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Key Technical Specifications
- Part Number: 1AB210830014
- Description: Low loss SMF C-band DCM
- Span Length: 100 KM
- Platform: Alcatel-Lucent 1626 LM
- Fiber Type: Single-mode fiber
- Band: C-band
- Connector: MU
- Module Family: Low loss DCM
- Application: Optical dispersion compensation in DWDM systems
- Compatibility: Verify exact 1626 LM shelf and line arrangement before ordering
- 1AB210830014
- 1AB210830014
Product Introduction
Alcatel Lucent 1AB210830014 is a 100 KM low loss dispersion compensation module for the 1626 Light Manager optical platform. It is used in C-band single-mode DWDM links to offset chromatic dispersion on longer spans.
This part is normally bought by exact span and connector match, not by appearance. The important buying factors are the 100 KM rating, the 1626 LM platform fit, and whether the installed optical line design actually calls for this DCM variant.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Link power is present but performance is poor | Wrong DCM span value or optical design mismatch | ✅ High | Compare installed DCM rating to span design | Match the span length before replacing anything else |
| Excessive dispersion or degraded eye pattern | DCM missing, wrong module, or wrong placement | ✅ High | Check optical path and module ID against design docs | Verify the exact 100 KM module location |
| High insertion loss | Dirty connectors or failing module | ✅ High | Clean MU connectors and measure optical loss | Inspect connectors before condemning the DCM |
| No improvement after swap | Issue elsewhere in the line system | ❌ Low | Check amplifiers, spans, and transponders | Do not assume the DCM is the only fault |
| Alarm on optical shelf | Unsupported module or bad seating | ✅ High | Reseat the module and review shelf alarms | Confirm shelf compatibility and module orientation |
| Unit runs hot | Poor airflow or overfilled shelf | ✅ Medium | Check rack airflow and shelf temperature | Verify cooling and spacing in the line shelf |
If you are stuck, contact technical support with photos and diagnostic logs.
Frequently Asked Questions
Q: What is the Alcatel Lucent 1AB210830014?
A: It is a 100 KM low loss DCM, or dispersion compensation module, used in the Alcatel-Lucent 1626 LM optical platform.
Q: What does DCM mean here?
A: DCM stands for dispersion compensation module. In a DWDM line system, it helps offset chromatic dispersion on the fiber span.
Q: Is this the same as a transponder or amplifier?
A: No. It is a passive optical compensation module, not an active service card or amplifier.
Q: Why does the exact KM rating matter?
A: Because the compensation value has to match the span design. A wrong span rating can leave you with poor signal quality or overcompensation.
Q: What connector type does it use?
A: The listing references an MU connector. That matters because patching the wrong connector family can stop the link cold.
Q: Is this usually sold new or refurbished?
A: In the secondary market, it is commonly New Original, New Surplus, or Refurbished. The seller should state condition and test status clearly.
Q: What should I confirm before ordering?
A: Confirm the exact part number, the 100 KM rating, the 1626 LM shelf compatibility, and the line design callout. That is the fastest way to avoid a mismatched optical spare.
