One access modules EL550 and EL554 with electronic and buzzer call respectively for 4+'n' installations will desapear.
It is due to the new sound module EL555, that substitutes the two precedent . This module should be used in one access door entry systems on 4+'n' installations, with buzzer or electronic call.
It is specially a good new for installators and distributors who could reduce their stock volume and save money for it. Futhermore, allows to installator to decide which kind of call either buzzer or electronic call until the last moment.
The reference for this new module is 11280555.