BL21x Series Distributed I/O system is designed for scalable and efficient field-level signal acquisition and control. Each system includes a coupler that supports up to 32 I/O modules, providing high-density I/O expansion for distributed applications. Key features include:
Pluggable terminal blocks on each I/O module for quick and easy wiring
A built-in RS485 interface on the coupler for seamless field communication
Modular design for fast installation and flexible system configuration
The BL21x Series is ideal for industrial automation, remote data collection, and modular control architectures that require reliable and scalable I/O distribution.