ABB TB820 ModuleBus Optical Modem

Description

The ABB TB820 ModuleBus Optical Modem (model variants include TB820V2 3BSE013208R0001) is a modular bus modem belonging to the ABB Advant series, designed exclusively for industrial automation applications. It serves dual functions: acting as a ModuleBus optical modem to connect multiple subnets into a larger integrated network, and operating as a digital input module. Equipped with both fiber and electrical interfaces, it supports RS485 and RS232 communication protocols with a maximum baud rate of 115.2 kbps, enabling reliable long-distance communication for widely distributed devices. Key expansion capabilities include support for up to 12 I/O modules and 7 clusters, making it ideal for local distribution scenarios requiring expanded I/O module counts. Technical specifications include dimensions of 65 x 55 x 30 millimeters, a weight of 60 grams, an operating temperature range of -25 degrees Celsius to +55 degrees Celsius, and a storage temperature range of -40 degrees Celsius to +70 degrees Celsius, with an IP20 protection rating. Its modular design allows for easy configuration and function expansion, and it delivers high reliability to ensure stable operation in harsh industrial environments.