ZTE Corporation ZXMBW-RA25 Manuale Utente
Chapter 5 External Power Cables Installation
Confidential and Proprietary Information of ZTE CORPORATION 37
Optical Fiber Installation
Figure 27 shows the structure of the optical fiber between the
BBUA and RA25.
BBUA and RA25.
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The optical fiber is a two-core single-mode waterproof pigtail
fiber with a waterproof connector of the LC/PC type. The pigtail
fiber on end A is connected to the RA25, while that on end B is
connected to the BBUA.
fiber with a waterproof connector of the LC/PC type. The pigtail
fiber on end A is connected to the RA25, while that on end B is
connected to the BBUA.
The optical fiber between the BBUA and RA25 can be installed in
the following three ways:
the following three ways:
n
When the BBUA is close to the RA25
Also, when the BBUA is installed outdoors, they can be
connected directly with the optical fiber. The optical fiber is a
waterproof pigtail fiber, with waterproof end caps and LC
connectors at both ends. The length of the core at either end
is 0.7 m. End A is connected to the RA25, while the MGB16
waterproof connector is connected to the FIBER1 port on the
interface board of the chassis. End B is connected to the
BBUA, while the MGB20 waterproof connector is connected to
the OPT1 port on the OMU interface board.
Also, when the BBUA is installed outdoors, they can be
connected directly with the optical fiber. The optical fiber is a
waterproof pigtail fiber, with waterproof end caps and LC
connectors at both ends. The length of the core at either end
is 0.7 m. End A is connected to the RA25, while the MGB16
waterproof connector is connected to the FIBER1 port on the
interface board of the chassis. End B is connected to the
BBUA, while the MGB20 waterproof connector is connected to
the OPT1 port on the OMU interface board.
n
When the BBUA is far away from the RA25
When the BBUA is installed indoors and the RA25 is installed
outdoors, they can be connected directly with the optical
fiber. The middle of the optical fiber is a waterproof pigtail
fiber, with LC connectors on both ends. The waterproof end
cap on end B is removed. With a waterproof end cap, End A
is connected to the RA25, while end B is connected to the
BBUA.
When the BBUA is installed indoors and the RA25 is installed
outdoors, they can be connected directly with the optical
fiber. The middle of the optical fiber is a waterproof pigtail
fiber, with LC connectors on both ends. The waterproof end
cap on end B is removed. With a waterproof end cap, End A
is connected to the RA25, while end B is connected to the
BBUA.
n
When the RA25 and the BBUA are installed at two different
places, and the ODF or optical fiber box is needed, two
optical fibers must be provided. One is for connection
between the BBUA and ODF, and the other is for connection
between the ODF and RA25.
places, and the ODF or optical fiber box is needed, two
optical fibers must be provided. One is for connection
between the BBUA and ODF, and the other is for connection
between the ODF and RA25.
i. BBUA to ODF
The optical fiber is an indoor fiber jumper, of which one
end is a square LC/PC connector, and other end is a
end is a square LC/PC connector, and other end is a