There are two typical RS232 cables used in the industrial.
- Crossed RS232 cable (or known as null modem cable)
- Straight RS232 cable
Cross Cable RS232 wiring
Cross cable wiring for RS232 usually happens between two DCE (data communication equipment) devices, or two DTE (Data Terminal Equipment) devices.
*** Click here for RS232 connector pin out (male/female).
Straight Cable RS232 wiring
