Huawei BTS3900A Quick Installation page 4

2 Stacking the Cabinets
Remove the cover plates (×2) from
the top of the lower cabinet.
Cover plate
Earth Grounding the Cabine
Principles for grounding
the BTS3900A: the BTS3900A:
The upper cabinets are connected to the lower
cabinets with equipotential cables.
The lower cabinets are connected to the RFCs.
The RFCs are connected to the grounding
busbar with PGND cables.
Equipotential cable (25 mm
Remove the
(x4) from the
cabinet.
To ensure the waterpr
of the cabinet, keep w
plates for the round ho
2 ) PGND cable (25 mm
plastic screws
e top of the lower
roof performance
well the cover
ole of the cabinet.
ets
The PGND cable and signal cable cannot
be bound or entangled. A certain distance
must be reserved between them to prevent
interference from each other interference from each other.
APM M30H APM30H
R RFC
2 )
3 3
Stack the cabinets, and attach
the cabinets with the bolts(×4).
Gasket with an G k t ith
oblong hole
Gasket with
M12x30 M12x30
an oblong an oblong
Blot (x4)
hole
Grounding bar
RFC
Grounding busbar