
Product Overview
The Yokogawa NFSBT02 is an SB Bus T-Connector with Built-In Terminator designed for Yokogawa distributed control systems (DCS). It is used to connect SB Bus communication cables while providing integrated bus termination to maintain signal integrity and ensure reliable communication across the automation network.
The NFSBT02 simplifies SB Bus wiring by combining a T-connector and termination resistor into a single compact unit. It is particularly suitable for system expansion, branch connections, and end-of-line bus termination in Yokogawa control architectures.
Technical Specifications
| Parameter |
Specification |
| Manufacturer |
Yokogawa |
| Model |
NFSBT02 |
| Product Type |
SB Bus T-Connector with Built-In Terminator |
| Function |
SB Bus connection and termination |
| Communication Type |
SB Bus Network |
| Connector Type |
T-Connector |
| Termination |
Integrated bus terminator |
| Application |
SB Bus signal distribution and end-of-line termination |
| Mounting Method |
Direct cable connection |
| System Compatibility |
Yokogawa Distributed Control System (DCS) |
| Protection Rating |
Industrial indoor installation |
| Dimensions |
100 × 35 × 25 mm |
| Weight |
0.3 kg |
Function and Working Principle
The NFSBT02 connects SB Bus communication cables while incorporating a built-in termination resistor that minimizes signal reflections and maintains communication quality.
Installed at the appropriate point in the bus topology, it ensures that communication signals are properly terminated, contributing to stable and reliable data transmission throughout the automation network.
Operating Sequence
- SB Bus communication cables are connected through the T-connector.
- Communication signals pass through the connector to connected devices.
- The integrated terminator absorbs reflected signals at the end of the bus.
- Signal integrity is maintained across the communication network.
- Stable communication is ensured between controllers and remote modules.
Key Features
- Integrated SB Bus T-connector and terminator
- Simplifies communication network wiring
- Reduces signal reflection and communication errors
- Supports stable SB Bus data transmission
- Compact industrial design
- Easy installation and replacement
- Reliable operation in industrial environments
- Optimized for Yokogawa automation systems
System Role
The NFSBT02 serves as a bus connection and termination component, ensuring proper signal transmission and network stability within Yokogawa SB Bus communication systems.
Typical System Architecture
Controller → SB Bus Cable → NFSBT02 T-Connector with Terminator → Remote I/O Modules → Field Devices
Industrial Applications
The NFSBT02 is commonly used in:
- Oil and gas facilities
- Chemical and petrochemical plants
- Power generation stations
- Water and wastewater treatment
- Manufacturing automation
- Pulp and paper mills
- Pharmaceutical production
- Food and beverage processing
- Distributed industrial control systems
- Industrial communication networks
Installation Guidelines
- Install at the designated location within the SB Bus network.
- Use the built-in terminator only where bus termination is required.
- Ensure secure cable connections before energizing the system.
- Follow Yokogawa SB Bus wiring topology recommendations.
- Inspect connectors periodically for secure connections.
- Verify communication quality during system commissioning.
Compatible Components
The NFSBT02 is compatible with:
- Yokogawa SB Bus communication systems
- Yokogawa Controller Base Units
- Yokogawa CPU Modules
- Yokogawa Remote I/O Modules
- Yokogawa Bus Repeat Modules
- Yokogawa Communication Modules
- Yokogawa Distributed Control Systems
- Yokogawa Automation Networks
Alternative Models
| Model |
Description |
| NFSBT01 |
SB Bus T-Connector |
| NFSB100 |
Bus Repeat Module |
| NFLR121 |
Serial Communication Module |
| NFCP501 |
Autonomous Controller CPU Module |
| NFPW442 |
Power Module |
Advantages
- Combines bus connection and termination in one device
- Improves communication signal integrity
- Reduces installation complexity
- Compact and durable industrial construction
- Reliable long-term operation
- Easy maintenance and replacement
- Supports stable Yokogawa SB Bus communication
- Suitable for distributed control systems
Frequently Asked Questions
What is the NFSBT02 used for?
It is used as an SB Bus T-connector with an integrated terminator, providing both bus connection and end-of-line signal termination in Yokogawa communication networks.
Why is bus termination important?
Proper termination reduces signal reflections and helps maintain reliable communication across the SB Bus network.
Does the NFSBT02 process communication data?
No. It is a passive communication accessory that provides physical bus connection and termination rather than processing data.
Where is it installed?
It is installed at designated connection or termination points within the Yokogawa SB Bus network.
Which systems commonly use the NFSBT02?
It is used in Yokogawa distributed control systems across industries such as oil and gas, power generation, chemical processing, water treatment, manufacturing, and other industrial automation applications.
Conclusion
The Yokogawa NFSBT02 SB Bus T-Connector with Built-In Terminator is a compact communication accessory designed to improve the reliability of Yokogawa SB Bus networks. By combining signal distribution and integrated bus termination in a single unit, it simplifies installation while ensuring stable and dependable communication in industrial distributed control systems.