Huawei Airbridge BTS3612A-1900 Technical Manual page 28

Technical Manual
Airbridge BTS3612A CDMA Base Station
II. Structure and principle
The position of BFIB is shown in Figure 2-9.
The BFIB implements interface conversion function. Refer to "3) Interface" for the
definition of interfaces.
Its structure is shown in Figure 2-11.
(1) MOLEX connector
Figure 2-11 Illustration of BFIB structure
III. External interface
Fan box electrical interface
Power supply ports and serial port communication ports are provided for the fan boxes
through MOLEX connectors.
System power supply interface
The interface leads in the system power through big 3-pin connectors.
System serial communication interface
External serial communication interface is provided through the DB-15.
IV. Indices
Dimensions: 230mm%30mm (Length%Width)
(2) Large 3PIN power socket
2-20
System Principle
Chapter 2 Baseband Subsystem
(3) DB-15 signal socket