An EVCS is a fixed, secure, bi-directional, full duplex voice communication system to assist fire fighters during emergencies in high rise buildings or large sites where radio communication cannot be guaranteed to work due to interference from the fire corona.

The EVX-TMS Master station can accept up to eight lines of outstation, (Type A fixed phones, Type B refuge hands free points, emergency assist alarm point or jack points in Far East and Middle East applications) as required.

The touch-screen layout has four buttons allowing quick access to the main functions, and permanently displaying the number of current calls, alarms and faults.

Emergency Assist Alarm calls can be acknowledged by pressing the Icon on screen (as required by BS8300) and will return to alarm if not reset within two minutes.

The EVX-TMS has inbuilt networking allowing it to form one of the 64 panels on an EVX network installation allowing a total of 512 outstations to be accommodated. Each panel can be a master station or EVX-EX8 network expander.

The EVX-TMS is a self contained enclosure housing a master handset, 4.3” touch screen, one to four dual line cards, an EN54-4:A2 2006 power supply & battery charger and can be surface or flush mounted (Using the EVX-CBZ Bezel).

The case is made from powder coated zintec, with a smoked perspex door covering the handset. 20mm cable knock- outs are provided for all necessary cables as well as space for the single 12V VRSLA backup battery required.

The master station is configured using a spreadsheet (excel and open office) and installed using the MMC card, this also holds the site logs.

The whole site can be configured from any master station. Each outstation has three labels, one for Emergency Assist, one for EVCS and one for Fault text, each label is two lines of twenty characters.

Each Master station can be programmed to answer specific outstations, and these can differ from day to night.