What is the function of the network access control system?
On the access control system, access control, access control card reader, access control system networking features can check the Internet specializing in the production of access control system manufacturers, like Daoerzhi control, do very good.
RS485 is the handle of the 8 connection, the theoretical distance is 1200 meters, the actual line cloth 700 meters on the signal attenuation. You need to increase the 485 amplifier, or through the fiber to 485 signal.
See your access control system is what communication, divided into two 1.RS485.2.TCP / IP
