Network Card - Network Adapter User Manual
Advanced Applications 
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Download Event-triggered Snapshots 
There are 12 video image files for the video channel of three stages: pre-alarm, the moment when 
triggered, and post-alarm. Only the snapshots captured by the last event are preserved. 
Administrator and users can use FTP or URL to get the saved snapshots. They can also be 
browsed from the application page under system configuration. 
Getting triggered snapshots via URL 
/cgi-bin/snapshot.jpg?file=<value> 
Video channel
Snapshot stage 
Video 1 
Video 2  Video 3  Video 4 
snapshot before event  pre1  pre2 pre3 pre4 
snapshot upon event  trg1  trg2  trg3  trg4 
snapshot after event  pos1  pos3 pos3 pos4 
Getting triggered snapshots via FTP 
File name  Pre-alarm  Upon alarm  Post-alarm 
Video 1  v1pre.jpg  v1trg.jpg  v1pos.jpg 
Video 2  v2pre.jpg  v2trg.jpg  v2pos.jpg 
Video 3  v3pre.jpg  v3trg.jpg  v3pos.jpg 
Video 4  v4pre.jpg  v4trg.jpg  v4pos.jpg 
VPort 2140 User’s  Manual     
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