This monitoring module is designed for earth fault detection on 100V speaker outputs in VARIO-LINE systems or comparable public address installations. It ensures continuous monitoring for grounding faults within the speaker cabling—an essential safety feature in voice alarm systems.

In the event of a fault, such as a speaker line coming into contact with ground potential, an internal alarm tone is triggered, alerting the user to the earth fault condition. This allows for early detection of wiring or installation issues before they compromise system functionality or safety. The module is suitable for factory installation or retrofit into existing systems.

Technical Data:

Designation:

• Earth fault monitoring module

Function:

• Continuous monitoring of 100V speaker lines for earth faults
• Audible alarm in the event of a fault

Monitoring method:

• Potential difference measurement between line and ground

Fault response:

• Internal acoustic alarm signal

Application area:

• Voice alarm systems (VAS)
• VARIO-LINE or similar PA systems

Installation:

• Internal mounting in central unit (pre-wired)

Compatibility:

• Suitable for all 100V speaker outputs
• Scalable to system size

Special Features:

• Enhanced system safety through automatic fault detection
• Early warning of wiring or installation problems
• Essential for EN 54-compliant evacuation systems

Scope of Delivery:

• 1x pre-tested earth fault monitoring module
• Installation manual and wiring diagram
• (Installation service on-site or factory-side)