| Transmode Systems AB, a leading Swedish supplier of transmission equipment for fibre optic networks, has recently delivered Coarse Wavelength Division Multiplexing (CWDM) systems to SL Infrateknik, the network owner of the Stockholm Underground, who is building a network that will connect all the underground stations and key centres in the Stockholm public transport network. 115 underground stations and train stations will be connected to the network. It will be used for data communication between the stations, but will also transport traffic from video surveillance and the speaker system as well as IP telephony traffic. �The network that SL is building is a modern and flexible one that imposes high requirements on the transmission equipment. It is these kind of customers that can really enjoy all the benefits of our CWDM solutions. Owing to the flexibility and transparency in our system, we could offer a very attractive and future proof solution�, commented Mr Johan Gr�nlund, Area Sales Manager at Transmode Systems.
Transmode�s products are based on CWDM, a technology for sending multiple channels over a single fibre. The technology is a further development from the more traditional DWDM technology (Dense Wavelength Division Multiplexing) and enables more flexible, robust and above all more cost effective networks. �The network we are investing in will be used to improve the information to our passengers even further and to increase security on our platforms. To be able to offer correct information and high security is very important for us�, says Lars-Gunnar Sj�crona, manager of the IT-department at SL Infrateknik.
Transmode Systems AB is a CWDM pioneer, with expertise in datacom and telecom networking, optical technologies and network management systems. Since 2000, the company has focused on CWDM as a key optical technology to fully exploit the existing networking protocols. Transmode has been shipping CWDM systems since March 2001 and today has customers on the European, US and Asian markets.
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