Omnitron Systems Technology RS-232 사용자 설명서

1. With the reader plugged in, go to START/CONTROL PANEL/SYSTEM/

HARDWARE/DEVICE MANAGER/PORTS (COM & LPT) and/or UNI-

VERSAL SERIAL BUS CONTROLLERS (as appropriate).

2. Locate any items like “Unknown USB Device” or “(ID TECH) USB Serial 

Converter” or “(ID TECH)USB Serial Port” that are marked with a yellow “!” 

These need to be updated. 

3. Right-click on the item and select PROPERTIES/DRIVER and click UP-

DATE DRIVER. 

4. The HARDWARE UPDATE WIZARD window will open. Select “Install 

from a list or specific location.” Click NEXT. 

5. The host should display another window: “Please choose your search and 

installation options.” Select “Don’t search, I will choose the driver to install” 

and click NEXT. You will be asked to select the hardware type. Select “Show 

all devices” and click NEXT.

7. You will be asked to “select the device driver you want to install for this 

hardware.” Select HAVE DISK and then click NEXT. 

 

8. The INSTALL FROM DISK window will appear. Click BROWSE. 

9. The LOCATE FILE window will appear. Find C:\ID TECH USB Serial 

Driver V3.0. Select FTDIBUS.INF or FTDIPORT.INF (as appropriate) and 

click OPEN.

10. Click OK on the next window. You will notice a warning that the driver is 

not digitally signed. Click NEXT. A Windows XP warning will appear: “This 

driver is not digitally signed.” Click CONTINUE ANYWAY.  

11. The wizard will update the driver. When finished, the message “The wiz-

ard has finished installing... “ will appear. 

12. Click FINISH.

13. Repeat the above steps if both drivers must be updated.

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