021ARY Huawei OptiX OSN Series Telecom System Card

The Huawei 021ARY is an SSN3PSXCSA optical interface board designed for use within Huawei’s OptiX OSN series optical transmission platforms. This board provides STM-1 level optical processing capabilities, enabling reliable data transmission across SDH/SONET transport networks.

The SSN3PSXCSA is typically deployed within OptiX OSN 3500, OSN 7500, or similar multi-service transport platforms. It serves as a tributary or line interface unit, facilitating optical signal conversion and multiplexing functions essential for carrier-grade telecommunications infrastructure.

This is a legacy component from Huawei’s established SDH optical networking portfolio. While newer packet-optical and OTN technologies have largely superseded traditional SDH platforms, these boards remain essential for maintaining and extending existing network deployments where SDH infrastructure continues to operate.

Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.