Product Type: Module Bus Modem Product ID: TB820 Brand: ABB Weight: 0.2kg Dimensions (H X W X D): 119x96x54mm Redundant Operation: Supports 1 + 1 Redundancy Scope of Application: Industrial Automation Control System ABBTB820 Optical Cluster Modem is a high-performance modem designed for industrial automation environments Communication equipment. It adopts advanced module bus technology, which can realize efficient data transmission and stable communication connection.The product supports 1 + 1 redundant operation and can automatically switch to the backup link when the main communication link fails, thus ensuring the continuity and reliability of the system. The compact design of the TB820 modem measures just 119x96x54mm and weighs just 0.2k G, making it easy to install in a variety of industrial environments.Its rugged housing design is suitable for harsh working conditions and ensures long-term stable operation. In addition, the TB820 provides easy maintenance features that make routine maintenance easier. With precise parameter settings and efficient communication capabilities, the ABBTB820 optical trunking modem is ideal for many industrial automation projects.