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xDSL and optical network access family

René Mader. xDSL and optical network access family. Siemens Switzerland Ltd 2001. xDSL and optical network access family. Issue 1.1 04/01. General overview and applications New features in 2001. ULAF+ bridging the „last mile“. Central Office. Copper. Fibre. Copper.

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xDSL and optical network access family

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  1. René Mader xDSL and optical network access family Siemens Switzerland Ltd 2001

  2. xDSL and optical network access family Issue 1.1 04/01 General overview and applications New features in 2001.

  3. ULAF+ bridging the „last mile“ Central Office Copper Fibre Copper Fibre Copper: HDSL via two UTPs SHDSL via one or two UTPs Fibre: 2Mbps transmission via one single mode fibre

  4. PBX IP Router / Switch Mobile base station Internet PoP Access Mux ... SDH / PDH Mux Cross Connect IP Router / Switch ATM / Frame Relay ISDN PRA Internet Server Mobile network controller ... Universal connectivity Line equipment family designed for point-to-point connections and fixed lines Copper Optical Fiber network line subscriber

  5. PBX Service Provider Business subscr. ISDN Switch ULAF+ ULAF+ ULAF+ Internet Server Voice access for business applicationsISDN PRA CO / Local Exchange Interface V/T ISDN PRA / S2M e.g. Branch office e.g. ISP

  6. PBX PBX MUX MUX MUX Service Provider Business subscr. e.g. Branch office ULAF+ ULAF+ e.g. SDH Ring ULAF+ ULAF+ Voice leased line Interface G.703/704 2Mbps

  7. Service Provider Business subscr. e.g. Branch office ULAF+ ULAF+ ULAF+ ULAF+ Router Router Data leased line ATM/SDH/TDM Network Interface nx64kbit/s 10BaseT, X21, V.35, V36

  8. PBX PBX MUX MUX MUX Service Provider Business subscr. e.g. Branch office ULAF+ ULAF+ e.g. SDH Ring ULAF+ ULAF+ Router Router Voice & Data leased line Interfaces nx64kbit/s and 2Mbps fract. E1

  9. Base Station ULAF+ ULAF+ ULAF+ Base Station GSM mobile network Switch or BSC Interface G.703/704 (fract.E1)

  10. PBX PBX Router Router Add / Drop Mode Example for the modem connection V.24 LCT G.703 G.704 G.703 G.704 Slave Master xTU xTU n × 64 kbit/s 10BaseT/Ethernet n × 64 kbit/s 10BaseT/Ethernet Voice Data

  11. PBX V3 V3‘ T PSTN Internet GTU as NT1-Z: ISDN PRA applicationsfor PABX or Internet Internet user Transparent 2Mbit/s link ISDN LE ISP POP Internet user GTU (NT1-Z) a/b or ISDN BA Internet user NT1-Z Function: ISDN PRA NT1 - handling of Sa-bits used for link maintenance from ISDN local exchange (LE) e.g. loopbacks/acknowledgements, alarms and CRC4

  12. Router or DTE Router or DTE GTU: Interface Converter Example for conversion: data nx64kbit/s or 10BaseT  G.704 2Mbit/s 2Mbit/s SDH/TDM or 2MBit/s Leased Line Network* GTU GTU G.703/G.704 G.703/G.704 * transparent G.703 connection Data nx64 kbit/s or 10BaseT Data nx64 kbit/s or 10BaseT

  13. PBX Router or DTE GTU - G.703 Termination Unit as Interface Converter Example for conversion: fractional E1/data nx64kbit/s  G.704 SDH G.704 fractional E1 2Mbit/s-T 2Mbit/s-V SDH SDH GTU G.703/G.704 SDH Data nx64kbit/s or 10BaseT bridge

  14. ULAF+ Family • HTU: HDSL transmission with line code 2B1Q via two wire pairs • OTU: Optical (ping-pong) transmission via one single fiber • STU: SHDSL transmission with line code 16PAM via one or two wire pairs (STU2) • GTU:interface converter data or data/fractional E1  E1 G.703/G.704 • various additional units, subscriber interface modules and accessories

  15. ULAF+ Family - Mechanical design

  16. HDSL Enhanced 2B1Q technology (up to 10% additional reach over two wire pairs with 1168kbit/s Near Maximum Likelihood algorithm for longest reach Extended loop length with HDSL repeater Remote power feeding for repeater or desktop Fractional installation over one copper pair Fully compliant with ETSI TS 101 135 Transmission (1) • Single platform for xDSL and optical transmission

