Alcatel Edge Multiplexer 1642 Manuel utilisateur
The Alcatel 1642 Edge Multiplexer (EM),
part of the Alcatel Optical Multiservice
Node (OMSN) family, is an ideal space-
saving, next generation multiservice
building block for customer premises and
business locations. It enables business,
residential and mission-critical communi-
cations in the metro network, providing
unmatched performance for its size.
The primary applications for the
Alcatel 1642 EM product are found in
the following areas:
> Delivery of QoS-based Ethernet and
TDM services to customer premises
and business locations
> Local and metropolitan rings
> Point-to-point links with intermediate
drop/insert and/or regeneration stations
> Always-on, mission-critical
communication
COST-EFFECTIVE CPE FOR
MULTISERVICE OPTICAL ACCESS
The extension of SDH benefits to customer
premises and business locations has become
an established concept. Installation of com-
pact optical equipment (CPE) for leased-
line and public/private-company services to
medium and large businesses is a reality in
many access networks. The benefits can be
summarized in the extensive end-to-end
path control and monitoring capabilities
offered by SDH networks. It is worthwhile
adopting SDH technology even for the
delivery of Ethernet services, bringing the
benefits of SDH to the transport of data
services. The variety of existing and future
interfaces and services can be easily mapped
into the SDH transport layer, adding the
reliability and flexibility of SDH transport
and providing a future-safe investment in
new services.
ETHERNET VPN SERVICES
AND LAN INTERCONNECTION
Data-aware features integrated into the
Alcatel OMSN family through integrated
service adapter (ISA) plug-in modules
fully address the technical requirements
of today’s service providers, as well as the
expected need to provide telecom operators
with the latest, future-safe optical pro-
visioning platforms.
The Alcatel 1642 EM features an
Ethernet/Fast Ethernet card for the
transport of reliable frame-based data
interconnections in point-to-point, point-
to-multipoint and shared-bandwidth ring
applications. The capability to map Ethernet
flows into multiple SDH resources using
virtual concatenation dramatically boosts
the survivability of the user data con-
nection in the event of a network failure.
ISA-ES1 blades can be hosted in the
Alcatel 1642 EM and enable carrier-class
Ethernet VPN and aggregation services
in the metro network.
The Alcatel 1642 EM is a multiservice CPE that highlights
Ethernet/Fast Ethernet ports with Layer 2 Ethernet switching
functions to enable both point-to-point (E-line) and multipoint
(E-LAN) Ethernet services.
Alcatel 1642 Edge Multiplexer
155-to-622-Mbit/s Alcatel OMSN for customer premises & public/private companies
Beyond mapping business and industrial Ethernet
flows onto SDH network resources through standardized
mechanisms such as GFP/LAPS, VCAT and LCAS (as
specified in ITU G.7041, ITU G.7042 and ITU G.707), the
ISA-ES1 series cards introduce wire-speed classification,
policing and scheduling capabilities on a carrier-class
Ethernet switching blade.
Per-customer traffic flow management with low band-
width granularity, traffic segregation and per-flow QoS
mechanisms are supported to enable service-oriented
Ethernet networking. Two different blade options are
available for the ISA-ES1 to meet the required capacity
and features, providing the best cost-optimized Ethernet
solution for different networking applications:
> ISA-ES1 3-port version, offering 2 x FE electrical plus
1 x FE optical ports on board, providing 155 Mb/s
backpanel capacity and featuring GFP, VCAT, LCAS,
VLAN/Q-in-Q with QoS support.
> ISA-ES1 8-port version, offering 8 x FE electrical ports
on board, with the same features as the 3-port version.
Through the integration of Ethernet-switching capability
on Alcatel 1642 EM Ethernet cards, not only point-to-
point, but also point-to-multipoint applications and shared-
bandwidth rings can be implemented. The resources
required to connect several customer and business sites
to provide Ethernet LAN interconnection services are
drastically reduced.
Network-infrastructures owner must manage and
transport new Ethernet-based revenue-generating value
added services (VAS) at the lowest cost per bit, especially
in the access network, where bandwidth is limited. The
shared-bandwidth ring allows sharing of bandwidth
between multiple users who are accessing the ring, using,
for example, only 1 x VC-3 on each link for Ethernet
traffic and leaving enough bandwidth for other revenue-
generating services.
The Alcatel 1642 EM’s Ethernet card gives service
providers and public/private companies an optimized
solution for providing Ethernet LAN interconnection
services with incremental investments, exploiting the
existing SDH infrastructure, thus avoiding the need to
deploy a new overlay infrastructure, ultimately reducing
both CAPEX and OPEX.
