ABB TB820V2 3BSE013208R1 – Optical Module Unit for Advant / S800 I/O Systems
1. Product Summary
The ABB TB820V2 (3BSE013208R1) is a communication interface module designed to enable optical single-mode fiber connection between remote I/O clusters and controller units in ABB Advant, AC 800M, and S800 I/O systems. It is primarily used where long-distance, high-noise, or high-EMI environments require fiber-optic signal transmission instead of copper cabling.
As a V2 hardware revision, it offers improved noise immunity, higher reliability, and upgraded diagnostics over earlier versions of TB820.
2. Key Features
Optical fiber link for remote I/O communication
Supports single-mode fiber up to 15 km distance
Acts as a ModuleBus Optical Extension for S800 I/O
Rugged design suitable for industrial and process automation environments
Built-in supervision and LED diagnostics
Hot-swappable module (no power-down required for replacement)
Full compatibility with CI801, CI840, CI854, PM865, PM891, and similar AC 800M controllers
V2 version ensures firmware, EMC, and performance improvements
3. Technical Specifications (non-table format for this model)
Module Type: Optical ModuleBus Interface
Fiber Type: Single-mode, 1310 nm wavelength
Optical Range: Up to 15 km with recommended cable grade
Connectors: SC duplex optical port
ModuleBus Connection: Electrical to baseplate backplane
Power Consumption: < 1.5 W from I/O base
Operating Temperature: –25 °C to +70 °C
Storage Temperature: –40 °C to +70 °C
Protection Class: IP20 (DIN-rail mounting inside cabinet)
Certifications: CE, UL, CSA, ATEX (when used in certified system)
4. Structure & Components
| Component |
Description |
| Optical Interface Port |
SC-type fiber connectors used for point-to-point or ring topology |
| Backplane Connector |
Internal ModuleBus electrical interface |
| Front LEDs |
Module status, link status, power OK indicators |
| Plastic Housing |
Standard S800 I/O form factor, DIN rail compatible |
| Internal Diagnostics |
Link supervision, error count, watchdog |
5. Typical Applications
Distributed I/O installations in large process plants
Fiber-linked remote cabinet networks in power generation & substations
Offshore / marine automation with long-distance cabinet separation
Harsh EMI environments (steel mills, HV switchgear rooms)
Oil, gas, petrochemical, and pharmaceutical production lines
Extensions of S800 I/O to remote turbine or compressor skids
6. Installation & Handling
Mount on S800 I/O baseplate (no external power wiring required)
Connect single-mode fiber using SC connectors – clean before mating
Verify link with LED indicators before commissioning
Use ABB Control Builder / 800xA tools to configure module supervision
Always match TB820V2 ↔ TB820V2 or compatible optical partner for stable link
Observe fiber bend radius and cabinet grounding rules
7. Maintenance Guidelines
No periodic calibration required
Inspect fiber connectors if link errors increase
Module replacement does not require system power-down (hot-swap supported)
Use ABB online diagnostics (status bits) via controller to monitor link health
Keep at least one spare module per fiber-linked I/O segment
8. Additional Notes
The 3BSE013208R1 ordering code corresponds to V2 PCB hardware + firmware revision
Replaces older part numbers TB820 and TB820V1
Fully supported in ABB 800xA v5, v6, and v7 systems
Switzerland 
.jpg)
.jpg)
