Currently, high-speed large-capacity DWDM system in the major
Telecommunications Business operators, the new backbone transmission network used more and more common, the improvement of network bandwidth for the transmission play an important role, especially in applications around the start of a number of DWDM technology innovation,
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Package Including IP OverDWDM technologies mature, DWDM metro applications with the conditions and other factors, to DWDM market prospects brighter.
Called DWDM, optical fiber transmission spectrum is to be divided into a large number of non-overlapping wavelengths, each of wavelengths are supporting a high-speed
Communicate Channel. DWDM capacity of today's business applications are Gb / s level, while the 40Gb / s systems have achieved commercial rate. By DWDM, single fiber may have multiple transmission channels, each channel can have different rates and in different formats. Thus, DWDM provides
Service Is not only a high-speed, but also flexible. Currently, DWDM in commercial applications is a single fiber channel can be multiplexed 80-160 months, the world's several major manufacturers have announced
Cloth Single fiber multiplexing 160 channels have been commercially available. Therefore, the current capacity of a single fiber has been up to Tb / s order of magnitude. Therefore, we can predict based on DWDM optical transmission backbone network will be the primary means. Moreover, DWDM in the MAN will be applied, primarily because of the short distance from metro, the requirements for the device is relatively low, making the cost of DWDM decreased significantly, while providing DWDM-based and transparent wavelength services can be flexible transmit signals in any format to meet the MAN business variety and flexibility requirements.
In addition, IP Over DWDM technology has been rapid development in the forthcoming high-speed routing
Switch DWDM technology combined with the optimization of production IP
Optical Network ? Optical Internet. To carry through an optical Internet IP will be one of the most suitable for development. Mainly due to the IP backbone
Router And DWDM wavelengths directly connected to high-speed IP network can reduce the control and management complexity. IP OverDWDM to select the optical wavelength routing networks, with the transmission rate, data format and modulation transparent and compatible with existing communications networks, there are scalability and reconfigurability and other advantages.
It is understood, SCNB as Siemens Fixed-line products in China, the main force in DWDM equally uphold the solid strength of Siemens, its DWDM optical networking products in China have played an important role. Currently, SCNB of DWDM products SUR
PA SShiT7500 automated DWDM transport platform has been in the global optical communications network in a large number of applications received by the customer recognition.
SURPASS hiT7500 are forward-looking optimization of DWDM transmission platform for the establishment of a regional high-capacity, long distance and long distance (ULH) network. Platform for each channel transmission of up to 10Gbit / s, has been well extended to 40Gbit / s channel capacity to prepare, so do not need to invest capital to build other platforms for different applications. System constituted by a number of network elements, including: optical transmission terminal (OTT), optical line repeaters (OLR), Optical plug
Multiplexer (OADM) and optical communication unit, to provide multiplexing of the wavelength converter modules. In addition, the system comes with optical protection card; support the complex network elements, such as OTTC (a network element contains a wavelength converter and transfer terminals). The platform has a variety of capacities and performance standards to meet the various needs, such as: 160 channels, up to 3,000 km, speed up to 10 Gbit / s; 100% OADM can be upgraded to all-optical cross-cutting machine for fiber-optic networks; comprehensive fiber performance
Monitor , Fast pre-emphasis and link control techniques, using the integrated optical properties
Analyzer Upgrade to channel; optional Raman
Amplifiers And EDFA Pump Pu upgrade; tunable wavelength converter including a full C and L band (80 wavelengths), to provide transparent end to end quickly reduce the spare parts business and investment; the most advanced band FEC / EFEC technology to effectively improve the system performance; reference G .709 subnet through the supply end to end multi-vendor wavelength.
SURPASS hiT 7500DWDM platform, a lot of functions in terms of network managers have more choices. Platform
General Feature can save Staff training Time and cost, network operators can simplify and reduce the variety of spare parts. The modular characteristics of the system can be optimized network solutions needed to reduce the number of network elements, thereby reducing the CA
PE X and OPEX. DWDM platform for forward-looking, the system is well handle 40Gbit / s / channel capacity of the preparation. The system footprint is small, can save operating costs. Meanwhile, SURPASShiT 7500 can be customized for different applications, thereby reducing the investment in DWDM technology.
SURPASS hiT 7500DWDM platform is 100% OADM technology, transparent optical network can reduce the cost of electrical regeneration, and remote configuration 100% OADM can change the direction of data flow through minimal user input to meet business needs. This technology uses a highly automated system OPA can quickly upgrade the new business, cost savings in OPEX. Remote software downloads can be SURPASShiT 7500 version of the upgrade without affecting normal operation. Support 10Gbit / s wavelength converters and repeaters, as well as 10 Gbit / s wavelength converters and multiplexers for 2.5Gbit / s rate of business integration. And support for all common protection mechanisms.
SURPASS hiT7500 support a variety of network structure (point to point, ring and mesh), and allows various types of business through the wavelength conversion in DWDM layer adaptation. It is an optical fiber, multiplexing multiple wavelengths (up to 160 waves), and the composite signal light amplification. It is because of SURPASShiT 7500 platform has a high degree of system flexibility, so it is suitable for regional link (500-800km) and ULH links (3,000 km) of low-cost platform that can run well to meet the operators using a variety of link length of the various needs of the network.
SURPASS hiT 7500DWDM platform for many new features, such as using multi-wavelength band stop filter based on a flexible 100% OADM, and thus does not require direct access to the upper and lower wavelength pre-planning; the introduction of 100% OADM concept, the future network can expand to a transparent optical network node (photonic switching systems); platform is built using OPA technology-enhanced optical performance monitoring, optical power measurements in accordance with pre-emphasis and support for fast link control, automatic operation channel control and fast upgrade; based IEEE802.3ae standard, 10 Gbit / s wavelength converter support STM64/OC-
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