15
3.7 Automatic circuit breaker
The switch is provided with an automatic circuit breaker for ease of
maintenance.
Figure 3.7 Automatic circuit breaker
3.8 Additional functions
3.8.1 Restarting cameras in case of hanging
PSW-2G8F+Hot continuously monitors the camera connection to the switch.
There are three ways to detect camera hanging:
•
No connection to the camera (Link)
•
No response to service requests (Ping)
•
Reduction of port speed below the established limit (Speed)
The switch continuously (once a minute) monitors the Link signal from the IP
camera. If the switch fails to detect the Link signal, then a one-minute timer is
started, and after that the connection is checked again. If the Link signal does
not appear, the switch removes power for 10 seconds and supplies it again,
restarting the camera. In other words, if the switch fails to see the Link signal
from the camera twice in succession at an interval of 1 minute, it restarts the
Video camera restart using Link signal