1 / 11

SunSet xDSL 교육자료

SunSet xDSL 교육자료. 2001 년 4 월 26 일 Sunrise Telecom Korea. << ADSL Test 를 위한 Block Diagram >>. A. B. c. D. E. F. G. H. AWS. DSLAM. 사설 MDF. 국내 MDF. 층단자. ATU-R Modem. Splitter. SunSet xDSL (ATU-C). SunSet xDSL (ATU-R/C). SunSet xDSL (ATU-R/C). SunSet xDSL

alicia
Download Presentation

SunSet xDSL 교육자료

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. SunSet xDSL 교육자료 2001년 4월 26일 Sunrise Telecom Korea

  2. << ADSL Test 를 위한 Block Diagram >> A B c D E F G H AWS DSLAM 사설 MDF 국내 MDF 층단자 ATU-R Modem Splitter SunSet xDSL (ATU-C) SunSet xDSL (ATU-R/C) SunSet xDSL (ATU-R/C) SunSet xDSL (ATU-R) 1. SunSet 계측기의 Test 용도 1) A~H 구간 중 어느 구간이든 속도 및 선로 특성 Check 가능. 2) A~H 구간이 가입자 수용이 불가능한 상태로 판단되었을 시 (즉, SYNC 가 안될 때), 계측기의 MODE 1 기능을 수행하여 수용 가능한 속도 조건을 제시할 수 있다. 즉, DSLAM에서 특정 가입자 속도를 고정시키는 방법을 제시. 3) 개통 후 가입자의 민원사항을 Check 하기 위해 정밀 TEST 가능하다. 또한, CX-100 과도 Auto Line Test 가능 (Open/Short. Insertion Loss, PSD 를 Auto로 Test 해 줌 : 약 6분 소요) 4) Level Meter 기능 하나로도 속도 예측 가능. 즉, 특정 주파수를 보낼 때 그 주파수 대역이 흔들릴 때의 지점이 DSLAM 이 안정된 Data를 실어 줄 수 있는 대역폭의 마지막이 된다.

  3. ANSI / G.dmt (G.992.2) & G.lite (G.992.1) / MULTI 4 Steps to establish a link: 1) Activation and Acknowledgment 2) Transceiver Training 3) Channel Analysis 4) Exchange PSD (dBm/Hz) VDSL ADSL (Tone B/W : 4.3125 KHz) * 3.66m/  0.273  /m (0.4 mm) * 19.4m/nF  0.051nF/m Pilot Tone (Up Stream) G.dmt Pilot Tone (Down Stream) G.lite T1 E1 << Maximum Performance >> DownStreamUpStream 1 Km 8Mbps 800Kbps 3 Km 6Mbps 640Kbps 12000ft 4Mbps 640Kbps 15000ft 2Mbps 640Kbps ISDN (2B1Q) HDSL -36.5 (Max) Down-Stream Up-Stream Band Gap Band Gap AM 라디오 P O T S -97.5 (Min) 40k 194k (44th) 280k (64rd) 4k (1st) 276k (64th) 138k (32nd) 20k (4th) 73k (16th) 543k (125th) 772k (178th) 1024k 1104k (256th) 1700k Freq 1. 15bits/tone X 256tones = 3840bits (=1 Symbol) x 4000Hz = 15.36 Mbps - DownStream : (192/256) x 15.36 Mbps = 11.52 Mbps ( cf. ISDN : 8bit (=1 Symbol) x 8000Hz = 64 Kbps ) - UpStream : (32/256) x 15.36 Mbps = 1.92Mbps 2. ADSL은 SuperFrame (SF) 구조로 되어 있다. 1개의 SF은 68개의 data frame 으로 구성되고, 주기는 17mS 이다. 3. Signal to Noise measurement made for each tone -> Bit distribution among tones is optimized to transmit desired bit rate. 4. Digital signal is first converted into a data stream -> Data stream is divided into : 256 Discrete Multi-Tones (DMT) 5. Quadrature Amplitude Modulation occurs -> Tone quality is measured , Maps up to 15 bits per tone. 6. Signal goes through digital-to-analog converter. 7. G.DMT 나 G.Lite 의 Pilot Tone 은 16, 64 번째 Tone 이다. 처음 Initializing 할 때 16 (up), 64 (down) 둘 다 쓰지만, Link up 후에는 64 번째 Tone 만 ATU-R 에서 PLL을 위해 쓴다. Sync 주기는 256uS 이다.

