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Working Group on Information Transfer (Network Interface)

TS-1000 Specification ： Optical Subscriber Line Interface - 100Mbit/s Single Fiber Bi-directional Interface by WDM -. Working Group on Information Transfer (Network Interface). Contents. ◇ Configuration of Working Group ◇ Purpose of TS-1000 ◇ Reference Configuration of TS-1000

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Working Group on Information Transfer (Network Interface)

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  1. TS-1000 Specification：Optical Subscriber Line Interface- 100Mbit/sSingleFiberBi-directional Interface by WDM - Working Group on Information Transfer (Network Interface)

  2. Contents ◇ Configuration of Working Group ◇Purpose of TS-1000 ◇Reference Configuration of TS-1000 ◇TS-1000 Outline ・Physical Layer Specification 　・Maintenance Signal ◇ Contribution to International Standardization ◇TS-1000 Future Work

  3. SWG1 Inter-Network Logical Interface SWG2 Inter-Network Physical Interface SWG3Inter-Network Management SWG4 Access Line Transmission SWG5 EMC for Info-Communications Equipment Configuration of Working Group Technical Assembly Working Group on Information Transfer (Network Interface)

  4. Purpose of TS-1000(Oct. 2001 Started) While FTTH service was about to spread in Japan,some service providers and carriers implemented 100 BASE-FX (IEEE 802.3) based optical interface to their access network. However, since that IEEE standard does not address this part of the network, they individually developed and utilized their own specifications that were not compatible with one another. In view of users convenience and cost-effectiveness in meeting the growing demand for FTTH services, TTC recognized the needs to unify these individual specifications, and started to study the standardization of the subscriber line interface for single optical fiber (equivalent to 100 BASE-FX). As the deliverable, TTC Technical Specification, instead of TTC Standard, was developed. This met the urgent needs of standardization and publication, and in the future will allow for timely “upstream” to keep compatibility with International Standards of IEEE, ITU and so forth.  May 23, 2002 Version 1(Japanese), November 11, 2002 English Edition

  5. Reference Configuration of TS-1000 This specification describes the optical interface and maintenance signal of the subscriber line with one-fiber-bi-directional-interface by WDM which have several maintenance function e.g. loop back test, considering efficient use of optical fiber cables and maintenance of transmission equipment. TerminalRemote MCCenter MC Network Single Fiber Reference Point TReference Point C note（MC：Media Converter）

  6. PMD PMD :specified in this Technical Specification PCS PMA PCS TS-1000 Outline The optical interface specification follows the IEEE standard 802.3 100 BASE-FX(MII,PCS,PMA,RS). The specified objectin this specification in the LAN CSMA/CD structure is defined in the figures below. The PMD Layer for one-fiber-bi-directional transmission and the maintenance sub layer are TTC original specifications. RS=RECONCILIATION SUBLAYER MII=MEDIA INDEPENDENT INTERFACE PCS=PHYSICAL CODING SUBLAYER PMA=PHYSICAL MEDIUM ATTACHMENT PMD=PHYSICAL MEDIUM DEPENDENT MDI=MEDIUM DEPENDENT INTERFACE RS RS MII MII Maintenance sub layer Maintenance sub layer IEEE 802.3 100BASE-FX (PMA, PCS, MII, and RS) MII MII PMA PMD MDI MDI One fiber optical cable

  7. Physical Layer Specification 1.Interfaces Three kinds of physical layer specifications are defined according to distance. 1）　Class S　：　Transmission Loss15dBPower Penalty1dB 2）　Class A　：　Correspondent to =< 20km transmission （under study） 3）　Class B　：　Correspondent to =< 30km transmission （under study） 2.Specified Parameters 　　・Output Wave Length/Input Wave Length 　　・Spectral Width 　　・Output Optical Level/Input Optical Level 　　・Extinction Ratio 　　・Pulse Mask 　　・S/X Tolerance 　　・Reflection 　　・Test Pattern 　　・Jitter 　　・SignalDetect

  8. MaintenanceSignal （TTC Original Frame Format） Maintenance Signal uses the coding in accordance with IEEE standard 802.3 100BASE-FX, and is 96bits fixed-length frame. (TTC Original for economical and swift realization using existing Ether devices.) Signals (1)Request for status report to Remote MC and its Response Request for status report (Center MC　→　Remote MC ) Status report response(Remote MC →Center MC） (2)Status report from Remote MC to Center MC （Remote Link status reports are given when Option B is selected.) Status report (autonomous) (Remote MC →Center MC） (3) Status report from Center MC to Remote MC (Option A) Status report (autonomous) (Center MC → Remote MC) (4) Loop Test Request for Loop Test Start (Center MC　→　Remote MC) Response to Loop Test Start (Remote MC →Center MC) Request for Loop Test End (Center MC　→　Remote MC) Response to Loop Test End (Remote MC → Center MC) Indication of Loop Test End (Remote MC →Center MC)

  9. Contribution to International Standardization ◇ Activity for ITU-TSG15 G.985100Mbit/s Point-to-Point Ethernet based optical access system (Jan. 2003 consented。) ◇ Activity for IEEE 802.3ah (EFM) Compatibility on Physical Layer Specification of Class S (Jan. 2003 agreed）

  10. TS-1000 Future Work ◇ TS-1000 Revision to reflect IEEE 802.3ah(EFM) agreed item ◇ Study on TS-1000 Long Reach Version (20km/Class A, 30km/Class B) ◇ Study on TS-1000 1Gb/s Specification ◇ TTC Standardization

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