Key Features

  • Fully compliant to BS5839-9:2021
  • Designed and manufactured in the UK
  • Integrated assist call 
  • Expandable from 2 to 8 lines 
  • Standalone with an option to network and monitor up to 512 lines


The Crisis Network Emergency Voice Communications System (EVCS) is designed to fully comply with BS5839 Part 9:2021 for use as a fire telephone system, disabled refuge call system or as a combined system when both fire telephones and disabled refuge points are required.

For Crisis network systems a Crisis Network Master Station must be used as the site-wide network master station. The system can then be expanded using a Crisis EVC Network Expander or Crisis Master Station in blocks of 8 lines up to a maximum system capacity of 512 lines.

The system can be configured using the touchscreen display. It has four buttons, allowing quick access to the main functions, and permanently displays the number of current calls, alarms and faults.

It can call individual outstations via a named directory list or by dialling the appropriate extension number for the desired outstation. It is also possible to call and pass control to other Crisis Master Stations.

Ideal Solution For Large Applications

Crisis EVC systems are wired using a ring and spur topology with outstations being wired on radial spurs from any master station or system expander panel. Crisis EVC Network Expanders and any Crisis EVC Network Master Stations or Crisis EVC Master Stations can also be wired in a ring network up to a maximum of 64.

Compatible Outstations

The Crisis EVC Network Master Station can support up to eight lines of outstation, including type A fixed phones, type B refuge hands free points, emergency assist call points or jack points in Far East and Middle East applications.



Tech Specs

AC Input230V AC ± 10% 50/60Hz
Internal supply5V, 16V, 27V DC
Supply and batteryMonitored Open, Short, Fuses, High Impedance
ProtectionDeep discharge, Short, Thermals
Battery type1 x 12V 7AH VRSLA
Mains fuse240V 1A HRC
Battery fuse750mA PTC
Max charge current400mA
Lines2 – 8 in 2 line blocks
Remote enableShort to use
End of line10kΩ
Cable TypeStandard / Enhanced
Cores1× 2 core radial 1mm or 1.5mm
Distance500m from master station
Outputs2, Fault & In use
Fault Relay1× Volt free NC, Com 30V DC 1A
In Use Relay1× Volt free NO, Com 30V DC 1A
Navigation Buttons3 push button navigation keys
Statutory indicators3 x PSU status indicators1 x CPU fault indicator1 x general fault indicator1 x RGB mode indicator
Touchscreen4.7” RGB touchscreen
Network Cores2 x 2 core loops, 1mm or 1.5mm (2c Data, 2C Audio)
Network Distance500m max between panels
Dimensions (W x H x D)350 x 300 x 95mm



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