Description
ABB VBX01T–VBX01B – Fiber link pair for cabinet-to-cabinet control bus extension
ABB’s VBX01T–VBX01B is commonly used as a matched transmitter/receiver pair to carry a control-system bus over fiber between panels. From my experience, teams pick this set when they need reliable cabinet-to-cabinet expansion without fighting electrical noise, or when the run simply exceeds copper limits. You might notice that it tends to slot into brownfield upgrades nicely—retain the existing controller, push the I/O farther out, and keep the signal integrity clean.
Typical use cases include extending an ABB controller backplane or local fieldbus to a remote I/O rack, bridging long distances across a plant floor, or isolating zones with heavy VFD interference. One thing I appreciate is the simplicity: install, fiber in/fiber out, wire the bus side, verify link, and you’re back online with minimal downtime.
Our Order Placement Process and Guarantees
- Warranty: 365 days
- Lead time: 1 week for in‑stock; no more than one month at the latest
- Payment: 50% advance payment; full payment before delivery
- Express delivery: FedEx, UPS, DHL
- Each unit is function-checked and securely packed; test reports available on request
Key Features
- Matched pair (VBX01T transmitter + VBX01B receiver) – Designed to work together for stable, deterministic link behavior between panels.
- Fiber-optic isolation – Breaks ground loops and bypasses EMI/EMC issues that typically plague copper runs near large drives and motors.
- Long-distance cabinet bridging – In many cases, supports distances far beyond copper backplane limits; handy for plant expansions.
- Industrial temperature design – Built for control cabinets; generally suitable for conditioned environments per ABB panel standards.
- Simple installation – DIN-rail friendly form factor with straightforward bus-side wiring; status indicators help with quick commissioning.
- Maintenance-light – No moving parts; routine checks focus on fiber cleanliness and connector condition.
Technical Specifications
Notes: The VBX01T–VBX01B is applied across multiple ABB control platforms; exact pinouts and limits can vary by system. The entries below reflect common deployments. If you share your target controller/I/O family, we’ll confirm the precise datasheet.
| Brand / Model | ABB VBX01T (Transmitter) + ABB VBX01B (Receiver) |
| Function | Fiber-optic bus extender pair for ABB control systems; cabinet-to-cabinet link |
| HS Code (reference) | 8538.90 – Parts suitable for use with industrial control apparatus |
| Power Requirements | 24 VDC nominal (typical in ABB auxiliary modules); allow design margin of ≥0.5 A per unit until confirmed |
| Operating Temperature | 0…+55 °C (typical control cabinet ambient); non-condensing environment recommended |
| Signal I/O Types | Fiber-optic link (Tx/Rx) plus system-bus electrical interface to the host cabinet; exact bus type depends on the target ABB platform |
| Communication Interfaces | Optical connection for the inter-cabinet span (commonly multi-mode); electrical bus connection on each end to the respective rack or controller |
| Installation Method | Control cabinet mounting, typically DIN-rail or panel mount; front status LEDs for link and power |
Related or Supporting Products
- 24 VDC DIN-rail power supply (industrial grade) – Stable auxiliary power improves link reliability; pick with ≥20% headroom.
- Multimode fiber patch cords and pigtails – OM2/OM3 depending on distance; keep proper bend radius and end-face cleanliness.
- Panel feed-through fiber adapters – Makes maintenance easier and protects cabinet internal terminations.
- Surge protection and grounding kit – Helpful in high-EMI zones to keep the electrical side quiet.
- ABB CI854A / TB8xx families (example interfaces) – Not direct replacements, but often used alongside when expanding fieldbus or ModuleBus segments.
A maintenance lead from a paper mill told us the VBX01T–VBX01B “cleaned up intermittent bus alarms after we relocated I/O to a remote MCC room—no more noise issues across the span.”
Installation & Maintenance
- Cabinet environment – Mount on 35 mm DIN rail or secure panel; provide ventilation space on top/bottom; keep ambient within typical control-cabinet range.
- Wiring – Use correctly rated 24 VDC supply with proper grounding; segregate low-voltage signal wiring from power cables; bond shields at one end to avoid loops.
- Fiber handling – Clean connectors (lint-free wipes + IPA), respect minimum bend radius, label both ends; avoid tight conduits that may pinch the cable.
- Commissioning – Power up each side, check link LEDs, verify bus integrity from the host controller; document optical loss (dB) for future reference.
- Routine maintenance – Quarterly visual inspection, connector cleaning if link margin drops, and verification after any cabinet work; firmware updates if applicable to your variant.
- Safety – De-energize before wiring; follow ESD precautions; keep fiber ends capped when not connected.
Quality & Certifications
- CE conformity (EMC/Low Voltage), RoHS compliant
- UL/CSA recognition typically available for control cabinet components
- Manufactured under ISO 9001 quality systems
- Manufacturer’s warranty policy varies by region and program; our supply warranty is 365 days
If you can share your target ABB platform (e.g., controller family and I/O rack type) and the cabinet-to-cabinet distance, we’ll confirm the exact connector type, optical budget, and any pinout specifics for VBX01T–VBX01B so you can order with confidence.
Reviews
There are no reviews yet.