Description
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Power Supply | 24 V DC |
| Fiber Type | 2 x 65.5/125 μm or 100/400 μm multimode |
| Connectors | ST-style |
| Function | Coaxial/Optical or Optical/Coaxial conversion |
| Bus Type | Advant Fieldbus 100 |
| Mounting | DIN rail or panel |
| Cable Mode | Point-to-point duplex optical link |
| Operating Temperature | Standard industrial range (verify exact in datasheet) |
4. Product Introduction
The ABB TC630 (3BSE002253R1) is an optical modem for Advant Fieldbus 100 networks. It provides point-to-point duplex optical cable connections between coaxial segments, extending communication distance and improving noise immunity in DCS installations.
In AC 400 and AC 800M systems, this modem links fieldbus segments reliably over longer runs or in electrically noisy environments. It handles the conversion between electrical coaxial signals and optical fiber without introducing significant latency.
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No power LED | Supply voltage missing | High | Measure 24 V DC at power terminals | Verify PSU and wiring |
| No communication | Fiber broken or dirty | High | Check optical TX/RX LEDs and clean connectors | Inspect fiber ends and attenuation |
| Link down | Wrong fiber type or distance | Medium | Confirm fiber specs vs. run length | Use correct multimode fiber and ST connectors |
| Intermittent errors | Loose connections | High | Reseat coaxial and optical cables | Check torque on connectors |
| High bit errors | Noise or grounding issue | Medium | Monitor bus diagnostics in controller | Improve shielding and grounding |
Most issues trace to cabling rather than the modem itself. If LEDs show power but no link after cable checks, replace the unit. Provide photos of LEDs and diagnostics for faster support.
- TC630
- TC630
6. Frequently Asked Questions (FAQ)
What exactly does the TC630 do? It converts Advant Fieldbus 100 signals between coaxial cable and optical fiber (and back). This allows mixing media types or extending segments beyond coaxial limits.
Is this a new original module? Yes, New Original / New Surplus. Units receive full visual, power-on, and communication handshake testing before shipment.
Can it connect directly to my existing AF 100 network? Yes, as a media converter between coaxial and optical segments. Match fiber type (65.5/125 or 100/400 μm) and use ST connectors.
Does it require special configuration? No DIP switches or software setup needed for basic operation. It is plug-and-play for signal conversion.
What is the warranty period? 1-year warranty on functionality. Coverage applies to normal industrial use with proper fiber and power.
How far can the optical link go? Distance depends on fiber quality and type. Typical multimode runs support hundreds of meters — check your specific fiber attenuation budget against the manual.
Do you test communication before shipping? Yes. We verify link establishment with standard AF 100 traffic. Test reports and photos are available on request.
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