DWDM
Dense Wavelength Division Multiplexing
Basics of DWDM - Up to 96 DWDM wavelength over one pair of fiber
DWDM highlights
- Up to 96 DWDM wavelength over one pair of fiber
- DWDM channel spacing 0.8 nm (100 GHz grid) or 0.4 nm (50 GHz grid)
- Distances over 1,000 km can be achieved with the use of optical amplifier
- DWDM wavelength: 1528 nm (channel 61) to 1563 nm (channel 17)
DWDM principle
The functionality of DWDM (Dense Wavelength Division Multiplexing) resembles to the one of CWDM. The DWDM channel spacing is 0.8/0.4 nm (100 GHz/50 GHz grid). This small channel spacing allows to transmit simultaneously more information. Currently a restriction on wavelengths between 1530 nm and 1625 nm exists which corresponds to the C and L band. DWDMwavelengths are more expensive compared to CWDM caused by the need of more sophisticated transceivers.
Theoretically available DWDM channels in the C and L-band depending on the channel spacing
Technical Details:
- ITU-T G.694.1
- C-Band λ: 1530 nm - 1565 nmmax. 360 channels (12,5 GHz Grid)
- L-Band λ: 1565 nm - 1625 nm max. 560 channels (12,5 GHz Grid)
More Informations
References
Full redundancy regarding mission critical Ethernet and Storage applications to Theo backup data center
We have been using Pan Dacom Direkt products for our business connections on the Frankfurt airport site for years and are enthusiastic about the stability of the systems.
Klaus Schultz-Fademrecht (Senior Manager Networks, Fraport AG)
In addition to the optimal price / performance ratio of the SPEED-OTS 5000 system, we were impressed by the quick and easy commissioning and the good support.
Jochen Brünger (Leiter Informatik Produktion)
Our goal was to get an easy-to-use WDM system in order to connect our data center locations, which we can also scale in the future. In addition to the top advice and the good price-performance ratio, the very good References convinced us
The excellent price-performance ratio compared to the competition and the impressive references in the market were decisive for the purchase of the SPEED-OTS 500 system.
Ring-shaped, redundant connections from the production studios Freimann and Unterföhring to the Funkhaus location. In addition to company-wide telecom and IT-services such as 10 Gigabit Ethernet, STM-64 and 8G Fiber Channel, radio-specific ones also were supported.
The cooperation with Pan Dacom Direkt GmbH has been characterized by speed, reliability and stability for years. This, coupled with good cost efficiency and scalability, is the basis for the long-term partnership.
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Thanks to the professional advice and on-site inspection by Pan Dacom Direkt, we were once again able to save costs when networking our locations.
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Diter Gruber, Netzwerkingeningeniuer Stadtwerke Konstanz
For the highest possible security against eavesdropping on our fiber optic cables and cable ducts, we rely on the infrastructure monitoring of Pan Dacom Direkt GmbH
Michael Cremer, Sales Manager WINGAS GmbH
We were impressed by the quick and easy installation by the Pan Dacom Direct Service Team, who implemented the networking of the data centers in less than 5 days
Severin Braun, Director Operations PlusServer GmbH
High-speed network FAIR Tera Net for research relies on the WDM system from Pan Dacom Direkt GmbH
Redundant structure of the existing connection of three switch nodes as well as increasing the data rate to 10GE or 40GE.
The system structure of the passive CWDM-modules, as well as the very good specifications of the WDM-filters, are decisive for us and enable a successive network expansion with the high-quality CWDM-optics.
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Cooperation with the Pan Dacom Direkt team is always professional, uncomplicated and effective, starting with advice, planning, right through to technical implementation and support.
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Through direct contact with the German-speaking Pan Dacom Direkt R&D department, we have managed to gradually replace a discontinued system with a system developed by Pan Dacom Direkt.
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The SPEED-OTS 5000 convinced us with its individual and uninterruptible expandability, an optimal price-performance ratio and the reliable support from the German manufacturer.
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In connection with the service of Pan Dacom Direkt, we can offer our customers tailor-made services at attractive prices.
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Jörg Huber (Leiter IT-Systems, Bankhaus Metzler)
Thanks to the flexible and tailored interconnection of CWDM and DWDM modules, the SPEED-OTS 5000 system adapts to our network structure and our needs.
Harald Singer (IP-Technik, Teledata GmbH)
We are constantly expanding our cross-city data center coupling.Our long-term partner Pan Dacom Direkt supports us with great advice, quick feedback and short delivery times.
Rüdiger Kopf (Stadt Freiburg)
Use of the SPEED-OTS 5000 series to support 10Gbps Ethernet signals via DWDM.
Thorleif Wiik (Vorstand Technik)
