OV-7204 / OV-7208 H.264 DVR User Manual
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above still appears.
12. DVR can not control the PTZ after setup?
A: Please test for the following reasons:
①
Front PTZ failure
②
PTZ decoder setting, connection and installation is incorrect
③
PTZ incorrect setup in the DVR
④
PTZ protocol decoder and DVR does not match each other
⑤
PTZ decoder and DVR address does not match each other
⑥
When multiple decoders are connected, 120 ohm resistance is needed
on the most remote end of PTZ decoder AB line, to eliminate reflex and
impedance matching, or PTZ control will not be stable.
13. Motion detection does not work?
A: Check the motion detection time and motion detection zone and make sure that
they are right setup, and check the sensitivity setting.
14. Alarm does not work?
A: Check the correctness of alarm setting and alarm connection, and make sure
that alarm signal input is correct.
15. DVR can only realize non-real-time access to LAN?
A: When access to LAN, for 8-channel DVR, it can show real-time screen only
when select “LAN” in “network environment” option in login interface; for 4-channel
DVR, in addition to select “LAN” in “network environment” option in login interface,
please select “ordinary” in “details” option under recording mode.
16. Remote login interface is available, but show “Login failed” when login?
A: 1) Please check whether the account matches the password you entered, if you
forget the password, please enter “User Password” interface of mainframe, and
click “Clear IE Password”, and login again. 2) Please check DVR local network and
remote access network. Too low network speed will cause failed login. Please try it
for several times.
17. After successful remote access, showing “user is configuring…. “?
A: Please exit all mainframe menus and keep preview status, then, remote setup is
available and storable.
18. There is drag mark on screen when real-time monitoring in client end, even short
delay?
A: 1) It’s normal if less than 10 seconds; 2) Confirm the DVR environment network
speed is guaranteed.
19. Serious image delay during cell phone monitoring?
A: 1) Change the mobile wireless network into 3G or WIFI; 2) Confirm the DVR
environment network speed is guaranteed; 3) Do not put cell phone in a weak
signal area; 4) It’s normal if less than 10 seconds.
