- Automatic Transfer Switch 
- Main Distribution Board (MDB)
- Building Management System
- Telephone & Data System
- CCTV & MATV System
- PA System
- Fire Alarm System
- Fire Fighting System

MATV (Master Antenna Television) system is basically a television signal distribution system that sends signals from an aerial to various points. An MATV system varies in size and complexity depending on the location

Public address system (PA system) is an electronic sound amplification and distribution system with a microphone, amplifier and loudspeakers, used to allow a person to address a large public