TB840A 3BSE037760R1 Overview

The ABB Modulebus Cluster Modem TB840A 3BSE037760R1 is a fiber optic ModuleBus modem designed for redundant configurations, providing optical-electrical bus conversion and supporting up to seven I/O clusters.

Specifications

Article Number: 3BSE037760R1.

Function: Fiber optic ModuleBus modem for redundancy.

Interfaces: Two optical ports and one electrical ModuleBus interface.

Capacity: Supports up to 7 I/O clusters on the optical bus.

Redundancy: Features line and module redundancy, and supports hot swap.

Compliance: Functions as a slave device on the ModuleBus protocol.

FAQ

Q1: What is the primary function of the TB840A?

A1: It is a fiber optic ModuleBus modem designed for use in redundancy configurations.

Q2: How does it connect to the system?

A2: It has two fiber optic ports for the Optical ModuleBus and one electrical ModuleBus interface for I/O modules.

Q3: What is its key feature for system reliability?

A3: It supports both line redundancy and module redundancy to ensure high availability.

Q4: How many I/O clusters can it support?

A4: It can connect up to seven I/O clusters via the fiber optic ModuleBus.

Q5: Can it be replaced without shutting down the system?

A5: Yes, it supports hot swap functionality for maintenance without system downtime.