Chapter 17 DLPs E100 to E199

DLP- E146 Install Isolated Logic Ground

DLP-E146 Install Isolated Logic Ground

 

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

 

 

 

 

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).

 

 

 

 

 

Cisco ONS 15600 Procedure Guide, R8.0

17-39

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Cisco Systems 15600 manual DLP-E146 Install Isolated Logic Ground, 17-39

15600 specifications

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