Description:
The Nortel NT0H11EK is an internal sub‑rate multiplexer / SRM (Sub‑Rate Module) used in Nortel optical transport platforms such as the Optera Metro 5100/5200 series. It functions to combine multiple lower‑rate SDH tributary signals into a higher‑rate stream, enabling efficient use of optical bandwidth over SONET/SDH links. Variants of this part (e.g., NT0H11EK‑S‑03, NT0H11EK‑S‑08) share the same core function with minor revisions for specific hardware configurations.
Key Features:
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Manufacturer: Nortel Networks
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Part Number: NT0H11EK
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Country of Manufacture: Canada (common for Nortel optical modules)
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Product Type: SDH sub‑rate multiplexer / SRM card
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Application: Optical transport system tributary aggregation
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Role: Combines multiple lower‑order signals into a higher‑order stream
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Family: NT0H1x series for optical transport systems
Technical Overview:
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Function: Sub‑rate multiplexing of SDH tributary signals into a higher‑order path
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Signal Support: Processes lower‑order SONET/SDH signals and maps them for transport aggregation
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Configuration: Typically a 4:1 sub‑rate multiplexer (four sub‑signals into one output)
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Integration: Plugs into Nortel optical transport chassis backplane (e.g., Optera Metro series)
