Cisco 15600 - Manual (Page 39)

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Cisco ONS 15600 Procedure Guide, R8.0
Chapter 17 DLPs E100 to E199
DLP- E146 Install Isolated Logic Ground
DLP-E146 Install Isolated Logic Ground
Step 1 Remove the PDU safety cover on the right side.
Step 2 Remove the metal shunt connecting the frame ground to the logic ground terminals. Terminal
designations are marked on the top of the PDU.
Step 3 Replace the green ground wire on the frame ground terminals and secure the wire with two Kepnuts
torqued to 36 in-lb.
Step 4 Repeat Steps 1 through 3 for the left side of the bay.
Step 5 Build a 36-inch-long logic ground strap with two-hole lugs on each side. Use AWG #2 cable with green
insulation and crimp lugs on the terminals at each end.
Note Lugs must be no wider than 0.60 inches (15.24 mm) to fit on the PDU terminals.
Step 6 Put one end of the strap on the left-side PDU logic ground terminals and secure the strap with two
Kepnuts torqued to 36 in-lb.
Step 7 Put the other end of the ground strap on the right-side PDU logic ground terminals.
Step 8 Put the two-hole lug from the office logic ground cable on the right-side PDU logic ground terminals
and secure it with two Kepnuts torqued to 36 in-lb.
Step 9 Secure the other end of the office logic ground cable to the office logic ground bar.
Step 10 Return to your originating procedure (NTP).
Purpose This optional task isolates logic ground from frame ground if required by
site specifications. The ONS 15600 ships with the frame ground strapped
to the logic ground with metal shunts at the PDU input terminals.
Tools/Equipment Screwdriver
Ground wire
Two-hole power lugs, 0.625-inch hole spacing, 0.25-inch bolt holes (2)
(Panduit LCCF2-14AZFW-E)
Prerequisite Procedures None
Required/As Needed As needed
Onsite/Remote Onsite
Security Level None