When installing Wireless Professional, the optionally available IO-Box provides added security. This acts as an interface - for example to a fire alarm contact - and enables double fail-safety: even if the system's control centre is no longer functional in the event of a fire, it remains capable of reacting.
Thanks to the active signal at the fire alarm input, the IO box automatically switches on all switchable emergency lights - reliably and independently of the status of the control centre. This ensures maximum safety at all times.