1Refer to the appropriate media module documentation for the correct MO name displayed in this field.
Common port media module maintenance is a set of common tests used by many media modules. The common portion of these circuit packs/media modules is the generic hardware that interfaces with the TDM bus. The XXX-BD designation is also used on SAT displays when reset board is entered with an empty circuit pack or media module slot, or with a circuit pack or media module type that is in conflict with the actual board type administered for that slot.
When any of the common port circuit packs or media modules are physically removed from the backplane, no alarm will be logged for approximately 11 minutes. In the case of the following, approximately 21 minutes will elapse before an alarm is logged:
MM712 Digital Line Media Module
MM717 Digital Line Media Module
MM720 BRI Media Module
MM722 BRI Media Module
IMM-DCP Integrated Digital Line Board
VMM-2BRI Integrated BRI Media Module
When a circuit pack or media module that has been removed is alarmed, the alarm type is minor and is classified as an on-board alarm. The time delay permits maintenance activity to be performed without triggering an additional alarm.
Alarms are logged against only those common port circuit packs or media modules on which ports have been administered. In a heavily loaded system, the interval between the removal of a common port circuit pack or media module and the logging of the alarm may be several minutes longer.
The following table lists the common circuit pack and media module maintenance objects:
