部内資料

- OERIEW OF DIGITAL SBSCRIBER LINE (DSL RECOMMENDATIONS 2.0 2002 5 30 THE TELECOMMNICATION TECHNOLOGY COMMITTEE

(DSL... 4... 4... 4... 4... 4... 5... 6... 7... 8... 8... 9... 9... 9... 10... 11... 11... 19... 24... 24... 25... 28 2 JTG995.

IT-T TTC G.992.1 JT-G992.1(2002 530 G.992.2 JT-G992.2(2001 11 27 G.994.1 JT-G994.1(2002 530 G.996.1 JT-G996.1(2002 530 IT-T G.991.1(1998 10 G.992.1, G.992.2, G.997.1(1999 6 G.992.1 Annex H2000 10 G.991.2,G.994.1, G.996.1(2001 2 3 JTG995.

- - - - - DSL xdsl IT-T G.991.1G.992.1G.992.2G.994.1G.996.1 G.997.1 2B1Q ADSL ATM AT AT-C AT-R C CAP CO CPE DLL DSL 2 Binary 1 Quaternary Asymmetric Digital Subscriber Line( Asynchronous Transfer Mode ( ADSL Transceiver nit(adsl ADSL Transceiver nit-central Office End ( ADSL ADSL Transceiver nit-remote End ( ADSL Common circuitry ( Carrier-less Amplitude and Phase ( Central Office ( Customer Premises Equipment ( Digital Local Line ( Digital Subscriber Line ( 4 JTG995.

GII H HDSL h-p HSS-TC HST HST-C HST-R I ISDN ISP l-p LT M MPS-TC NT2 NT PHY PMD PMS-TC POTS REG SM SNI STM TA TC TCM TPS-TC XT XT-C XT-R Global Information Infrastructure HDSL transceiver (HDSL High-speed Digital Subscriber Line ( high-pass ( Hand Shake Specific-Transmission Convergence ( Handshake Transceiver nit ( Handshake Transceiver nit-central office end ( Handshake Transceiver nit-remote end ( Interface ( Integrated Services Digital ( Internet Service Provider Low-pass ( Line Termination nit ( Mapping ( Management Protocol Specific-Transmission Convergence ( Termination 1 ( 1 Termination 2 ( 2 Termination nit ( Physical Layer ( Physical Media Dependant Physical Media Specific-Transmission Convergence ( Plain Old Telephony Service ( Regenerator ( Service Module ( Service Node Interface ( Synchronous Transfer Mode ( Terminal adapter ( Transmission Convergence ( Time Compressed Multiplex ( Transport Protocol Specific-Transmission Convergence ( Access Interface ( xdsl Transceiver nit (xdsl xdsl Transceiver nit-central Office End ( xdsl xdsl Transceiver nit-remote End ( xdsl DSL G.992.1G.992.2G.991.1G.991.2G.996.1G.994.1 G.997.1 G.991.1G.991.2G.992.1 G.992.2 G.994.1G.996.1 G.997.1 G.992.1 G.992.2 5 JTG995.

5.15.7 DSL 5.8 G.992.1 (ADSL G.992.1 (AT-R (AT-CADSL 2 1 AT-R AT-C ADSL ( G.992.1 ADSL ADSL G.992.1 6.144Mbit/s 640kbit/s 2 I G.992.1 I II II G.992.1 ADSL - (POTS ADSL - G.961 I II ISDN ADSL ADSL ISDN ISDN - (POTS G.961 III ISDN ADSL - ( ( G.992.1 - - AT-C AT-R - AT-C AT-R - - - - AT-R - ATM - 6 JTG995.

- G.961 I II ISDN - G.961 III ISDN - IT-T G.961 TCM-ISDN SSDSL TCM-ISDN 32kbit/s 192kbit/s 1.6Mbit/s 1.544Mbit/s STM G.992.1 - - - AT-C AT-R - - - STM (ATM - G.994.1 G.992.1 G.992.1 G.992.2 G.992.2 G.992.2 AT-C AT-R ADSL ( 2 G.992.2 G.992.2 ADSL G.992.2 1.536Mbit/s 512kbit/s G.992.2 - AT-C AT-R - AT-C AT-R - - - - AT-R - ATM 7 JTG995.

