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Steps
Steps
To wire the fixed configuration DC power shelf, perform the following steps:
SUMMARY STEPS
1. Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection
sockets on the front (PLIM) side of the chassis or a bare metal surface on the chassis.
2. Remove the terminal block cover
3. Verify the following resistance values:
4. Use the crimping tool mandated by the lug manufacturer to crimp the lugs to the DC-input cables and the
power shelf ground cable. For details on lugs, see
5. Using a 10-mm socket wrench, attach the ground cable to the ground cable terminal on the power shelf.
Then use the torque wrench to tighten to a torque of 30 in.-lb (3.39 N-m).
6. Using a 10-mm socket wrench, attach the positive and negative cables to each terminal block. Then use
the torque wrench to tighten to a torque of 20 in.-lb (2.26 N-m).
7. Reattach the terminal cover with a Phillips screwdriver. Insert and tighten the screw holding the cover to
the wiring terminal block.
DETAILED STEPS
Step 1
Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection sockets on the
front (PLIM) side of the chassis or a bare metal surface on the chassis.
Step 2
Remove the terminal block cover
Step 3
Verify the following resistance values:
• The resistance between the positive and negative power terminal studs of each input must be greater than 90 KOhm.
• The resistance between each positive terminal stud and bare metal surface on the power shelf must be greater than
10 MOhm.
• The resistance between each negative terminal stud and bare metal surface on the power shelf must be greater than
10 MOhm.
Step 4
Use the crimping tool mandated by the lug manufacturer to crimp the lugs to the DC-input cables and the power shelf
ground cable. For details on lugs, see
The cable should be sized according to local and national installation requirements. Use only copper cable.
Note
The terminal posts are centered 0.63 inches (5/8 inch)(1.60 cm) apart and are M6-threaded. We recommend
that you use an appropriately sized 180-degree (straight) industry standard 2-hole, standard barrel compression
lug.
Step 5
Using a 10-mm socket wrench, attach the ground cable to the ground cable terminal on the power shelf. Then use the
torque wrench to tighten to a torque of 30 in.-lb (3.39 N-m).
Step 6
Using a 10-mm socket wrench, attach the positive and negative cables to each terminal block. Then use the torque wrench
to tighten to a torque of 20 in.-lb (2.26 N-m).
Step 7
Reattach the terminal cover with a Phillips screwdriver. Insert and tighten the screw holding the cover to the wiring
terminal block.
Installing and Removing Power Components
26
DC Power
DC Power
Systems.
Installing and Removing Power Components
Systems.
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