  17. Optical transmission 2Mbit/s duplex transmission via one single-mode optical fiber  Time Compression Multiplex (TCM - Ping Pong) technology fiber type 10/125m nominal light wavelength 1310nm laser peak power +3 dBm receiver sensitivity -16 dBm  section attenuation 12 dB  section length 18 km  burst cycle 2kHz (0,5ms)  symbol rate 8192 kBaud  burst length 12164 bits  line code binary, scrambled  pulse shape rectangular, NRZ  optical connector bulkhead FC/PC Transmission (2) • Single platform for xDSL and optical transmission

  18. SHDSL new international standards from ETSI (TS 101 524) and ITU-T (G.991.2) drafts released in 12.00 only one copper pair is sufficient for a full performance compared with HDSL  longer distances due to new 16PAM line code (4B1HEX)  symmetrical transmission up to 2312 kbit/s  multirate  „trading speed for distance“ - adjustable line speed  spectral compatibility with other services in the same cable (e.g. POTS, ISDN, HDSL, ADSL, etc) -more pairs can be used than with HDSL  low power consumption  remote power feeding of NTUs and regenerators (applications not possible with ADSL) Transmission (3) • Single platform for xDSL and optical transmission

  19. Feature Summary (1) • Service Convergence • Add/Drop nx64kbit/s & G.703 • nx64kbit/s: V.35, V.36, X.21 • 2Mbit/s: bit-transparent, frame-structured, ISDN-PRA • Flexibility • The same system unit for 2Mbit/s (incl. ISDN PRA) and data (incl. 10BaseT) • HDSL, SHDSL and F.O. line cards • The same PCB for plug-in and desktop unit (HDSL and O.F.) • Interface converter unit • Variety of interface modules

  20. Feature Summary (2) • Operations & Maintenance • LineIntegrator - SNMP network management system • Open SNMP MIB (Management Information Base) • Line Management applications for HP OpenView • Various DCN (Digital Communications Network) possibilities: TCP/IP data network; leased lines and SDH networks using inband time slots via GTU; V.24 extensions via modems • AccessIntegrator - integration of ULAF+ NEs (Network Element) on Element Manager level 04.2002 • TNMS - screen level integration 03.2002 and the full integration scheduled for 4Q2002. • Compatibility to ULAF-2 • Interoperability between 2Mbit/s units

  21. Fault & Configuration Management • Remote from Network Management System • LineIntegrator • AccessIntegrator • Local • Local craft terminal • LEDs • DIP switches (test loops and configuration 2Mbit/s)

  22. ManageabilityFault, configuration, performance (G.826), security EfficiencyConfiguration up- and download MobilityDesigned for laptop application Ease of LearningIntuitive „Windows“ look & feel Ease of useLink status at one glance Local Management via LCT (1)

  23. Local Management via LCT (2)

  24. Local management via LCT (3) During installation and commisioning • Performance values HDSL • - Line attenuation in [dBm] • - Noise margin in [dB] • True bit error measurements using Pseudo Random Bit • Sequence 215-1 (PRBS) in time intervals „current 15 • minutes“, „last 15 minutes“, „current hour“ and „last full hour“ • No external measuring equipment necessary. In operation • „Alarm history“ • The last 100 events/alarms are stored in every network element • with a time stamp and can be displayed in LCT. Using this feature • the unregular disturbances could be easily located

  25. HTU HTU HDSL applicationsFIPO • Over 1 copper pair -> Fractional Installation mode for <= 1Mbit/s • Increased Reliability -> Partial Operation mode HTU HTU

  26. HTU/RPS HTU/RPS HDSL applications Remote power feeding 40...72VDC 95...260VAC REG REG HTU 40...72VDC Up to 2xn [km] HTU n [km] 40...72VDC

  27. STU/RPS STU/RPS SHDSL applications Remote power feeding 40...72VDC 95...260VAC REG REG STU/RPS Up to mxn [km] m 8 40...72VDC STU n [km] 40...72VDC Remark: Remote power feeding possible from both sides

  28. *Proxy agent ULAF+ ULAF+ ULAF+ ULAF-2 LineIntegratorEverything under control LineIntegrator SNMP NMS V.24 10BaseT SNMP IP DCN 10BaseT V.24 *Proxy agent: Converter ULAF protocol  SNMP

  29. Top-class network management • Operator's benefits: • Increased network availability • Online network monitoring • Fast service deployment • Fast and specific reaction to changing customer needs • Integration: • SNMP open standard for a common management platform • HP OpenView Network Node Manager is widely established • Open MIB for integration in umbrella management

