User's Manual Part 1

March 29, 2006 Part ######A revision 00a-DRAFT 55
Chapter 4: Base Station Installation Procedures
Ground the Racks
Each rack requires a ground cable connecting the PDP to the building’s grounding system. A frame
ground cable connects the rack’s frame to the PDP, ensuring that the frame and its attached
components are grounded.
Figure 4.4 shows the cables used to ground the racks. For clarity, the PDP rear cover is not depicted.
Figure 4.4 Ground Cables
 To ground the racks
1 If necessary, remove the PDP rear cover. The rear cover attaches to the PDP using four #1 Phillips
screws.
2 Ensure that all the circuit breakers on the PDP are in the OFF (down) position.
3 Connect the main ground cable to the building’s grounding system using a minimum of #6 AWG stranded
copper wire.
4 Terminate the main ground cable with a two-hole compression lug. Apply an anti-oxidant solution to the
cable before attaching the compression lug.
NOTE: When crimping the compression lug, ensure that you are using the
appropriate tool. Compression lugs for #6 AWG wire are colored blue and require that a
blue die be used with the crimping tool.
Figure 4.5 shows the dimensions of the compression lugs.
Figure 4.5 Compression Lug Dimensions
5 Apply an anti-oxidant solution to the ground terminals on the PDP.
00279
Main Ground Cable
Frame Ground Cable
5/8"
1/4" Hole
00280