COMPACT, FLEXIBLE, DATA-ORIENTED, FUTURE-SAFE
The Alcatel 1642 EM is based on 2 x STM-1/4 (155 to
622 Mbit/s) line interfaces, up to 18 STM-1 equivalents
full non-blocking HO SDH matrix and 12 STM-1 equiva-
lents full non-blocking LO SDH matrix, clock reference
and equipment control functions, all concentrated in a
1-slot wide compact card.
The equipment’s shelf is physically formed in four
parts: a middle-lower area where a main control board
holds an STM-1/4 ADM, the upper part with up to four
upper tributary boards and the left and right parts
hosting the fan and power-access board.
Alcatel 1642 Edge Multiplexer — 155-to-622-Mbit/s Alcatel OMSN for customer premises & public/private companies
2<ALCATEL
Figure 1- Positioning the Alcatel 1642 Edge Multiplexer in the Network
Metro
Access
Metro
Edge
Metro Core/
Backbone
Metro
CPE
LAN-Extension
MAN
WAN
LAN
1642 EM
1642 EM 1642 EM
1642 EM 1642 EM 1642 EM
1642 EM
1642 EM
Telecom Operators
Service Provider
Public/Private
Companies
The system may be configured as an STM-1 add drop
multiplexer (ADM) with a termination capacity of up to
112 x 2 Mb drop for metropolitan networks or as an STM-4
multiservice terminal multiplexer with 2 x STM-1 and
8 x E/FE interfaces, used to link several large offices to
an enterprise network.
The Alcatel 1642 EM has a symmetrical architecture,
allowing its application as terminal multiplexer, add-drop
or mini cross-connect in spur, multiple rings or meshed
topologies. All traffic ports (PDH, Ethernet or SDH) of
the same type have the same functionality and behavior
and there is no inherent split between tributaries and
aggregates.
The Alcatel 1642 EM’s resiliency makes it ideal as a
multiservice transport node. In terms of hardware, the
Alcatel 1642 EM has a centralized control architecture
that limits the presence of processors and software to
the compact ADM-1/4 card. Traffic ports have no on-
board processors and may be reused from one piece of
equipment to another, or retrieved from stocks without
concern about software versions. The Alcatel 1642 EM
also offers local and remote software downloads. In addi-
tion, service providers can also monitor subnets formed
by the Alcatel 1642 EM, even in multivendor networks.
Whether in telecommunications-office environments or
at enterprise locations, the Alcatel 1642 EM has the right
powering solution (DC or AC) and optional power
redundancy can provide equipment protection.
Concerning traffic protection, sub-network connection
protection (SNCP) with drop-and-continue function is
provided for improved traffic availability, enabling the
Alcatel 1642 EM to be inserted directly into access rings
or to be connected to access rings via point-to-point,
unprotected or protected links. SNCP also enables end-
to-end protection of SDH paths. Dual hubbing to two
distinct central-office transport nodes is also possible,
e.g., via dual STM-4 uplinks.
The Alcatel 1642 EM paves the way to build unique
optical-network infrastructures, supporting optimized
transport and integrated networking functions for data
applications, such as new Ethernet VPN services.
The Alcatel OMSN family consolidates the vast expe-
rience gathered by Alcatel in optical-network architectures
through hundreds of thousands of installations world-
wide. That’s also where true reliability comes from.
