
ULI-227TL - RS-232 (DB9 Male) to 20 mA Current Loop (TB) Converter RS-232 to digital 20 mA Current Loop with Isolation. Each current loop may be operated active or passive. Baud rates up to 19.2 kbps. Transmit (T+ and T-) loop and Receive (R- and R-) loop. Port-power or external power supply (not included, sold separately).