The Hikvision DS-K2601 ACS network controller is designed to organize a single-door access point. The board is enclosed in a metal case, based on a 32-bit high-speed processor. The device is equipped with a built-in clock. Supports 4 readers: 2 — Wiegand (W26/W34), 2 — RS-485. Network interfaces: TCP/IP, RS-485. Memory capacity: 16 MB — 100,000 cards, 300,000 events, expandable to 200,000 cards and 600,000 events, with a maximum of 20 digits in the card number. Alarm input/output (9/2): inputs — Alarm Input×4, Door Magnetic×1, Door Switch×1, Case Input×2, Tamper-proof×1; outputs — Switch Relay×1, Alarm Relay×1. Supports loading alarm events. LED indication: power supply, connection status, alarm, built-in clock. Power supply is DC 12 V/1A, consumption is up to 4 W without load, up to 50 W with load, dimensions are 370×345×90 mm. Operating conditions: temperatures -20 °C... +65 °C, humidity 10-90%. Certification — CE, FCC. The warranty is 3 years.