<b>Product description</b><br>To prevent multiple stub lines failing in case of a short-circuit, the FDCL221 line separator can be inserted into the detector loop. It is used where several stub lines join the FDnet/C-NET at a single point and no other device is installed between the T-taps. Intended for retrofitting collective systems to addressable Sinteso/Cerberus PRO fire detection systems.<br>The line separator is an electronic switch integrated into FDnet/C-NET that opens the negative conductor in a short-circuit, allowing the unaffected side to continue operating. It provides 2×2 detector-line terminals and a yellow LED indicating short-circuit separation.<br><br><b>Product identifiers</b><br><ul><li>Product No.: FDCL221</li><li>Stock No.: A5Q00004011</li><li>GTIN: 4047625014940</li></ul><br><br><b>Documents (selected titles available)</b><br><ul><li>Datasheet – Line separator</li><li>LPCB Certificate – FDCL221, FDCL221-M</li><li>VdS Certificate – FDCL221</li><li>Certificate of constancy of performance – FDCL221</li><li>UKCA Certificate of constancy of performance – FDC</li><li>EC Declaration – FDCL221</li><li>Declaration of Performance – FDCL221</li><li>RCM Declarations – Cerberus / Sinteso</li><li>Environmental Product Declaration – FDCL221</li><li>Installation Instructions – Line separator (multilingual)</li></ul><br><br><b>Accessories</b><br><ul><li>FDCH221 – Housing for input/output modules</li></ul><br><br><b>Technical specifications</b><br><ul><li>Standard: EN 54-17</li><li>Protection category: IP44</li><li>Operating voltage: DC 12…33 V</li><li>Operating temperature: -25…70 °C</li><li>Storage temperature: -30…+80 °C</li><li>Relative humidity: ≤95 % RH</li><li>Communication protocol: FDnet/C-NET</li><li>Quiescent current: 250 μA</li><li>System compatibility: FDnet → FS20, AlgoRex, SIGMASYS; C-NET → FS720</li><li>Color: Transparent</li><li>Dimensions (W × H × D): 44 × 47.5 × 10 mm</li><li>Number of addresses: 1</li></ul>