Huawei SSN1AUX System Auxiliary Interface Board

The Huawei SSN1AUX is a System Auxiliary Interface Board designed for the Huawei OptiX OSN 3500 and OSN 7500 series multi-service optical transmission platforms. It serves as a critical component that provides centralized +3.3V power backup for all boards in the subrack, alongside comprehensive management and auxiliary interfaces for system operation and maintenance.

The SSN1AUX is a system auxiliary interface board that consolidates multiple interface types—including management, clock synchronization, alarm, and auxiliary interfaces—into a single board, simplifying network management and enhancing system reliability.

The Huawei SSN1AUX is widely deployed in the following environments:

• The SSN1AUX provides centralized +3.3V power backup for the entire subrack, offering 1:N protection for secondary power supplies.

• The COM port is reserved for external board communication only; improper use may cause inter‑board Ethernet communication issues.

• Serial 1–4 can be configured as broadcast data channels or time interfaces, but these applications are mutually exclusive.

• For orderwire telephone functionality, each conference call sub‑network should not exceed 10 nodes.

• Compatibility depends on the specific chassis model and system software release. Always verify compatibility with your supplier before purchasing.

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