- - CPE CO - AT-R - ; - G.961 III TCMISDN - G.961 I II ISDN G.992.2 - G.992.1 G.992.1 G.991.1 (HDSL HDSL HDSL 2 3 1784kbit/s 2 3 1168kbit/s 2 2320kbit/s 1 G.991.1 2B1Q CAP G991.1 2048kbit/s 2B1Q A 2 1544kbit/s G.704 CAP B G.991.1 2 3 HDSL HDSL HDSL G.991.1 G.991.1 HDSL 8 JTG995.

G.994.1 DSL G.994.1 a b DSL c DSL d DSL e f G.997.1 G.992.x eoc ADSL G.996.1 G.99x G.996.1 G.992.1 G.992.2 G.992.1 G.992.2 9 JTG995.

DSL G.992.1G.992.2G.991.1 G.991.2 G.991.1 G.991.2 G.992.1 G.992.2 G.991.1 G.991.2 G.991.1 G.991.2 G.991.1 1 2320kbit/s 2 1168kbit/s 2 3 784kbit/s G.991.2 1 192-2312kbit/s G.992.1 6.144Mbit/s 640kbit/s G.992.2 1.536Mbit/s 512kbit/s G.992.1 G.992.2 G.992.1 G.992.2 G.991.1 G.991.2,G.992.1 G.992.2 G.991.1 G.992.1 G.992.2 G.991.1G.992.1 G.992.2 G.991.1 G.992.1 G.992.1 G.991.1 G.992.2 G.991.1 G.992.1 G.992.2 G.992.2 G.992.1 DMT G.991.1 2B1Q CAP G.992.1 G.992.2 2 DMT G.992.2 G.992.1 G.992.2 G.992.1 G.992.2 G.992.2 G.992.2 IFFT FEC G.992.2 G.961 III TCM-ISDN G.992.1 G.992.2 TCM-ISDN C TCM-ISDN G.992.1 H G. 992.1 H G. 992.1 C TCM-ISDN DMT G.991.2 C G.992.1 H G. 991.1 G.991.2 T1 E1 10 JTG995.

2 POTS ISDN G.991.2 1 192-2312kbit/s G.991.1 2048 1544 kbit/s G.991.2 G.991.1 G.991.2 TC-PAM G.991.1 2B1Q CAP G.992.x 1 DSL G.994.1 G.992.x DSL G.994.1 G.994.1 G.992.1 G.992.2 G.991.1 G.994.1 DSL G.994.1 G.994.1 G.997.1 G.996.1 G.996.1 G.99x G.992.1 G.992.2 G.996.1 G.991.1 G.990 G.996.1 G.997.1 G.992.x eoc ADSL G.997.1 G.992.1 G.992.2 eoc G.992.x ( G.992.2 G.99x 2 1 I.410 N-ISDN 6.1 G.99x 6.2 1 I.411 N-ISDN xdsl Access Management Core SNI Q Access 1 T NT2 S TA G.99x R ser Terminal T1531370-99 (115326 11 JTG995.

7 1 2 3 1( 4 2(NT2 5 (TA 6 7 Q ( Q ( T ( T ( ATM T/ NT2 T S NT2 ( ATM NT2 /2 NT NT NT TA G.99x 2 ( ( ( 1 DSL ( 6.1 2 1 G.992.1 12 JTG995.

Core SNI Access T NT2 S W TA R ser Terminal Broadband network P H Y -C AT-C NT AT-R T-R P H Y T/S Customer Premise network SM Narrow-band network GSTN or ISDN -C 2 h p l p Splitter C -C -R h p l p Splitter R -R 2 POTS or ISDN service SM Telephone set voiceband modem, or ISDN terminal T1531380-99 (115326 Signal lines Interfaces 2 G.992.1 G.992.1 ADSL 1 ( 2 ADSL : 1 ADSL (AT-C 2 POTS ADSL POTS 3 ADSL 1 ADSL (AT-R 2 / 3 4 ADSL-NT2 G.992.1 T ( -C-R-CT-R -C -R G.992.1 -R -C -C T-R -C (STM ATM 13 JTG995.

