A variety of interfaces with speeds up to 10 Gbit/s can be installed on the same shelf. In a CWDM system, bidirectional transmission is accomplished by multiplexing up to 8 wavelengths in a single optical fiber. In a DWDM system, bidirectional transmission is accomplished by using two or more shelves to multiplex up to 32 wavelengths in a single optical fiber. Operating costs are lower because fewer optical fibers are required.
In a CWDM system, forward error correction is applied to 10 Gbit/s signal, achieving transmission of 80 km and more, without dispersion compensating fiber nor optical amplifires. In a DWDM system, optical amplifires are used for both transmission and reception, thereby achieving an optical budget of 33 dB for bidirectional transmission over a single optical fiber and 35 dB for unibidirectional transmission over two optical fibers.
The center unit has 21 universal slots on a 19-inch 3U shelf. Because a variety of cards can be installed regardless of interface type, design becomes more flexible and the number of choices for client configurations increases. Furthermore, since one shelf can hold multiple systems, the AMN6200 requires less space to install and there are fewer units that need to be maintained and managed.
Because pluggable optical modules are used in the transponder's client interface and the WDM interface, the client interface types and WDM wavelengths are easily changed in each transponder. This feature improves maintainability of the AMN6200 because the optical modules can be inserted and removed without replacing circuit cards.
The numerous client interfaces supported by the AMN6200 make a wide range of client configurations possible.
With the AMN6200, the number of accommodated channels can also be increased because an interface employing electrical multiplexing technology can be used.
An example is the 2 x GbE multiplexing interface, which can accommodate two GbE channels with a single transponder.
Available interfaces include the following:
The AMN6200 provides a variety of network configurations, including the star and linear bus configurations, that combine center units and local units, as well as point-to-point and ring configurations based on the center unit. Systems adjusted to geographical, infrastructure and traffic conditions can therefore be built, resulting in an efficient, optimal network environment.
The AMN6200 includes general purpose monitoring and maintenance interfaces, such as SNMP, Telnet and Web interfaces. The SNMP interface provides an environment for integrated management of network equipment. With the addition of a Web browser and Telnet for complete control to this capability, the AMN6200 creates a superb working environment featuring excellent maintainability and operability.
The inband remote monitoring function provided by the AMN6200 allows integrated monitoring of the state of all local units from the center unit while maintaining the transparency of the main signals. In addition, because a remote control feature for line management and the isolation of faults is provided, the AMN6200 management of network operations is highly efficient. Since a dedicated network is not needed for remote monitoring and control at each local unit installation location, a separate wavelength is also not required. Maintenance and operating costs are reduced.
As a transmission line redundancy system for accommodated client lines, the AMN6200 supports a 1+1 protection function based on an optical switch. When a fault occurs, the working system is automatically switched to the protection system within 50 milliseconds. A redundant configuration can be set up for each accommodated client line so that lines meeting separate service levels can be provided. This AMN6200 feature creates a highly stable network environment that has top-notch reliability.
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