Yokogawa SSB401-53 ESB Bus Interface Slave Module
The Yokogawa SSB401-53 is a esb bus interface slave module for Yokogawa platforms. Connection Method: Star type connection, Chain type connection (Available for both star and chain type connection) | Number of Connecting Stages: Maximum two | Transmission Distance: 5 km to 50 km (total two stages). Factory-sealed, live-rack tested, 48-hour burn-in. 12-month warranty. Ships within 24 hours.
Technical Specifications
| Optical ESB Bus Repeater Module | converts ESB Bus signals, facilitating communication between the safety control unit, safety node unit, and N-IO node, into optical signals. It extends the ESB Bus transmission distance by connecting the Optical ESB Bus Repeater Master Module (SNT411) and Optical ESB Bus Repeater Slave Module (SNT511) with an optical fiber cable. This extension allows for transmission distances of up to 50 km. |
|---|---|
| Function | ESB Bus optical transport function (Vnet/IP only) |
| Connection Method | Star type connection, Chain type connection (Available for both star and chain type connection) |
| Number of Connecting Stages | Maximum two |
| Transmission Distance | 5 km to 50 km (total two stages) |
| Optical Power Attenuation | 3-4 dB attenuation between SNT411 and SNT511, S2EN501 and SNT511, or SNT411 and S2EN501. If the optical attenuation by the optical fiber cable is less than 3 dB, an attenuator should be used to reduce the attenuation by 3 dB. |
| Current Consumption | 0.5 A |
| Weight | Approx. 0.3 kg |
| Manufacturer | Yokogawa |
| Model / SKU | SSB401-53 |
Ships within 24 hours | 12-Month Warranty | Worldwide Delivery
The Power Supply Rule: One Spare Per Rack
Power supplies fail more often than any other module type — not because they are poorly made, but because electrolytic capacitors have a finite life that shortens with temperature. The Yokogawa SSB401-53 is the power supply for your Yokogawa rack. We test every unit on a live chassis under load: voltage regulation, ripple, efficiency, protection circuits verified. 48-hour burn-in at 55°C. Printed test report.
For critical systems, the cost of one spare power supply is negligible compared to one unplanned rack outage. 12-month warranty. Ships within 24 hours.
Compatible Parts — Same System
These modules share the same system family as the SSB401-53. Commonly ordered together for complete rack builds or spare parts kits.
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