The eSSL C3-200 two-door access controller is built on a 32-bit 400 MHz processing architecture with 32 MB RAM and 128 MB onboard flash memory, providing offline storage for up to 30,000 cardholders and 100,000 audit log events. The controller board measures 160 mm × 106 mm (6.3 in. × 4.17 in.) and comes packaged inside a powder-coated aluminium enclosure measuring 380 mm (L) × 80 mm (W) × 280 mm (H) (15 in. × 3.15 in. × 11 in.) with a total bundle weight of 3.4 kg (7.5 lbs). External packaging dimensions are 350 mm (L) × 90 mm (H) × 300 mm (W).
The system is rated for an operating temperature range of 0°C to 45°C and requires a regulated power supply of 12V DC at 1.5A to drive the main processing board and standard logic inputs.