- serial RS-232
- serial RS-422
- serial RS-485
- 25 pin D-Sub (DB-25) / 25 pin D-Sub (DB-25)
- up to 14.5 km
If you want a modular, inexpensive, compact, and powerful solution to connectivity problems, look no further. The Async RS-232 Interface Converters are designed to plug directly into the RS-232 serial ports of PCs and other devices, effectively turning those ports into RS-422, RS-485, or RS-530 ports. They don't require AC power or batteries; they operate using just the small voltage present on the RS-232 data and control leads. The Converters come in a variety of models with a variety of RS-232 and non-RS-232 connectors.