A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale
Introduction
The ABB TB811 Modulebus Optical Port is a communication infrastructure component engineered to support reliable, long-distance modulebus connectivity using optical transmission. Unlike compact point interfaces, the TB811 is intended for structured cabinet layouts and extended system architectures where communication stability, electrical isolation, and scalability are design priorities.
From a system architecture standpoint, the TB811 functions as a backbone element rather than a simple adapter. It enables deterministic data exchange across distributed I/O segments while protecting sensitive control electronics from electrical noise, grounding issues, and potential interference introduced by large industrial installations.
Technical Specifications
| Parameter | Description |
|---|---|
| Product Type | Modulebus Optical Port |
| Model | TB811 (3BSE008568R1) |
| Function | Optical transmission interface for modulebus communication |
| Mechanical Dimensions | 75 × 250 × 45 mm (H × W × D) |
| Weight | 0.04 kg |
| Mounting | Control cabinet or modulebus backplane |
| Communication Medium | Optical fiber |
| Electrical Isolation | Full galvanic isolation via optical link |
| System Compatibility | ABB modular control and distributed I/O platforms |
