This group contains basic provisioning data for the Maintenance
Monitor Transmitter (MmTx). A MmTx represents a mono-
directional AAL1 Circuit Emulation Service. AAL1 CES attributes
in this group are essential information to the operator about the
AAL1 CES service that must be matched in the Aal1Ces component
that receives the monitored stream.
The check escape checks that only one instance of a
MaintenanceMonitorTx is linked to any one Lp.