ADC H2TU-C-231 manuale d’uso

HiGain HiGain U SER M ANUAL 2 H2TU-C-231 List 2 Line Unit Produc t Catalog : H2TU-C -231-L2 CLEI: VACJDLY E[...]

LTPH-UM-110 9-01, Issue 1 ii January 9 , 2002 H2TU-C-2 31 List 2 Revision History of This Pra ctice Copyright Janu ary 9, 200 2 © 2002 ADC DSL Systems, Inc. All rights reserved. Trademark I nformation ADC is a regi stered trademar k of ADC Telecommun ication s, Inc. HiGai n is a registere d trademark o f ADC DSL Systems , Inc. No right , license, [...]

LTPH-UM-110 9-01, Issue 1 Using Th is Manual H2TU-C-231 List 2 January 9, 20 02 iii U SING T HIS M ANUAL The followin g conventions are used i n this manual: • Monospace type indicates screen text. • Keys you pres s are indicated by small ico ns such as or . Key combinations to be pressed simultaneousl y are indicated with a plus sign as follow[...]

Inspecting Sh ipment LTPH-UM-110 9-01, Issue 1 iv January 9 , 2002 H2TU-C-2 31 List 2[...]

LTPH-UM-110 9-01, Issue 1 Tabl e of Con tent s H2TU-C-231 List 2 January 9 , 2002 v T ABLE OF C ONTENTS Overview _ _________ ________ ______ ________ _________ ________ ________ _________ ________ __ 1 Features ............. ................. ........... ................. ................. ................. ................. .......... ....... ....[...]

Table of Con tents LTPH-UM-110 9-01, Issue 1 vi Jan uary 9, 2002 H2TU -C-231 L ist 2 Test ing _______ _________ _____ _________ ________ _________ ________ _________ _____ ________ 4 0 System Alarms....................... ................. ................. ................. ................. ................ ............ .......... 4 0 Alarm Optio[...]

LTPH-UM-110 9-01, Issue 1 List of Fi gures H2TU-C-231 List 2 January 9 , 2002 vii L IST OF F IGURES 1. H2TU-C-231 List 2 Front Panel ............. ................. ................. ........... ................. ................. ........ ......... .......... 3 2. Installing the H2TU-C-231 List 2 into a Shelf ......................... ............[...]

List of Tables LTPH-UM-110 9-01, Issue 1 viii January 9 , 2002 H2TU -C-231 Li st 2 L IST OF T ABLES 1. Front-Panel Description ................. ................. ................. ................. ........... ................. ....... .......... ............... ... 4 2. Front-Panel Display Messages ....... ................. ................. ....[...]

LTPH-UM-110 9-01, Issue 1 Over view H2TU-C-231 List 2 January 9 , 2002 1 O VERVIEW The H2TU-C- 231 List 2 line un it is the Central Of fice (CO) s ide of a T1 transmissi on system . The HiG ain™ HDSL2 product fam ily is fully complian t with the HD SL2 standard ANSI T1.418-20 00. Providing full-rate T1 access using just a single copper pair, HDSL[...]

Overvi ew LTPH-UM-110 9-01, Issue 1 2 Jan uary 9, 2002 H2TU -C-231 List 2 – Remo te provi sio ning – Selectable loopback activation codes • Addit ion al (Loo pbac k Timeo ut) LB TO setti ngs of 8 hou rs and 24 hou rs • Compatible with Small Cross-Section Shelf (SXSS) and equipment C OMPATIBILITY The H2TU-C-231 List 2 is designed to mount in[...]

LTPH-UM-110 9-01, Issue 1 Front Pa nel H2TU-C-231 List 2 January 9 , 2002 3 F RON T P ANEL Figur e 1 show s the H2 TU- C-231 L ist 2 fro nt pan el. Table 1 on page 4 describes the front-pan el components. For a list of f ront- panel di splay m essage s, refe r to “Front-Panel Display Messages” on page 5 . For pinout diagr ams of the H2TU-C card[...]

