Alcatel 1642 Edge Multiplexer
155-to-622-Mbit/s Alcatel OMSN for customer premises & public/private companies
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.
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
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
> Local and metropolitan rings
> Point-to-point links with intermediate
drop/insert and/or regeneration stations with the latest, future-safe optical pro-
> Always-on, mission-critical
communication
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-
COST-EFFECTIVE CPE FOR
MULTISERVICE OPTICAL ACCESS
The extension of SDH benefits to customer to-multipoint and shared-bandwidth ring
premises and business locations has become applications. The capability to map Ethernet
an established concept. Installation of com- flows into multiple SDH resources using
pact optical equipment (CPE) for leased-
line and public/private-company services to the survivability of the user data con-
medium and large businesses is a reality in nection in the event of a network failure.
many access networks. The benefits can be ISA-ES1 blades can be hosted in the
virtual concatenation dramatically boosts
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
Alcatel 1642 EM and enable carrier-class
Ethernet VPN and aggregation services
in the metro network.
Alcatel 1642 Edge Multiplexer — 155-to-622-Mbit/s Alcatel OMSN for customer premises & public/private companies
The system may be configured as an STM-1 add drop
multiplexer (ADM) with a termination capacity of up to
by the Alcatel 1642 EM, even in multivendor networks.
Whether in telecommunications-office environments or
112 x 2 Mb drop for metropolitan networks or as an STM-4 at enterprise locations, the Alcatel 1642 EM has the right
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
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.
Figure 2 - The Alcatel 1642 EMUS in Mission-Critical Communications
Public/Private Companies
Always-on Mission-Critical Communications
CPE/Metro Access
Ethernet
Metro Transport
Power Utility
Oil and Gas
E1
Voice
10/100
2Mbps
1642 EM
1642 EM
1642 EM
Corporate
Railway
FE/GE
SCADA
Data
OMSN
OMSN
Production
and Distribution
Control Systems
Airport
SONET/SDH
Highway/Underground
Government
Station
Line Side Signal
Post Telephone
34/45 Mbps
Cable and TV Broadcaster
Enterprise
1642 EM
OMSN
OMSN
Interlocking
Equipment
LAN/LAN-extension
MAN - WAN
Power
Generation
Video-
Video
Display
Panels
CCTV
Ticket
Terminal
conferencing Surveillance
CCTV
TPR
MUX
Meter
RTU
Emergency
Call Point
Telephony
Storage
Passenger Terminal
Bridge/Tunnel Highway
Office LAN
TV Studio
Substation
AL CAT EL >
3
Alcatel 1642 Edge Multiplexer — 155-to-622-Mbit/s Alcatel OMSN for customer premises & public/private companies
Equipment Protection
> -48 V DC power redundancy
¬ 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
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
Technical Summary
Applications
> NG-SDH multiservice CPE
Network Protection
> SNCP/I
> SNCP drop and continue
> MSP 1+1
> Collapsed single-node ring
interconnection
> Collapsed dual-node ring
interconnection
> 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
> Housekeeping: 3 inputs plus 1 output
> Auxiliary channels: EOW, 12 x RS232
Interfaces
Monitoring
> Performance monitoring according
to G.784, G.826, G.821
> Path overhead monitoring (POM)
on 100 percent VCs
> Ethernet performance monitoring
counters
> 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)
Power
> Station battery: -48 V DC, 220 V AC
> Power consumption: 40 W (typical)
Physical Dimensions
> Chassis size
Synchronization
¬ height: 88 mm
¬ width: 443 mm
¬ depth: 295 mm
> Installation options desktop:
wall-mount, ETSI rack
> 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
¬ 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
> Priority and quality (SSM)
synchronization algorithms
Environment
Connectivity
> 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
> 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
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
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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