Siemens A5Q00004011 FDCL221 line separator

To ensure that several spur lines do not fail in the event of a short circuit, line separators can be inserted between them. The line separator is used where several spur lines are connected to the FDnet/C-NET at one point if there is no other device between the branches. Converting existing collective systems to addressable Sinteso and Cerberus PRO fire alarm systems. The line separator is an electronic switch that is inserted in the FDnet/C-NET and separates the negative conductor in the event of a short circuit so that the side without a short circuit can continue to operate. The line separator has 2x 2 connections for the detector line. The yellow LED for the status display signals the short-circuit disconnection.