The Codesec IS101 Short Circuit Isolator acts as a digital “safety valve” within an addressable loop. In a standard wiring configuration, a single short circuit can potentially bring down every detector and module on the line; however, by strategically placing IS101 modules between groups of devices (typically every 20-25 devices), the system can isolate only the affected segment. The module continuously monitors the loop voltage and current; upon detecting a short, it opens the circuit to the faulty section, allowing the control panel to continue communicating with all other devices from the opposite direction of the loop. Key Features ? Automatic Fault Isolation: Rapidly detects and isolates short-circuit faults to protect the rest of the addressable network. ? Self-Restoring Technology: Automatically reconnects the isolated section once the short circuit is removed, eliminating the need for manual resets. ? Zone Protection: Ideal for segmenting loops by floor or fire compartment, ensuring the system remains compliant with safety standards. ? Visual Status Indicator: Features an onboard LED that illuminates when the isolator is active (indicating a fault in the section). ? Transparent Operation: Does not require an address on the loop, meaning it provides protection without consuming one of the available device slots. Technical Specifications ? Model: Codesec IS101 (Short Circuit Isolator) ? Compatibility: All Codesec Addressable Fire Alarm Loops ? Operating Voltage: 17V DC – 28V DC ? Standby Current: 0.2mA or less ? Isolating Current: 10mA or less ? Voltage at Isolation: Approximately 10V ? Maximum Loop Current: 2A (Continuous) ? Operating Temperature: -10?C to 55?C ? Dimensions: 75mm x 45mm x 25mm ? Housing Material: High-Impact Fire-Retardant ABS
