Answers Database
Cable - Is it possible to use an extension on the Xilinx cables?
Record #7313
Product Family: Hardware
Product Line: Other
Product Part: Parallel Download Cable
Problem Title:
Cable - Is it possible to use an extension on the Xilinx cables?
Problem Description:
Urgency: Standard
General Description:
Is it possible to put a cable extension on the Xilinx XChecker or Parallel cables?
Solution 1:
The length that a cable can be extended depends solely on the port (Parallel, Serial, USB).
In brief, extending the cable may cause data corruption due to attenuation
of the signals and should be avoided.
Solution 2:
For a serial port:
An extra 5 feet should be ok. The RS-232C standard allows cable lengths up
to 15 meters. The RS-423 and RS-422 allow up to 700 meters and 1300 meters
respectively however are not as wide spread in computers. Make
sure to use a good extension cable that is firmly connected and away from possible
noise sources.
Parallel cable
You cannot use an extension. You cannot extend the cable
because the parallel port drivers are not strong enough. The signals will
attenuate, the data will become corrupted. Note: Make sure that your
parallel cable is not running through a dongle. There have been cases
where removing the dongle resolved programming issues.
End of Record #7313 - Last Modified: 12/10/99 08:53 |
