System for Constructing Metro Networks
24, 2017 – (JCN Newswire) – NEC Corporation (TSE: 6701) today announced the
addition of a compact model to its SpectralWave DW7000 series of converged
packet optical transport systems for ultra-high-speed optical transmission that
can be used to construct urban high-capacity networks (metro networks).
This new model makes it possible for the basic functions necessary for the
ring-type connection configuration widely used in metro networks to be mounted
on a 6U shelf, which is less than half the size of that conventionally used for
mounting(1). It is also possible to mount individual functions on a 3U shelf. An
ODU-AGR card equipped with GbE, SDH, SAN, and other(2) interfaces used for 100
Gigabit Ethernet (100GbE), 10GbE, and existing network services will also be
offered as an option. By utilizing this card, users will be able to construct
new metro networks and accommodate existing services such as enterprise network
services, thereby contributing to improved operational efficiency of network
infrastructure and reductions in capital investment.
Furthermore, thanks to integration using the latest digital signal processor
(DSP)(3), NEC was able to reduce the size of the transponder for sending and
receiving optical signals to one-fourth that of conventional transponders, as
well as decrease power consumption by approximately 38%, achieve approximately
1.4 times the transmission distance, and deliver a maximum transmission
capacity of 25.6 Tbps per fiber.
“Network infrastructure supporting 5G, the next generation of wireless
communications networks, needs to be capable of accommodating high-capacity,
advanced services and existing network services, as well as reducing capital
investment,” said Takehiko Toyohara, General Manager, Converged Network
Division, NEC Corporation. “Since this new product comes equipped with a
variety of interfaces enabling the construction of metro networks and the
accommodation of existing network services with a compact device, users can
boost the operational efficiency of their network infrastructure and bring down
NEC plans to showcase this compact converged packet optical transport system at
Mobile World Congress (MWC), which is scheduled to be held in Barcelona, Spain
from February 27 to March 2, 2017.
(1) According to NEC research as of February 24, 2017. Based on comparison with
the DW7000 model for core networks.
(2) Ethernet, SDH, SONET and OTN.
Optional support for SAN, InfiniBand, CPRI, Video, and PDH is available.
(3) Utilizing some of the research results obtained through two R&D
initiatives commissioned by Japan’s Ministry of Internal Affairs and Communications
(i.e., “Research and Development of Ultra-High-Speed and
Low-Power-Consumption Network Technologies” and “Research and
Development of Next-Generation Optical Network Technologies Supporting the
Distribution of Big Data”).