2 Stacking the Cabinets
Remove the
(x4) from the
cabinet.
Remove the cover plates (
×
2) from
the top of the lower cabinet.
To ensure the waterpr
of the cabinet, keep w
plates for the round ho
Earth Grounding the Cabine
Principles for grounding
the BTS3900A:
Cover plate
z
The upper cabinets are connected to the lower
cabinets with equipotential cables.
z
The lower cabinets are connected to the RFCs.
z
The RFCs are connected to the grounding
busbar with PGND cables.
the BTS3900A:
APM
R
3
PGND cable (25 mm
2
)
Equipotential cable (25 mm
2
)
plastic screws
e top of the lower
Stack the cabinets, and attach
the cabinets with the bolts(
×
4).
G k t ith
Gasket with an
oblong hole
M12x30
roof performance
well the cover
ole of the cabinet.
Gasket with
an oblong
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
M12x30
Blot (x4)
an oblong
hole
interference from each other.
Grounding bar
APM30H
M30H
RFC
RFC
3
Grounding busbar
