User's Manual

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