Napco GEMC-SDW Schottky Diode Wire Harness

Keep your Gemini C-Series fire alarm installations clean, compliant and scalable with the Napco GEMC-SDW Schottky Diode Wire Harness. Designed by Napco Security Technologies as a UL-listed Fire Alarm Control Panel Accessory, this harness streamlines two-wire smoke detector wiring and enables the GEMC-XXXMB combination control panels to support up to 32 FW-2S smoke detectors (each with an integral 85 dB sounder) when used with the GEMC-F8ZCPIM Conventional 8-Zone Expander Module. Each zone that uses detectors with integral sounders requires its own GEMC-SDW harness; zones without sounders do not require the harness (up to 40 FW-2S allowed per zone without sounders). The GEMC-SDW is sold as a convenient 4-piece pack for professional installers, reducing trips for parts and helping maintain consistent, reliable connections across multiple zones. Ideal for security integrators, monitoring centers and fire alarm contractors, the harness supports safer, cleaner installations and simplifies troubleshooting. Add Napco GEMC-SDW harnesses to your next fire alarm, security or surveillance project to improve installation speed and ensure code-compliant monitoring. Order now or contact your supplier for volume pricing and application guidance.

• Reduce installation time and wiring complexity by using purpose-built Schottky diode harnesses for Gemini C-Series panels
• UL Listed sub-assembly for code-compliant fire alarm system installations and reliable monitoring
• Enables support for up to 32 FW-2S two-wire smoke detectors with integral 85 dB sounders when paired with the GEMC-F8ZCPIM expander
• Pack of 4 harnesses (GEMC-SDW) provides cost-effective coverage for multi-zone projects and field spares
• Prevents zone conflicts by requiring one harness per zone where FW-2S sounders are active, simplifying system design