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http://support.esri.com/index.cfm?fa...leShow&d=28731

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كود:
Bug:  USB connection does not link a GPS unit to ArcGIS
Article ID: 28731 
Bug Id: CQ00210660 
Software:  ArcGIS - ArcEditor 9.0, 9.1 ArcGIS - ArcInfo 9.0, 9.1 ArcGIS - ArcView 9.0, 9.1 
Platforms: N/A 

Description
ArcGIS supports only serial port connections of GPS equipment.


Cause
This is a known limitation.


Workaround
Some manufacturers include an additional driver that will make their USB GPS device appear to other software as if it is connected to an RS-232 serial port. This will enable ArcGIS to function with the device, assuming it is using the NMEA protocol. Contact the GPS manufacturer to determine if your GPS unit has a driver that does this. 


Do a general search on the internet for 'USB Serial port emulator'. There are a number of manufacturers of emulators that work. Another option is to purchase a USB serial cable. Make sure it includes a driver that makes the USB emulate RS-232. 

If the GPS device itself supports only the USB and not the RS-232 serial, the GPS device manufacturer usually provides a driver that does the same thing as a USB-to-serial adapter. 





Created: 3/4/2005
Last Modified: 8/15/2005



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