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Cisco ONS 15454 Procedure Guide, R4.0
March 2003
Chapter 1 Install the Shelf and Backplane Cable
NTP-A6 Install the Power and Ground
DLP-A16 Connect the Office Ground to the ONS 15454
Step 1 Verify that the office ground cable (#6 AWG stranded) is connected to the top of the bay according to
local site practice.
Step 2 Attach one end of the shelf ground cable (#10 AWG) to the right side of the backplane ground nut. See
Figure 1-9 for the location of the ground on the backplane.
Note When terminating a frame ground, use the kep nut provided with the ONS 15454 and tighten it
to a torque specification of 31 in-lb. The kep nut provides a frame ground connection that
minimizes the possibility of loosening caused by rotation during installation and maintenance
activity. The type of prevention the kep nut provides for the frame ground connection is
inherently provided by the terminal block for battery and battery return connections.
Figure 1-9 Ground Location on the Backplane
Step 3
Attach the other end of the shelf ground cable to the bay.
Step 4 Return to your originating procedure (NTP).
Purpose This task connects ground to the ONS 15454 shelf.
Tools/Equipment #2 Phillips screwdriver
Medium slot-head screwdriver
Small slot-head screwdriver
Screws
Power cable (from fuse and alarm panel to assembly), #10 AWG, copper
conductors, 194°F [90°C])
Ground cable #6 AWG stranded
Listed pressure terminal connectors such as ring and fork types; connectors
must be suitable for #10 AWG copper conductors
Prerequisite Procedures DLP-A10 Remove the Lower Backplane Cover, page 1-15
Required/As Needed Required
Onsite/Remote Onsite
Security Level None
FRAME GROUND
61852
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