
Cabinet Specifications
– continued
DRAFT
SC
TM
4812ET RF and Power Cabinet Hardware Installation Manual
Apr 2001
V0B.03
128
Physical Specifications
Table B-1: Cabinet Dimensions & Clearances
Description
Specification
Reference Chapter
SC 4812ET RF Cabinet
Height
1677mm (66”)
Chapter 1
Width
1423mm (56”)
Chapter 1
Depth
915mm (36”)
Chapter 1
Weight (Max)
680 kg (1500 lbs)
Chapter 2
Rear Clearance
510mm (20”)
Chapter 1
Front Clearance
1145mm (45”)
Chapter 1
Left Clearance
255mm (10”)
Chapter 1
Right Clearance
130mm (5”)
Chapter 1
SC 4812ET Power Cabinet
Height
1677mm (66”)
Chapter 1
Width
1423mm (56”)
Chapter 1
Depth
965mm (38”)
Chapter 1
Weight (Max, with batteries)
1590 kg (3500 lbs)
Chapter 2
Weight (as shipped, without batteries)
544 kg (1200 lbs)
Chapter 2
Rear Clearance
660mm (26”)
Chapter 1
Front Clearance
1145mm (45”)
Chapter 1
Left Clearance
130mm (5”)
Chapter 1
Right Clearance
330mm (13”)
Chapter 1
Indoor Ventilation Specifications
If the SC4812ET is installed in an indoor location, Adequate ventilation
must be available to dissipate heat loads of 7,500 Watts (25,600 Btu/hr)
for the RF Cabinet and 3,000 Watts (10,300 Btu/hr) for the Power
Cabinet (a total of 10,500 Watts; 35,900 Btu/hr), and maintain a
maximum temperature of no greater than 50 Deg C (122 Deg F).
Grounding Specifications
The ground system resistance must be less than 10 Ohms, with 5 Ohms
or less being the goal, see ”Grounding Guidelines for Cellular Radio
Installations” Motorola P/N 68P81150E62 for details.
AC Power Specifications
The Power Cabinet is rated at 130 Amps (100 Amps continuous/130
non–continuous in the range of 208–240 VAC). Maximum cable size
that can be accommodated is 300 kcmil. Cable sizing should be
determined by Local Electric Codes, using 90 Deg C rated conductors,
and derating for 50 Deg C operation. Motorola recommends not less
than #2/0 AWG (#1 BSWG; 50 mm
2
) copper for buried/raceway cables
to the power pedestal, with an associated power pedestal breaker size of
150 Amps for a single Power Cabinet.
B