  4. 1.모뎀쪽 측정치 << SunSet xDSL 측정항목 >> 2.선로쪽 측정치 1) TDR-단선,합선,멀티,Load Coil Check Bits per Tone Insertion Loss per Tone 2) DCV : T-R, T-G, R-G -> POTS 전압측정 3) ACV : T-R, T-G, R-G -> 유도전압 측정 4) 절연저항 : T-R, T-G, R-G -> 절연성 측정 5) 정전용량 : T-R, T-G, R-G -> 거리 및 평형도 측정 Signal to Noise per Tone Noise Power per Tone 6) Loop 저항 : T-R간 -> 거리 및 저항값 측정 7) 삽입손실 측정 -> 각 주파수별 손실값 측정 8) 배경잡읍 측정 (PSD, E,F,G 필터) -> 각 주파수별 잡음값 측정 9) Signal to Noise 측정 -> 각 주파수별 SNR값 측정 1) LINK TURN-UP RESULTS [DOWNSTREAM] [UPSTREAM] FAST : 1504 kbps FAST : 384 kbps INTER : 0 kbps INTER : 0 kbps MAX : 3865 kbps MAX : 783 kbps MARGN: 16.5 dB MARGN: 22.0 dB ATTEN : 58.0 dB ATTEN : 31.5 dB POWER : 20.0 dB POWER: 12.0 dBm CAPAC : 39 % CAPAC : 49% ATU-C MFR : ALCATEL ATU-R VER : 2.0 10) 특정 주파수 Generation 및 측정 가능 11) 측정 전 Calibration 가능 Line Rate 1) FAST Bit rate (실제속도측정) 2) Interleaved Bit rate 12) IMPULSE 잡음 측정 가능 Maximum Line Rate (서비스 가능한 최대속도 값) Noise Margin 값 (Link up시 또는 후에 이 값이 높으면 좋다.) 감쇄값 (선로상에서 감쇄되는 값) # ATU-C 기능으로 DSLAM측 절분하고 Test 가능. # ATU-C 의 Mode1 & Mode2 기능을 이용하여 최대 또는 Link up 안 되는 구간을 Link up 시킬 수 있는 조건 검색 가능. # 차후 ISDN, HDSL, VDSL, SDSL 용도로 Module만 구입하면 됨. Power값 (전 주파수대의 총 파워값) # Alcatel 및 ADI Module 을 교체하여 Test 가능 용량값 (실제 속도를 가능한 최대속도로 나눈 값) 2) LINK MEASUREMENT 1 [ATU-C] [ATU-R] FEC INT :0 FEC INT : 0 FEC FAST :0 FEC FAST : 0 CRC INT : 0 CRC INT : 0 CRC FAST : 0 CRC FAST : 0 HEC INT : 0 HEC INT : 0 HEC FAST : 0 HEC FAST : 0 LINK MEASUREMENT 2 ERR SEC : 0 SEVERC ERR SEC : 0 UNAVAILABLE SEC : 0 BLK ERR RATE : LOSS OF SIG SEC : # OF LINK DROPS : FEC (Forward Error Correction) -ATU-C 및 ATU-R 의 FEC 에러가 있었는지 Check CRC (Cyclic Redundency Check) -ATU-C 및 ATU-R 의 CRC 에러가 있었는지 Check HEC (Header Error Correction) -ATU-C 및 ATU-R 의 HEC 에러가 있었는지 Check ES (Errored Second) -에러가 있었던 초를 측정 3) LINK MEASUREMENT - ALARM STATUS NEAR-END FAR-END CURR HIST CURR HIST LOS (SIGNAL) NO YES NO YES LOF (FRAME) NO YES NO YES LOP (POWER) NO NO NO YES LCD INTER NO YES NO YES LCD N-INTER NO NO NO NO LOM (MARGIN) NO YES NO NO SES (Severely Errored Second) -심각한 에러 (1E-3)가 있었던 초를 측정 UNAVAILABLE SEC -서비스 이용하지 않은 시간 BLK ERR RATE (Block Error Rate) -68개의 슈퍼프레임에 대한 에러 Rate. # PING TEST 가능 (PPP oA, PPP oE, Ethernet OA) # In-Service 상태에서 BackGround Noise Check 가능 ALARM STATUS - 각종 ALARM 상태 표시

