Description
Product Introduction
The Alcatel-Lucent 3KC18989AA is the core universal switch matrix card designed specifically for the high-capacity Alcatel-Lucent (Nokia) 1830 Photonic Service Switch 36 (PSS-36) shelf architecture. Positioned at the heart of the PSS-36 switching backplane, this board provides non-blocking, multi-terabit cross-connection for ODUk sub-wavelength payloads, Ethernet packets, and legacy SDH/SONET traffic streams.
Operating as the primary switching fabric engine, the 3KC18989AA isolates core signal routing from physical line cards, allowing flexible traffic groomings without bottlenecking backplane throughput. To maintain carrier-grade 99.999% system availability, 1830 PSS-36 shelves deploy these matrix modules in active/standby redundant pairs. Replacing a degraded matrix card quickly is crucial; a failed primary matrix drops system redundancy and leaves your entire core transport node running unprotected on a single fabric engine.
Key Technical Specifications
| Parameter | Specification / Value |
| Part Number | 3KC18989AA |
| CLEI Code | WOCUAW2 / WOCUAW2UAA |
| Manufacturer | Alcatel-Lucent / Nokia |
| Platform Compatibility | Alcatel-Lucent 1830 PSS-36 Chassis |
| Module Type | MTOC Switch Matrix / Cross-Connect Card |
| Switching Fabric | Universal Non-Blocking ODUk / Ethernet / SDH |
| Redundancy Support | 1+1 Hardware Switch Matrix Redundancy (Active/Standby) |
| System Throughput | Up to 1.2 Tbps Full-Duplex per PSS-36 Shelf |
| Operating Voltage | Dual Redundant -48V DC / -60V DC Feeds |
| Cooling Requirement | Shelf Forced Air Cooling (High-CFM Fan Tray Dependent) |
| Status Indicators | LED (STAT, ACT/STBY, CRIT, MAJ, MIN alarms) |
Application Scenarios & The “Trench” Experience
It is 2:10 AM during a scheduled maintenance window. A core transport hub routing city-wide metro traffic throws a memory parity fault on the primary switch matrix card in an 1830 PSS-36 shelf. The secondary matrix steps in seamlessly, but the NMS alarms flash red: FABRIC-DEGRADED. Your central optical matrix redundancy is gone. If the remaining card takes an ESD hit or power spike, an entire metro DWDM mesh collapses. Sourcing an OEM-certified 3KC18989AA matrix board instantly restores your dual-fabric protection without forcing a multi-million-dollar core infrastructure migration.
Target Applications
- Metro Core OTN Grooming: Switching and aggregating sub-wavelength ODU0, ODU2, and ODU4 traffic across high-density city rings.
- Long-Haul DWDM Backhauls: Managing core payload routing for enterprise, dark fiber, and regional service provider backbones.
- Data Center Interconnect (DCI) Fabrics: Providing low-latency, non-blocking optical switching between cloud hub data centers.
- Utility Infrastructure Transport: Routing critical operational teleprotection and SCADA networks over resilient optical mesh topologies.
Field Case Study
A major telecommunications provider in a regional metro ring suffered a localized power surge that damaged the active switch matrix card in an 1830 core node. The system fell back to single-fabric operation. The OEM lead time for a replacement 3KC18989AA board was 12 weeks. We provided a pre-tested, factory-sealed surplus 3KC18989AA card overnight. The technician installed the card, verified matrix synchronization via the CLI, and restored 1+1 fabric protection in under 20 minutes.

3KC18989AA
Transparency SOP: Quality Assurance & Testing
Switch matrix cards are the heart of your optical node. We test them ruthlessly before they enter our inventory:
- Inbound Visual & Pin Array Inspection: Detailed microscopy check of high-density backplane pins, solder joint integrity, surface-mount capacitors, and thermal pad condition.
- Backplane Handshake & Power-On Test: Insertion into a live Alcatel-Lucent 1830 chassis to verify EEPROM identification, CLEI verification, and boot-up diagnostics.
- Fabric Synchronization & Traffic Loop Testing: Injecting continuous high-bandwidth ODUk/Ethernet traffic across all shelf I/O slots to verify non-blocking matrix execution and zero packet drops under load.
- Active/Standby Failover Simulation: Forcing manual and software-driven fabric switchovers to guarantee the card executes seamless 1+1 failovers without dropping traffic.
- Anti-Static (ESD) Packaging: Ultrasonic contact cleaning, sealing in heavy-duty static shielding bags, and custom foam insertion for safe global transit.
The Veteran’s Tech Trap Guide (Crucial Value-Add)
⚠️ 1. Matrix Synchronization Delays Are Normal
When inserting a replacement 3KC18989AA board into a running shelf, do not panic if the status LED remains amber for up to 5 minutes. The active fabric card must copy massive cross-connect databases and timing states to the new standby board. Interrupting or pulling the card during database sync will corrupt the standby matrix state.
❗ 2. Verify Backplane Alignment Before Seat-Locking
The 1830 backplane connector for switch matrix boards contains hundreds of microscopic pins. Never force the faceplate ejector handles down. Guide the card straight along the shelf tracks. If you encounter hard resistance in the final quarter-inch, pull the card back out and inspect the backplane for bent pins using a borescope or flashlight.
⚠️ 3. CLEI Code and Revision Matching
Check your existing card’s CLEI code (WOCUAW2 or WOCUAW2UAA) and hardware release version before ordering. While 3KC18989AA cards are generally cross-compatible across 1830 software releases, mismatching firmware revisions between active and standby matrix cards will block 1+1 redundancy synchronization.
❗ 4. Wrist Straps Are Absolutely Mandatory
Matrix switching ASICs operate at high thermal and high-density clock frequencies, making them insanely static-sensitive. Touching the rear edge connectors without a grounded ESD wrist strap clipped to the chassis earth lug can degrade input gates, leading to unexplainable bit errors weeks after installation.
Frequently Asked Questions (FAQ)
Q: Can I hot-swap the 3KC18989AA switch matrix card while traffic is running?
A: Yes. If your 1830 shelf is operating with dual switch matrix modules in a healthy 1+1 redundant state, you can pull the failed matrix card without dropping traffic. The healthy card will seamlessly maintain core cross-connects.
Q: What happens if I insert a 3KC18989AA card with a different software revision than the active matrix?
A: The shelf controller (FLC) will usually flag a SW-MISMATCH alarm. Depending on your system auto-upgrade settings, the controller may automatically flash the standby matrix card to match the running system software version before allowing fabric lock.
Q: Why buy new surplus or refurbished matrix cards over direct OEM ordering?
A: Legacy core transport chassis components often face long manufacturing lead times or end-of-life (EOL) declarations from OEMs. Verified surplus stock provides immediate drop-in availability at a fraction of original list prices.
Q: Are these genuine Alcatel-Lucent / Nokia matrix modules?
A: Yes. All our boards undergo physical silk-screen validation, original EEPROM readout, and CLEI database verification. We never deal in counterfeit or third-party cloned boards.
Q: What warranty comes with the 3KC18989AA module?
A: Every 3KC18989AA module comes backed by a 12-month advance replacement warranty. If any hardware or functional alarm occurs during normal operational use, we dispatch a replacement unit immediately.




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