Front P anel LTPH -UM-1109-01 , Issue 1 4 Jan uary 9, 2002 H2TU -C-231 List 2 Table 1. Front-Panel Descriptio n Front-Pa nel Featu re Functi on Front- panel di splay Displays f our-character st atus, provi sioning, and alarm system messages. Th e front-pane l display illuminates when power is in itially ap plied. To conserve power, the displa y onl[...]

LTPH-UM-110 9-01, Issue 1 Front Pa nel H2TU-C-231 List 2 January 9 , 2002 5 Table 2 lists the front-panel display messages. The four-character display rep orts the code of a pertinent alarm, loopback, or diagnostic message and, in some cases, is fo llowed by a second four-character messag e that modifies the first message with a value or current co[...]

Front P anel LTPH -UM-1109-01 , Issue 1 6 Jan uary 9, 2002 H2TU -C-231 List 2 NREM Netwo rk Remote Loopba ck DSX-1 sign al is loop ed back to t he network at the H2TU-R. RULB Remo te Unit Lo opback Dual lo opback a t the H 2TU-R. SMJK Remote SmartJac k Loopback DSX-1 signal is looped ba ck to the net work at the H2TU-R SmartJack module. DIAGNOSTIC [...]

LTPH-UM-110 9-01, Issue 1 Instal lation H2TU-C-231 List 2 January 9 , 2002 7 I NSTA LLA TION Figur e 2. I nstalling the H2TU-C-231 List 2 i nto a S helf 1 Align the H2TU-C wi th the enclosure s lot guides and slid e the unit in. Push the u nit back until it tou ches the backplane card-edge connector and the retaining latch on the front panel opens.[...]

Installation LTPH -UM-1109-01 , Issue 1 8 Jan uary 9, 2002 H2TU -C-231 List 2 V ERIFICATION Once the H2TU-C-231 is installed, verify that it is o peratin g properly. To do this, m onito r the f ollowin g: • Status LED (see F i g u r e1o np a g e3 ) • Status messages reported by the front-panel d isplay (see Table 2 on page 5 ) Verification with[...]

LTPH-UM-110 9-01, Issue 1 Prov isioni ng H2TU-C-231 List 2 January 9 , 2002 9 P ROVISIONING There are two methods for provisio ning: • Use the MODE and SEL p ushbuttons on the fr ont panel of the H2T U-C to: – Set system op tions – Reset the H2TU-C to its facto ry default settings for sy stem options – Display system option settings (scro l[...]

Prov isioni ng LTP H-UM-1109-01 , Issue 1 10 J anuary 9, 20 02 H2TU-C-231 List 2 Resetting to Factory Default Values A l l u s e ro p t i o n sf o rt h eH 2 T U - C - 2 3 1L i s t2( T able 6 on page 18 ) can be set to t he factory default values using the MODE and SE L pus hbut tons . To set t he user opti ons to the ir def ault va lues: 1 Press t [...]

LTPH-UM-110 9-01, Issue 1 Prov isioni ng H2TU-C-231 List 2 January 9 , 2002 11 U SING A M AINTENANCE T ERMINAL Connecting to a Maintenance Ter minal The cr aft po rt on the f ront p anel al lows you to co nnect t he H 2TU-C- 231 to a ma inte nance t erm inal (AS CII terminal or PC running a termin al emulation program). Once con nected to a mainten[...]

Prov isioni ng LTP H-UM-1109-01 , Issue 1 12 J anuary 9, 20 02 H2TU-C-231 List 2 Figur e 3. Logon Screen Most VT100 emu lation programs support a print screen option. For Wind ows-based prog rams, such as Procomm or HyperTe rminal, do the following: 1 Highligh t the screen that y ou wish to p rint. 2 Click F ile ,t h e n Print . 3 In the Print dial[...]

LTPH-UM-110 9-01, Issue 1 Prov isioni ng H2TU-C-231 List 2 January 9 , 2002 13 P ROVISIONING T ASKS After H2TU-C-231 is successfully installed, perform t hese basic provisioning tasks. • S e td a t ea n dt i m e( s e e “ Setting D ate and Time ” below) • Set circuit I D numbers (see “ Setting Circuit ID Numbers ” on page 14 ) • Make a[...]