  5. <BITS GRAPHIC / TABLE> >LINK UP > 00:37:15 < MULTI< <CARRIER MASK> >LINK UP > TONE 0 (4 kHz) : 0 BITS TONE 1 (8 kHz) : 0 BITS TONE 0 (4 kHz) : ON TONE 1 (8 kHz) : ON _ 15 _ _ ON/ON _ _ _ _ _ _ _ ON/OFF _ _ _ _ 0 OFF/OFF 0 256 0 256 more ZOOM IN << >> RETRAIN >> TOGGLE ALL TLG << SunSet xDSL - ALCATEL 메뉴 구조 (1) : 대우 / 청호 / KMW / 삼성 FLC / 한화 FLC >> <MODULE 키> <2번째줄> MODEM STATUS (ATU-C/R 둘다) <1번째줄> SETUP (ATU-C/R 둘다) (=RESET) 1) GENERAL STATUS - Link 된 결과치 보여줌 2) BITS GRAPHIC / TABLE - 그림 또는 테이블로 표시 3) CARRIER MASK (ATU-C 만) - 4) CLOSE LINK - 링크를 끊을 때 사용 5) OPEN LINK - 링크를 연결하고자 할 때 사용 6) ATU MODULE SELF TEST - 모듈 자체 Test 7) VIEW SETUP PARAMETERS - 셋팅한 값 확인 8) MEASUREMENT THRESHOLDS - SETTING : ON / OFF (ON 일때) - TIMER : 15 / 30 SEC - CAPACITY DN : 0~100 % (+1 , +10 , OFF , +/-) - MARGIN DN : 0.0~62.0 dB(+0.5, +1, OFF, +/-) - FAST RATE DN : 32~8192 Kbps (+32, +512, OFF, +/-) - OPERATION MODE : ANSI / G.DMT / RETRAIN / (more) / G.Lite / Multi / RETRAIN (ATU-C/R 둘다) - PROFILE : Mode1 / Mode2 / RETRAIN / (more) / User1 / User2 / User3(ATU-C 만) (Mode1 또는 Mode2 모드일 경우) - FAST MAX DN RATE : ???? Kbps (+512 / -512 / DEFAULT (8192, 1024) / (more) / +32 / -32 / RETRAIN) - FAST MAX UP RATE : ???? Kbps (+512 / -512 / DEFAULT (832, 224) / (more) / +32 / -32 / RETRAIN) - INT MAX DN RATE : ???? Kbps (+512 / -512 / DEFAULT (8192, 1024) / (more) / +32 / -32 / RETRAIN) - INT MAX UP RATE : ???? Kbps (+512 / -512 / DEFAULT (8192, 224) / (more) / +32 / -32 / RETRAIN) - TARGET MAR DN : 3~15 dB (INC+1 / DEC-1 / RETRAIN / DEFAULT (=6dB) ) - TARGET MAR DN : 3~15 dB (INC+1 / DEC-1 / RETRAIN / DEFAULT (=6dB) ) (User1, User2 또는 User3 모드 일 경우) - OPERATION MODE : ANSI / G.DMT / RETRAIN / (more) / G.Lite / Multi / RETRAIN (ATU-C/R 둘다) - PROFILE : User1 / User2 / User3 (ATU-C 만) - RATE ADAPT MODE : Mode1 / Mode2 / RETRAIN - FAST MAX DN RATE : ???? Kbps (+512 / -512 / DEFAULT (8192, 1024) / (more) / +32 / -32 / RETRAIN) - FAST MAX UP RATE : ???? Kbps (+512 / -512 / DEFAULT (832, 224) / (more) / +32 / -32 / RETRAIN) - INT MAX DN RATE : ???? Kbps (+512 / -512 / DEFAULT (8192, 1024) / (more) / +32 / -32 / RETRAIN) - INT MAX UP RATE : ???? Kbps (+512 / -512 / DEFAULT (832, 224) / (more) / +32 / -32 / RETRAIN) - TARGET MAR DN : 3~15 dB (INC+1 / DEC-1 / RETRAIN / DEFAULT (= 6 dB) ) - TARGET MAR DN : 3~15 dB (INC+1 / DEC-1 / RETRAIN / DEFAULT (= 6 dB) ) ------------------------------------------------------------------------------------------------------------------ more (Page Down) - MIN MAR DN : 0~31 dB (INC+1 / DEC-1 / RETRAIN / DEFAULT (= 0 dB) ) - MIN MAR UP : 0~31 dB (INC+1 / DEC-1 / RETRAIN / DEFAULT (= 0 dB) ) - MAX ADD MAR DN : 31~0 dB (INC+1 / DEC-1 / RETRAIN / DEFAULT (= 31 dB) ) - MAX ADD MAR UP : 31~0 dB (INC+1 / DEC-1 / RETRAIN / DEFAULT (= 31 dB) ) - MAX PSD DN : -34 ~ -52 dBm/Hz (INC+2 / DEC-2 / RETRAIN / DEFAULT (= -40 dBm/Hz) ) ------------------------------------------------------------------------------------------------------------------- more (Page Down) - RATIO DOWNSTREAM : 0%, 25%, 50%, 100 % - RATIO UPSTREAM : 0%, 25%, 50%, 100 % - MAX POWER DN : 20~0 dBm (INC+2 / DEC-2 / RETRAIN / DEFAULT (= -20 dBm) ) - MAX POWER UP : 13~0 dBm (INC+2 / DEC-2 / RETRAIN / DEFAULT (= -13 dBm) ) - MAX DELAY DN : 0~255 ms (INC+1 / DEC-1 / RETRAIN / DEFAULT (= 16 ms) ) - MAX DELAY UP : 0~255 ms (INC+1 / DEC-1 / RETRAIN / DEFAULT (= 16 ms) ) - FAST MIN DN RATE : 0~8192 kbps (+512 / -512 / DEFAULT (0, 0) / (more) / +32 / -32 / RETRAIN) - FAST MIN UP RATE : 0~992 kbps (+512 / -512 / DEFAULT (0, 0) / (more) / +32 / -32 / RETRAIN) - INT MIN DN RATE : 0~8192 kbps (+512 / -512 / DEFAULT (0, 0) / (more) / +32 / -32 / RETRAIN) - INT MIN UP RATE : 0~992 kbps (+512 / -512 / DEFAULT (0, 0) / (more) / +32 / -32 / RETRAIN) GENERAL STATUS (CONTINU, , , STORE) ATU-C MFR : N/A ATU-R MFR : N/A ATU-C SW : 1.6.25 [DOWNSTREAM] [UPSTREAM] FAST : 1504 kbps FAST : 384 kbps INTER : 0 kbps INTER : 0 kbps MAX : 3865 kbps MAX : 783 kbps MARGN: 16.5 dB MARGN: 22.0 dB ATTEN : 58.0 dB ATTEN : 31.5 dB POWER : 20.0 dB POWER: 12.0 dBm CAPAC : 39 % CAPAC : 49% ATU-C MFR : ALCATEL ATU-R VER : 2.0

