Huawei BTS3900L Installation Manual page 93

BTS3900L (Ver.C)
Installation Guide
Procedure
Step 1 Prepare RRU power cables.
1.
2.
Step 2 Add a correct connector to the RRU power cable on the RRU side and connect the connector to
the power port on the RRU. For details, see the related RRU installation guide.
Ensure that the RRU power cable for an RRU added to a running base station must be connected
to the RRU first and then to the power equipment. The operations in the reverse sequence may
cause component damage or personal injury.
Step 3 Optional: Route the RRU power cable from the RRU side to the DCDU side through the feeder
window. Install a ground clip near the feeder window outside the equipment room, and connect
the PGND cable on the ground clip to the external ground bar. The installation procedure of
ground clip is as follows:
1.
2.
Issue 07 (2013-11-08)
Cut the power cable to lengths suitable for the actual cable routes.
Add connectors to the RRU power cables on the DCDU side.
l For details about how to add connectors to RRU power cables for a BTS3900 (Ver.B)
or BTS3900L (Ver.B), see Assembling the OT Terminal and the Power Cable.
l For details about how to add connectors to RRU power cables for a BTS3900 (Ver.C)
or BTS3900L (Ver.C), see Assembling the Tool-Less Female Connector (Pressfit Type)
and the Power Cable(2).
CAUTION
NOTE
When installing RRUs outdoors, use a ground clip to ground RRU power cables near the feeder window
before routing them into the equipment room. However, this grounding measure is not required for RRUs
installed indoors. As an example, the following figure shows the procedure for installing power cables for
RRUs installed outdoors.
Use a utility knife to strip 63 mm (2.48 in.) long jacket off the power cable to expose the
shield layer.
Figure 11-22 Stripping the jacket off the power cable
Wrap the copper sheet of the ground clip around the shield layer of the power cable, and
use cable ties to bind them tightly. Then trim off surplus part from the heads of the cable
ties without leaving any sharp edge.
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11 Installing the Cables
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