The system controller manages all system related functions of public address and Voice Alarm system.

This is the Emergency Telephone functional specification for the ET system Implemented along the expressway. The document will be divided into three portions namely Road side Equipment Hardware, Control Room Equipment Hardware and Software and Graphical user interface section.

KNTECH IP network voice broadcasting system is a pure digital audio sound reinforcement system based on an IP data network platform

The school pa system, from the selection of equipment, system design ideas, and equipment design indicators, all meet the existing campus needs and relevant national standards.

The broadcasting system is abbreviated as DMB, which is the English abbreviation of Digital Multimedia Broadcasting, and is a new concept multimedia mobile broadcasting service integrating communication and broadcasting.