Rorke Data Galaxy HDX2 GHDX2-2430S-24F4D - Manual (Page 128)

Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual
C-6 Pinouts
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 C -4 : COM2 Adapter Cable CN1 and CN2 Pinout Definitions
C.5. Null Modem
A null modem is used for wire-swap and is necessary for connecting COM1
CN2 to a PC serial port.