H.264 Super Digital Video Recorder User Manual
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2.8 PTZ Decoder, The ball machine connection
A、The grounding of the PTZ decoder and DVR must be shared otherwise the common-mode
voltage will lead to the PTZ control failure. The shielded twisted pair is recommended.
B、Avoid the entrance of high voltage. Make the layout reasonably. Take precaution from the
thunder.
C、In the outlying end connect 120Ω resistance paralleled to reduce the inflection and insure the
signal quality.
D、The RS485 +、- lines of DVR can not connected with other RS485 output equipments paralleled.
E、The voltage between the +、- lines of the decoder must be less than 5V.
F、Connect the 485 lines of the speed dome with the DVR 485 interface.
G、Connect the speed dome video cable with the DVR video input.
3. Basic operation
3.1 Starting up
Plug the power supply and turn on the power supply switch. Power supply indicator light shining
indicates turning on the video recorder. After the startup you will hear a beep. The default setting of
video output is multiple-window output mode. If the startup time is within the video setting time, the
timing video recording function will start up automatically. Then the video indicator light of
corresponding channel is shining and the DVR is working normally.
Note: 1. Make sure that the input voltage corresponds with the switch of the DVR power supply.
2. Power supply demands: 220V±10% /50Hz-60Hz.
Suggest using the UPS to protect the power supply under allowable conditions.
3.2 Shutdown
There are two methods to turn off the DVR. Soft-switching：Entering “desktop shortcut menu” and
choosing “logout” in the “shutdown” option; Hard-switching：Press the power button on the front panel
or rear panel power switch can switch power.
Notice:
1、Auto resume after power failure
If the DVR is shut down abnormally, it can automatically backup video and resume previous
working status after power failure.
2、Replace the hard disk
Before replacing the hard disk, the power supply switch in the real panel must be turned off.
3、Replace the battery
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