https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions
Product Info
RS485 Two Door Network Access Controller

RS485 Two Door Network Access Controller

ShenZhen Wiegand Industrial Co.,Ltd
Region: China
Update: 10/29/2010
Key Specifications
RS485 Two Door Network Access Controller

Model #: WG2002

Door controled: 2

Readers can connected: 4pcs

Control of Memory up to 40,000 Users / up to 100,000 Event Buffers

Network Communication via RS232 / RS485

English Software supportable database: Access and SQL

Powersupply: 12VDC 4-7A

Circuit board power consumption: less than 100mA

Reader Input Format: Wiegand 26 (compatible with all readers under the agreement, such as Motorola, HID, EM, Mifare one, etc.).

Means of communication: RS232 RS485 jumper-free adaptive 9600 baud

Function Description: can control two doors, enter via card swiping and exit via card swipping or button

Quantity of reader: 4pcs

Can control the gate output relay: 2pair

Open delay time: 1-600 seconds adjustable

Maximum number of connections: N * 256 pcs (N denotes the q''''ty of computer serial port, support 256pcs serial port)

Operating temperature: -40 to 70 degrees Celsius

Run Humidity: 10-90% RH, non-condensing

Signal output communication format and baud rate: RS232 RS485 adaptive self-test bus architecture, 9600 baud

Power failure protection measures: high-speed flash memory design, and never lose data

Max distance between reader to the controller: 100 meters, suggest within 80 meters, Max distance for the bus line: 1200 m, suggest within 1000 m, with expansion equipment the bus line can reach up to 3000 meters

Max distance between controller to the PC: 232 mode, 20 m (recommended 3 m) 485 mode, 1200 m, suggest within 1000m, with expansion equipment the bus line can reach up to 3000 meters

https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions