwise, go to Installing PSUs on
page 91 for information about how to connect the router to the power source.