Description

The Bell System 719S is a reliable and scalable telephone entry switching unit designed to control door access via up to two entrances — and extendable up to eight entrances when multiple units are combined. This system provides a secure and efficient solution for residential or commercial door entry applications where multi-door access control is required.

The 719S unit switches communication to the appropriate entrance panel when a user is called and ensures the lock release is activated only at the calling door. With adjustable lock release and active timing settings, it allows for greater system control and flexibility. It’s compatible with standard 11.5V to 15V AC or DC power supplies and supports fail-secure lock operation.

Housed in a robust enclosure, this unit is easy to install and is ideal for multi-entrance apartment blocks, commercial buildings, and secure facility access control.

Key Features

• Supports 2-door entry operation per unit
• Expandable up to 8 entrances using multiple units
• Switches audio communication to the correct panel only
• Activates lock release for the calling door only
• Adjustable lock release timing (3, 5, 10, 20 seconds)
• Adjustable active time (30, 60, 90, 120 seconds)
• Voltage-free exit input (normally open contact)
• Compatible with fail-secure locks
• Compact and wall-mountable design

Applications

• Multi-door residential complexes
• Office buildings with controlled access
• Gated community entrance systems
• Commercial premises with multiple entry points
• Schools and public sector buildings