-C T-R ( AT-C AT-R -C2 -R2 -C -R ( SONET/SDH -C T/S G.992.1 T-R T/S ADSL-NT( NT2 3 1 G.992.2 Core SNI Access T NT2 S TA R ser Terminal Broadband network P H Y -C AT-C NT T-R AT-R P H Y T/S Home network SM -C 2 h p SM Narrow-band network GSTN or ISDN h p l p Splitter C -C -R Home POTS wiring -R l p (optional Telephone set voiceband modem, or ISDN terminal T1531390-99 (115326 Signal lines Interfaces G.992.2 G.992.2 G.992.2 6.1.1.1 2 3 POTS POTS POTSISDN G.992.1 G.992.2 -R2 G.992.2 6.1.1.1 4 1 G.991.1 14 JTG995.

ser Terminal R S T Access TA NT2 SNI Core HDSL Core Access Digital Section Application Interface Customer side I M C H DLL REG DLL H C M I Application Interface NT ( Termination nit NOTE 1 LT (Line Termination nit T1531400-99 (115326 C H I M REG DLL = =HDSL = = = = 1 HDSL G.991.1 1 2 3 HREG DLL 2: REG 4 G.991.1 HDSL 4 HDSL (H HDSL (DLL 1 2320kbit/s2 1168kbit/s 2 3 784kbit/s HDSL ( (C HDSL HDSL HDSL (REG HDSL (I (M (LT ( (NT ( HDSL HDSL 15 JTG995.

5 1 G.991.2 S R T ser Terminal TA NT2 Access Core SNI ser Terminal T/S -R -C -R -C -R -C DLL DLL DLL ST-R SR ST-C CO ser Terminal T/S (Optional T1542950-00 (115326 (Optional 5 G.991.2 G.991.2 SHDSL DLL SHDSL SR ST-C ST-R ST-C 1 SHDSL SR ST SR DLL ST- SR -R -C ST-C ST-R NT2 ST-R 1 T/S 6 1 G.994.1 16 JTG995.

Core SNI Access T NT2 S TA R ser Terminal HST-C HST-R T/S ser Terminal CO Line Circuit -C2 -C -R -R2 Splitter Loop Plant Splitter POTS Set G.994.1 T1531410-99 (115326 G.994.1 G.992.1/G.992.2 G.994.1 G.994.1 ( (HSTG.994.1 G.992.1 G.992.2 HST-C HST-R NT2TA HST-R 7 1 G.997.1 17 JTG995.

Access Management Q Core SNI Access T NT2 S TA R ser Terminal Q AN Management Entity NT Management Entity TE Broadband P H Y XT-C Loop Plant XT-R P H Y Home TE -C -C -R T-R T/S Management Interface in G.ploam T1531420-99 (115326 G.997.1 G.997.1 G.994.1 G.992.1 G.992.2 xdsl (XTG.997.1 G.992.1 G.992.2 (AN NT Q AN NT XT-R NT2TA 8 1 G.996.1 18 JTG995.

Core SNI Access T NT2 S TA R ser Terminal XT-C XT-R CO Line Circuit -C2 -C -R Home POTS Wiring -R2 Splitter Test Loop Splitter G.996.1 POTS Set T1531430-99 (115326 G.996.1 G.992.1 G.992.2 XT G.992.1G.992.2 G.99x - - - - POTS 2 ( G.996.1 XT-CPOTS POTS POTS XT-R G.99x 9 DSL 19 JTG995.

, NT2/1 AT-R AT-C LT Transport Protocol (e.g. ATM TPS-TC TPS-TC PMS-TC PMS-TC PMD PMD Prem. Wiring γ-r γ-c β α Physical Transmission Media Transport Protocol (e.g. ATM TPS-TC PMS-TC Private PMD Internal Interface S/T LT Internal Interface T1531440-99 (115326 9 : TPS-TC PMS-TC LT R C ( ATM xdsl ( ADSL T-R-C ( AT-C AT-R PMDTPS-TC PMS-TC OSI 3 (LT AT-C NT2/1 AT-R T/S / LT T / NT2 S / 10 G.992.1 G.992.2 20 JTG995.

, NT2/1 AT-R AT-C LT Transport Protocol (e.g. ATM γ-r γ-c Transport Protocol (e.g. ATM TPS-TC TPS-TC β α TPS-TC PMS-TC PMD PMD PMD Private Premises Wiring Physical Transmission Media Internal Interface S/T LT Internal Interface T1531450-99 (115326 G.992.1 G.992.2 G.992.1 G.992.2 PMD PMS-TC 2 1 PMD PMD G.992.2 G.992.1 11 2 G.991.1, NT2/1 AT-R AT-C LT Transport Protocol (e.g. ATM γ-r γ-c Transport Protocol (e.g. ATM TPS-TC PMS-TC PMD PMD1 TPS-TC PMD2 β α PMD1 TPS-TC PMD2 Private Prem. Wiring Physical Transmission Media Internal Interface S/T LT Internal Interface T1531460-99 (115326 G.991.1 2 PMD 2 1 12 G.991.2 21 JTG995.

