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4.2
Point to Point
Although intended as a solution for integration within an SDH network, the OMS 1240
can also be used for point-to-point systems. This configuration can be used to support
PDH/SDH rates such as 2Mbit/s leased lines, direct connection to PBXs and data.
4.3
Data Applications
4.3.1
Ethernet Private Line
Ethernet Private Line (EPL) is also known as Transparent LAN service. This
application is supported for 10/100M Ethernet signals. Based on multi-port Ethernet
interfaces more than one connection can be established from one end to the other.
Each packet arriving from end user LAN is mapped via GFP or Link Access Procedure
– SDH (LAPS) into SDH-leased line. The transfer capacity may be a fixed or flexible
leased line, resized via Link Capacity Adjustment Scheme (LCAS). For each
connection, one VC-group is used.
FastE, GbE
End
equipment
4.4
Network Management Channel Communications
Configuration
In general, across the product family all currently available SDH line and tributary port
interfaces support embedded communications channels (DDCm/DCCr).
See 4.4.1 and 4.4.2 for more detailed information on which communications channels
are supported by the various SDH Tributary cards available in the OMS 1200.
4.4.1
OMS 1240 Product
Legacy Quad STM-1 Optical/Electrical Card
•
•
221 02-ZAP 701 25/1 Rev C 2006-08-04
03PHB00004AAV-CUA
Figure 4-4: Ethernet Private Line
Underlying SDH protection
mechanisms retained
Mapping of Ethernet
into SDH using GFP-F
OMS 1200
Does not support F2 OLO comms over any of its STM-1 bearers
Can support comms over the conventional DCCr/DCCm channels (DCCr on
Ports 1 and 2, DCCm on Ports 3 and 4).
Technical Product Description
Flexible assignment of link bandwidth
(VC-x-nv )
SDH
Network
Flexible adjustment bandwidth -
in service, using LCAS
Traffic flow maintained on
failure of an SDH VC within the link
© Ericsson AB 2006
Commercial in confidence
Marconi OMS 1200
FastE, GbE,
End
equipment
45 (136)
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