Prov isioni ng LTP H-UM-1109-01 , Issue 1 14 J anuary 9, 20 02 H2TU-C-231 List 2 4 Type the time i n the format indicated (entering seconds is optional), then press . Setting C ircuit ID Numbers The Inventory screen provides product information on all units in the system and allows setting of the circuit and unit identificatio n numbers. Figur e 5.[...]

LTPH-UM-110 9-01, Issue 1 Prov isioni ng H2TU-C-231 List 2 January 9 , 2002 15 Configuring the System T h eC o n f i gm e n u( Figure 6 ) allows you to m ake the fol lowing types of system configuratio n changes: • Standard o ptions ( F i g u r e 7o np a g e1 6 ) • ADC options ( F i g u r e 8o np a g e 1 6 ) • BERT Genera tor ( Figure 29 on p[...]

Prov isioni ng LTP H-UM-1109-01 , Issue 1 16 J anuary 9, 20 02 H2TU-C-231 List 2 Figur e 7. Config Menu - Stan dard Options (d efaults shown ) Figur e 8. Config Menu - ADC Optio ns (de faults sho wn) M onitor P erformance E vent Log C onfig I nventor y Rep o rt R logon H elp +----------------------+ | Standard Options -> | +---------------------[...]

LTPH-UM-110 9-01, Issue 1 Prov isioni ng H2TU-C-231 List 2 January 9 , 2002 17 Table 5 descri bes t he St andar d Con fig me nu opt ions a nd Table 6 on page 18 des crib es th e ADC Conf ig me nu options. Selections in bold type in dicate factory default settings. Table 5. H2TU-C-231 List 2 Standar d Config Menu Option s Standa rd Conf ig Menu Opti[...]

Prov isioni ng LTP H-UM-1109-01 , Issue 1 18 J anuary 9, 20 02 H2TU-C-231 List 2 H2T U-R Line Buildo ut RLBO Sets the DS1 rec eive level output towa rd the Custome r Interface (C I). H2TU-R Line Bu ildout can only be set through th e maintenanc e screens. 0 dB Sets the DS1 RLBO level toward the CI to 0 dB. -7.5 dB Sets the DS1 RLB O level toward th[...]

LTPH-UM-110 9-01, Issue 1 Prov isioni ng H2TU-C-231 List 2 January 9 , 2002 19 DS1 Line Coding (DS1) Option. The DS1 line co de option should always be s et to conform to t he type of DS1 service (AMI or B8ZS) being provided by the HiGain HDSL2 system. The Auto mode, which can adapt to either AMI or B8ZS, should only be used in applications that re[...]

Prov isioni ng LTP H-UM-1109-01 , Issue 1 20 J anuary 9, 20 02 H2TU-C-231 List 2 H2TU-C Equalization (EQL) Opti on. The equalizer shapes the DS1 output signal of the H2TU-C to conform to a very specific pul se template when it arrives at the DSX-1 cross-connect point. The degree of pulse-shaping required is a function of the distance b etween the H[...]

LTPH-UM-110 9-01, Issue 1 Prov isioni ng H2TU-C-231 List 2 January 9 , 2002 21 DS1 BER (DBER) Option. The DS1 BER alarm occurs when any of the DS1 or DSX-1 performance monitoring para meters listed i n Table 7 exceed the coun ts shown for the 24-hour period between 12:00:00 AM throug h 11:59:5 9 PM. These thresholds correspond t o a 10 -6 BER. All [...]

Prov isioni ng LTP H-UM-1109-01 , Issue 1 22 J anuary 9, 20 02 H2TU-C-231 List 2 Resetting to Fact ory Defaults To reset the H2 TU-C-231 List 2 to its original f actory defaults: 1 Press to select the Config menu. 2 Use the and arrow keys to select Set Factory Defaults ,t h e np r e s s . 3 Press to reset the H2TU-C, or press to cancel this action.[...]

