Yokogawa SNT401-53 Optical ESB Bus Repeater Module
The Yokogawa SNT401-53, also cataloged as the SNT401 Optical ESB Bus Repeater Module, operates as a dedicated hardware component for optical signal conversion and distance extension within CENTUM VP / ProSafe-RS bus networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SNT401-53 |
| Brand | Yokogawa |
| Module Type | Optical ESB Bus Repeater Module |
| Origin | Japan |
| Weight | Standard Bus Module Weight |
| Dimensions | Standard Rack/Panel Dimensions |
| Operating Temp | -40 to +85 deg C |
| Power Consumption | 24 VDC System Power Load |
| Power Supply | 24 VDC |
| Communication Channels | 2-Channel ESB Bus |
| Transmission Medium | Optical Fiber Cable |
| Transmission Distance | Up to 5 km |
| Signal Type | Digital Optical Signal |
| Connector Type | Fiber Optic Connectors |
| Mounting Type | Panel Mount |
| Vibration Resistance | 10 Grms |
| EMI/RFI Immunity | Enhanced High-Immunity Design |
Bus Isolation & Protocol Communication Connectivity
The module bridges long-distance node segments by converting high-speed electrical ESB bus signals into digital optical streams. Fiber optic transmission provides complete galvanic isolation across bus links, suppressing high EMI/RFI noise and preventing ground potential differentials across distributed I/O racks over distances reaching up to 5 km.
Frequently Asked Questions
Q: What transmission distance can be achieved using the Yokogawa SNT401-53 module?
A: The SNT401-53 supports optical fiber communication extensions of up to 5 km between ESB bus nodes without degrading signal synchronization.
Q: How does the optical interface protect against industrial noise in harsh environments?
A: By utilizing fiber optic media, the SNT401-53 isolates communication pathways from electromagnetic interference (EMI) and radio frequency interference (RFI) while offering 10 Grms vibration resistance.
Field Installation Guidelines
- Verify that 24 VDC cabinet power is disconnected before installing or servicing the SNT401-53 module on the mounting panel.
- Clean all optical fiber connector ferrules with isopropyl alcohol and lint-free wipes prior to insertion into the module optical ports.
- Observe minimum bending radius specifications for optical fiber cables during cabinet routing to prevent attenuation loss or glass fiber fracture.
- Secure the module panel-mount hardware to a grounded metal substrate to maintain proper frame grounding and mechanical stability.
- Keep protective dust caps installed on unused fiber optic connector ports to prevent ambient dust and contaminant buildup.
Yokogawa SNT401-53 Optical ESB Bus Repeater Module
Yokogawa SNT401-53 Optical ESB Bus Repeater Module
The Yokogawa SNT401-53, also cataloged as the SNT401 Optical ESB Bus Repeater Module, operates as a dedicated hardware component for optical signal conversion and distance extension within CENTUM VP / ProSafe-RS bus networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SNT401-53 |
| Brand | Yokogawa |
| Module Type | Optical ESB Bus Repeater Module |
| Origin | Japan |
| Weight | Standard Bus Module Weight |
| Dimensions | Standard Rack/Panel Dimensions |
| Operating Temp | -40 to +85 deg C |
| Power Consumption | 24 VDC System Power Load |
| Power Supply | 24 VDC |
| Communication Channels | 2-Channel ESB Bus |
| Transmission Medium | Optical Fiber Cable |
| Transmission Distance | Up to 5 km |
| Signal Type | Digital Optical Signal |
| Connector Type | Fiber Optic Connectors |
| Mounting Type | Panel Mount |
| Vibration Resistance | 10 Grms |
| EMI/RFI Immunity | Enhanced High-Immunity Design |
Bus Isolation & Protocol Communication Connectivity
The module bridges long-distance node segments by converting high-speed electrical ESB bus signals into digital optical streams. Fiber optic transmission provides complete galvanic isolation across bus links, suppressing high EMI/RFI noise and preventing ground potential differentials across distributed I/O racks over distances reaching up to 5 km.
Frequently Asked Questions
Q: What transmission distance can be achieved using the Yokogawa SNT401-53 module?
A: The SNT401-53 supports optical fiber communication extensions of up to 5 km between ESB bus nodes without degrading signal synchronization.
Q: How does the optical interface protect against industrial noise in harsh environments?
A: By utilizing fiber optic media, the SNT401-53 isolates communication pathways from electromagnetic interference (EMI) and radio frequency interference (RFI) while offering 10 Grms vibration resistance.
Field Installation Guidelines
- Verify that 24 VDC cabinet power is disconnected before installing or servicing the SNT401-53 module on the mounting panel.
- Clean all optical fiber connector ferrules with isopropyl alcohol and lint-free wipes prior to insertion into the module optical ports.
- Observe minimum bending radius specifications for optical fiber cables during cabinet routing to prevent attenuation loss or glass fiber fracture.
- Secure the module panel-mount hardware to a grounded metal substrate to maintain proper frame grounding and mechanical stability.
- Keep protective dust caps installed on unused fiber optic connector ports to prevent ambient dust and contaminant buildup.
