Each type of port in WDM has its own class that models the specific alarm behavior seen at that point in the network. The port classes for each type of card are described in Port classes in the WDM object model . Some cards have a specific class associated with them (for example, Amplifier), while others use the Card class.

Table 1. Port classes in the WDM object model

Card Type

Class

Port Objects

Multiplexer

Card

MuxInOmsPort

MuxInOchPort

MuxOutOmsPort

Demultiplexer

Card

DemuxInOmsPort

DemuxOutOmsPort

DemuxOutOchPort

Transmit amplifier

Amplifier

AmpInOmsPort

AmpOutOtsPort

AmpInOscPort

Receive amplifier

Amplifier

AmpInOtsPort

AmpOutOmsPort

AmpOutOscPort

In-line amplifier

Amplifier

AmpInOtsPort

AmpOutOtsPort

AmpInOscPort

AmpOutOscPort

Transponder OCN (into OCH)

Transponder

TransponderInOcnPort

TransponderOutOchPort

Transponder (OCH into OCN)

Transponder

TransponderInOchPort

TransponderOutOcnPort

TransponderInFecPort
Note:

Port objects are only created in the Optical Transport Manager for WDM when the port is used by a link that is being managed. This means that the ports seen in the Topology Manager may be a subset of those on the actual equipment.