Difference between revisions of "URI Loopback"

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[[Category:URI]]
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#REDIRECT [[URI]]
URI Test (Loopback) connector
 
 
 
25 pin male D-shell connector
 
 
 
Pin 1 to Pin 7
 
 
 
Pin 2 to Pin 3
 
 
 
Pin 4 to Pin 8
 
 
 
Pin 11 to Pin 24
 
 
 
Pin 14 to EEProm Pin 8
 
 
 
Pin 15 to EEProm Pin 1
 
 
 
Pin 16 to EEProm Pin 2
 
 
 
Pin 17 to EEProm Pin 3
 
 
 
Pin 18 to EEProm Pin 4
 
 
 
Pin 19 to EEprom Pin 5
 
 
 
10K Resistor between Pins 21 & 22
 
 
 
10K Resistor between Pins 21 & 23
 
 
 
For URIx P/N 9095 that uses the CM119A also include the following:
 
 
 
Pin 5 to Pin 10
 
 
 
Pin 6 to Pin 11
 
 
 
Do *NOT* include these connections for the older URI P/N 9080 that uses the CM108.
 
 
 
Remove EEprom pins 6 and 7 (not used).
 
 
 
Use an ATMEL AT93C46E-PU (Digikey Part Number AT93C46E-PU-ND)
 
 
 
or equiv. for the EEProm.
 
 
 
To accomplish this, pins 1 thru 4 of the the 8 pin DIP EEProm are soldered
 
 
 
directly to pins 15 thru 18 (1 to 15, 2 to 16, 3 to 17, 4 to 18) of the
 
 
 
25 pin D-shell connector. Pin 14 is wired to pin 8 (Vcc) and pin 19 is
 
 
 
wired to pin 5 (Gnd) of the EEProm. Pins 6 and 7 of the EEProm are not
 
 
 
used and may be removed.
 

Latest revision as of 05:11, 15 November 2020

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