The IR-204E is a versatile 4-wire audio intercom station designed for professional installation in multi-tenant buildings. It offers flexible mounting options, fitting a standard single-gang 'gem' box or surface-mounting directly to a wall. Installers can easily configure the system for either AC or DC door release via terminal connections and set a delayed door release using the internal DIP switch. Additional functions include a dedicated Post Office door lock release terminal and support for multi-entrance operation (requires PK502B). The station features both Braille legends and clear iconography, ensuring full accessibility.

Key Specifications:

• Wiring: 4-Wire configuration

• Mounting: Single-gang box or surface mount

• Door Release: Selectable AC/DC power with adjustable delay

• Special Functions: Post Office lock release, multi-entrance capable (w/ PK502B)

• Call Tones: Selectable steady or warble tones for source identification

• Accessibility: Braille legends, English text, and universal icons