... MSEL (0.2 second) in LANBuilt-in web server, support web browser configure updateSupport two-way audioSupport ... SMTP,FTP,DDNS,DNSEthernet Port10/100Mbps RJ45Built-in Web Server Support WEB browser, remote config/update, replay, ... 1 RS485 interfaceSDKSDK available for application development and system integrationOS RequirementMicrosoft Windows 2000/2003/XP/Vista/Win7GeneralBrowserInternet Explorer ...