1、 ETSI TS 103 161-14 V1.1.1 (2011-04)Technical Specification Access, Terminals, Transmission and Multiplexing (ATTM);Integrated Broadband Cable and Television Networks; IPCablecom 1.5;Part 14: Embedded MTA Analog Interface and Powering SpecificationETSI ETSI TS 103 161-14 V1.1.1 (2011-04)2Reference D
2、TS/ATTM-003011-14 Keywords access, broadband, cable, IP, multimedia, PSTN ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06)
3、N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference
4、 version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change o
5、f status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Not
6、ification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2011. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the E
7、TSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. LTE is a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3GPP Organiza
8、tional Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 103 161-14 V1.1.1 (2011-04)3Contents Intellectual Property Rights 5g3Foreword . 5g31 Scope 7g32 References 7g32.1 Normative references . 8g32.2 Informative references 9g33 Definitions and
9、abbreviations . 9g33.1 Definitions 9g33.2 Abbreviations . 9g34 Void 10g35 Introduction 10g35.1 IPCablecom Overview . 10g35.2 Service Goals 10g35.3 IPCablecom Reference Architecture 11g35.3.1 Multimedia Terminal Adapter (MTA) 11g36 E-MTA Monitoring Requirements . 12g36.1 E-MTA Alarms 12g36.1.1 CM Fai
10、lures 12g36.1.2 MTA Failures 13g36.2 E-MTA Telemetry 13g36.2.1 Telemetry Signals (External Interface) . 13g36.2.1.1 Telemetry Signal 1 - AC Fail 13g36.2.1.2 Telemetry Signal 2 - Replace Battery . 14g36.2.1.3 Telemetry Signal 3 - Battery Missing . 14g36.2.1.4 Telemetry Signal - Battery Low 14g36.2.2
11、OSS Event Reporting 14g37 E-MTA Power Requirements . 14g37.1 Power Considerations . 14g37.2 Typical E-MTA Traffic Model . 15g37.3 Power Passing Tap Limitations 15g37.4 Average Power Calculations 15g37.5 Power Factor Considerations 16g37.6 E-MTA Average Power Requirements. 16g37.7 Service Requirement
12、s Under AC Fail Conditions 16g37.8 Power Source Compatibility. 16g37.9 Network Powering 16g37.9.1 Centre Conductor Delivery . 16g37.9.2 Composite Pair Delivery . 17g37.9.3 Network Power Characteristics . 17g37.10 Local Powering with Battery Backup . 17g37.10.1 E-MTA to UPS Interface 17g37.10.1.1 Phy
13、sical Connection 17g37.10.1.2 Power Signals (External UPS) 17g38 MTA Analog Port Requirements . 18g38.1 Loop Start Signalling 18g38.1.1 DC Supervisory Range . 18g38.1.2 Idle State Voltage . 18g38.1.3 Loop Closure Detection 19g38.1.4 Loop Open Detection 19g38.1.5 Off-Hook Delay 19g38.1.6 On-Hook Dela
14、y . 19g3ETSI ETSI TS 103 161-14 V1.1.1 (2011-04)48.1.7 Ringsplash. 19g38.1.8 Distinctive Ringing . 19g38.1.9 Transmission Path . 20g38.2 General Supervision . 20g38.2.1 Off-Hook Loop Current 20g38.2.2 Immunity to Line Crosses . 20g38.2.3 System Generated Open Intervals . 20g38.2.4 Open Switching Int
15、erval Distortion 20g38.2.5 Dial Pulsing 20g38.2.6 DTMF Signalling 21g38.2.7 Dialtone Removal . 21g38.3 General Ringing . 21g38.3.1 Alerting Signals 21g38.3.2 Ringing Delay. 21g38.3.3 Ringing Source . 21g38.3.4 Ringing Capability 22g38.3.5 Ringing Capacity 22g38.3.6 Ring Trip. 22g38.3.7 Ring Trip Rep
