Figure 14-31 Installing PGND Cables
(1) Ground bar on the inner side of the cabinet (2) PGND cable (3) Ground busbar
Step 3 Route and bind the cables. For details, see 13.5.1 Cabling Requirements.
Step 4 Label the installed cables. For details, see Attaching a Cable-Tying Label.
Step 5 Run each cable that leaves the cabinet in a PVC corrugated pipe, and then tie the pipe to the
cable hole on the cabinet.
----End
14.4 Installing Components
When a DBS3900 is deployed outdoors with AC power supply, and the BBU is installed indoors,
you must install the SLPU and USLP2s in an outdoor APM30H.
14.4.1 Installing a USLP2
A USLP2 is installed in an SLPU, providing surge protection for RRU monitoring signals.
Context
Two USLP2s are installed in slots 2 and 3 of an SLPU, as shown in Figure 14-32.
Figure 14-32 Position for installing USLP2s
DBS3900 (Ver.B)
Installation Guide
14 Indoor Scenario with DC Power Supply (BBU Installed
Indoors and RRU Powered Outdoors)
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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