
-14-
Note: For RS-485 communication, terminating registers on both sides of the line
should be on. When the line is connected by multi-point connection, turn on
only the terminating registers of the devices on both end of the line. For RS-422
communication, turn on only the terminating register of differential receiver (R+
and R- ). When multiple receivers are connected with a driver by daisy chain, turn
on only the terminating register of the farthest receiver. The terminating registers
prevent the signal reflection of long-distance transmission and enhance noise
immunity of the line.
3-4 .Cable Connection
■ USB
Confirm the USB port you connected when installing the attached driver, and connect
the converter to the port with attached USB cable or USB cable compliant with USB
standard. (Refer to “Chapter 2”)
The driver for this converter is needed for each USB port with which you connect the
converter for the first time. Please do not connect to the different USB port.
Please do not connect to a USB hub, which only uses bus power, and do not have any
other power supply. It may cause the insufficient of power and LINEEYE cannot have
operation guarantee.
■ RS-422/485
After confirming the RS-422/485 specification (signal definition, inverse signal/non-
inverse signal, I/O and so on) of the target device, connect to the device by using proper
cable.
An example of 1:1 full duplex mode connection with RS-422 device (LINEEYE SI-
20FA).