Motorola SC 4812ET RF Hardware Installation Manual page 53

Site Preparation
– continued
Figure 2-3: Grounding Ring Detail
GROUNDING RING #3 BSWG
(#2 AWG;35 mm
COPPER W/TIN COATING
GROUND TO ANTENNA
#3 BSWG (#2 AWG; 35
mm
W/TIN COATING
Figure 2-4: Conduit Stub Height Detail
Apr 2001
SC
TM
Grounding Ring:
The following information details installation of the site grounding ring.
Refer to Figure 2-3 for detail dimensions.
GROUND TO CABINET (1 PER CABINET) #3 BSWG
2
) SOLID (#2 AWG;35 mm
609 mm
(2' 0")
2
) SOLID COPPER
609 mm
(2' 0")
609 mm
(2' 0")
GROUND TO CABINET (1 PER CABINET) #3 BSWG (#2
AWG;35 mm
Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î
Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î
Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î
4812ET RF and Power Cabinet Hardware Installation Manual
2
) SOLID COPPER W/TIN COATING
2
) SOLID COPPER W/TIN COATING
CONDUIT STUBS ARE
TO BE 25 TO 50 MM (1"
TO 2") ABOVE
CONCRETE PAD.
NOTE
– Conduits that are Pre–installed must be capped to
prevent moisture from collecting prior to cabinet
installation.
– Used when I/O goes through the bottom of the
cabinet I/O area, i.e. when conduit is set in concrete
pad or floor.
2438 mm (96")
GROUND
RODS (8–12)
GROUND TO REBAR
(CADWELD)
REBAR JOINTS
(CADWELD) (4)
FRONT
REBAR
10 mm (3/8")
MINIMUM.
CONCRETE
PAD
609 mm
(2' 0")
CONCRETE
PAD
DRAFT
2
53