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· 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
T
he 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
T
his 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,
64 x 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).
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