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8
4.3
PTZ decoder connections
Make sure the grounding of the PTZ decoder and DVR are shared
otherwise the common-mode voltage will lead to the PTZ control failing. It
is recommended to use shielded twisted pair.
Try to incorporate precautions to prevent electrical damage from an
unstable mains power source. Please use surge protection devices or
uninterruptible power supplies.
In the outlying end connect 120Ω resistance paralleled to reduce
inflections and insure the signal quality.
The 485 AB lines of DVR cannot be connected with other 485 output
equipment in parallel.
The voltage between the AB lines of the decoder must be less than 5V.
4.4
Front equipment grounding note
Bad grounding can lead to the burnout of the internal chipset.
4.5
Alarm input type unlimited
The DVR alarm output port is set to a constant opening type.
5.
Startup
Once you have setup the peripheral device connections, HDD installation and
turned on the power to the DVR, turn on the power switch located on the back
panel. The indicator on the front panel will illuminate, which will signify the device
has turned on successfully. After starting up, you will hear a beep; the default
output to the monitor is the multi-window mode.
Note:
If the circumstance occurs when the power is abnormal or has been cut,
please switch off the device. When you switch the power back on the DVR will
automatically recover its previous state before it had been shut down.
6.
Turn off
There are two methods to turn off the DVR, either the soft switch or the hard switch.
-
Soft switch:
Entering [Main menu] and choosing [Logout] in the [turn
off the system] option.
-
Hard switch:
Pressing the power supply switch.
