Bticino 3499 Line Terminator for 2 Wire Door Entry System

Bticino 3499 is a line terminator for the Bticino 2 Wire SCS BUS door entry system. It is used to terminate the riser or apartment line when the last installed device on the line is not fitted with a built-in line closing micro switch.

Install the 3499 at the furthest point on the BUS line, connected across the two BUS conductors. It is essential for correct system operation — an unterminated line can cause communication errors, echo or instability. Check whether the last device on each riser and apartment line has a built-in termination switch before deciding if this component is needed.

About This Product

The Bticino 3499 is a passive line termination device for the 2 Wire SCS BUS door entry system. It ensures signal integrity on riser and apartment lines by properly terminating the BUS where the last device does not include its own line closing micro switch. It is a low-cost but essential component for reliable system operation.

Key Features

• Line terminator for 2 Wire SCS BUS systems
• Required when last device lacks built-in line closing micro switch
• Prevents communication errors and signal instability
• Simple 2-wire connection at end of line
• Suitable for riser and apartment line termination

Technical Specifications

• System Compatibility: Bticino 2 Wire SCS BUS
• Function: Line termination
• Connection: 2-wire (non-polarised)

Common Questions

• When is this needed? Only when the last device on a riser or apartment line does not have a built-in line closing micro switch. Many Bticino devices include this switch — check the device documentation first.
• Where is it installed? At the furthest point on the BUS line, connected across the two BUS conductors.

Compatibility

Compatible with all Bticino 2 Wire SCS BUS door entry systems including audio and video configurations. Used with Sfera, Linea 2000, Linea 3000, Linea 5000 and Linea 300 entrance panels and all 2 Wire internal units.