ZTE Corporation ZXG-BTS2 Manuale Utente

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C h a p t e r  
3
 
Interfaces and 
Communications 
 
This chapter details different external interfaces of the ZXG10-BTS (V2.9) 
and different interface protocols. 
Overview  
Figure 9. Illustrates the positions of the main interfaces of the ZXG10-
BTS(V2.9)in the system. 
F
I G U R E  
9
 
E
X T E R N A L  
I
N T E R F A C E  
P
O S I T I O N S   O F  
Z X G 1 0 - B T S   ( V 2 . 9 )  
BTS
BTS
BSC
LMT
MS
MS
Ex
te
rn
al
M
oni
to
ring
Sy
st
em
Um Interface
Abis Interface
MMI Interface
To
w
er
A
m
plif
ie
r
Sy
st
em
Tower Amplifier
System Interface
M Interface
B Interface
 
 
Apart from the Abis and Um interfaces, the ZXG10-BTS (V2.9) has the 
cascaded interface (B interface) between BTSs, interface (M interface) with