EL651 sound module

• ✓ For Nexa push buttons door panels.
• ✓ 4+n analogue installation.
• ✓ For systems with several access doors.
• ✓ External switching units are not required.
• ✓ Sound module with independent door panel and telephone adjusting level volume.
• ✓ Removable terminal connector for easy wiring.
• ✓ Two selectable electronic call types, allowing the tenant to distinguish which door panel is calling.
• ✓ Acoustic acknowledgement signal.
• ✓ While busy channel conditions, acoustic tones are reproduced on the door panel if someone tries to make a call.
• ✓ Handset hang recognition that removes busy channel fixed times.
• ✓ Connection to push button modules using small flat cables provided with the modules.
• ✓ Includes two push buttons.