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Abstract

A computer implemented interface for interfacing an equipment controller to an equipment manager each arranged to respond to a reproduced text messages according to a first and second protocol, respectively. The interface comprises a number of program modules (502-514) which each receive one or more inputs and produce an output dependent on whether defined conditions are met by the inputs. A number of the outputs of the program modules constitute inputs to other program modules therefore defining a network. A number of the program modules (502-508) are of the type which is responsive to a predefined text in a respective field of an input message to produce an output to a further program module which is responsive to a further predefined text in another field which is valid in a first protocol in the context of the predefined text. The network of program modules produces a series of outputs which represent the information content of the original input message. These outputs are then passed to a further series of modules which format a translation of the input message. The defined conditions of the program modules are modifiable and in particular are modifiable in a manner which is dependent on the state of part of the equipment management system thereby providing an inherent model of the network management system for use during parsing of an input message.

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