  6. << SunSet xDSL - ALCATEL 메뉴 구조 (2) : 대우 / 청호 / KMW / 삼성 FLC / 한화 FLC >> <3번째줄> LINK TURN-UP RESULTS (ATU-C/R 둘다) <5번째줄> ALARM STATUS (ATU-C/R 둘다) LINK TURN-UP RESULTS (CONTINU, CLOSE, , STORE) [DOWNSTREAM] [UPSTREAM] FAST : 1504 kbps FAST : 384 kbps INTER : 0 kbps INTER : 0 kbps MAX : 3865 kbps MAX : 783 kbps MARGN: 16.5 dB MARGN: 22.0 dB ATTEN : 58.0 dB ATTEN : 31.5 dB POWER : 20.0 dB POWER: 12.0 dBm CAPAC : 39 % CAPAC : 49% ATU-C MFR : ALCATEL ATU-R VER : 2.0 ALARMS STATUS (HISTORY, , , STORE) NEAR END FAR END CURR HIST CURR HIST LOS (SIGNAL) NO YES NO YES LOF (FRAME) NO NO NO YES LOP (POWER) NO NO NO NO LOD INTER NO NO NO NO LCD FAST YES YES YES YES LOM (MARGIN) NO NO NO NO <6번째줄> PING SETUP / TEST (ATU-R 만) – ALCATEL 및 ADI 공통 <4번째줄> LINK MEASUREMENTS (ATU-C/R 둘다) PING SETUP * MODE : LLC-BRG, LLC-RTE, (START), (more), PPPoE, PPPoA (LLC-BRG 일 경우) - VPI : 8 - VCI : 35 - IP ADDRESS : STATIC, DHCP, , START - LOCAL IP : ???. ???. ???. ??? - DESTINATION IP : ???. ???. ???. ??? - GATEWAY : ???. ???. ???. ??? ======================================================= (LLC-RTE 일 경우) - VPI : 8 - VCI : 35 - LOCAL IP : ???. ???. ???. ??? - DESTINATION IP : ???. ???. ???. ??? ======================================================== (PPPoE 또는 PPPoA 일 경우) - AUTHENTICATION : PAP, CHAP, START - VPI : 8 - VCI : 35 - IP ADDRESS : STATIC, DYNAMIC, , START - LOCAL IP : ???. ???. ???. ??? - DESTINATION IP : ???. ???. ???. ??? - USER ID : (EDIT) - PASSWORD : (EDIT) 01 : 25 : 55 >LINK UP < > MULTI < ET : 00 : 01 : 25 LINK MEASUREMENT 1 (PAGE-UP, PAGE-DN, START, STORE) [ATU-C] [ATU-R] FEC INT :0 FEC INT : 0 FEC FAST :0 FEC FAST : 0 CRC INT : 0 CRC INT : 0 CRC FAST : 0 CRC FAST : 0 HEC INT : 0 HEC INT : 0 HEC FAST : 0 HEC FAST : 0 -------------------------------------------------------------------------- (PAGE-DN) 01 : 25 : 55 >LINK UP < > MULTI < ET : 00 : 01 : 25 LINK MEASUREMENT 2 (PAGE-UP, PAGE-DN, START, STORE) ERR SEC : 0 SEVERC ERR SEC : 0 UNAVAILABLE SEC : 0 BLK ERR RATE : LOSS OF SIG SEC : # OF LINK DROPS :

