ZTE Corporation ZXMBW-RA25 Manuale Utente
Chapter 2 Installation Preparations
Confidential and Proprietary Information of ZTE CORPORATION 9
Power Supply Check
Table 5 lists the power supply requirements for the RA25 chassis.
T
A B L E
5
P
O W E R
S
U P P L Y
R
E Q U I R E M E N T S
Type
Nominal Value
Operating Range
110 V AC
85 V AC~138 V AC
AC
220 V AC
150 V AC~300 V AC
DC
-48 V DC
-40 V~-57 V
Grounding Check
The RA25 must use the joint grounding mode, with the
grounding resistance less than 5 ohm.
grounding resistance less than 5 ohm.
Other Checks
n
The support equipment or parts (for example, outdoor
cabling rack, antenna pole, iron tower, and grounding copper
busbar) must comply with the engineering design
requirements of the RA25;
cabling rack, antenna pole, iron tower, and grounding copper
busbar) must comply with the engineering design
requirements of the RA25;
n
The equipment to be interconnected with the BBUA and
power equipment is ready.
power equipment is ready.