{"id":"F2005B00461","name":"Telecommunications Technical Standard (Line Isolation Devices - ACA TS 025 - 1997)","slug":"telecommunications-technical-standard-line-isolation-devices-aca-ts-025-1997","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":31875,"registerId":"commonwealth-F2005B00461-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Title","sectionType":"part","heading":"Title","content":"# Title\n\n1. This Technical Standard may be cited as ACA TS 025 – 19971.\n\n\\[NOTE: This Standard takes effect on gazettal: see Telecommunications Act 1997 s. 376 (5).\\]","sortOrder":0},{"sectionNumber":"Definitions","sectionType":"part","heading":"Definitions","content":"# Definitions\n\n2. In this Standard:\n\n“ACA” means the Australian Communications Authority;\n\n“Airservices Australia equipment” means equipment or systems, other than those used for telephony, used by Airservices Australia for the purposes of air navigation;\n\n“LID” means Line Isolation Device, being customer equipment connected between Airservices Australia equipment and a telecommunications network;\n\n“the Act” means the Telecommunications Act 1997.","sortOrder":1},{"sectionNumber":"Standard for LIDs connected to a telecom","sectionType":"part","heading":"Standard for LIDs connected to a telecommunications network","content":"# Standard for LIDs connected to a telecommunications network\n\n3. For paragraphs 376 (2) (a), (b), (c) and (d) of the Act, the standard for interworking requirements for LIDs that facilitate isolation between:\n\n(a) Airservices Australia equipment; and\n\n(b) a telecommunications network;\n\nis the standard set out in the document known as “ACA TS 025 – 1997” approved by the ACA in the ACA meeting of 26 November 1997.","sortOrder":2},{"sectionNumber":"NOTE","sectionType":"part","heading":"NOTE","content":"## NOTE\n\n1. Notified in the Commonwealth of Australia Gazette on 1997.","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1320},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The standard maintains its original narrow technical scope regarding Line Isolation Devices for air navigation equipment. No evidence of scope expansion beyond the specific interworking requirements for LIDs connecting Airservices Australia equipment to telecommunications networks."},"complexity_factors":["Only 4 defined terms in the interpretation section","Single operative provision (section 3) incorporating external standard by reference","No conditional logic, exceptions, or nested provisions","Document is less than one page in length","Straightforward statutory reference to Telecommunications Act 1997 section 376"],"plain_english_summary":"**What this does:** This law sets technical safety rules for devices called Line Isolation Devices (LIDs). These are pieces of equipment that sit between Airservices Australia's air traffic control systems (like radar or navigation towers) and regular telephone networks.\n\n**Who it affects:** Mainly Airservices Australia (the government body managing air traffic), telecommunications companies, and manufacturers of these isolation devices.\n\n**Why it matters:** It ensures that when sensitive aviation safety equipment connects to public phone networks, there's proper electrical isolation. This prevents interference from the phone network disrupting critical air traffic control systems, keeping air travel safe.\n\n**How it works:** Rather than listing all the technical specifications directly in the law, it simply requires compliance with a technical document named \"ACA TS 025 – 1997\" that was approved in November 1997."}},"importantCases":[],"_links":{"self":"/api/acts/telecommunications-technical-standard-line-isolation-devices-aca-ts-025-1997","history":"/api/acts/telecommunications-technical-standard-line-isolation-devices-aca-ts-025-1997/history","analysis":"/api/acts/telecommunications-technical-standard-line-isolation-devices-aca-ts-025-1997/analysis","conflicts":"/api/acts/telecommunications-technical-standard-line-isolation-devices-aca-ts-025-1997/conflicts","importantCases":"/api/acts/telecommunications-technical-standard-line-isolation-devices-aca-ts-025-1997/important-cases","documents":"/api/acts/telecommunications-technical-standard-line-isolation-devices-aca-ts-025-1997/documents"}}