  7. 20:26: 42 > LINK UP < > < BITS GRAPHICS TONE 0 ( 4 kHz) : 2 BITS TONE 1 ( 9 kHz) : 2 BITS >> << ZOOM IN more TABLE SOTRE more _ 15 _ _ _ _ _ _ _ _ _ _ _ _ _ 0 0 255 20:26: 42 > LINK UP < > < SNR GRAPHICS TONE 0 ( 4 kHz) : 0.0 dB TONE 1 ( 9 kHz) : 0.0 dB >> << ZOOM IN more TABLE SOTRE more _ 60 _ _ _ _ _ _ 30 _ _ _ _ _ _ _ 0 0 255 << SunSet xDSL - ADI ATU-R 메뉴 구조 : 현대 ADI / 삼성 ADI / 성미 ADI / 삼성 FLC>> <MODULE 키> <3번째줄> LINK MEASUREMENTS 01 : 25 : 55 >LINK UP < > MULTI < ET : 000 : 01 : 25 LINK MEASUREMENT 1 (PAGE-UP, PAGE-DN, START, STORE) TRANSMIITED BLOCKS : 0 RECEIVED BLOCKS : 0 CORRECTED BLOCKS : 0 UNCORRECTED BLOCKS : 0 ERRORED SECONDS : 0 ------------------------------- (PAGE-DN) ----------------------------------------- 01 : 25 : 55 >LINK UP < > MULTI < ET : 00 : 01 : 25 LINK MEASUREMENT 2 (PAGE-UP, PAGE-DN, START, STORE) [CURR] [HIST] FEC FAST : 0 0 FEC INTL : 0 0 CRC FAST : 0 0 CRC INTL : 0 0 HEC FAST : 0 0 HEC INTL : 0 0 ------------------------------ (PAGE-DN) ---------------------------------------- 01 : 25 : 55 >LINK UP < > MULTI < ET : 00 : 01 : 25 LINK MEASUREMENT 2 (PAGE-UP, PAGE-DN, START, STORE) [CURR] [HIST] LOD FAST : NO YES LOD INTL : NO NO LOS : NO NO LOF : NO NO LPR : YES YES <1번째줄> MODEM CONFIGURATION - MODE OF OPERATION : ANSI / G.DMT / G.LITE <2번째줄> MODEM STATUS * GENERAL STATUS - Link 된 결과치 보여줌 [DOWNSTREAM] [UPSTREAM] FAST : 1504 kbps FAST : 384 kbps INTER : 0 kbps INTER : 0 kbps MAX : 3865 kbps MAX : 783 kbps CAP : 42.0 CAP : 42.0 SNR : 58.0 dB ATTEN : 20.0 dB ATU-C MFR : ADI ATU-R VER : 3019BE70 * TONE CHARACTERSISTICS - 그림 또는 테이블로 표시 - BITS GRAPHICS / TABLE - SNR GRAPHICS / TABLE * OPEN LINK - 링크를 연결하고자 할 때 사용 * CLOSE LINK - 링크를 끊을 때 사용

