Description:
The NTEU40AA is an internal functional card used within Nortel Networks transport and multiplexer platforms, most commonly associated with the Optical Metro 4000 series of PDH/SDH transport systems. In this context, it is described as an “Upper EOS card,” meaning it serves as a major module inside the chassis that interfaces with the electro‑optical shelf (EOS) backplane. This type of card provides key data/signal distribution functions, connecting other internal cards and backplane resources to enable flexible transport configurations.
? Key Features
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Manufacturer: Nortel Networks (legacy telecom OEM)
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Part Number: NTEU40AA
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Product Type: Internal shelf/backplane card (Upper EOS card)
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Platform: Nortel Optical Metro 4000 / TN‑4XE or similar transport/multiplexer systems
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Role: Upper electro‑optical shelf (EOS) functional card
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Application: Telecom transport infrastructure — PDH/SDH aggregation/multiplexing
⚙️ Technical Overview (Context)
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Card Function: Upper shelf / backplane interface in a chassis
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System Integration: Installed in a Nortel transport/multiplexer shelf with backplane connections
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Form Factor: Pluggable module for EOS backplane
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Compatibility: Works within Nortel Optical Metro 4000 and similar platforms
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Lifecycle Status: Legacy part for discontinued Nortel systems
