Huawei EM770W User Manual page 12

Main and diversity antenna interfaces
There are three different kinds of antenna interfaces on the DEMO board, for both of main
and auxiliary ones.
The One is TS-5 coaxial switch connector receptacle which is as follows:
The second one is a female switchable connector used to switch signal between internal
antenna and external inspection equipment, which is as follows:
The third one is a male RF coaxial connector, which is straight, as follows:
COM1 for RS232 serial port
This RS232 serial port is an 8-wired full serial port, supporting high speed. This RS232 port
can be connected to the RS232 port of PC directly. The signal information of this interface is
shown as follows:
5