Find your pinout in our database ...
 




APC BackUPS Office (old) Cable Pinout -
Pin Signal Description
1 4 and 6 DSR DTR, Shutdown when set by computer for 1-5 seconds
2 8 and 9 RI CTS, On battery power
3 1 and 2 CD RxD, Low battery
4 5 Ground
5 7 RTS, Begin signalling on other pins
6

9 pin D-SUB male connector layout 9 pin D-SUB female connector diagram