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Phone: +86 16626708626Description
Key Technical Specifications
- Part number: 3AL81502AAAA 02
- Manufacturer: Alcatel-Lucent
- Product family: 1678 MCC
- Function: Power supply filter
- Application: Telecom and carrier power systems
- Description reference: 1678 MCC POWER SUPPLY FILTER
- Condition: OEM / New Surplus
- Availability: Limited stock
- Replacement type: Direct-fit power system component
- Compatibility note: Verify exact chassis and revision before ordering
Product Introduction
Alcatel-Lucent 3AL81502AAAA 02 is an OEM power supply filter used in 1678 MCC telecom power systems. It is the type of part maintenance teams order when a carrier rack needs a correct replacement, not a guess.
This filter is chosen for exact form-fit replacement and for keeping power-side noise and filtering consistent with the original system design. Verify the chassis revision, connector layout, and installed subassembly before purchase.
- 3AL81502AAAA 02
- 3AL81502AAAA 02
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Power system noise, ripple, or unstable DC output | Failed filter stage or degraded capacitors nearby | ✅ High | Measure output ripple with a scope and check supply rail stability under load | Inspect this filter and adjacent power modules |
| Rack powers up, then drops under load | Upstream PSU weakness, overload, or poor grounding | ❌ Low | Measure input voltage at the PSU terminals and compare against spec | Check PSU, load current, and grounding first |
| Blown input fuse after startup | Shorted filter or downstream fault | ✅ Medium | Isolate the filter and test resistance to ground with power removed | Replace only after confirming the downstream load is not shorted |
| Excessive heat in the power bay | Restriction in airflow, overload, or failing power module | ❌ Low | Check cabinet temperature and current draw during operation | Do not replace the filter until thermal and load checks pass |
| Intermittent alarms on the power shelf | Loose connection, oxidized contacts, or wiring issue | ✅ Medium | Inspect connectors, reseat module, and perform a continuity check | Clean contacts and verify fit before replacing the part |
If you are stuck, contact technical support with photos, rack details, and any diagnostic logs.
Frequently Asked Questions
Q: What exactly is this part?
A: It is an Alcatel-Lucent 3AL81502AAAA 02 power supply filter used in 1678 MCC power systems. That makes it a telecom power-side component, not a general-purpose filter.
Q: Is this a direct replacement for my unit?
A: Usually yes, if your existing part number matches exactly. Do not rely on similar-looking labels; verify the full suffix, chassis, and revision before ordering.
Q: Is this new, used, or refurbished?
A: This listing should be treated as new surplus or OEM stock, not refurbished. In this category, condition matters, so check for original packaging, cosmetic state, and traceability before installation.
Q: Why is this cheaper than a factory-new part?
A: Surplus pricing usually comes from excess inventory, not lower-grade construction. That said, you should still confirm traceability, storage history, and physical condition before buying.
Q: Can I install it without shutting the system down?
A: No, not unless your cabinet documentation explicitly allows live replacement. Power-side parts are not something you swap by memory; kill power and follow the site procedure.
Q: What should I verify before installation?
A: Check the exact part number, connector fit, mounting points, and any site-specific revision notes. If the old unit failed, document the fault before replacement so you do not swap in a new part and miss the real cause.
Q: What warranty should I expect?
A: Warranty depends on the seller and stock condition, so it is not safe to assume factory coverage. Ask for the written warranty term and make sure it matches the purchase record.
