Corridor lamp for NEM sub stations.
Master in 10, 20, 30, and 40-station sizes ( with or without handset)
20 and 40 call add-on selectors for expansion
Built-in All Call
Press to talk at master or use handset, hands-free at sub
Group call up to 10 subs at a time
Optional background music - requires NB-U ( max. 40 stations) and 10W, 25V or 8& PA amp ( N/ A from Aiphone)