This chapter provides information for troubleshooting and repairing maintenance objects.

Each identifiable part in the system is considered a maintenance object (MO). A maintenance object can be:

• An individual media module

• A hardware component that is part of a media module

• Any software process

• Significant events

• Environmental controls

Each maintenance object has its own unique set of tests, error codes, and recovery strategy. Maintenance software logs inline errors reported by media modules, runs tests for error diagnosis and recovery, and raises and clears alarms.

Maintenance names are recorded in the Error and Alarm logs. Individual copies of an MO are assigned an address that defines the MO’s physical location in the system when applicable. These locations display as the port field in the Alarm and Error logs and as output of commands such as test board.

Communication Manager maintenance objects are displayed using the list configuration all or show mg list_config command.

list config all on the Communication Manager System Access Terminal (SAT) screen displays the Board Name (location), Board Type, Code, Vintage, and the assigned ports, if any, of all installed equipment in the system.

show mg list_config on the MGP displays information for the installed equipment in that gateway.