SIST ETS 300 347-2:1997/A1:1998

SIST ETS 300 347-2:1997/A1:1998 is the Slovene adoption of an ETSI amendment to the PICS proforma for the V5.2 interface at the digital Local Exchange (LE) for support of the Access Network (AN). It is used when an implementer needs to state, in a standard way, which V5.2 protocol features an equipment or system supports. The amendment corrects errors identified during and after the definition phase of TSS&TP for the V5.2 interface.

What does SIST ETS 300 347-2:1997/A1:1998 specify?

SIST ETS 300 347-2:1997/A1:1998 specifies amendments to the Protocol Implementation Conformance Statement (PICS) proforma for ETS 300 347-2 (1994). In practice, it updates the conformance questionnaire used to declare V5.2 protocol support, rather than redefining the interface itself.

The amendment is organized as a short foreword followed by targeted changes to clause 2, subclause 6.3, and the PICS tables in subclauses 6.5.2.3.5, 6.5.3.2.4, 6.6.2.3.4, and 6.6.3.2.4. Those locations matter because they show exactly where implementers must update their conformance statements.

The document focuses on one technical theme: port state alignment after interface startup. That means readers should look for the added PICS items tied to this behavior when checking whether an implementation supports the amended V5.2 procedures.

What are the key requirements of SIST ETS 300 347-2:1997/A1:1998?

SIST ETS 300 347-2:1997/A1:1998 mainly requires the PICS proforma to be updated so that implementations can declare support for the amended V5.2 behavior. The most important changes are the new capability items and the updated references that keep the conformance statement aligned with the amended interface specifications.

Updated references

Clause 2 replaces the normative references with the amended versions of ETS 300 324-1 and ETS 300 347-1. In practice, this keeps the PICS proforma tied to the correct base interface specifications.

Subclause 6.3 also updates the identification of the referenced protocol. That matters because a PICS statement must point to the exact protocol version it claims to cover.

New PICS items for port state alignment

Subclauses 6.5.2.3.5 and 6.6.2.3.4 add an item for Accelerated port state alignment. This gives implementers a place to declare whether their equipment supports the faster alignment behavior after startup.

Subclauses 6.5.3.2.4 and 6.6.3.2.4 add four related items for the Unblock all relevant ports sequence:

• request
• accepted
• rejected
• completed

In practice, these items let a vendor or test lab show how the implementation behaves when ports are brought into service after startup.

Conditional support logic

The added items are linked to the existing condition MX.1 and to reference 15.4.5 in the tables. That means the new questions are not standalone - they are tied to the conditions under which the capability is applicable. For readers, this tells you when you should answer the new PICS questions and when a response is not applicable.

What terms does SIST ETS 300 347-2:1997/A1:1998 define?

• LE - Digital Local Exchange, the exchange side of the V interface.
• AN - Access Network, the network connected to the LE through V5.2.
• V5.2 interface - The V interface variant covered by this standard family for supporting AN.
• PICS - Protocol Implementation Conformance Statement, the proforma used to declare supported protocol features.
• TSS&TP - The test suite structure and test purposes referenced as the phase during which errors were detected.
• MX.1 - A condition used in the PICS tables to control whether the new items apply.
• Accelerated port state alignment - A capability for aligning port states after startup more quickly.
• Unblock all relevant ports - The related request, response, rejection, and completion steps added to the PICS proforma.

Who uses SIST ETS 300 347-2:1997/A1:1998?

SIST ETS 300 347-2:1997/A1:1998 is used by telecom equipment vendors, network operators, conformance test labs, and engineers preparing implementation statements for V5.2 equipment. Quality managers and buyers use it when they need to check whether a product’s claimed V5.2 features match the standard’s PICS structure.

What changed in SIST ETS 300 347-2:1997/A1:1998 from the previous edition?

SIST ETS 300 347-2:1997/A1:1998 amends ETS 300 347-2 (1994). The stated changes are:

• editorial updates to the normative references in clause 2
• an updated protocol identification in subclause 6.3
• new PICS items for accelerated port state alignment
• new PICS items for the unblock-all-relevant-ports sequence

The amendment was created because ETS 300 324-1 and ETS 300 347-1 had also been amended.

Which standards are used with SIST ETS 300 347-2:1997/A1:1998?

• ETS 300 324-1 including amendment A1 - provides the V5.1 interface specification used as a normative reference.
• ETS 300 347-1 including amendment A1 - provides the V5.2 interface specification used as a normative reference and companion part.

What does the SIST ETS 300 347-2:1997/A1:1998 document contain?

The document contains amendment instructions rather than a full rewrite of the base standard. It gives the changed wording for clause 2 and subclause 6.3, and it shows the added PICS items in the affected tables.

It also records the transposition dates, the amendment history, and the fact that the standard was prepared by ETSI’s Signalling Protocols and Switching (SPS) Technical Committee. For implementers, the practical value is in the table updates that must be reflected in test plans and conformance declarations.