APC BackUPS dumb cable (on-battery only)

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connector or cable wiring APC Part# - 940-0023A

9 pin D-SUB female connector layout 9 pin D-SUB female connector to the computer

This cable can only be used on voltage-signalling UPSes, and apparently only provides the On Battery signal. As a consequence, this cable is pretty much useless, because all APC UPSes support more than just On Battery.

     Signal Computer                  UPS             DB9F                     DB9M       DCD    1   --------------------  2  On Battery                          3.3K ohm       TxD    3   --[####]-*                           |       DTR    4   ---------*       GND    5   ---------------*----  4  Ground                                 |                                 *----  9  Common                                

9 pin D-SUB male connector diagram

9 pin D-SUB male connector to the UPS

Notes

References

Category:Miscellaneous Cables

 

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