Digital Video Recorder
7
Connecting to the RS485 Port
Figure 12 — RS485 connector.
The DVR can be controlled remotely by an external device or control system, such as a control
keyboard, using RS485 half-duplex serial communications signals. The RS485 connector can
also be used to control PTZ (pan, tilt, zoom) cameras. Connect
RX-/TX-
and
RX+/ TX+
of the
control system to the
−
and
+
(respectively) of the DVR. See
Chapter 3 — Configuration
and
the PTZ camera or remote controller manufacture’s manual for configuring the RS485
connection.
Connecting to the USB Ports
Figure 13 — Front USB connectors.
Figure 14 — Rear USB connector.
Three USB ports are provided to connect external hard disk, CD-RW or flash drives for video
clip copying or system upgrades. One USB port is on the rear panel and the other two are on the
front panel. Position external drives close enough to the DVR so that you can make the cable
connections, usually less than 6 feet. Use the USB cable provided with the hard disk drive to
connect it to the DVR.
A USB mouse (not supplied) can be connected to one of the ports. You can use the mouse to
navigate through the screens and menus much like you would on a computer.
A PostScript™ USB printer (not supplied) can be connected to one of the ports. You can print
selected images resulting from a search.
Refer to Chapter 4 — Operation, Searching Video.
A USB to Serial converter can be connected to the USB port. Multiple text-in devices can be
used with a USB to Serial converter.
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