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USB-2COMi-M Dual Port RS-422/485 Serial Adapter User Manual
The USB-2COMi-M USB Industrial I/O Adapter is designed to make
industrial communication port expansion quick and simple.
Connecting to a USB port on your computer or USB hub, the USB
Industrial I/O Adapter instantly adds industrial communication port to
your system. By taking advantage of the USB bus, the USB Industrial
I/O Adapter makes it easier than ever to add RS-422 or RS-485 device
to your system with easy plug-and-play and hot plug features.
Adapting the new technology, the industrial I/O communication port
expansion now takes the new bus with easy and convenient
connectivity.
Plugging the USB Industrial I/O 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 is compatible with Windows serial communication applications.
The USB Industrial I/O Adapter provides instant connectivity to RS-422/485 communication device for factory
automation equipment, multi-drop data collection devices, barcode readers, time clocks, scales, data entry terminals,
PC to PC long distance communications and serial communication in harsh environments. The USB Industrial I/O
provides industrial solution for applications requiring single node or multi-drop communications over short and long
distance.
Features and Specifications
Adds dual high speed RS-422 / 485 ports via USB connection
•
384 byte receive buffer
•
128 byte transmit buffer for high speed data throughput
•
Requires no IRQ, DMA, I/O port
•
Data rates: 300 bps to 1M bps
•
Serial Connector: Two DB-9 male connectors and two 5-pin terminal blocks.
•
Auto transmit buffer control for 2-wire RS-485 half-duplex operation
•
Termination and Bias resistors installed on-board.
•
RS-422 data signals: TX-, TX+, RX+, RX-, GND, RTS-, RTS+, CTS+, CTS-
•
RS-485 data signals: TX-, TX+, RX+, RX-(4 wire), and data-, data+(2 wire).
•
Monitor LEDs of TxD, RxD indicating port status
•
Virtual COM port drivers available for Windows 7, Vista, 2003, XP, 2000..
•
Power Supply
The USB-2COMi-M and USB-2COMi-SI-M are powered by USB ports. They must work in USB self power mode that
supplies power of 5V/500mA. This is generally available from the USB host port of Desktop computer.
Sales@coolgear.com
www.CoolGear.com
USB-2COMi-M
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Summary of Contents for CoolGear USB-2COMi-M
- Page 1 Virtual COM port drivers available for Windows 7, Vista, 2003, XP, 2000.. • Power Supply The USB-2COMi-M and USB-2COMi-SI-M are powered by USB ports. They must work in USB self power mode that supplies power of 5V/500mA. This is generally available from the USB host port of Desktop computer. Sales@coolgear.com...
- Page 2 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. Sales@coolgear.com www.CoolGear.com...
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Page 3: Check Installation
Click the drop down arrow on COM Port Number and scroll to the required COM port. Select "OK". • Return to the Device Manager Screen. You will see that the USB Serial Port installation has been changed to the new COM Port Number. Sales@coolgear.com www.CoolGear.com... - Page 4 4. When following dialog box appears, double click “Clean System” to uninstall the 2003/XP/2000 drivers. 5. You need to disconnect all USB to serial Adapters from your PC, when the message below appears. Double click “OK” to start uninstalling Windows 2003/XP/2000 USB to Serial drivers. 6. Double click “Yes” to confirm it. Sales@coolgear.com www.CoolGear.com...
- Page 5 7. Click “No” to proceed. 8. When the message “Status: System clean completed” appears, double click “Exit” to complete the USB to serial drivers uninstall. 9. Press “Start” button and select “Control Panel”. 10. Open the Add or Remove program. Sales@coolgear.com www.CoolGear.com...
- Page 6 1. The USB to serial devices must connect to the PC. 2. Press “Start” button and select “Control Panel”. 3. Select “Classic View” from the top left hand corner and then “System” from the list. 4. Select “Device Manager” from the top left hand corner. Sales@coolgear.com www.CoolGear.com...
- Page 7 Note: if you have more than one USB Serial Port (COMx) installed in your PC, you need to repeat from step 5 to step 6 to delete the driver software for each port. 7. Locate your Device under the Universal Serial Bus Controllers section, and right click on it to bring up the menu shown. Sales@coolgear.com www.CoolGear.com...
- Page 8 8. Select uninstall and be sure to click the box for “Delete the driver software for this device” in the next window and press “OK”. Note: if you have more than one USB Serial Converter installed in your PC, you need to repeat step 7 and step 8 to delete the driver software for all devices. Sales@coolgear.com www.CoolGear.com...
- Page 9 TxD+ (B) Pin 3 RxD+ (B) Pin 4 RxD- (A) Pin 5 RS-422 Signal Wiring • Point-to-Point 4 Wire Full Duplex USB-2COMi-M RS-422 Device 2 TxD+ (B) RxD+ (B) 1 TxD- (A) RxD- (A) 3 RxD+ (B) TxD+ (B) 4 RxD- (A) TxD- (A) •...
- Page 10 RS-485 2-Wire (Half Duplex) Signal Pin-outs of Terminal Block (TB1, TB2) Pin 1 Data- (A) Pin 2 Data+ (B) Pin 5 RS-485 Signal Wiring • Point-to-Point 4 Wire Full Duplex USB-2COMi-M RS-485 Device 2 Tx+ (B) Rx+ (B) 1 Tx- (A) Rx- (A) 3 Rx+ (B) Tx+ (B)
- Page 11 • Multi-drop RS-485 2-Wire Half-duplex Sales@coolgear.com www.CoolGear.com...
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