SDC 423MUL1G 10-Door Access Controller
Overview
The 423MUL1G is a 10-door access controller engineered for deployments requiring multi-credential flexibility without vendor lock-in. It accepts DESFire, MIFARE, NFC/13.56MHz, and 125kHz proximity credentials on a single controller, eliminating the need for separate hardware when integrating card readers, keypad entry, or mixed credential environments. With 250,000 user record capacity, it scales to mid-sized enterprise access management — warehouses, office parks, and multi-tenant facilities where gradual credential migration (legacy proximity to modern smart card) must coexist operationally. Runs on 24VDC, supporting both hardwired and PoE-delivered power infrastructure.
Compatibility
Integrates with proximity card readers, keypad entry systems, and DESFire/MIFARE smart card installations across mixed deployments. Communicates via OSDP protocol, ensuring compatibility with third-party access control management software and existing door control panels without middleware translation layers. Supports reader integration in multi-reader environments where credential type varies by entrance or tenant zone.
Installation Notes
Operates at 24VDC ±10%, compatible with standard power supplies and PoE injectors delivering 24V output. Wire leads are 6-inch, 20 AWG — account for conduit routing and panel layout when planning door strike and sensor connections. Contact rating of 3 Amp @ 30VDC resistive handles typical electronic strikes and REX (request-to-exit) sensor loads; verify strike amperage against this limit during wiring design. Single-gang form factor fits standard electrical enclosures.