LTPH-UM-110 9-01, Issue 1 Prov isioni ng H2TU-C-231 List 2 January 9 , 2002 23 Clearing the History, Alarm, an d Event Log Screens Select Master Clear to clear the History, Alarm, and Event Log screens after the system has been installed and is functioning p roperly. This remov es miscellaneous data acqu ired during the startup session an d ensures[...]

Monitoring Sy stem Activity an d Performance LTPH-UM-110 9-01, Issue 1 24 J anuary 9, 20 02 H2TU-C-231 List 2 M ONIT ORING S YSTEM A C TIVITY AND P ERFORMAN CE The HDSL2 sys tem provides the following mainten ance screens for monito ring syst em activity and ass essing performance. • The Monitor screens provide a graphical representatio n of circ[...]

LTPH-UM -1109-01, Issue 1 Monitorin g System Acti vity and Performan ce H2TU-C-231 List 2 January 9 , 2002 25 3 To initiate a loopdown of all activ e loopbacks, press the to select LPDN , then pres s or . When prompted with the m essage: Are you sure (Y/N)? , p ress t o initiate the loopdown o r to cancel. Table 8. Monitor Screen Descriptions Field[...]

Monitoring Sy stem Activity an d Performance LTPH-UM-110 9-01, Issue 1 26 J anuary 9, 20 02 H2TU-C-231 List 2 U SING THE P ERFORMANCE S CREENS TO V IEW P ERFORMANCE D ATA The Performance screens display: • CRC statis tics for the HDSL2 or DS1 interface in 31-day, 48-ho ur, 25-hour, and cu rrent history r eports. • Alarm statistics for the HD SL[...]

LTPH-UM -1109-01, Issue 1 Monitorin g System Acti vity and Performan ce H2TU-C-231 List 2 January 9 , 2002 27 Figur e 13. H2 TU-C DS1 48-Hour Performa nce History Figur e 14. H2TU- R DS1 25- Hour P erf orma nce Hi sto ry M onitor P erformance E vent Log C onfig I nventor y Rep o rt R logon H elp H2TU-C DS1 48-Hour History (Page 1 of 4) ------------[...]

Monitoring Sy stem Activity an d Performance LTPH-UM-110 9-01, Issue 1 28 J anuary 9, 20 02 H2TU-C-231 List 2 Examples of current s tatistics screens are shown below. Figure 15 and Figu re 16 show s tatistics for th e DS1 interface at the remote unit an d line unit, respectively. These s creens report 1-day, 1-hour, and 15-minute statistics. Figur [...]

LTPH-UM -1109-01, Issue 1 Monitorin g System Acti vity and Performan ce H2TU-C-231 List 2 January 9 , 2002 29 Table 9. Acronyms Used on the DS1 Perform ance History Scr eens Error Acr onym Description E rror Acronym De scription CV-L Co de Vi olatio n - Line Total BP V count. SES-P Severely Errored Second s - Path Second s with SES or CRC (ESF) ≥[...]

Monitoring Sy stem Activity an d Performance LTPH-UM-110 9-01, Issue 1 30 J anuary 9, 20 02 H2TU-C-231 List 2 Performance History at the HDSL2 Interface The H DSL2 in terfa ce has 31-d ay, 48 -hour , 25-h our, a nd cur rent statis tic sc reens for th e H2TU -C. Fig ure 17 and Figur e 18 below are examples of 31-d ay and 48-hour perfo rmance history[...]

LTPH-UM -1109-01, Issue 1 Monitorin g System Acti vity and Performan ce H2TU-C-231 List 2 January 9 , 2002 31 Figure 1 9. H2TU-C HDS L2 25-Hour Performa nce History Figure 20. H2 TU-C HDSL2 Cu rrent Statis tics M onitor P erformance E vent Log C onfig I nventor y Rep o rt R logon H elp H2TU-C HDSL2 25-Hour Histo ry (Page 1 of 9) -------------------[...]

