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The series DVR also support NKB operation. You can operate the DVR from the
keyboard controls instead of using the control pad on the front panel of the unit.
To connect a NKB keyboard to the DVR:
1. Assemble the KBD keyboard according to the instructions in its accompanying
installation manual.
2. Connect the KBD keyboard into one of the RS232 ports on the DVR or through
network.
3.9
RS485
When the DVR receives a camera control command, it transmits that command up
the coaxial cable to the PTZ device. RS485 is a single-direction protocol; the PTZ
device can
’
t return any data to the unit. To enable the operation, connect the PTZ
device to the RS485(A,B) input on the DVR. Since RS485 is disabled by default for
each camera, you must enable the PTZ settings first. This series DVRs support
multiple protocols such as Pelco-D, Pelco-P.
To connect PTZ devices to the DVR:
1. Connect RS485 A,B on the DVR rear panel.
2. Connect the other end of the cable to the proper pins in the connector on the
camera.
3. Follow the instructions for configuring a camera to enable each PTZ device on the
DVR.
3.10
Other Interfaces
There are still other interfaces on the DVR, such as USB ports. You can refer to
the Figure 3-11 for more information.
Figure 3-11