16、orting Delay . 22g38.3.8 Ring Trip Immunity 22g38.4 Voice Grade Analog Transmission 22g38.4.1 Input Impedance . 23g38.4.2 Hybrid Balance . 23g38.4.3 Longitudinal Balance 23g38.4.4 MTA Loss. 23g38.4.5 MTA Loss Tolerance 23g38.4.6 Frequency Response . 24g38.4.7 60 Hz Loss 24g38.4.8 Amplitude Tracking
17、24g38.4.9 Overload Compression . 24g38.4.10 Idle Channel Noise 24g38.4.11 Signal to Distortion . 24g38.4.12 Impulse Noise . 25g38.4.13 Intermodulation Distortion . 25g38.4.14 Single Frequency Distortion . 25g38.4.15 Generated Tones . 25g38.4.16 Peak-to-Average Ratio 25g38.4.17 Channel Crosstalk . 25
18、g3History 26g3ETSI ETSI TS 103 161-14 V1.1.1 (2011-04)5Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and
19、can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pur
20、suant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present do
21、cument. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee Access, Terminals, Transmission and Multiplexing (ATTM). The present document is part 14 of a multi-part deliverable covering Access, Terminals, Transmission and Multiplexing (ATTM); Integrated Broadband
22、 Cable and Television Networks; IPCablecom 1.5, as identified below: Part 1: “Overview“; Part 2: “Architectural framework for the delivery of time critical services over cable Television networks using cable modems“; Part 3: “Audio Codec Requirements for the Provision of Bi-Directional Audio Service
23、 over Cable Television Networks using Cable Modems“; Part 4: “Network Call Signalling Protocol“; Part 5: “Dynamic Quality of Service for the Provision of Real Time Services over Cable Television Networks using Cable Modems“; Part 6: “Event Message Specification“; Part 7: “Media Terminal Adapter (MTA
24、) Management Information Base (MIB)“; Part 8: “Network Call Signalling (NCS) MIB Requirements“; Part 9: “Security“; Part 10: “Management Information Base (MIB) Framework“; Part 11: “Media Terminal Adapter (MTA) device provisioning“; Part 12: “Management Event Mechanism“; Part 13: “Trunking Gateway C
25、ontrol Protocol - MGCP option“; Part 14: “Embedded MTA Analog Interface and Powering Specification“; Part 15 “Analog Trunking for PBX Specification“; Part 16: “Signalling for Call Management Server“; Part 17: “CMS Subscriber Provisioning Specification“; Part 18: “Media Terminal Adapter Extension MIB
26、“; Part 19: “IPCablecom Audio Server Protocol Specification - MGCP option“; Part 20: “Management Event MIB Specification“; ETSI ETSI TS 103 161-14 V1.1.1 (2011-04)6Part 21: “Signalling Extension MIB Specification“. NOTE 1: Additional parts may be proposed and will be added to the list in future vers
27、ions. NOTE 2: The choice of a multi-part format for this deliverable is to facilitate maintenance and future enhancements. ETSI ETSI TS 103 161-14 V1.1.1 (2011-04)71 Scope The present document defines the embedded MTA (E-MTA) requirements for the analog interface and for powering of the E-MTA. An em
28、bedded MTA is a DOCSIS cable modem (CM) integrated with an IPCablecom multimedia terminal adapter (MTA). The purpose of the present document is to define a set of requirements that will enable a service that is sufficiently reliable to meet an assumed consumer expectation of essentially constant ava
29、ilability, including, specifically, availability during power failure at the customers premises, and (assuming the service is used to connect to the PSTN), access to emergency services (911, etc.). The present document covers requirements for the E-MTA analog interface and for powering of the E-MTA.
