Zte ZXC10 CBTS O1, Руководство по установке

Страница: 51 / 167

Confidential and Proprietary Information of ZTE CORPORATION
51
E1/T1 Interfaces
CBTS has a group of E1/T1 interfaces in a row. E1 interfaces are DB 44
connectors which lie in rightmost in Figure 28 marked as BSC.E1_G0 and
BSC.E1_G1. Figure 31 shows E1 interfaces.
F
I G U R E
3 1 - C B T S E 1 I
N T E R F A C E S
FE Interfaces
Figure 32 shows CBTS FE interfaces. There are eight FE interfaces laying
left to E1 interfaces in Figure 28 forming two rows.
Upper row consists of M_TEST, S_TEST, BSC_FE and R_TEST interfaces.
These interfaces are only used for testing low level messages and have
nothing to do in actual operation of CBTS. Use BSC_FE interface to
connect CBTS to BSC, when IP trunk is used to connect CBTS and BSC.
F
I G U R E
3 2 - C B T S F E I
N T E R F A C E S
Lower row consists of S_FE1, M_FE1, S_FE0 and M_FE0 interfaces. Use
these interfaces to connect multiple cabinets. Use M_FE1 and M_FE0 for
media and S_FE1 and S_FE0 for signal stream respectively.