QNAP Security VioStor NVR (Version: 4.1.2) - Manual (Page 190)

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(6) External event (user-defined events)
To create a self-defined event on the NVR, select ‘User-defined Event’ under ‘External
event’ on the ‘Event List’. Then click the + button. Enter the event name, for
example, ‘door’.
After creating an event, click the event name and define the action on the right
(discussed in the later sections). After configuring the action settings, enter the CGI
command (including the self-defined event name) in the web browser (Internet
Explorer) to trigger the action anytime. The format of the CGI command is:
http:// NVRIP /cgi-bin/logical_input.cgi?name= event-name . For example,
http:// 10.8.12.12:80 /cgi-bin/logical_input.cgi?name= door