Black Box CL1090A-F RS-232 to Current Loop Converter

Preserve critical serial connectivity without replacing working equipment. The Black Box CL1090A-F converts RS-232 signaling to current loop, giving you a practical path for integrating legacy devices into modern or mixed serial environments. Built around a DB25 female interface on one side and a terminal block on the other, this converter is suited for installations where fixed wiring and stable serial transport are more important than consumer-grade convenience. It helps extend the life of equipment that still depends on current loop communication, including industrial controllers, telecom gear, and specialized instrumentation. For teams maintaining older infrastructure, the value is straightforward: reduce replacement cost, avoid unnecessary protocol migration, and keep proven devices operational. In environments where serial compatibility is still a requirement, a dedicated converter like this can be the difference between a clean integration and a costly rip-and-replace project. Choose it when the job calls for a simple, purpose-built interface between RS-232 and current loop systems.