The MDF sign is an electrical and communication signage that indicates where the main distribution frame is located. Therefore it allows officials and maintenance personnel know where to locate when needed.
A main distribution frame is a signal distribution frame. Used in telephony to link within plant equipment to cables and subscriber carrier equipment (outside plant).
MDF sign is required to be installed on commercial, retail and residential developments in accordance. Because this statutory signage indicates fire safety rules for both retail and residential developments and in accordance with the Building Code of Australia (BCA).