Hello, my friends introduced your company's FC-8810A one door access controller to me. Could you tell me if you want to add a TCP switch, we have problems during the installation process ,how to connect on line? Please provide your company the FC-8810A one door access controller RS485 transfer TCP/IP communications wiring diagram, thank you!

Thank you for purchasing the access control products of our company. If you do not understand the installation and use, please refer to the following wiring diagram for connection. During the use, if you have the problem, please call the free consultation telephone: 400-688-6663