User`s manual

DVR Configurations
99
7
7.2 Receiving Card Numbers on GV-System
For GV-System to receive card numbers from the camera reader and overlay the data on live
view, a physical connection between GV-System and the camera reader is required. Live
view, on the other hand, is sent from the camera reader to GV-System through network
connection.
Camera Reader
RS-485 +
RS-485 -
GV-HUB / GV-COM /
GV-NET/IO Card V3.1
USB / RS-232
(Sends card numbers)
GV-System
Network (Sends live view)
Figure 7-7
7.2.1 Defining ID Numbers for Multiple Camera Readers
When multiple camera readers are physically connected to GV-System, you will need to
define an ID number for each camera reader. The ID number is used for mapping the card
numbers to the correct live view channel. You will first need to connect the camera reader to
a computer through GV-COM, GV-Hub or GV-NET/IO Card V3.1 in order to define an ID
number.
Connecting the camera reader to a computer
To connect the camera reader to a computer, connect the camera reader to GV-COM, GV-
Hub or GV-NET/IO Card V3.1 through RS-485 connection. Next, use an RJ-11 to USB cable
or RS-232 to connect the GV-COM, GV-Hub or GV-NET/IO Card V3.1 to the USB port of the
computer.