Event could be triggered by external HTTP-in CGI command.
It allow users to define up to 16 different HTTP-in events.
With the “External Event”, users can set its actions just like other events

It can be found at Event & Action tab of Event & Action Management page
The format of external HTTP-in event CGI is

http://IP_address/login.cgi/cgi_main.cgi?cgiName=event_ipc.cgi&eventName=Defined_N
- IP_address is the IP of NVR that command need to be delivered to.
- N is defined for what number(1~16) of external HTTP-in event need to be triggered
For example : http://192.168.1.245/login.cgi/cgi_main.cgi?cgiName=event_ipc.cgi&eventName=Defined_3
- The CGI is for sending to the NVR with IP 192.168.1.245 and trigger the external event #3