User manual
DTS Broadcast   PDH Microwave Digital Radio User Manual 
-82-
8 Network Management Systems (NMS) 
8.1 Overview 
The NMS of microwave radio is used for monitor device’s operating status, calculate the 
performance of microwave link, locate fault and control operating mode of microwave radio. 
The NMS of microwave radio is divided into 3 stages. 
The first stage is device stage, completed by CPU in the IDU, which monitors and controls the 
device modules including collecting alarms, calculating performances, configuration, safety protection, 
etc. 
The second stage is completed by IBM compatible PC, which connects IDU with RJ-45 cable 
using the protocol of TCP/IP. In this stage, we can monitor and contorl the microwave link by a PC 
with graphic interface. 
The third stage is completed by PC which running NMS software such as SNMPc, HP OpenView 
etc. This stage is used for monitor all devices by monitor PCs connected with the IDU of microwave 
link. 
The third stage is completed by PC which running NMS software such as SNMPc, HP OpenView 
etc. This stage is used for monitor all devices by monitor PCs connected with the IDU of microwave 
link. 
Figure 8-1 Microwave links of Transmission network 










