Description
- Model: TB820V2
- Brand: ABB
- Part Number: 3BSE013208R1
- Part Type: ModuleBus Cluster Modem
- System: ABB S800 I/O / System 800xA
- Protocol: ModuleBus
- Power: 24 VDC, typical consumption 100 mA
Technical Introduction
The ABB TB820V2 3BSE013208R1 is the ModuleBus interface used to extend ABB S800 I/O clusters over optical fiber.
ABB describes the TB820V2 as a ModuleBus Modem with both electrical and optical interfaces. The electrical side connects to the I/O modules, while two fiber-optic ports provide the optical ModuleBus connection for distributed I/O clusters. Up to 12 I/O modules can be connected on the electrical ModuleBus, with up to seven clusters on the optical ModuleBus. The module also provides supervisory functions for the I/O ModuleBus and power supply and includes an isolated power supply for the I/O modules.
Best Suited For
- ABB S800 I/O cluster expansion
- System 800xA maintenance and spare inventory
- Replacement of failed TB820/TB820V2 optical ModuleBus interfaces
Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ABB |
| Type Designation | TB820V2 |
| Article Number | 3BSE013208R1 |
| Product Type | ModuleBus Cluster Modem |
| Communication Protocol | ModuleBus |
| Interface | Electrical ModuleBus + 2 optical ModuleBus ports |
| Master / Slave | Slave |
| Redundancy | Non-redundant |
| Hot Swap | No |
| Input Voltage | 24 VDC, 19.2–30 VDC |
| Typical 24 VDC Consumption | 100 mA |
| Optical ModuleBus Clusters | Up to 7 |
| Electrical ModuleBus Modules | Up to 12 I/O modules |
| Operating Temperature | 0 to +55 °C |
| Storage Temperature | -40 to +70 °C |
| Relative Humidity | 5–95% non-condensing |
| Protection Class | IP20 |
| Dimensions | 58 × 170 × 122 mm |
| Weight | 0.3 kg |
| Certifications | CE, ATEX Zone 2, C1 Div 2 cULus, selected marine approvals |
ABB TB820V2 3BSE013208R1
ABB’s current datasheet specifies the TB820V2 as a non-redundant ModuleBus slave and provides the electrical, environmental, dimensional, and certification data above.
Field Engineer’s Tech Notes
- Fiber topology matters. provides two optical ModuleBus ports for cluster distribution. Before replacement, document which fiber is connected to each port and verify the intended cluster number using the module’s rotary selector. ABB specifies cluster selection from 1 through 7.
- Do not assume the can be hot-swapped. ABB’s hardware selector explicitly lists Hot Swap: No and Module Redundancy: No for this article number. Follow the plant shutdown, isolation, and removal procedure before replacing the modem.
Adaptive QA & Testing Protocol
For a , incoming inspection starts with verification of the 3BSE013208R1 identification, enclosure, terminal block, optical ports, LEDs, latching mechanism, and rotary cluster selector. The unit is checked for cracked housings, connector damage, contamination, and signs of overheating.
Where an ABB S800 I/O test environment is available, testing includes 24 VDC power-up, module initialization, electrical ModuleBus communication, and optical ModuleBus link verification. The applicable I/O cluster is then checked for proper module recognition and communication behavior. The cluster selector is also verified against the intended system configuration.
Test reports, inspection photographs, and available test videos can be provided upon request.
ABB TB820V2 3BSE013208R1
Buyer’s FAQ
Is ABB 3BSE013208R1 compatible with S800 I/O?
Yes. ABB identifies as the ModuleBus Modem for the S800 I/O architecture, providing electrical and optical ModuleBus interfaces for distributed I/O clusters.
Is this a redundant ModuleBus modem?
No. ABB specifies no module redundancy and no line redundancy for 3BSE013208R1.
Can the be replaced while the system is powered?
ABB’s current data sheet lists the module as not hot-swappable. Follow the site’s approved isolation and replacement procedure rather than removing it under power.
Is the part available new or refurbished?
Availability and condition depend on the current inventory lot. New surplus, new old stock, and refurbished units may be available. Confirm exact condition, test status, warranty, and lead time before purchase.
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