SHIELD S-A4043 Switch Monitor Module

The SHIELD S-A4043 is an addressable switch monitor module designed to monitor normally open dry-contact field devices on a fire alarm communication loop. Functioning as a reliable input interface within an addressable fire safety network, this module monitors external equipment such as water flow switches, pressure switches, tamper switches, and manual call points. It continuously supervises field wiring for open-circuit and short-circuit faults, transmitting immediate status updates directly to the fire control panel. Featuring electronic soft-addressing for easy configuration, low quiescent current consumption, and an onboard LED status indicator for visual diagnostics, the S-A4043 provides dependable status monitoring in a standard surface-mount or flush-mount enclosure.