ABB NTDI01 Digital I/O Termination Unit

OCS Power Supply Module Brand New | DSSB145 ABB Advant

Availability: 10 left in stock

Product Overview The ABB DSSB145 (48980001-AA) functions as a high-performance DC/DC conversion and system backplane interface for ABB’s Advant OCS,...

SKU: DSSB145

Manufacturer: ABB
Product No.: DSSB145
Product Type: DC/DC Converters
Product Origin: Switzerland
Payment:T/T, Western Union
Weight: 450g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Overview

The ABB DSSB145 (48980001-AA) functions as a high-performance DC/DC conversion and system backplane interface for ABB’s Advant OCS, Symphony Plus, and S100 I/O architectures. This module stabilizes and distributes regulated 24V DC power while facilitating the essential communication pathways between the main controller and the field I/O modules. It serves as the electrical backbone of the rack, ensuring that sensitive digital and analog cards receive clean, isolated power. We supply this unit as 100% Brand New and Original, ensuring your critical automation infrastructure maintains peak uptime without the risks associated with used components.

Technical Specifications

The DSSB145 integrates robust power regulation with high-speed bus processing in a standardized Euro-card format.

Attribute	Specification Details
Model Number	DSSB145 / DSSB-145
Part Number	48980001-AA
Primary Function	DC/DC Power Conversion & Backplane Interface
Input Voltage	24 V DC
System Compatibility	ABB Advant OCS / Symphony Plus / S100 I/O
Isolation Rating	2500 V Galvanic/Optical Isolation
Diagnostics	On-board Fault detection and Power Status Monitoring
Form Factor	Euro-card (Subrack Mounting)
Operating Temp	–25 °C to +55 °C
Storage Temp	–40 °C to +70 °C
Dimensions	13.0 cm x 1.9 cm x 19.1 cm
Approx. Weight	0.45 kg - 0.5 kg

Engineering Advantages

The DSSB145 solves complex power integrity and communication synchronization challenges in high-density I/O racks:

Regulated Power Integrity: Fluctuations in primary 24V field power can damage sensitive I/O processors. The DSSB145 filters and regulates the incoming voltage, providing a stable energy source to every module in the subrack, which prevents hardware resets and data corruption.
Decoupled Communication Channels: This module manages the bus communication between the rack and the controller. Its high-integrity design eliminates signal cross-talk and ensures that high-speed data packets remain synchronized across the backplane.
Galvanic Surge Protection: Utilizing 2500V isolation, the DSSB145 prevents electrical noise and surges from migrating through the backplane. This protects the central processor from field-side faults, a critical requirement for power plants and petrochemical facilities.
Advanced Rack Diagnostics: The module continuously monitors the health of the internal power rail and bus integrity. It identifies power drops or communication errors instantly, reporting these faults to the DCS (Distributed Control System) to minimize troubleshooting time during maintenance.

FAQs

Is this unit Brand New or Used?

While some markets offer used DSSB145 units, we strictly provide this product in 100% Brand New and Original condition. Factory-sealed units ensure the full operational lifespan and eliminate the risk of capacitor wear-out common in aged power modules.

Can the DSSB145 be replaced while the system is running?

As the DSSB145 provides power and bus connectivity to the entire subrack, replacing it typically requires a controlled shutdown of that specific I/O bank. Removing the module while energized will interrupt power to all downstream I/O cards, potentially causing an unplanned process trip.

Does this module require specific software configuration?

No. The DSSB145 acts as a transparent hardware interface and power regulator. Once you install it correctly in the subrack, it begins distributing power and facilitating bus communication automatically based on the rack's physical wiring and the controller’s hardware tree.

What causes a "Fault" indicator on the DSSB145?

The fault LED typically signals an internal DC/DC converter failure or an over-current condition on the backplane rail. If the indicator illuminates, check for short circuits in the field I/O modules or verify that the input voltage remains within the nominal 24V DC range.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.