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Chapter 3:
Functional Overview
3.1
Network Management
ServiceOn Optical Element Managers achieve integrated network management
control via a Q interface. This allows the OMS 1200 to be managed alongside existing
Ericsson products. ServiceOn Access for fixed access radio networks also manages
the OMS 1240.
The network management information is carried over a DCC channel contained in the
SDH Section Overhead (SOH). The SOH also provides an auxiliary channel for the
transport of NM information for crossing Other Licensed Operator (OLO) networks.
NM information for third party IP-managed equipment can also be carried across the
SDH network by the IP Tunnelling feature.
The equipment management operations systems use Ericsson standard workstation
terminals for providing management and control of the element.
Software download is achieved from the LCT, or from the ServiceOn Optical Element
Managers.
3.2
Synchronisation
The following features are supported:
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For further details on synchronisation, refer to Chapter 6:.
221 02-ZAP 701 25/1 Rev C 2006-08-04
03PHB00004AAV-CUA
The OMS 1200 offers two modes of operation for synchronisation:
−
Single SETG clock
−
Equipment freerun.
SSMB enable/disable
Revertive/non–revertive selection
SSM quality assignment
SSMB overwrite on STM–n inputs/outputs
External output squelch on quality threshold
System clock and external output priority tables
External output type configuration (2Mbit/s with/without SSM, 2MHz,
1.5MHz)
STM–n line traffic.
Marconi OMS 1200
Technical Product Description
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