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This jumper should be populated for pull-up Rx+
11-12
Pull-down Rx- to GND by 750 Ohm Bias resistor.
This jumper should be populated for pull-down Rx- .
13-14
CTS Termination of 120 Ohm.
This jumper should always be populated for RS-422 mode.
Note:
Sometimes, when operating in RS-422 or RS-485, it is necessary to configure termination and biasing of the data
transmission lines. Generally this must be done in the cabling, since this depends on the installation of connections.
Before applying the option, check your cable specification for proper impedance matching.
Windows 7 / Vista / 2003 / XP / 2000 Driver Installation
You need to have administrator privileges to install any new drivers under Windows 7/ Vista / 2003 / XP / 2000. To
install the driver or update the configuration please log onto Windows as "Administrator" or ask your system
administrator to install the USB-COM driver.
You need to install driver first, prior to hardware installation. Do not connect the USB-to-Serial Adapter to the
USB port of your computer, before you finish driver installation.
Please proceed with the following steps to install the driver:
1.
Insert the “USB COM Series Driver and Utility” CD into your CD-ROM.
2.
The “USB COM Series Driver and Utility CD” dialog box appears.
3.
Under “Driver Installation”, double click “Windows 7, Vista, 2003, XP, 2000 driver” to install the
device driver.
4.
The USB COM install program will auto-detect the OS type and install the driver automatically.
(Note: in Windows 7 or Vista OS you will find another dialog box, please click on “OK” to confirm
the drivers install program).
5.
After the message “FTDI CDM Driver installation process completed” appears, press “Enter” to complete the
driver installation.
6.
Plug in the USB to Serial Adapter to the USB port of your computer. Windows will finish installing the driver files.
