Description
The Ciena NTK539PBE5 is a 40 G OCLD optical line circuit pack used in the Ciena 6500 Packet‑Optical Platform for high‑capacity DWDM transport applications. It belongs to the NTK539 family of coherent optical line cards that enable 40 Gb/s transmission using eDC40 OTU3+ coherent modulation with forward error correction.
The PBE5 variant is specifically engineered for extended‑reach optical links with tight PMD tolerance, making it suitable for long‑haul and regional DWDM networks.
Key Features
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Manufacturer: Ciena
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Part Number: NTK539PBE5
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Product Type: 40 G coherent optical line interface circuit pack
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Application: DWDM optical transport in Ciena 6500 Packet‑Optical Platform
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Optical Technology: eDC40 OTU3+ coherent modulation (dual‑polarization QPSK)
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Extended Reach: Designed for up to ~1800 km reach with low PMD tolerance (10 ps)
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Integration: Installed in compatible 6500 shelf backplane slot
Technical Overview
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Function: Provides a 40 Gb/s coherent optical line interface for dense wavelength‑division multiplexed (DWDM) networks.
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Modulation & FEC: Dual‑polarization QPSK with high‑coding‑gain forward error correction covering OTU3+ framing.
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Optical Reach: Extended‑reach version of the 40G OCLD family supporting longer fiber spans (around 1800 km) with practical optical link margins.
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Tunable Scope: C‑band DWDM wavelengths (tunable 50 GHz spacing) typical for long‑haul Ciena optical transport networks.
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Use Cases: Metro/regional optical backbone links, long‑haul DWDM transmission, and carrier optical access networks
