1. Application Description
1) Service Description
The northbound interface is used by other manufacturers or operators for access and management. In the telecommunications management network (TMN), the northbound interface is the interface between the EML and NML.
The U2000 is an operation and maintenance (O&M) system that centrally manages Huawei wireless products and provides a full range of northbound interfaces to meet a variety of operator requirements. Operators can select interfaces and interconnection modes based on the requirements of third-party O&M systems on the live network.
Figure 1-1 shows the main northbound interfaces provided by the U2000. Actual data instances of the interfaces depend on the definition of the NE data, including parameters, counters, and alarms.
Figure 1-1 Northbound interfaces provided by the U2000
 

2) Documentation Description
Northbound data definition: Northbound data definition documentation focuses on the Pico and contains its northbound data definition (in terms of counters, alarms, and events).   
3.Obtaining the Documents

Product	Version	Link
BTS3911B	V100R012C10	BTS3911B V100R012C10 NBI Data Documents
BTS3911B	V100R013C10	BTS3911B V100R013C10 NBI Data Documents
BTS3911B	V100R015C10	BTS3911B V100R015C10 NBI Data Documents

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