Hikvision DS‑K2701X(O‑STD) is a professional single‑door network access controller (Ultra Series) designed for enterprise and commercial access‑control systems. It supports native 1‑door control with scalable expansion via DS‑K2M002X modules, robust downstream RS‑485 redundancy, battery backup/charging and web‑based configuration for easy on‑site management.

Key features

• Native single‑door controller; expandable to up to 125 doors using up to 62 DS‑K2M002X extension modules.
• Downstream RS‑485 redundancy wiring (5‑channel downlink; one channel reserved for redundancy) for improved communication stability.
• Web browser configuration and management — no desktop PC software required.
• Advanced access functions: multi‑door interlock, anti‑passback, multi‑factor authentication and first‑person‑in support.
• Large capacities: up to 100,000 users, 10,000 fingerprint templates, 200,000 cards and 600,000 event records.
• Extensive I/O and comms: Gigabit Ethernet, 7× RS‑485 (2 for readers + 5 for modules), 2× Wiegand, USB 2.0, lock relay, exit button, door contact, fire input, alarm I/O and tamper.
• Backup battery support with charging/discharging and status indicators for power/communication/door/RS‑485.

Use cases

• Commercial offices, data centres and education campuses requiring scalable, networked access control.
• Installations that require high user capacity, extensive event logging and resilient communications.
• Projects where browser‑based setup and remote management reduce onsite PC configuration.

Compliance & installation

• Refer to the Hikvision datasheet and product documentation for certification details (CE/UKCA where applicable) and exact mechanical dimensions.
• Installations should follow local wiring and safety regulations; recommended for qualified installers only.

For full technical details and the official datasheet, refer to Hikvision's product documentation.