  8. 04 : 39 : 21 Template : NONE < BACKGROUND NOISE > -52 -67 -81 -96 -110 [ 4 ] [1600] X(kHz) : 4 . 3 8.6 12.9 Y(dBm/Hz) : -120.0 -119.6 -120.0 GAIN ZOOM_IN MASK TABLE more dBm STORE more 04 : 39 : 21 > COMPLETE CONNECTED < < INSERT ION LOSS > [ 22 ] [768] FREQ. (kHz) : 34 . 500 LOSS ( dB) : 50 . 9 PG_LFT PG_RGT TABLE more BRG_TAP STORE RESTART more << SunSet xDSL (Alcatel, ADI ) - 선로 TEST 메뉴 구조 (1) >> <2번째줄. LINE> 1) BACKGROUND NOISE (배경잡음) - Rx LEVEL : TERM, BRIDGE, START - TYPE : PSD. E . START. (more), F, G, (START), (more) 2) LEVEL METER (주파수 Rx 및 손실 레벨 CHECK) - FREQ. (kHz) : ???? (또는 > 1600) - LEVEL (dBm) : -???.? 3) FREQUENCY GENERATOR (주파수 Tx) - FREQ (kHz) : 10.0 ~ 1600.0 (+0.1, -0.1, (START), (more), +1, -1, (START), (more), +10, -10, (START), (more), +100, -100, (START), (more)) - dBm : -10~26 (Default : 0 dBm) 4) COIL DETECTION (로드코일 CHECK) 5) IMPULSE NOISE (충격잡음) - THRESHOLD : 50 ~ 92 dBrn ( +1, -1, (START), (more), +10, -10, (START), (more)) - DELTA : 2 ~ 6 dB (+1, -1, (START)) - MAX COUNT : 1 ~ 9999 (+1, -1, (START), (more), +10, -10, (START), (more), +100, -100, (START), (more), +1000, -1000, (START), (more)) - DEAD TIME : 0.1 ~ 255.0 ms (+0.1, -0.1, (START), (more), +1, -1, (START), (more), +10, -10, (START), (more), +100, -100, (START), (more)) - TIMER : 1 ~ 무한대 min (+1, -1, (START), (more), +10, -10, (START), (more), +100, -100, (START), (more)) 6) CONTROLLER (7번과 함께 동작됨) - INSERTION LOSS - SIGNAL TO NOISE - LOOP RESISTENCE 7) RESPONDER (6번과 함께 동작됨, 항상 대기상태) - LINE : (IDLE, CONNECTED, DISCONNECTED) - COMMAND : (INSERTION LOSS, LOOP RESISTENCE, ETC) - STATUS : (IDLE, PROCESSING, COMPLETED) 8) CALIBRAION - BACKGROUND NOISE - IMSERTION LOSS <MENU 키> <1번째줄. DMM> 1) DCV (TIP_RNG, TIP_GND, RNG_GND, STORE) TYPE : TIP_RNG T-R : ?.??? V T-G : ?.??? V R-G : ?.??? V 2) ACV (TIP_RNG, TIP_GND, RNG_GND, STORE) TYPE : TIP_RNG T-R : ?.??? V T-G : ?.??? V R-G : ?.??? V 3) OHM (TIP_RNG, TIP_GND, RNG_GND, STORE) TYPE : TIP_RNG T-R : ?.??? MO (또는 > 5 MO) T-G : ?.??? MO (또는 > 5MO) R-G : ?.??? MO (또는 > 5MO) 4) CAP (TIP_RNG, TIP_GND, RNG_GND, STORE) TYPE : TIP_RNG T-R : ?.??? nF T-G : ?.??? nF R-G : ?.??? Nf DIST (FT 또는 M) : ???? IMPULSE NOISE COUNT ET- 00:00:50 LOW : 78 dBrn RT- 00:00:10 MID : 82 dBrn (TIME OUT) HIGH : 86 dBrn LOW : ??? MID : ??? HIGH : ??? STORE RESTART LOOP RESISTANCE TYPE : TIP_RNG, TIP_GND, RNG_GND, (more) STORE, RESTART TEMP (C) : -17.8 ~ 93.3 (INC, DEC, STORE, RESTART) ???.??? (또는 OPEN) DIST ( 0.6 mm ) : DIST ( 0.5 mm ) : DIST ( 0.4 mm ) :