, NT2/1 ST-R ST-C LT Transport Protocol (e.g. SDH Not Specified ser Data Interface TPS-TC PMS-TC PMD γ R γ C β α Physical Transmission Media TPS-TC PMS-TC PMD Transport Protocol (e.g. SDH Not Specified Internal Interface S/T LT Internal Interface T1542960-00 (115326 G.991.2 G.991.2 PMD PMS-TC PMS-TC ST-C ST-R TPS-TC TPS-TC SHDSL TPS-TC r c TPS-TC r c G.994.1 13 22 JTG995.

AT-R AT-C HSS-TC PMD Physical Transmission Media HSS-TC PMD T1531470-99 (115326 13 G.994.1 G.994.1 G.992.1 G.992.2 G.994.1 13 PMD (HSS-TCG.992.1 G.992.2 G.992.1 G.992.2 G.992.1G.992.2 G.994.1 13 10 14 G.99x G.997.1, NT2/1 AT-R AT-C LT Management Protocol (s Management Protocol (s MPS-TC TPS-TC TPS-TC MPS-TC Private PMS-TC PMS-TC Private PMD PMD Prem. Wiring Physical Transmission Media Internal Interface S/T LT Internal Interface T1531480-99 (115326 G.99x 14 MPS-TC 4 PMD PMS-TC( AOCEOC 23 JTG995.

(MPS-TC( SNMP TPS-TC( ATM G.996.1 ISDN RST CPE ISP CPE-CPE GII 2 NT2 15 G.902 GII G.992.2 G.992.1 (Access Section - Management Q N-ISDN Reference Points R S T T Terminal Equipment TA NT2 Access Core Access ISP SNI ISP SNI T1531490-99 (115326 G.902 GII Reference Points xdsl 24 JTG995.

T 16 T T TE Access Core Access ISP SNI ISP SNI T1531500-99 (115326 16 T G.992.1 ISDN T TE NT2 TA 17 G.992.1 25 JTG995.

Q Access Node TE Service Splitter Copper Plant Service Splitter LT Phone T -R -C PSTN T1531510-99 (115326 T G.992.1 G.992.2 18 Q Phone Optional Low pass Filter Access Node TE Copper Plant Service Splitter LT Phone T -R -C PSTN T1531520-99 (115326 T G.992.2 7.2.2 19 T TE Access Core Access ISP SNI SNI ISP T1531530-99 (115326 19 26 JTG995.

G.992.1 TE (GII TE T TE NT2 ( TA 20 G.992.1 Q Access Node TE Service Splitter Copper Plant Service Splitter LT Phone -R -C PSTN G.992.1 T1531540-99 (115326 G.992.2 TE (GII TE T TE B-NT2 ( TA 21 G.992.2 Q Phone Access Node S TE Copper Plant Service Splitter LT Phone -R -C PSTN T1531550-99 (115326 G.992.2 27 JTG995.

DSL : β γ-c γ-r ( / ( / XDSL ( ADSLT-R-C XDSL ( ADSLT-R-C ADSL Crceocaoc OAM FEC ADSL AS0 OAM crceoc FEC AT-C AT-R ADSL I II DMT (IDFT 1 {ZI} DMT {xn}(idft {ZI} (=4 kbaud AT-C AT-R DSL IT-T G.991.1G.992.1G.992.2G.994.1G.996.1G.997.1 Sum(Bf>0 Sum(Bi>0 FEC OAM G.994.1 G.994.1 28 JTG995.

LS0 DSL AT-R AT-C G.994.1 AT-C AT-R ( 1 1 Sum(Bf>0 Sum(Bi>0. SNI (SNI (ADSL ( POTS POTS IDFT Zi 68 1 ((69/68*4.0=4.0588kbaud AOCeoc IB DMT FEC G.994.1 [ACK](1 (NAK AT-R AT-C 04kHz 0.33.4kHz POTS POTS xdsl 29 JTG995.

1 G.704 1991 2 G.961 ISDN (2B+D144kbps 1993 3 G.991.1 (HDSL 4 G.991.2 1999 (SHDSL 5 G.992.1 (ADSL 1999 6 G.992.2 (ADSL 1999 7 G.994.1 (DSL 1999 8 G.996.1 (DSL 1999 9 G.997.1 (DSL 1999 10 I.411 ISDN 1993 30 JTG995.