Alcatel 1642 Edge Multiplexer — 155-to-622-Mbit/s Alcatel OMSN for customer premises & public/private companies
ALCATEL >3
Figure 2 - The Alcatel 1642 EMUS in Mission-Critical Communications
Public/Private Companies
TV StudioOffice LAN
SONET/SDH
Metro TransportCPE/Metro Access
MAN - WANLAN/LAN-extension
Always-on Mission-Critical Communications
E1
FE/GE
2Mbps
34/45 Mbps
Bridge/Tunnel HighwayPassenger Terminal Substation
Station
Production
and Distribution
Control Systems
Power
Generation
Line Side Signal
Post Telephone
Interlocking
Equipment
MUX
StorageTelephony
Video
Surveillance
CCTV
Emergency
Call Point
Display
Panels
Ticket
Terminal CCTV
Video-
conferencing
RTU
TPR
Meter
Voice
SCADA
Data
OMSN
OMSN
Power Utility
Oil and Gas
Railway
Airport
Highway/Underground
Government
Cable and TV Broadcaster
Enterprise
Corporate
OMSN
OMSN
Ethernet
10/100
1642 EM
1642 EM
1642 EM
1642 EM
Technical Summary
Applications
> NG-SDH multiservice CPE
> Terminal multiplexer, ADM, multiple
rings or meshed networks
> Multiservice metro-access context
> Stacked and subtended rings
> Private-line and Ethernet VPN services
> Single fiber working
Interfaces
> Network interfaces: Compact ADM
function with 2 x STM-1 or 2 x STM-4
(S/L)
> Customer interfaces (four slots
available each):
¬ 8/28/32 x 2 Mb/s (2 mm HM
interface/RJ45/120 ohm)
¬ 8 x 2 Mb/s retiming (coaxial
interface)
¬ 1 x 34/45 Mb/s
¬ 1 x STM-1 (electrical, S-1.1, L-1.1,
or L-1.2)
¬ Up to 8 x Ethernet 10/100
Base-TX/FX
Connectivity
> Up to 18 x 18 STM-1 equivalent full
non-blocking SDH fabric (HO) and
12 x 12 STM-1 equivalent full
non-blocking SDH fabric (LO) in all
configurations
> 6 x 6 STM-1 equivalent full non-
blocking SDH fabric (HO/LO) in
STM-1 configuration
> Unidirectional, bidirectional, broadcast
connections
> Line and VC loopbacks
> Ethernet over SDH with L2 networking
(e.g., VLAN/Q-in-Q) over mesh, rings,
spurs
Equipment Protection
> -48 V DC power redundancy
Network Protection
> SNCP/I
> SNCP drop and continue
> MSP 1+1
> Collapsed single-node ring
interconnection
> Collapsed dual-node ring
interconnection
Monitoring
> Performance monitoring according
to G.784, G.826, G.821
> Path overhead monitoring (POM)
on 100 percent VCs
> Ethernet performance monitoring
counters
Synchronization
> Internal oscillator ±4.6 ppm
> Holdover drift ±0.37 ppm per day
> External sources: STM-n/2 Mb/s
ports, 1 external 2 Mb/s
input/output
> Priority and quality (SSM)
synchronization algorithms
Data Blades (ISA)
> Ethernet Switch (ES1):
¬ 1Gb/s throughput
¬ 155 Mb/s backpanel capacity
> ES1 8-port version:
¬ 8 x Ethernet 10/100Base-TX/FX
> ES1 3-port version:
¬ 2 x Ethernet 10/100Base-T +
1 x Ethernet 10/100Base-FX
¬ GFP-F/LAPS, VCAT, LCAS
¬ VC-12/VC-3/VC-4 terminations
¬ VC groups (maximum 8 at
21/2/1)
¬ classification/forwarding per port
¬ MAC DA 802.3, C-VLAN/S-VLAN,
802.1p
¬ Ethernet multicast
¬ Q-in-Q (802.1Q/ad)
¬ QoS 802.1p; STP/RSPT
(802.1d/w/s)
¬ Ethernet performance counters per
port/aggregate/flow, incoming/
outgoing
¬ E-Line, E-LAN, Ethernet aggregation
services
Power
> Station battery: -48 V DC, 220 V AC
> Power consumption: 40 W (typical)
Physical Dimensions
> Chassis size
¬ height: 88 mm
¬ width: 443 mm
¬ depth: 295 mm
> Installation options desktop:
wall-mount, ETSI rack
Environment
> Operating conditions: ETS 300 019,
class 3.2
> Storage conditions: ETS 300 019,
class 1.2
> Transportation conditions: ETS 300
019, class 2.2
> ESD/EMC: ETSI EN300 386,
“Other than Telecommunications
Center” Class B
Operation
> CMISE craft terminal through RS232
at 38.4 kb/s
> Network management access through
QB3 interface or Qecc G.784
> Local and remote SW download
> Remote inventory
> Housekeeping: 3 inputs plus 1 output
> Auxiliary channels: EOW, 12 x RS232
Alcatel 1642 Edge Multiplexer — 155-to-622-Mbit/s Alcatel OMSN for customer premises & public/private companies
www.alcatel.com
Alcatel and the Alcatel logo are registered trademarks of Alcatel. All other trademarks are the property of their respective owners. Alcatel assumes no responsibility for the accuracy
of the information presented, which is subject to change without notice. © 12 2006 Alcatel. All rights reserved. 3CL 00469 0793 TQZZA Ed.03 21209
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