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The Ciena NTK539BN is a Flex2 WaveLogic 3e OCLD Submarine with EDFA, 1xOTU4, C-Band (Type 2) circuit pack for the Ciena 6500 Packet-Optical Platform. Specifically, it serves as the coherent line side of a 6500 100G system, carrying one OTU4 signal over a single DWDM wavelength. As a result, it handles the most demanding submarine and ultra-long-haul spans.

WaveLogic 3 Extreme with Flexible Modulation

In addition, the card uses Ciena’s WaveLogic 3 Extreme (WL3e) coherent technology and supports both DP-BPSK and DP-QPSK modulation. Consequently, operators can choose maximum reach with BPSK or more spectral efficiency with QPSK. Moreover, Ciena rates it for submarine reach with a 150 ps PMD limit, and an integrated EDFA boosts the outgoing signal.

Extended Chromatic Dispersion Tolerance

Furthermore, the NTK539BN matches the earlier NTK539BE submarine card but adds extended chromatic dispersion tolerance. Therefore, it suits uncompensated links with very high accumulated dispersion. Note that this feature uses Ciena’s 6500 Extended Chromatic Dispersion RTU (NTK560GF), and QPSK operation uses the Submarine Flex Modulation RTU (NTK560FG).

How the OCLD Works in a 6500 Shelf

The OCLD receives OTU4 traffic over the 6500 backplane from client cards such as the 100G OCI or 10x10G MUX. For this reason, operators pair it with the client card that matches their services, and Ciena also supports it in 200G regeneration configurations. The card requires 6500 software Release 10.11 or later. For more on the platform, see Ciena’s 6500 Packet-Optical Platform overview.

Where the NTK539BN Fits

Therefore, this OCLD suits submarine cable systems, ultra-long-haul terrestrial routes, and spares for deployed WL3e networks. For new builds that need more capacity per wavelength, the Ciena NTK540BC WaveLogic 5e MOTR offers up to 800G.

Key Features

• First, it provides a 1xOTU4 (100G) coherent line in the C-Band.
• Second, it uses WaveLogic 3 Extreme with DP-BPSK and DP-QPSK modulation.
• Additionally, Ciena rates it for submarine reach with a 150 ps PMD limit.
• Furthermore, an integrated EDFA boosts launch power.
• Moreover, it offers extended chromatic dispersion tolerance.
• Finally, it supports 200G regeneration configurations on the 6500.

Why Lease from Telecom Leasing?

• First, you add long-reach 100G capacity without a large capital outlay.
• Second, we test every unit so it’s ready to deploy.
• In addition, flexible terms cover spares, upgrades, and project builds.
• Finally, you get fast quotes and quick shipping.

Best of all, Telecom Leasing offers the NTK539BN for lease or purchase, so you can stock critical submarine and long-haul spares at a fraction of new cost.

Frequently Asked Questions

What is the Ciena NTK539BN?

In short, it’s a Flex2 WaveLogic 3e OCLD Submarine circuit pack with EDFA and a 1xOTU4 C-Band line for the Ciena 6500.

What’s the difference between the NTK539BN and NTK539BE?

Both are Flex2 submarine OCLDs. However, the BN adds extended chromatic dispersion tolerance and uses WaveLogic 3 Extreme.

Which 6500 software release supports it?

It requires 6500 software Release 10.11 or later.