Overview
It converts electrical ModuleBus signals into optical form, therefore supporting stable data transmission across extended distances.
Moreover, ABB designed this modem to improve system resilience in electrically noisy industrial environments.
Control engineers select TB820 when signal integrity and electrical isolation become critical operational requirements.
Specification
| Parameter | Description |
|---|---|
| Product Name | ModuleBus Optical Modem |
| Manufacturer | ABB |
| Model | TB820 |
| Order Number | 3BSE008555R1 |
| System Compatibility | ABB Advant OCS and ABB 800xA |
| Primary Function | Electrical-to-optical conversion for ModuleBus communication |
| Communication Medium | Fiber-optic cable |
| Supported Protocol | ABB ModuleBus |
| Optical Isolation | Full optical isolation between ModuleBus segments |
| Transmission Distance | Extended range compared with electrical ModuleBus |
| Mounting Type | Installed within ABB system racks |
| Power Supply | Powered from connected control system modules |
| Mechanical Design | Compact industrial module housing |
| Operating Temperature | Designed for continuous industrial cabinet operation |
| Humidity Range | Industrial, non-condensing environments |
| Installation Environment | Control cabinets and automation enclosures |
| Maintenance Requirement | No routine maintenance under normal conditions |
| Expected Service Life | Designed for long-term industrial system operation |
FAQ
It converts electrical ModuleBus signals into optical signals for reliable fiber-based communication.
Q2: Which ABB systems support the TB820 module?
It supports ABB Advant OCS and ABB 800xA control platforms.
Q3: Why use an optical modem for ModuleBus communication?
Moreover, optical transmission reduces noise sensitivity and supports longer communication distances.
Q4: Can TB820 be used in system upgrade projects?
Yes, engineers commonly install it when modernizing or expanding existing control systems.
Q5: Does the TB820 require periodic maintenance?
No, it operates without routine maintenance in standard industrial operating conditions.
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