Loopdrive

The loudspeaker line isolator fault isolator module (FIM) is the successor in our range of loudspeaker loop-isolator devices that are using our patent technology to deliver a higher level of availability of evacuation loudspeaker lines that are installed according to the return-loop principle.

A loudspeaker failure in a faulty section between any two FIM’s in the loop is automatically detected and isolated in order to ensure maximum availability of the remaining loudspeakers on that same loop. The FIM protects the loop integrity against any open and wire-to-wire short circuits.

The FIM-VC is a T-branch field isolator module with integrated volume control for the T-branch speaker load. A pilot-tone sent over the speaker line will force the FIM-VC into ‘override’ mode, forcing the attached volume controle to switch to the maximum audio level. Any local music source connected to the FIM-VC through the aux-input will mute.

The FIM-VC comes with a 11-step wall-controller, a single gang flush-mount volume controller with override function. This volume controller is equipped with an aux-entry for a local audio source that overrides in case of paging and emergencies.

The Loopdrive Booster (LDB) is the heart of the Loopdrive system. This device drives up to 200 FIM’s over a dual-core cable. A single LDB can pass 800W of audio signal from an amplifier and injects at the same time DC to the loop for powering and managing FIM modules. One amplifier channel can be split into multiple LDB in parallel, creating multi-loop with individual surveillance for multi-zone paging applications.

The LDB clicks on a DIN-rail that provides DC power and accommodates for the RS485 data connection and GeneralFault contact to a maximum of 32-LDB’s on a single DIN-rail. Front buttons and indicators allow for quick access to the various functions and indications of the Loopdrive system.

Sniffer is not only visualizing the various commissioning procedures but also provides streamlined methods for faultfinding and device allocating without the direct need for a digital communication protocol over the 2-wired audio line’s. It fulfills the user’s needs and expectations by far.

Remote controlled zone-extender module for additional 6-LDB sub zones

The 4E-SW6 Lite has the same basic functions as the 4E-SW6, but with the following exceptions:

• No loudspeaker-line surveillance
• No need for EOL
• Specially tunned for Loopdrive LDB loads
• Specially tuned for loudspeaker zoning without loudspeaker surveillance
• EN54-16