GeoVision GV-AS2120 4 Door Access Control Panel pre owned / great condition GeoVision GV-AS2120 4 Door Access Controller The GeoVision GV-AS2120 is a 4-door access controller with a built-in PoE feature, designed to support up to 40,000 user cards and log up to 1,000,000 events. Key specifications include:? CPU: 32-bit ARM7TDMI User Cards: 40,000 Event Buffer: 1,000,000 events Power: 12V DC, 3A or PoE+ (IEEE 802.3at, up to 25.5W) Inputs: 8 dry contact (NO/NC) Outputs: 8 relay outputs (DC 30V, 3A; AC 110-250V, 3A) Reader Interfaces: 1 RS-485 for up to 8 GeoVision readers or fingerprint readers 4 Wiegand interfaces (26~64 bit, 12V DC, 200mA) TCP/IP Interface: 1 for GeoVision network readers Battery: Replaceable button cell Dimensions: 8.27 x 8.03 x 1.83 in (approx. 210 x 204 x 46.6 mm) Weight: 1.79 lb (approx. 810 g)? Operating Temp: 32~149F (0~65C) Operating Humidity: 10%~90% RH Certifications: CE, FCC, RoHS Functionality: One-way or two-way control for 4 doors (configurable) Tampering alarm support Suitable for controlling doors, parking gates, elevator call buttons Networking and Compatibility: RS485/TCP-IP interfaces work with GeoVision readers only, while Wiegand allows use of 3rd party readers (26-64 bit), but not 3rd party software.? The GV-AS2120 offers robust access control capabilities for medium to large commercial environments. Full manuals and installation guides are available online for detailed wiring and operational support. We are wholesaler/liquidators. We bought this in a lot of items to resell. We are counting upon you to know what you are buying and if this item will suit your needs. No returns. Please only purchase this if you agree to those terms. *** PLEASE NOTE! Our store buys and sells a variety of new and used electronics, instruments, tools, antiques and many other items. We do our absolute best to thoroughly test all our merchandise and accurately describe and depict any flaw or defect we find. SHELF: 5 SA