Hello, dear.

You can refer to the following information.

WMPT

A WMPT is a WCDMA main processing and transmission unit.

The following figure shows a WMPT panel.

Figure 1 WMPT panel

• Specifications

• Function

• Working Principle

• Port

• DIP Switch

Function

A WMPT performs the following functions:

• Manages configurations and devices, monitors performance, and processes signaling of a base station.

• Processes signaling and manages resources for other boards in the BBU.

• Provides USB ports, transmission ports, and a maintenance port, which are used for signal transmission, automatic software upgrade, and LMT- or U2020-based BBU maintenance.

Hello friend! 

 The WMPT card Installed in BBU at slot 7 for the services of NodeB mean UMTS or 3G It receive data from RTN Transmission Rack  As the most compact indoor macro BTS in the industry, the BTS3900 features a large capacity, good extensibility, light weight, and a small size.
In addition, the BTS3900 can be stacked and combined to save space.
Technical specifications of the BTS3900. 

Thanks!