Sound module for several access doors systems with Nexa panels. 4+n installation.
For systems with several door panels.
Includes 2 push buttons.
External switching units are not required.
Two selectable electronic call types, allowing the tenant to distinguish which door panel is calling.
If channel is busy the light push button changes its colour and acoustic tones are reproduced on the door panel if someone tries to make a call.
Sound module with independent door panel and telephone volume level adjustment.
Electronic call with acoustic acknowledgement signal.
On systems with just one access door use EL655.