ZXG10 iBSC Hardware Installation Guide
6.1.2 Cable Installation Flow
shows the flow to install cables.
Figure 6-5 Cable Installation Flow
6.2 Installing Power Cable and Grounding Cable
External power cables include -48V and -48VGND, which are blue and black cables with
section area of 25 sq.mm, respectively.
External grounding cable refers to the PE cable (protective grounding) from rack top. PE
connects with the cabinet shell, and protective grounding PE is a yellow-green cable with
the section area of 35 sq.mm.
Trunk cable labels are used at both ends of these cables.
For each shelf, board GND and static GNDE connect with protective GNDP via shelf
filter, and the rack busbar PE; they also connect rack GNDP with the grounding busbar
in equipment room via right PE post at the top of rack.
-48 VGND is led out from power subrack, and connects with -48 VGND of different
subsystems via a busbar.
-48 VGND firmly connects with the GNDP in equipment room.
The rack provides top grounding and bottom grounding. If conditions permit, the protection
ground wire can be grounded through an independent grounding post. Rack bonding
resistance is 0.1~0.3 ohms, and the grounding resistance shall be less than 1 ohm in
equipment room.
This section introduces the procedures of installing the ZXG10 iBSC power cables and
grounding cables.
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SJ-20110531095035-004|2011-10-28 (R2.0)
ZTE Proprietary and Confidential
Summary of Contents for ZXG10 iBSC
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