Hardware overview of the Metropolis
®
AMU
Introduction
...................................................................................................................................................................................................................................
The Metropolis
®
AMU is a high capacity, flexible and cost-effective wideband
multiplexer which can multiplex standard PDH and SDH bit rates as well as Ethernet
signals to line transport rates. The Metropolis
®
AMU is a compact SDH Multiplexer,
enabling cost-effective STM-1, STM-4, and STM-16 Add/Drop Multiplexer solutions.
Several mechanical variants are defined to target specific applications. One set of
boards is used across the various mechanical configurations of the Metropolis
®
AMU.
Its space-efficient design allows for vertical (2m/4o and 1m/1o version) or horizontal
(1m/1o version) installation within controlled environment locations (interior ETSI and
19” racks). Note that the 2m/4o and 1m/1o versions and all the option cards used in
these versions support hot pluggable card insertion. The 2m/4o configuration allows the
placement of two systems side-by-side in a 19-inch or ETSI rack. The 1m/1o
configuration allows the placement of up to 5 systems side-by-side. Please refer to the
Metropolis
®
AMU Installation Guide for details.
2m/4o version
The Metropolis
®
AMU 2m/4o version has 6 slots (2x main and 4x tributary) and is
optimized for high capacity and protected Central Office applications. The first and
second main units can be plugged into the two main slots that are provided with a
2m/4o configuration. Note that when a single main unit is used, it must be plugged
into the Main-1 slot. In the Metropolis
®
AMU 2m/4o configuration, a second main
card can be fitted for high-availability configurations or to increase the capacity for
STM line interfaces. Most of the existing Metropolis
®
AMU option boards can be
fitted via an adapter card, which occupies two tributary slots.
Start-up configuration - 1m/1o version
The Metropolis
®
AMU 1m/1o version has 2 slots (1x main and 1x tributary) and is
targeted for CPE and unprotected applications. The main unit can be plugged into the
main slot of a 1m/1o configuration.
MAIN-1
MAIN-2
TRIB-1
TRIB-2
TRIB-3
TRIB-4
Product description
...................................................................................................................................................................................................................................
2-2
Lucent Technologies - Proprietary
See notice on first page
365-312-847R4.0
Issue 4, November 2006