SIST EN 300 645 V1.2.1:2003

SIST EN 300 645 V1.2.1:2003 is the Slovenian adoption of ETSI EN 300 645 V1.2.1. It specifies an information model for managing SDH radio relay equipment at Q interfaces, so network element and management system implementers can use a common object-oriented view of the equipment.

What does SIST EN 300 645 V1.2.1:2003 specify?

SIST EN 300 645 V1.2.1:2003 defines the information model used between network elements and management systems for Radio Relay equipment that uses SDH multiplexing. The model is limited to the equipment-domain information visible at the element manager to element interface.

The document is organized as a short model specification:

• Clause 1 - Scope
• Clause 2 - References
• Clause 3 - Abbreviations
• Clause 4 - Object classes
• Clause 5 - Packages
• Clause 6 - Parameters
• Clause 7 - Name bindings
• Clause 8 - Attributes
• Clause 9 - Actions
• Bibliography
• History

The scope also makes clear what is outside the document: protocol stack, network-level management processes, application contexts, implementation conformance requirements, and information models for other systems or equipment. In practice, that means the document gives the management information view, not the communication protocol or compliance test rules.

What are the key requirements of SIST EN 300 645 V1.2.1:2003?

SIST EN 300 645 V1.2.1:2003 is mainly a definition of reusable managed object model elements. The key content is the set of object classes, packages, parameters, bindings, attributes, and one action that together describe how SDH radio relay equipment is represented in TMN management.

Clause 4 - Object classes

Clause 4 imports object classes such as radioSPITTP, sdhRadioProtectionGroup, sdhRadioProtectionUnit, msTcCTP, msTcTTP, au4HopcCTP, vc4HopcTTP, radioUnprotectedCTP, and radioProtectedTTP. In practice, these object types give equipment vendors and system integrators a shared structure for describing termination points, protection, and transport functions in the network element.

Clause 5 - Packages

Clause 5 imports packages including atpcPackage, radioSPIPackage, rxLOSNotificationPackage, demLOSNotificationPackage, txLOSNotificationPackage, modLOSNotificationPackage, exerciseOnOffPkg, singleExercisePkg, privilegedChannelPkg, and radioHoldOffTimePkg. These package names show which functional groups the model expects on a managed object, such as loss-of-signal notifications, exercise control, and radio protection behaviour.

Clause 6 - Parameters and Clause 8 - Attributes

Clause 6 imports radioProtectionStatusParameter, and Clause 8 imports attributes such as atpcImplemented, atpcEnabled, radioFrequency, hitless, radioHoldOffTime, rpsSummaryStatus, exerciseOn, privilegedChannel, radioProtectionStatus, radioUnprotectedCTPId, and radioProtectedTTPId. For users of the standard, these are the data items they read or configure when supervising radio operation, protection switching, and channel settings.

Clause 7 - Name bindings

Clause 7 imports name bindings that connect objects such as radioSPITTPSink-managedElement, radioSPITTPSource-managedElement, rsCTPSink-radioSPITTPSink, and augSource-msTcTTPSource. In practice, these bindings tell a management system where each object belongs in the object hierarchy and how related objects are linked.

Clause 9 - Actions

Clause 9 imports invokeRadioExercise. This is the management action used to start a radio exercise function from the Q interface model, so operators can trigger the function through the standard object model.

What terms does SIST EN 300 645 V1.2.1:2003 define?

• SDH (Synchronous Digital Hierarchy) - The multiplexing structure used by the radio relay equipment covered by the model.
• ISO (International Organisation for Standardisation) - The standardization body whose templates are used for the object-oriented description.
• Managed object class - A standard object type used to represent equipment or a function in the management model.
• Package - A named bundle of related behaviour and parameters imported into a managed object.
• Name binding - The rule that connects one object instance to another in the management hierarchy.
• Attribute - A named data item held by a managed object, such as frequency or protection status.
• Action - An operation that the management system can invoke on a managed object.

Who uses SIST EN 300 645 V1.2.1:2003?

SIST EN 300 645 V1.2.1:2003 is used by vendors of SDH radio relay equipment, network operators, TMN designers, and system integrators. They use it when defining the management view of network elements, building element managers, mapping equipment functions into managed objects, and aligning implementations with Q-interface management models.

It is also relevant for teams working on SDH transport networks and radio-relay systems, especially where protection, alarm reporting, and remote exercise functions must be represented consistently.

What changed in SIST EN 300 645 V1.2.1:2003 from the previous edition?

The scope states that the information model is revised to align ETS 300 645 with ITU-T Recommendation G.774.08. The document history lists V1.1.1 from May 1998 and the present V1.2.1 publication from October 1998.

Which standards are used with SIST EN 300 645 V1.2.1:2003?

• ITU-T Recommendation G.774 - The main reference for the SDH network element view information model.
• ITU-T Recommendation G.773 - Defines protocol suites for Q-interfaces used with transmission systems.
• ITU-T Recommendation M.3010 - Gives the principles for a telecommunications management network.
• ITU-T Recommendation M.3100 - Provides the generic network information model framework.
• ITU-T Recommendations Q.811 and Q.812 - Define lower and upper layer protocol profiles for Q3 and X interfaces.
• ITU-T Recommendations X.720 to X.722 - Define the structure of management information and guidelines for managed objects.
• ITU-T Recommendations X.730 to X.735 - Define common management functions such as object, state, alarm, event, and log control.
• ETS 300 304 - An earlier SDH information model for the network element view, listed in the bibliography.

What does the SIST EN 300 645 V1.2.1:2003 document contain?

The document is a compact object-model specification rather than a test or installation manual. It contains imported object classes, packages, parameters, name bindings, attributes, and one action, all expressed as the management model for SDH radio relay equipment.

The bibliography places the document in the wider TMN, SDH, and Q-interface standards family. The history section records the publication trail, which is useful when tracking versions used in procurement, design, or implementation documents.