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.
Number of available C and L-Band Channels
Theoretically available DWDM channels in the C and L-band depending on the channel spacing
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.
Gunnar Jäger (Geschäftsführer, Diebold Nixdorf Portavis GmbH)
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.
Together we have reached another milestone in the expansion of telecommunications. The fiber optic networking via deep-sea cables and the active transmissions in combination with the 24/7 monitoring enable us to quickly network our locations.
High-speed network FAIR Tera Net for research relies on the WDM system from Pan Dacom Direkt GmbH
The Matterhorn Gotthard Bahn uses WDM technology "Made in Germany"
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.
Michael Philipp (Stellvertretender Direktor URZ)
Cooperation with the Pan Dacom Direkt team is always professional, uncomplicated and effective, starting with advice, planning, right through to technical implementation and support.
Frank Horst (Systemingenieur, ODN)
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.
Fritz Röttenbacher (Head of Purchasing)
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.
Fachhochschule Hannover University of Applied Science and Arts
The individual solution development, the attractive price and future expansions of the SPEED-OTS 5000 series from 4GFC were without hardware exchange
SWT trilan GmbH
In connection with the service of Pan Dacom Direkt, we can offer our customers tailor-made services at attractive prices.
Lothar Maximini (Leiter Übertragungstechnik)
The successful proof of concept of the Cisco Nexus series and the SPEED-OTS 5000 series convinced us.The system has been running stable for years now and exceeds our expectations regarding reliability.
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.