73
APPENDIX I QUESTIONS & SOLUTIONS
The following table describes the symptoms, causes and solutions for the
problems.
Symptoms
Possible Causes
Solutions
The network
camera does
not perform
initiation after
power-on
Wrong power connection
Reconnect power cable
Power supply failure
Repair or replace power
supply
Immediate startup after
power-off
Restart 10 seconds later
after power-off
If PoE power supply is used,
too long transmission distance
may make the power of the
Power Supply Switcher
insufficient.
Shorten the length of the
power supply network
cable or replace Power
Supply Switcher with more
power
If PoE power supply is used,
connection to other electric
appliance makes the ground
level not in correct level.
Disconnect other electrical
appliances
No video signal
displayed
The plug-in for viewing image
is installed incorrectly.
Refer to the plug-in
installation to reinstall it
Network camera’s IP address
conflicts with other user’s IP
address
Set a unique IP address
Vague image
Manual focus is not precise
Carefully manually adjust
the camera focus
Содержание V942D-W310MIR-XW
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