AUSTRALIA: GENERAL REQUIREMENTS FOR SYNCHRONOUS DIGITAL HIERARCHICAL INTERFACES The following notification is being circulated in accordance with Article 10.6. G/TBT/Notif.97.74 dated 10 March 1997. 1. Member to Agreement notifying: AUSTRALIA. If applicable, name of local government involved (Articles 3.2 and 7.2). 2. Agency responsible: AUSTEL (Australian Telecommunications Authority). Agency or authority designated to handle comments regarding the notification can be indicated if different from above. 3. Notified under Article 2.9.2. 4. Products covered (HS or CCCN where applicable, otherwise national tariff heading. ICS numbers may be provided in addition, where applicable): Customer equipment connected to synchronous digital hierarchical interfaces. 5. Title, number of pages and language(s) of the notified document: TS 026: "General Requirements for Synchronous Digital Hierarchical Interfaces." (24 Pages, in English). 6. Description of content: This technical standard relates to customer equipment (CE). It defines the technical conditions and requirements for integrity and safe operation that privately owned, installed and maintained CE will meet for connection to a telecommunications service having SDH interfaces at STM-1 and STM-4 levels. 7. Objective and rationale: Technical regulation consistent with Part 21 of the Telecommunications Bill 1996. 8. Relevant documents: Listed in reference section of standard. 9. Proposed date of adoption: Mid 1997. Proposed date of entry into force: Mid 1997. 10. Final date for comments: 3 May 1997. 11. Texts available from: National enquiry point or address and telefax number of: National Sales Centre Standards Australia, P.O. Box 1055, Strathfield NSW 2135FACSIMILE: +61 2 9746 3333 Australiatelephone: +61 2 9746 4600. (0098)

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