  9. TDR 02:30:03 DISTANCE: ???? FEET(또는 METERS) 1287 [30 ] [ ] [O: 0 ] [H: 16 ] [V: 1.00] MARKER: 5 0 0 0 f t < > CURSOR GAIN ZOOM_IN ZOOM_OT SEARCH more PG_LFT PG_RGT SEARCH more +OFFSET -OFFSET SEARCH more MARKER ALIGN SEARCH more HOLD STORE SEARCH more << SunSet xDSL (Alcatel, ADI) - 선로 TEST 메뉴 구조 (2) >> <3번째줄. TDR (TIME DOMAIN REFLECTORMETER)> * UNITS : ENGLISH 일 경우 - GAUGE : ?? AWG (24, 26, (START), (more), 19, 22, (START), (more), 28) - VP : 0.40 ~ 0.99 (+0.01, -0.01, (START), (more), +0.1, -0.1, (START) - AVG : 1~5 (+1, -1, START) ============================================================ * UNITS : METRIC 일 경우 - GAUGE : 0.? mm (0.4, 0.5, (START), (more), 0.6, 0.9, (START), (more), 0.3) - VP : 0.40 ~ 0.99 (+0.01, -0.01, (START), (more), +0.1, -0.1, (START) - AVG : 1~5 (+1, -1, START) <4번째줄. OTHER SETUP> 1) NV RAM ERASE 2) MANUFACTURE PROFILE 3) SYSTEM CONFIG - LANGUAGE : ENGLISH, JAPANES - UNIT : ENGLISH, METRIC - BACK LIGHT : CONTINUE, TIMED 4) SYSTEM CLOCK (INC, DEC, SET) - DATE (M / D / Y) : 02 / 15 / 2000 - TIME (H : M : S) : 02 : 03 : 32 5) SERIAL PORT CNFG - BAUD_RATE :1200, 2400, 9600, 19200 - PARITY BIT : NO, ODD, EVEN - STOP_BIT : 1-BIT, 2-BIT - DATA_SIZE : 5 BIT, 6 BIT, 7 BIT, 8 BIT - CR/LF INSRT : CR, CR+LF - PRINT MODE : TEXT, GRAPHIC - PRINT FORMAT : PRINTER, VT100 6) VERSION / OPTION - VERSION 2.00 - S/N 007801 - MODULE : TYPE ADSL ATUC S/N 001802 RV# 01 - OPTION : AA0 : Regular Set AB : Ping Test AD7 : TDR / LINE / DMM AG : TDR J <STATUS 키> <VOLUME 키> <AUTO 키> <LIGHT 키> <HISTORY 키> <ERR INJ 키> <CONTRAST / PRINT 키>

