• EVX-OSB-Disabled-Refuge-Type-B-Outstation
  • EVX-OSB-G Refuge Alarm Type B Outstation

EVX-OSB-G Refuge Alarm Type B Outstation

Part No. EVX-OSB-G
  • Fits a standard double socket back box (86mm x 146mm).
  • Modern compact design
  • High volume ringer
  • Red status LEDs in call button
  • Green flashing call button for location
  • Flush or surface mount options
  • Fully monitored to BS 5839-9:2021
  • Braille enhanced call button

Product Details

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

The EVX-OSB-G is a type B outstation exclusively for use as part of a refuge alarm system; it’s fully compatible with the EVX standalone and network systems.

The outstation is constructed from injection moulded green polycarbonate and features a green flashing button to aid location. Operation is via a single call/ cancel button. Pressing it once activates the call, and a second press cancels the call.

The outstation should be installed in the designated Refuge Point, which is usually located in a protected stairwell/stair lobby.


Dimensions (mm)146(H) x 86(W) x 22(D)


Outstation Cables

TypeEnhanced / Standard* Fire Resistant
Cores2 core 1.5mm Screened


Standards Compliance

EMCEN55035:2017+A11:2020, EN55032:2015+A1:2020
Product FamilyBS 5839-9:2021, BS9999

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