Description:
The Nortel NTEU25AA is a legacy optical transport module used in Nortel Optical Metro 4150 and 4200 SDH systems. It functions as an STM‑16 aggregate card, supporting short-haul optical transmission over single-mode fiber at 1310 nm with an FC/PC optical interface.
Key Features:
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Manufacturer: Nortel Networks (legacy telecom OEM)
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Part Number: NTEU25AA (variants include NTEU25AA‑29, NTEU25AA 43)
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Product Type: STM‑16 Optical Aggregate Card
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Application: SDH optical transport and aggregation in metro/regional networks
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Role: Aggregates high-order SDH traffic (STM‑16)
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Family: Part of Nortel’s NTEUxx series of chassis modules
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Condition: Typically available as used, refurbished, or spare legacy inventory
Technical Overview:
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System Integration: Designed for installation in Nortel Optical Metro 4150/4200 chassis and related SDH ADMs supporting STM‑16 configurations
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Function: Aggregates STM‑16 optical traffic for SDH transport systems; supports terminal multiplexer and add/drop configurations
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Optical Interface:
• Wavelength: 1310 nm (short-haul optical)
• Connector: FC/PC -
Data Rate: STM‑16 (~2488 Mbps)
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Optical Parameters: Typical receive sensitivity around −18 dBm and overload at −4 dBm (approximate values for short-haul cards)
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Form Factor: Rack/chassis card module for telecom shelves
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Compatibility: Compatible with legacy Nortel optical transport platforms (OM 4150/4200)
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Lifecycle Status: Legacy / End-of-Life; supported via third-party refurbished parts industry