Monitoring Sy stem Activity an d Performance LTPH-UM-110 9-01, Issue 1 32 J anuary 9, 20 02 H2TU-C-231 List 2 U SING THE P ERFORMANCE S CREENS TO V IEW A LARM D ATA To access the alarm history screens: 1 Press to select the Performance screen. 2 Press the to select an interface ( H2TU-C DS 1, H2 TU-R D S1, H2 TU- C HDSL2, or H2TU-R HDSL2 ), then pr[...]

LTPH-UM -1109-01, Issue 1 Monitorin g System Acti vity and Performan ce H2TU-C-231 List 2 January 9 , 2002 33 Alarm History at the DS1 Inte rface The Alarm History screen reports DS1 statistics for the H2TU-C ( F igure 21 ) and the H2TU- R ( Figur e 22 )o na continuo us basis. T a b l e 1 1o np a g e3 4 displays the types of alarms repo rted for bo[...]

Monitoring Sy stem Activity an d Performance LTPH-UM-110 9-01, Issue 1 34 J anuary 9, 20 02 H2TU-C-231 List 2 Table 11. DS1 Alarm Descr iptions Scr een Alar m Front -Pane l Alar m Descripti on H2TU-C DS1 AL ARMS (se e Figur e 21 o n page 33 ) LLOS (a) (a) Issues a minor alarm ( sent to the management unit or the backplane), if enabled. LLOS Li ne ([...]

LTPH-UM -1109-01, Issue 1 Monitorin g System Acti vity and Performan ce H2TU-C-231 List 2 January 9 , 2002 35 Alarm History a t the HDSL2 In terface The HDSL2 Alarm History screens report alarms at the H2TU-C and the H2TU-R. Figur e 23 shows the H 2TU-C HDSL2 alarm history and Tab le 12 below describes the alarms that ar e reported at the H2TU-C-23[...]

Monitoring Sy stem Activity an d Performance LTPH-UM-110 9-01, Issue 1 36 J anuary 9, 20 02 H2TU-C-231 List 2 U SING THE S YSTEM E VENT L OG TO T RACK E VENTS To view a running lo g of system events, press to select the Event Log. The Ev ent Log displays the date and time of the 100 most recent ev ents (the most recent displayed firs t) and provide[...]

LTPH-UM -1109-01, Issue 1 Monitorin g System Acti vity and Performan ce H2TU-C-231 List 2 January 9 , 2002 37 U SING THE R EPORT M ENU The Report menu ( Figure 25 ) provides screens co ntaining status and p erformance monitor ing data for line and remote units which can be down loaded to a file for analysis or future r eference. T a b l e 1 3o np a[...]

Monitoring Sy stem Activity an d Performance LTPH-UM-110 9-01, Issue 1 38 J anuary 9, 20 02 H2TU-C-231 List 2 Table 13. Report Types Type Con tains the following informatio n: Full Report • Circu it and unit identifi cation s • Product informati on • System co nfigurat ion • Current performa nce statistics • Alar m histor y • Perfo rman[...]

LTPH-UM -1109-01, Issue 1 Monitorin g System Acti vity and Performan ce H2TU-C-231 List 2 January 9 , 2002 39 Table 14. Event L og Entry Messages List Event Lo g Message s DS1 Alarm Hi story reset DS1 PM regi ster reset HDSL2 Ala rm History reset HDSL2 PM regist er reset Loop D o wn ( any se gment) Loop Up (any segment ) Provi sionin g optio n chan[...]

Testing LTPH-UM-110 9-01, Issue 1 40 J anuary 9, 20 02 H2TU-C-231 List 2 T ESTING This section provides information abou t front-panel system alarms, LOS and AIS response, OCT55 test procedure, and loopback testing. S YSTEM A LARMS Table 15 summarizes all possible HDSL2 sy stem alarms in order of priority as t hey appear on the front panel. When mu[...]

LTPH-UM-110 9-01, Issue 1 Testing H2TU-C-231 List 2 January 9 , 2002 41 Alarm Option for Digital Loop Carrier (DLC) Feed To improve HiGain HDSL2 co mpatibility with the switch -to-protect features used in DLC feeder ap plications, the H2TU-C-231 has an Alarm Pattern ( ALMP) option that a llows you to select either an AIS o r LOS DS1 output payload [...]

