321 Studios GHDX2-2430S-24F4D manual Null Modem

Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual

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.

C-6 Pinouts