30、 It is the intention of the present document to address requirements only for the E-MTA. See clause 5.3.1 for a complete description of the E-MTA. To enable a service that meets the assumed customer expectations described in clause 1.1, three E-MTA interfaces have been identified: 1) powering the E-
31、MTA; 2) telemetry support; and 3) the analog POTS interface. Powering the E-MTA is critical for the service to function during periods when utility power fails. Consequently, the power consumption characteristics of the E-MTA will enable service providers to offer alternate powering techniques. Tele
32、metry support enables the service provider to remotely monitor the status of the E-MTA. The first application of telemetry enables remote monitoring of the E-MTA power source. The analog POTS interface requirements ensure that CPE that meets telephone industry interoperability requirements (normal t
33、elephones, answering machines, etc.) will also operate in the IPCablecom environment. NOTE 1: The voice-grade analog transmission requirements are dependent on the compression algorithm utilized to transport the packetized voice signal in the IPCablecom architecture. These requirements are derived f
34、rom existing PSTN requirements that are based on a full 64 kbps voice channel. Therefore, the requirements specified are relevant only for the G.711 audio codec. Other audio codec compression algorithms specified by IPCablecom 2 are not addressed in the present document. NOTE 2: The telemetry interf
35、ace specified in the present document is between the E-MTA and an external local un-interruptible power supply (UPS). The UPS itself is not within the scope of the present document, so specific requirements for the UPS are not included here. Nonetheless, requirements for the E-MTA telemetry interfac
36、e may have certain design implications on the UPS. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
37、reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot gu
38、arantee their long term validity. ETSI ETSI TS 103 161-14 V1.1.1 (2011-04)82.1 Normative references The following referenced documents are necessary for the application of the present document. 1 PKT-SP-NCS1.5-I03-070412: “PacketCable 1.5 Specifications; Network-Based Call Signaling Protocol“, April
39、 12, 2007, Cable Television Laboratories, Inc. 2 ETSI TS 103 161-3: “Access, Terminals, Transmission and Multiplexing (ATTM) Integrated Broadband Cable and Television Networks; IPCablecom 1.5; Part 3: Audio Codec Requirements for the Provision of Bi-Directional Audio Service over Cable Television Ne
40、tworks using Cable Modems“. 3 ETSI ES 201 488-2: “Access and Terminals (AT); Data Over Cable Systems; Part 2: Radio Frequency Interface Specification“. 4 ANSI/SCTE 23-3 2005: “DOCSIS 1.1 Part 3: Operations Support System Interface“. 5 Telcordia (Bellcore) GR-499-CORE, Issue 2, December 1998: “Transp
41、ort Systems Generic Requirements (TSGR): Common Requirements“. 6 Telcordia GR-303: “Integrated Digital Loop Carrier System Generic Requirements, Objectives, and Interface“. NOTE: Available at http:/ 7 Telcordia GR-1089-CORE: “Generic Requirements for Electronic Equipment Cabinets, Electromagnetic Co
42、mpatibility and Electrical Safety Generic Criteria for Network Telecommunications Equipment“. NOTE: Available at http:/telecom- and 2) network powering. Local power refers to utilizing the subscribers home AC utility power as the supply for the E-MTA. A battery backup is utilized when the utility po
43、wer fails. Network power refers to utilizing power supplied by the service provider via their HFC cable network. A key consideration in HFC power system design is maintaining power to the E-MTA even when local AC power has failed. In general, the power system should provide a E-MTA with sufficient b
44、ackup power (to accommodate typical power outages) for a typical E-MTA traffic model. This creates constraints on power consumption for locally powered systems that provide battery backup. A E-MTAs average power consumption directly affects the size and cost of the backup batteries. Although network
45、 power centralizes backup power reserves, E-MTA power consumption nevertheless directly affects the cost and size of a power node. In addition, in network-powered systems, other conditions exist that limit the amount of power that can be delivered to an E-MTA (e.g. a coaxial power passing tap). ETSI
46、 ETSI TS 103 161-14 V1.1.1 (2011-04)157.2 Typical E-MTA Traffic Model A projected “typical“ E-MTA traffic model has been developed based on 9 and i.3 and input from member operators. As the IPCablecom architecture is actually deployed in the field, and as consumer demand for services using that arch
47、itecture continues to evolve, individual operators with actual IPCablecom implementations may experience significantly different traffic characteristics. With this qualification, this model may be used to calculate long term average power. Table 1: E-MTA Traffic Model Line Number MTA Line 1 MTA Line
48、 2 MTA Line 3 MTA Line 4 Cable Modem Data Assumed Use Voice Modem/Voice Voice/Fax Voice High Speed Data CCS 4 4 2 2 4 Line Penetration (Normalized by Penetration) 100 % 80 % 50 % 25 % 25 % Average Ringing Period 14 sec 14 sec 14 sec 14 sec n/a Average call length E-MTA w/o Data Service E-MTA with Da
49、ta Service 5 min 5 min 26 min 5 min 5 min 5 min 5 min 5 min n/a n/a Average Data Rate to Subscriber* n/a n/a n/a n/a 100 kb/s Average Data Rate From Subscriber* n/a n/a n/a n/a 10 kb/s The average cable modem data rates shown in column 5 of table 1 assume that when a user is active on the system (i.e. 4CCS), the user is interpreting or typing information during 90 % of the active session, and no significant data is flowing through t