  30. LineIntegrator: Network Map

  31. LineIntegrator: Element Manager

  32. LineIntegrator: Fault and performance management

  33. Subrack • 16+1 plug-in units • Direct front access: no need for external interface adaptors; modularity prepared for future interfaces • Mixed operation HDSL, SHDSL, optical transmission andinterface conversion • External clock inputs available (120  and 75 ) • Central power connection • Internal bus system; up to four subracks can be cascaded using only one OMI • Subrack fits into both 19‘‘, 21“ and ETSI rack; • W x H x D = 482 x 266 x 242 mm • Cable tray available Cable tray • Max. power consumption: 200W • equipped with 16X(HTU+RPS)+OMI; • internal max.100W

  34. 2Mbit/s (incl. ISDN PRA) nx64 kbit/s Add/Drop Ethernet Remote Bridge Integrated power supplyPlug-in unit 40..72VDCDesktop unit local 40..72VDC, or 95-260VAC, or remote powering Submodule for RPS Interface submodules for a range of connector types and impedances LT / NT Functionality Clock: 2Mbit/s / Line / Internal/ External (In/Out) Configuration via: LCT, NMS, DIP Switch (2Mbit/s applications) Alarm indication: LED, LCT, NMS, dry alarm contacts Available in desktop housing or as plug-in unit HTU Features

  35. HTU in a desktop housing and as a plug-in unit Remote power supply Data interface 2Mbit/s (G.703) interface Data interface 2Mbit/s (G.703) interface

  36. 2Mbit/s (incl. ISDN PRA) nx64 kbit/s Add/Drop Ethernet Remote Bridge Integrated power supplyPlug-in unit 40..72VDCDesktop unit local 40..72VDC, or 95-260VAC, or remote powering Remote power supply circuit on board of plug-in unit; remote power feeding of regenerators possible from LT and NT side Interface submodules for a range of connector types and impedances LT/NT functionality Plug-in unit optimized as LT and desktop as NT Clock: 2Mbit/s / Line / Internal / External (In/Out) Configuration via: LCT, NMS, DIP Switch (2Mbit/s applications) Software download from NMS LineIntegrator Alarm indication: LED, LCT, NMS, dry alarm contacts Adjustable line speed from 192kpbs to 2304kbps in 64kbit/s steps STU Features

  37. STU in a desktop housingand as a plug-in unit 2Mbit/s (G.703) interface 2Mbit/s (G.703) interface Data interface

  38. 2Mbit/s (incl. ISDN PRA) nx64 kbit/s Add/Drop fractional E1/data incl.Ethernet remote bridge Integrated power supplyPlug-in unit 40..72VDCDesktop unit local 40..72VDC, or 95-260VAC, or remote powering Interface submodules for a range of connector types and impedances Integrated RPS 120/180VDC/50mA LT/NT functionality Clock: 2Mbit/s / Line / Internal / External (In/Out) Configuration via: LCT, NMS, DIP Switch (2Mbit/s applications) Alarm indication: LED, LCT, NMS, dry alarm contacts Adjustable line speeds from2x192kbit/s (384kbit/s) up to 2x1152kbit/s (2304kbit/s) in steps of 128kbit/s Attainable distances without regenerators up to 40% longer compared with HDSL (2B1Q) due to the payload splitting STU2 - SHDSL via two UTPs(available from 1.Q2002)

  39. DCN TCP/IP Applications of STU2 and SRU for long haul connections - up to 8 regenerators possible LineIntegrator or AccessIntegrator NMS Siemens Access Products: FastLink,FMX, etc. SNMP Port ULAF+ subracks equipped with STU2 RPS from RPIU RPS from RPIU SRU7 SRU2 SRU8 SRU1 6 5 3 4 SHDSL +RPS SHDSL +RPS SRU1 SRU2 SRU8 SRU7 3 4 5 6 RPS from RPIU RPS from RPUI RPIU OMI SNMP RPIU STU2: SHDSL transmission unit via two wire pairs OMI SNMP: ULAF+ controller unit with 10BaseT interface RPS: Remote power feeding 120VDC or 180 VDC /50mA from STU2 or RPIU RPIU: Remote power insertion unit via separate wire pairs SRU: SHDSL Regenerator Unit Local maintenance via LCT V.24 interface

  40. OTU: „all in one card“ for optical fiber • Transmission • One single mode optical fiber max. 18 km • TCM technology (ping-pong) • FC/PC connector • Configuration • Interface modules • Alarm & Supervision • Operation • Power feeding Principle of TCM transmission analogous to HTU and STU

  41. OTU in a desktop housing and as a plug-in unit Data interface Optical line interface FC/PC Data interface 2Mbit/s (G.703) interface 2Mbit/s (G.703) interface Optical line interface FC/PC

