STI STI-SA5600-B Select-Alert Siren/Strobe Controller

The STI-SA5600-B is a dedicated alert controller that manages siren and strobe activation across access control and security installations. It operates on 9VDC and delivers a dry contact relay output rated at 12VDC, 50mA — sufficient to trigger external siren and strobe units in multi-door environments. The controller integrates with HID and NFC/13.56MHz credential systems supporting up to 32 user accounts, making it suitable for small to mid-scale commercial and institutional deployments.

Compatibility

The STI-SA5600-B pairs with access control systems that use HID and NFC/13.56MHz readers and require external alert notification. The tamper contact is normally closed (N.C.) at 12VDC, 50mA — compatible with wired door frames and cabinet-mounted alert applications. The 9VDC power requirement means it can run from battery backup or standard access control power supplies; verify your existing power distribution can supply 9VDC before integration. Operating temperature range of 32°F to 120°F limits deployment to climate-controlled indoor environments — not rated for outdoor or unheated enclosures.

Installation Notes

Mount the controller on a standard electrical box or cabinet surface using the included fastening options. Wire the dry contact relay output (Form C contact) to your external siren and strobe triggering circuit — the 50mA capacity governs how many alert devices can be driven per output. The tamper switch should be wired into your security system's N.C. loop so removal or tampering triggers an alarm event. Ensure 9VDC supply is stable and isolated from high-current circuits to prevent noise-induced false triggers. The unit is for indoor use only.