·Support of SDH signals: STM- 0, STM-1, STM-4 & STM-16.
·Mixing of various payload types.
·In-shelf optical booster or booster/pre-amplifier.
·Remote maintenance and management by Lucent Technologies ITM network management system.
·Compact self-supporting single shelf design and easy installation.
·Duplication of critical circuit racks in the shelf.
APPLICATIONS
The WaveStar ADM 16/1 is a single product platform for
STM-16, STM-4 and STM-1 applications. Based on its flexibility with regard to interface units and cross-connect capabilities, the system supports applications for bandwidth access, service-on-demand and network protection.
The WaveStar ADM 16/1 can be applied in two tiers of the network: access & regional networks. The system allows for growth and changing service needs by supporting in-service conversions and upgrades. Inherent to its basic design, the WaveStar ADM 16/1 operates equally well within fully synchronous as well as asynchronous environments and provides a flexible link between the two.
The WaveStar ADM 16/1 supports a large variety of configurations for various network applications (see Figure 1):
·Terminal for point-to-point connections.
·Ring add/drop multiplexer or STM-4 and 16 rings.
·Access mux to DWDM, 10G, cross-connect & SONET.
·Hub mux of STM-1 and STM-4 rings to STM-16.
·Grooming of lower-order VCs.
·PDH front-end for digital cross- connect systems.
·Single ADM 16/1 for interconnection of STM-16, STM-4 and STM-1 rings (Ring Closure on tributary side).
·TransLAN-functionality for 10/100 BASE-T Ethernet signals.
Traffic can be protected by:
·Path protection: VC-n SNC/N.
·Section protection: - MS-SPRing, MSP.
·Dual Node Interconnection (DNI).
PRODUCT DESCRIPTION
This flexible product resulted from a big step forward in technology. Due to the high level of integration at the circuit pack level, it is possible to add/drop up
to 504 x E1/DS1, 48 x E3,
64x 10/100 BASE-T, 96 x DS3/STM-0, 32 x E4/STM-1/OC- 3 or 8 x STM-4/OC-12 using only one subrack. One rack with a height of 2400 and 2600 mm, can accommodate two subracks. The heart of the WaveStar ADM 16/1 system is the Cross- Connect, which has connections with all interface cards (see Figure 2). The Cross-Connect is the core of the system.
It enables the flexible routing of VC-4, VC-3 and VC-12 between:
·Aggregate and aggregate.
·Aggregate and tributary.
·Tributary and tributary.
To contribute to overall system reliability and availability, the Cross-Connect can be protected by an accompanying unit. If required, interface redundancy can be provided. The flexible design of the WaveStar ADM 16/1 makes it possible to place interface units in almost any interface slot position of the subrack. The System Controller (SC) unit controls all major functions of the WaveStar ADM 16/1 and communicates with the centralized management system (ITM). Communication is established via the Data Communication Channels within the STM-N section overhead signals or via one of the Q- interfaces of the system. The ITM-SC manages the WaveStar ADM 16/1 at the element level and the ITM-NM can manage the system at the network level. The ITM-Craft Interface Terminal (ITM-CIT) is used for managing small networks and for maintenance purposes.
The system is synchronized by an optionally duplicated Power and Timing generator circuit pack.
Both 2048-kHz and 2048-kbps synchronization interfaces are supported. References can be selected by and prioritized from among the synchronization interfaces, STM-N interfaces and 2-Mbps tributary interfaces. Reference protection is possible by enabling the ETS 300 417-6 compliant synchronization message protocol which uses the S1-byte information (SSM support).
