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Installation Guide of Hi-Speed
USB to Industrial Single RS-422/485 Adapter
Introduction of USB-COMi and USB-COMi-SI
The USB-COMi and USB-COMi-SI Industrial Single RS-422/485 Adapters are
designed to make serial port expansion quick and simple. Connecting to a USB port
on your computer or USB hub, the USB Serial Adapter instantly adds one industrial
RS-422/485 multi-electrical interface serial communication port to your system. By
taking advantage of the USB bus, the USB Serial Adapter makes it easier than ever
to add one RS-422/485 port and serial devices to your system with easy plug and
play and hot plug features. Adapting the new technology, the serial port expansion
now takes the new bus with easy and convenient connectivity.
Plugging the USB-COMi or USB-COMi-SI USB to Industrial Single Serial Adapter to
the USB port, the adapter is automatically detected and installed. There are no IRQ
& COM port conflicts, since the port doesn't require any additional IRQ, DMA,
memory as resources on the system. The RS-422/485 port functions as native
Windows COM port, and it is compatible with Windows serial communication
applications. The adapter is designed with external switches to set RS-422 or
RS-485 ports and different operation modes conveniently.
The USB Serial Adapter provides instant connectivity to RS-422/485 communication
devices for factory automation equipment, multi-drop data collection devices,
barcode readers, time clocks, scales, data entry terminals, ATMs and serial
communication in harsh environment. The USB to Serial Adapter is suitable for
remote access, retail and industrial application, data collection and other
applications requiring high speed RS-422/485 communication ports.
Optical Isolation & Surge Protection (USB-COMi-SI)
Optical isolation and surge protection are available to USB-COMi-SI.
The output port Of USB-COMi-SI is optically isolated with 2000 Volt DC optical
isolation. The optical isolation protects your PC or notebook from spikes and
surges on the RS-422/485 network, by converting the electrical pulse into an optical
signal and then changing it back into an electrical pulse. Your computer is well
protected, since the surges and spikes cannot cross the optical link. Each
RS-422/485 port is individually protected by surge protector to withstand
electrostatic discharge and power surges up to 25KV ESD. Surge suppression on all
signals prevent from damages caused by lightning or high voltage. USB-COMi-SI,
with galvanic isolated RS-422/485 port, provides extended electrical safety in
industrial application.
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USB-COMi & USB-COMi-SI USB to RS-422/485 Adapters User's Manual
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Table of Contents
Summary of Contents for Titan USB-COMi
- Page 1 Optical Isolation & Surge Protection (USB-COMi-SI) Optical isolation and surge protection are available to USB-COMi-SI. The output port Of USB-COMi-SI is optically isolated with 2000 Volt DC optical isolation. The optical isolation protects your PC or notebook from spikes and surges on the RS-422/485 network, by converting the electrical pulse into an optical signal and then changing it back into an electrical pulse.
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Page 2: Specifications And Features
RS-485 data signals : TX-, TX+, RX+, RX-(4 wire),and data-, data+(2 wire) Monitor LEDs of TxD, RxD indicating port status No external power adapter required Virtual COM port drivers available for Windows 7, Vista, 2003, XP, 2000 USB-COMi & USB-COMi-SI USB to RS-422/485 Adapters User’s Manual... -
Page 3: Hardware Installation
4 wire with Handshaking ON ON ON Full Duplex (4 wire) ON ON RS-485 Half Duplex (2 wire) - with Echo OFF OFF Half Duplex (2 wire) - without Echo OFF OFF OFF USB-COMi & USB-COMi-SI USB to RS-422/485 Adapters User’s Manual... - Page 4 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. USB-COMi & USB-COMi-SI USB to RS-422/485 Adapters User’s Manual...
- Page 5 7 x 3 header block to enable Termination and BIAS resistors USB-COMi & USB-COMi-SI USB to RS-422/485 Adapters User’s Manual...
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Page 6: Check Installation
Device Manager of the System Properties screen. (Go there by Start-Setting- Control Panel-System Properties-Hardware-Device Manager. The device should have installed as a "USB Serial Port (COMx)" attached to "USB Serial Converter ". USB-COMi & USB-COMi-SI USB to RS-422/485 Adapters User’s Manual... -
Page 7: Change Com Port Properties & Com Port Number
When following dialog box appears, double click “Clean System” to uninstall the 2003/XP/2000 drivers. 5. You need to disconnect all USB-COMi or USB-COMi-SI from your PC, when the message below appears. Double click “OK” to start uninstalling Windows 2003/XP/2000 USB to Serial drivers. - Page 8 6. Double click “Yes” to confirm it. 7. Click “ ” to proceed. 8. When the message “Status: System clean completed” appears, double click “Exit” to complete the USB to serial drivers uninstall. USB-COMi & USB-COMi-SI USB to RS-422/485 Adapters User’s Manual...
- Page 9 13. Remove the second “Windows Driver Package – FTDI CDM Driver Package (…)”. 14. Click “Chang/Remove” and “Yes” to remove the second Windows Driver Package. 15. Reboot the computer to complete the driver uninstall. USB-COMi & USB-COMi-SI USB to RS-422/485 Adapters User’s Manual...
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Page 10: Uninstalling Windows 7 Or Vista Drivers
4. Select “Device Manager” from the top left hand corner. 5. Locate your Device under the Ports (COM & LTP) section and right click on it to bring up the menu shown. USB-COMi & USB-COMi-SI USB to RS-422/485 Adapters User’s Manual... - Page 11 “OK”. Note: if you have more than one USB-COMi or USB-COMi-SI installed in your PC, you need to repeat from step 5 to step 6 to delete the driver software for each port.
- Page 12 “OK”. Note: if you have more than one USB-COMi or USB-COMi-SI Converter installed in your PC, you need to repeat step 7 and step 8 to delete the driver software for all devices.
- Page 13 RS-422 with Handshaking USB-COMi(-SI) RS-422 Device RxD+ (B) TxD+(B) TxD- (A) RxD- (A) RxD+ (B) TxD+(B) RxD- (A) TxD- (A) RTS+(B) CTS+(B) CTS- (A) RTS- (A) CTS+(B) RTS+(B) CTS- (A) RTS- (A) USB-COMi & USB-COMi-SI USB to RS-422/485 Adapters User’s Manual...
- Page 14 RS-485 Device Data+(B) Data+(B ) Data- (A) Data- (A) RS-485 Device x Data+(B) Data- (A) All brand names and trademarks are the property of their respective owners. Manual Part No. M062 USB-COMi & USB-COMi-SI USB to RS-422/485 Adapters User’s Manual...