Functional Description
....................................................................................................................................................................................................................................
System
The
Metropolis
®
ADM (Compact shelf) is a high-capacity intelligent
multiplexer and transport system that can multiplex EtherNET, PDH,
SONET and SDH bit rates to a higher level of 2.5 Gbps (STM-16).
Because of this wide range in capacity, this system is a useful element
in building efficient and flexible networks.
This very flexible product resulted from a great step forward in
technology. Owing to the high level of integration at circuit-pack
level, it is possible within one subrack to add/drop up to:
•
8
×
10/100 Base-T EtherNET LAN interface
•
252
×
1.5 Mbps
•
252
×
2 Mbps
•
48
×
34/45 Mbps
•
16
×
STM-1 electrical
•
20
×
STM-1 optical
•
7
×
STM-4 (including 2 line cards and 5 tributary cards)
•
2
×
STM-16
•
2
×
GbE LAN interface
The
Metropolis
®
ADM (Compact shelf) is a multiplexer and transport
system that multiplexes a broad range of plesiochronous and
synchronous signals into 2.5 Gbps (STM-16) or 620 Mbps (STM-4).
The method used to map the interface signals complies with the AU-4
mapping procedure specified by ITU-T. A special circuit pack is
available to support AU-3 (SONET) mapped signals and another
special interface (UNI) converts EtherNET signals into SDH virtual
containers.
The system can be used as an add/drop multiplexer, a terminal
multiplexer or a small IP switch. The system provides built-in
cross-connect facilities and flexible-interface circuit packs.
Local and remote management and control facilities are provided via
the Q interface and the F interface and the embedded communication
channels (DCC). The cross-connect circuit pack is the core of the
Metropolis
®
ADM (Compact shelf) system.
General information
....................................................................................................................................................................................................................................
365-312-761
Issue 1, May 2004
Lucent Technologies - Proprietary
See notice on first page
1 - 9
