RAD Data comm LRS-24 operation manual Modules without Internal Agent

Chapter 4 Management via the CM-2 Module LRS-24Installation and Operation Manual

Modules without Internal Agent

The CM-2 module will store configuration data locally for modules where such data is provided by an external management function. Therefore, special arrangements are needed to enable the provision of the configuration parameters for each individual module:

•Power-up – upon power-up, the goal is to restore the last operational configuration automatically and reliably. For this purpose, the CM-2 module analyzes the configuration parameters stored in the local module, in the remote module connected in a link with the local module, and also its own configuration data associated with the module:

−If the parameters in the local and remote equipment are identical and valid (valid means that all the parameters are consistent and within the allowed ranges), these parameters are automatically copied to the CM-2 data base, and used as the operational parameters.

−If the parameters of the local and remote modules differ, or invalid parameters are detected in at least one of them, but valid parameters are stored in the CM-2 data base, these parameters are automatically downloaded to the equipment and used to determine the operational configuration after power-up.

−If the CM-2 module has been powered off, its configuration data is no longer considered valid. In this case the operator is prompted to reconfigure the equipment parameters.

•Replacement of CM-2 module – if a CM-2 module is plugged into

the procedure explained above is also used an operating system.

•Replacement of local module or remote equipment – the appropriate parameters are automatically downloaded from the CM-2 database. If the CM-2 database is not valid, the operator must determine the desired configuration.

4.2 Hardware Requirements

Terminal Characteristics

Any standard ASCII terminal (“dumb” terminal or personal computer emulating an ASCII terminal) equipped with an RS-232 communication interface can be used to perform the preliminary configuration and manage an LRS-24 equipped with the CM-2 module.

The software used to operate the supervision program is contained in the CM-2 module. Moreover, the CM-2 module stores all the configuration information generated or altered during the communication with the terminal: no information is stored in the terminal.

4-6 Hardware Requirements

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