Product specifications

Appendix D: Pin Outs
D.3 DB9 Audio Jack UPS Cable Pin Outs
Use this cable to connect the COM2 serial port to UPS.
PN: IFT-9270CUPSCab
Figure E- 2: RS-232C (Audio Jack) Pin Outs
CN1 Pin Number Pin Name
1 Ground
2 TXD
3 RXD
CN2 Pin Number Pin Name
1 TXD
2 RXD
3 NA
4 NA
5 NA
6 NA
7 NA
8 NA
9 Ground
Table E-3: RS-232C (Audio Jack) Pin Out Definitions
D.4 Null Modem
PN: IFT-9211
Swap pin 2 and pin 3
Swap pin 4 and pin 6
Swap pin 7 and pin 8
Table E-4: Null Modem Pin Outs
DB9 Audio Jack UPS Cable Pin Outs D-3