System Log - Planet NVR-820 User Manual

Define which system events should trigger the recorder to send out notifications if you will.
Define how the notifications will be sent and where they will be sent.
Event trigger may not work for cameras that are placed outside of your local
network or on the Internet until the "UPnP Port Forwarding" is enabled in both the
NVR and the router.

11.1.12 System Log

"System Log" keeps a record of what's been happening to the device and provides basic
information for troubleshooting.
Network Video Recorder with HDMI
NVR-820 / NVR-1620
100