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2.3.6 RS-485 Port
The RS-485 port, located on the rear panel of the NVR, can be used to connect to an RS-485
keyboard, such as EverFocus' EKB500, for controlling NVR and HD PTZ cameras. For details on
the RS-485 configurations on the NVR, please refer to 6.8.5 I/O Control. The RS-485 pin
assignment is as follows:
+ -
G
Figure 2-14
2.3.7 RS-232 Port
The RS-232 port, located on the rear panel of the NVR, can be used to connect to an RS-232
data input device such as POS system. The RS-232 port of the NVR is a 9 pin D-Sub socket. For
details on the RS-232 configurations on the NVR, please refer to 6.8.5 I/O Control.
Figure 2-15
2.4 Turning On / Off the Power
Before powering on the NVR, please make sure the internal HDDs have been installed properly.
When you have completed the basic cable connections, you are ready to turn on the NVR.
Once connect the supplied Power Cord to the power outlet, the NVR will be powered on. All of
the LED indicators on the front panel will light up for a second, but the Power and REC LED will
remain light up. After hearing 1 beeps from the NVR, you can start operating. To turn off the
power, simply unplug the Power Cord from the power outlet. You can also press the Power
button on the rear panel to turn on and off the NVR without unplugging the Power Cord.
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ENVR8304D-8CH
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