  42. Function: Interface converter data or add/drop data + fractional E1  G.703/G.704; ISDN PRA NT1 Termination for transparent 2Mbit/s links (NT1-Z) nx64 kbit/s Add/Drop Ethernet Remote Bridge Integrated power supplyPlug-in unit 40..72VDCDesktop unit local 40..72VDC, or 95-260VAC Interface submodules for a range or connector types and impedances Clock: 2Mbit/s / Line / Internal/ External (In/Out) Configuration via: LCT, NMS Alarm indication: LED, LCT, NMS, dry alarm contacts Available in desktop housing or as plug-in unit GTU Features

  43. GTU in a desktop housing andas a plug-in unit Data interface Data interface 2Mbit/s (G.703) V-interface 2Mbit/s (G.703) T-interface 2Mbit/s (G.703) T- interface 2Mbit/s (G.703) V-interface

  44. OMI/OMI SNMP: „total control“ • Alarm aggregation (Urgent /Non urgent) • Interfaces: OMI • 2 x V.24 for LCT and TMN OMI SNMP • V.24 for LCT; 10BaseT for TMN, OMI and OMI SNMP • Summary alarm output (dry contacts) • Visual Indications-LED • Summary alarms • Alarm acknowledgement

  45. SRU - SHDSL Regenerator Unit (available from 1.Q2002) • SRU - SHDSL Regenerator • Feeding voltage 60-180 VDC; Remote power feeding from LT or NT side or locally (local feeding source or via separate UTPs) • up to 8 regenerators cascadable and addressable using LCT or NMS (fault location) • Indoor/outdoor/underground placement The appropriate container with accessories is available from Corning Ltd in Hagen, Germany

  46. Housings for regenerators

  47. Interface Modules • 2 Mbit/s, G.703 • RJ45, 120 Ohm • D-Sub 9-pin 120 Ohm • BNC, 75 Ohm • 1.6/5.6, 75 Ohm Data • 10BaseT Remote Ethernet Bridge • X.21 DCE (DTE possible using V.36 module and corresponding 0-modem cable) • V.35 (M34 and D-Sub 25 pin) DCE and DTE • V.36DCE and DTE • Clock / Alarm D-Sub mini

  48. Transmission units HTU - HDSL Termination Unit OTU - Optical Termination Unit STU - SHDSL Termination Unit STU2- SHDSL Termination Unit via two UTPs GTU - G.703 Termination Unit REG - REGenerator for HDSL SRU - SHDSL Regenerator Unit Modules and other units 2Mbit/s and nx64kbit/s data interfaces RPS - Remote Power Supply Module for HDSL; on board for SHDSL RPIU - Remote Power Insertion Unit Alarm / clock interface Infrastructure Subrack 19‘‘ OMI/OMI SNMP - Operations and Maintenance Interface units Management Software LineIntegrator SNMP LCT Software - Local Craft Terminal Special functions with GTU unit NT1-Z - ISDN PRA adapter Interface converter as successor of NAG-2D.CP Inband management for LineIntegrator ULAF+ components overview

  49. Your contact • Sales Siemens Switzerland Ltd. International Sales Albisriederstrasse 245 CH-8047 Zurich Tel.: + 41-585 585 039 Fax: + 41-585 585 414 e-mail: international.sales@siemens.ch homepage: http://www.siemens.ch/icw

  50. Abbreviations BSC Base station controller DCN Data communication network DTE Data terminal equipment EOC Embedded operating channel ETSI European telecommunication standard institute G.703 ITU-T recommendation 2Mbit/s elecrical G.704 ITU-T recommendation 2Mbit/s frame struture HDSL High-bit-rate digital subscriber line HTU HDSL termination unit ISDN Integrated services digital network ISP Internet service provider LAN Local area network LCT Local craft terminal LE Local exchange LL Leased lines LT Line termination MUX Multiplexer NMS Network management system NT Network termination OMI Operations & maintenance interface unit OF Optical fiber OTU Optical termination unit P(A)BX Private branch exchange PCB Printed Circuit Board PRA ISDN-primary rate access PoP Point of Presence REG Regenerator for HDSL RPS Remote power supply for HDSL SHDSL Single pair digital subscriber line STU SHDSL termination unit TCM Time Compression Multiplex (optics) TMN Telecommunication management network ULAF Universal line equipment access family UTP Unshielded twisted wire pair V.xx Data interface X.21 Data interface WAN Wide area network 2B1Q Line code for HDSL transmission 16PAM Line code for SHDSL transmission

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