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  ITU-T A.5 justification information for referenced document ETSI ES 203 215 V1.2.1 (2011-10) in draft L.1310
1. Clear description of the referenced document:
Name: ETSI ES 203 215 V1.2.1 (2011-10)
Title: Environmental Engineering (EE); Measurement Methods and Limits for Power Consumption in Broadband Telecommunication Networks Equipment ISDN User Part (ISUP); Signalling aspects of charging
2. Status of approval:
Normative
3. Justification for the specific reference:
To not duplicate measurement methodologies; this is the only source for this type of equipment.
4. Current information, if any, about IPR issues:
ETSI IPR information is available at http://www.etsi.org/
5. Other useful information describing the "Quality" of the document:
ETSI ES 203 215 V1.2.1 (2011-10) was published by ETSI in October 2011.
6. The degree of stability or maturity of the document:
ETSI Published.
7. Relationship with other existing or emerging documents:
Is the only currently published standard on this subject.
8. Any explicit references within that referenced document should also be listed:
[1] ETSI TS 101 388, "Access Terminals Transmission and Multiplexing (ATTM); Access transmission systems on metallic access cables; Asymmetric Digital Subscriber Line (ADSL) - European specific requirements (ITU-T Recommendation G.992.1 modified)";/
[2] ETSI EN 300 132-2, "Environmental Engineering (EE); Power supply interface at the input to telecommunications and datacom (ICT) equipment; Part 2: Operated by -48 V direct current (dc)";/
[3] ETSI TS 101 271 (V1.1.1), "Access Terminals Transmission and Multiplexing (ATTM); Access transmission system on metallic pairs; Very High Speed digital subscriber line system (VDSL2); [ITU-T Recommendation G.993.2 modified]";/
[4] IEC 60038 (Ed. 7.0), "IEC standard voltages";/
[5] ETSI ES 201 970, "Access and Terminals (AT); Public Switched Telephone Network (PSTN); Harmonized specification of physical and electrical characteristics at a 2-wire analogue presented Network Termination Point (NTP)";/
[6] ITU-T Recommendation G.984, "Gigabit-capable Passive Optical Networks (GPON)";/
[7] ITU-T Recommendation G.984.2, "Gigabit-capable Passive Optical Networks (G-PON): Physical Media Dependent (PMD) layer specification";/
[8] IEEE 802.3, "IEEE Standard for Information technology-Specific requirements -- Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications";/
[9] Broadband Forum TR-100, "ADSL2/ADSL2plus; Performance Test Plan";/
[10] Broadband Forum TR-114, "VDSL2 Performance Test Plan".
9. Qualification of ETSI:
ETSI is recognized under the provisions of ITU-T Recommendations A.5 and A.6. Qualifying information is on file at TSB.
10. Other (for any supplementary information):
None.
Note: This form is based on Recommendation ITU-T A.5