Huawei PCX TNM1PCXLG 03021CWT 1xSTM-1/4/16,1xGE for OSN550
The Huawei TNM1PCXLG (Product Code: 03021CWT) is a high‑performance hybrid system control, switching, and timing board designed for the Huawei OptiX OSN 550 Multi‑Service Transport Platform (MSTP). As a member of the PCX series, it combines TDM cross‑connect, packet switching, system control, timing synchronization, and network management into a single compact blade.
This board integrates cross‑connect, timing, system control, and line interface functions in one unit. The TNM1PCXLG is installed in slots 7 and 8 of the OSN 550 chassis. It is an ideal solution for metro network access layers, local transmission networks, leased line access for enterprise customers, and mobile base station backhaul deployments.
| Parameter | Specification |
|---|---|
| Manufacturer | Huawei |
| Product Model | TNM1PCXLG |
| Product Code | 03021CWT |
| Product Type | System Control, Switching, and Timing Board (Hybrid) |
| Compatible Platform | Huawei OptiX OSN 550 |
| Slot Location | Slots 7 and 8 |
| Packet Switching Capacity | 46 Gbit/s |
| Higher‑Order Cross‑Connect | 20 Gbit/s |
| Lower‑Order Cross‑Connect | 5 Gbit/s |
| STM-N Optical Port | 1× SFP port (rate‑variable: STM‑1/4/16) |
| Optical Port Compliance | ITU‑T G.957 |
| Supported Optical Types (STM‑1) | S‑1.1, L‑1.1, L‑1.2 |
| Supported Optical Types (STM‑4) | S‑4.1, L‑4.1, L‑4.2 |
| Supported Optical Types (STM‑16) | S‑16.1, L‑16.1, L‑16.2 |
| GE Ethernet Port | 1× GE SFP port |
| GE Supported Standards | 1000BASE‑SX / LX / VX / ZX |
| NMS Port | 1× RJ45 (sharing an NMS serial port) |
| System Control | On‑board system control and communication processor |
| Timing | Integrated timing unit for synchronization |
| Connector Type | LC |
| Fiber Type | Single‑Mode Fiber (SMF) |
| Hot‑Swappable | Yes |
| Environmental Standard | Carrier‑grade, suitable for telecom environments |
The Huawei TNM1PCXLG / 03021CWT board is a versatile hybrid board suitable for a wide range of deployment scenarios:
| Scenario | Description |
|---|---|
| Metro Network Access Layer | Aggregates multi‑service traffic (leased lines, IP‑PBX, enterprise LAN) from access nodes into the metro backbone. |
| Local Transmission Network | Provides reliable TDM and packet transport between central office sites, telecom huts, and remote equipment rooms. |
| Enterprise & Government Leased Lines | Supports both legacy TDM leased lines (E1 over STM‑1) and modern high‑speed packet leased lines (Gigabit Ethernet). |
| Mobile Backhaul (2G/3G/4G/LTE) | Backhauls traffic from remote mobile base stations to the aggregation/core network via STM‑N optical links. |
| Hybrid TDM/Packet Network Deployment | Enables dual‑domain coexistence, allowing operators to carry legacy TDM traffic and emerging packet traffic on the same optical infrastructure. |
The OptiX OSN 550 platform mainly applies to the access layer of metropolitan area networks and local transmission networks to access services such as VIP private lines and wireless base station services. The OSN 550 supports MPLS, MPLS‑TP, PWE3, Ethernet, ATM, WDM, SDH, and PDH technologies
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