Huawei RRU User Manual page 70

3 Installing RRU and SRXU Hardware
Cable
Single-jacket cable
Two-wire or multi-wire
cables with/without
shielding layers
Optical cable
Requirements for Binding Cables
l
l
l
l
General Cabling Specifications
l
l
l
Cabling Specifications for Power Cables and PGND Cables
l
l
l
l
l
3-12
NOTE
In the preceding table, D refers to the diameter of the cable jacket and R refers to the bending radius of the
cable.
Cables of different types are bound separately. The cables cannot be coiled.
The cables are tightly and neatly bundled. Ensure that the jackets of the cables are not
damaged.
Two adjacent cable ties are spaced 200 mm and face the same direction. The cable ties at
the same position are placed at the same level. All cuts of the cable ties are smooth without
sharp projections.
Attach labels or nameplates to both ends of the cables after they are installed.
Cables of different types are routed separately.
Cables of different types are not crossed.
The space between cables of different types are greater than 30 mm when the cables are
routed parallel inside the cabinet. The space between cables of different types are greater
than 100 mm when the cables are routed parallel outside the cabinet. If such requirements
cannot be met, If such requirements cannot be met, the cables must be separated with
specified objects.
The optical cables are routed in compliance with the engineering design and general cabling
specifications.
If the cable is not long enough, replace the cable. Do not add connectors or solder joints to
lengthen the cable.
The cables are insulated if they are bound to and routed on the metal cable rack.
Fuses or switches are not allowed on the cables.
The -48 V power cable and the GND cable are bound together.
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1/2" jumper
2.5 mm ≤ D ≤ 4.5 mm
D ≥ 4.5 mm
6.5 mm ≤ D ≤ 12.5 mm
D ≥ 12.5 mm
User Guide
Requirements for the
Bending Radius
≥ 50 mm
R ≥ 2D
R ≥ 3D
R ≥ 2D
R ≥ 3D
R ≥ 20D
Issue 01 (2008-04-18)
RRU