  10. frame 0 frame 1 frame 2 frame 34 frame 35 frame 66 frame 67 Sync frame Fast data buffer Interleaved data buffer Fast byte Fast data bytes FEC bytes Interleaved data bytes R bytes N bytes N bytes K bytes I F F F << ADSL superframe structure >> Superframe (17 msec) ib = indicator bit crc0-7 in fast and sync byte ib8-15 in fast byte ib16-23 in fast byte ib0-7 in fast byte No user or bit- level data Data frame buffer (68/69 x 250 usec) 1 byte Mux data frame, point A FEC output (point B) or constellation encoder input (point C) data frame Constellation encoder input data frame (point C)

  11. Customer Premeise Network Broadband Network Narrowband Network CRC CRC F F CRC CRC I I T-R T/S NT V-C << ADSL 참조 모델 >> SM ATU-R P H Y P H Y ATU-C Signal lines Interfaces SM U-C2 U-R2 Splitter R Splitter C U-C U-R HPF HPF PSTN POTS loop Telephone set or Voice-band modem LPF LPF << STM 계열 >> “Bits” & “Gains” Xn n=0 to 511 “Bits” & “Gains” Xn n=0 to 511 “Bits” “Bits” Mux/ Sync Control Constel lation encoder and gain scaling Output Par/ Serial buffer IDFT Tone orde- ring 511 AS0 Mux/ Sync Control AS0 Constel lation encoder and gain scaling IDFT Tone orde- ring Output Par/ Serial buffer 510 Scram & FEC AS1 Scram & FEC AS1 AS2 AS2 480 AS3 AS3 LS0 LS0 LS1 n=1 LS1 Scram & FEC Inter- leaver n=0 Scram & FEC Inter- leaver LS2 LS2 NTR NTR C constellation encoder input data frame B FEC output data frame Zi i=0 to 255 A mux data frame C Constellation encoder input data frame ib DAC and analog processign B FEC output data frame A Mux data frame U-C2 Zi i=0 to 255 DAC and analog processign eoc/ aoc V-C

More Related