ET 861A

Digital Door Intercom Modules Digital 2-Wire Door Intercom Module with DSP technology. One relay output for direct connection to a door opener. One input for potential-free contacts allows for, for example, a door-open indicator. With an expansion interface for optional connection to, for instance, access reader module series ER 800 or expansion board EB2E2AHE. Application examples: As an intercom solution at doors and gates, barriers, turnstiles. Available in flush-mounted, surface-mounted, for installation in columns, bases, and mailbox systems. Electret microphone; Power supply from Intercom Server; Class-D power amplifier; Speaker with special diaphragm for optimal sound quality and high volume; // Digital 2-Wire: Class-D power amplifier; 1 relay output for direct connection to a door opener; 1 input for potential-free contacts.