Grundig GRN-R5128N, Руководство пользователя

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- The IP camera frequently switches between going online and of fl ine and the status of it displays
“Disconnected”.
Possible Reasons:
a) The IP camera and the NVR/DVR versions are not compatible.
b) Unstable power supply of the IP camera.
c) Unstable network between the IP camera and the NVR/DVR.
d) Limited fl ow by the switch connected with the IP camera and NVR/DVR.
Steps:
1. Verify that the IP camera and the NVR/DVR versions are compatible.
1) Enter the IP camera Management interface “Menu> Camera> Camera> IP Camera”, and view the fi rmware
version of the connected IP camera.
2) Enter the System Info interface “Menu> Maintenance> System Info> Device Info”, and view the fi rmware
version of the NVR/DVR.
2. Verify whether the power supply of the IP camera is stable.
1) Verify that the power indicator is normal.
2) When the IP camera is of fl ine, please try the ping command on the PC to check if the PC connects with the IP
camera.
3. Verify whether the network between the IP camera and the NVR/DVR is stable.
1) When the IP camera is of fl ine, connect the PC and NVR/DVR with the RS-232 cable.
2) Open the Super Terminal Software, use the ping command and keep sending large data packages to the
connected IP camera, and check if there exists any packet loss.
NOTE: Simultaneously press "Ctrl" and "C" to exit the ping command.
Example: Input ping 172.6.22.131 –l 1472 –f.
4. Verify that the switch is not ‘ fl ow control’.
Check the brand, model of the switch connecting the IP camera and the NVR/DVR, and contact the manufacturer
of the switch to check if it has the function of ‘flow control’. If so, please turn it down.
5. Check if the fault is solved by step 1 to step 4. If it is solved, fi nish the process. If not, please contact your
system supplier for support.
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