APC BackUPS XS1000, BX-1000 and some others cable wiring

connector or cable wiring APC part# 940-0128D

9 pin D-SUB female connector to the computer

10 pin RJ50 (10P10C) male connector to the UPS

940-0128D is functionally similar to the 940-0128A cable except for NC on (6) DTR and (2) RD on the computer side.

          RI(9)<---+ 
                   | 
         CTS(8)<---+--- E   2N2222(NPN) 
                         \|___ 
                    ____ /| B | 
                   |    C     | 
                   |          | 
                   +---vvvv---+--[>|------<(2)OnBatt 
         RTS(7)>---|    2k      1N5819 
                   +---vvvv---+--[>|------<(3)LowBatt 
                   |          | 
                   +--- C     | 
                         \|___| 
                         /| B 
         DCD(1)<------- E    2N2222(NPN) 
          
         DTR(4)>-------------------------->(8)KillPwr 
          
         GND(5)----------------------------(7)Signal GND 
         (Shield)--------------------------(4)Chassis GND 

Notes

References

Category:Miscellaneous Cables