Installing Imb03 Cables; Cabling Requirements - Huawei DBS3900 Installation Manual

DBS3900 (Ver.B)
Installation Guide
Figure 13-41 Installing the PGND cable
(1) OT terminal (M4)
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13.5 Installing IMB03 Cables

This section describes cable connections and the process of installing cables.

13.5.1 Cabling Requirements

Cables must be routed according to the specified cabling requirements to prevent signal
interference.
General Cabling Requirements
The bending radius of the cables must meet the following specifications:
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Issue 06 (2011-09-15)
NOTE
In the DC power supply scenario, a BBU power cable must be connected to each UPEU if two UPEUs are
installed in the BBU. The 3V3 power connector at one end of each BBU power cable is connected to the
–48V port on each UPEU in the BBU, and the easy power receptacle (pressfit type) connectors at the other
end are connected to the LOAD6 and LOAD7 ports on the DCDU-03B, respectively.
NOTE
If a cable listed below is not required, skip the routing requirements of the cable.
The bending radius of the 7/8'' feeder must be more than 250 mm (9.84 in.), and the bending
radius of the 5/4'' feeder must be more than 380 mm (14.96 in.).
The bending radius of the 1/4'' jumper must be more than 35 mm (1.38 in.). The bending
radius of the super-flexible 1/2'' jumper must be more than 50 mm (1.97 in.), and the bending
radius of the ordinary 1/2'' jumper must be more than 127 mm (5 in.).
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13 Indoor Scenario (BBU Installed in an IMB03)
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