Rochester Instrument Systems AN113 Circuit Board

The Rochester Instrument Systems AN113 Circuit Board is a DC Alarm Board (AN-113) from Rochester Instrument Systems, implemented as a compact printed-circuit board that serves as the alarm interface within compatible Rochester Instrument equipment. Marketed specifically as an AN-113 DC Alarm Board, the part is cataloged by several distributors under the Rochester Instrument name and is referenced in repair and surplus listings as AN-113. The AN-113 designation appears across multiple reseller entries, with Elite.Parts and repair shops listing it as the Rochester Instrument DC Alarm Board, confirming its identity as a dedicated alarm module in PCB form. In used-surplus marketplaces you’ll also find listings labeled “AN113” bearing the Rochester Instrument brand, which underscores the component’s longevity in legacy Rochester Instrument installations. As a DC alarm board, the AN-113 is designed to monitor and relay alarm conditions within the system’s control architecture, making it a targeted replacement part for technicians maintaining older Rochester Instrument panels. Buyers typically encounter this part when restoring or refreshing legacy Rochester Instrument control equipment, where exact electrical interfaces and connector layouts align with the AN-113 specification in the manufacturer’s documentation.