Справочник Пользователя для Nokia Solutions and Networks T6HG1
R20 1X UBS Macro BTS Hardware Installation
Site verication
Table 2-7
Minimum frame clearances for maintenance - front and rear access
Front
Rear
Top
Left side
Right side
Bottom
700 mm
(27.55 inches)
150 mm
(5.9 inches)
300 mm
(11.8 inches)
0 mm
(0 inches)
0 mm
(0 inches)
0 mm
(0 inches)
Frame DC input power and power cabling information
Table 2-8
gives DC input power cabling and circuit breaker information.
For frame maximum and typical power consumption, refer to the
UBS (800 MHz) BTS
Specification (B1)
document or
UBS (1.9 GHz) BTS Specification (B1)
document
whichever is applicable.
Table 2-8
+27 V DC and –48 V DC Frame Power Cabling and Power Supply Breaker
Information
Qty of XMIs
Maximum
cable length
Cable
size
(AWG)
Cable insulation
temperature rating
(° C)
Qty of power
feeds (+ and
- pairs)
Breaker size per
feed (Amps DC)
1
661.11 cm
(21.69 ft)
2/0
200
1
250
1
833.63 cm
(27.35 ft)
3/0
150
1
250
1
1051.25 cm
(34.499 ft)
4/0
150
1
250
2
661.11 cm
(21.69 ft)
2/0
200
1
250
2
833.63 cm
(27.35 ft)
3/0
150
1
250
2
1051.25 cm
(34.499 ft)
4/0
150
1
250
3
661.11 cm
(21.69 ft)
2/0
200
2
250
3
833.63 cm
(27.35 ft)
3/0
150
2
250
3
1051.25 cm
(34.499 ft)
4/0
150
2
250
Continued
68P09283A62-2
2-17
PRELIMINARY
AUG 2007