6.4 Dual Detector
6.5 Standard / Residential Emergency Egress Button
The ERBRM2 (Emergency Retract Button Resistor Module) PCB needs to be fitted with any Emergency
Egress Button or Emergency Access Button / Fireman’s Emergency Access (as shown on the drawings).
This is needed to monitor the connection for short circuits. Note: Every MK5 control panel will require
this module alongside every Access or Egress Button.