Fig. 13.1-1 Solution (I) Of Micro-Bts Integration - Zte ZXCBTS Series Installation Manual

Transmission
interface
Fiber 1 (SDH)
Fiber 2 (SDH)
E1(1)
E1(2)
E1(3)
E1(4)
In this solution, a ZTE ZXSM T150 transmission system serves as the built-in SDH
system, and a ZTE ZXUPS L010 UPS power system serves as the UPS power
supply.On the power interface, the UPS provides 120V and -48V power outputs to
supply power for the micro-BTS and built-in SDH. Furthermore, the UPS provides
secondary power-off function to guarantee the power supply of the built-in SDH in
precedence.485 or dry contact are supported for the monitoring. There is only one
monitoring interface at the micro-BTS side and this interface is compatible with the
485 and dry contact input, that is, it supports either the 485 or dry contact for the
monitoring part. On the transmission interface side, two STM-1 optical interfaces are
supported and a maximum of four T1 interfaces can be provided. In addition, the
built-in SDH or BDM board can be selected according to the actual requirements.
2. DC micro-BTS+combinational power+built-in SDH, as shown in Fig. 13.1-2.
Power supply
AC micro-BTS
Built-in
SDH

Fig. 13.1-1 Solution (I) of Micro-BTS Integration

13-3
Chapter 13 Installing the Integrated Micro-BTS
interface
220V
-48V
485/dry contact
UPS