User`s manual

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Appendix A How to Set Up the
Alarm Trigger Function
The VPort D351 supports an alarm trigger function that allows the video source to be switched to
a video source, based on an alarm trigger condition. For this function to work, the video source
must be set up to send alarm messages to the VPort D351 with the sendalarm.cgi command. Users
can implement the sendalarm.cgi command with the HTTP Event function supported by VPort
series products, or customized software.
HTTP Event function
The following example uses the VPort 351.
Step 1: Set up the HTTP Event Server.
Hostname
If the VPort D351 uses a domain name instead of an IP address, then type the domain name in the
Hostname input box. If a domain name is not being used, then leave the Hostname field blank.