Testing LTPH-UM-110 9-01, Issue 1 42 J anuary 9, 20 02 H2TU-C-231 List 2 Remote LOS and AIS Response Figur e 26 shows the d ifferent ways the H2TU-R can res pond to th e network, d epending o n the conf iguration o f the N LBP, TLOS, RDA, and ALMP configuration o ptions described in Tabl e 5 on page 17 and Table 6 on page 18 . Figu re 26. H2TU-R LO[...]

LTPH-UM-110 9-01, Issue 1 Testing H2TU-C-231 List 2 January 9 , 2002 43 L OOPBACK O PERATION HiGain HDSL2 has a family of loopback options for analyzing circuit functionality. The loopback signal is transmitted and returned to the send ing device for com parison. This allows you to verify the i ntegrity of the HDSL2 channels to the H 2TU-C, the H2T[...]

Testing LTPH-UM-110 9-01, Issue 1 44 J anuary 9, 20 02 H2TU-C-231 List 2 Table 16. Summa ry of HiGain HDSL2 Loopback Codes and Activation Methods Metho d of Activation Loopba ck Co de Descripti o n Test Set Craft Port MODE/SEL NLOC 1111000 4-in-7 DSX-1 sign al is looped back to the ne twork at the H 2TU-C. X X X NREM 1110000 3-in-7 DSX-1 signal is [...]

LTPH-UM-110 9-01, Issue 1 Testing H2TU-C-231 List 2 January 9 , 2002 45 Special Loopback Commands In addition to the GNLB loopback command mode, a HiGain HDSL2 system can be configured for one of fi ve special loopback command modes. Th ese are selected from the mainte nance terminal System Settings screen (see Table 6 on pag e 18 )o rb yu s i n gt[...]

Testing LTPH-UM-110 9-01, Issue 1 46 J anuary 9, 20 02 H2TU-C-231 List 2 Manual Loopback Session A manual loopback session allows you to select any one of the HiGain HDSL2 loopbacks listed in Table 16 on page 44 with the exception of SmartJack loopbacks, which can only be issued by inband commands. Setting the Loopback Time-Out Option Before initia[...]

LTPH-UM-110 9-01, Issue 1 Testing H2TU-C-231 List 2 January 9 , 2002 47 • COL? = dual loop back at H2TU-C. • RUL? = dual loop back at H2TU-R. 4 Press SEL to activate the selected loopback. The previous loopb ack is terminated. Once a loopback i s selected and activated , the loopback stay s active until it ti mes out (based on t he LBTO settin [...]

Testing LTPH-UM-110 9-01, Issue 1 48 J anuary 9, 20 02 H2TU-C-231 List 2 4 Have the CO tester send the NLOC (4-in-7) inband loop up for 5 seconds. You should be able to observe the NLOC message on th e front-panel display. (The Status LED on the front panel should be yellow, and the loopback mode should also be identified on the Monitor screen.) 5 [...]

LTPH-UM-110 9-01, Issue 1 Testing H2TU-C-231 List 2 January 9 , 2002 49 A1LB, A2LB, and A5LB Test Procedures Using the co des listed in Table 17 , a network tester can activate NLOC or NREM loop backs (or SMJK, if enabled). A tester at the customer premises can activate CLOC, CRG, or CREM loopbacks. All loopbacks shown in Table 17 can also be initi[...]

Testing LTPH-UM-110 9-01, Issue 1 50 J anuary 9, 20 02 H2TU-C-231 List 2 To perform the A1LB, A2LB, and the A5LB loopback test procedures : 1 Send the inband Arming and NI LPBK code 1100 0 to the H2TU-C-23 1 for at least 5 secon ds. 2 Monitor the output of the H2TU-C-231 for the return of the pattern. Return of the pattern indicates one of the foll[...]

LTPH-UM-110 9-01, Issue 1 Testing H2TU-C-231 List 2 January 9 , 2002 51 A3LB and A4LB T est Proce dures The H2TU-C-231 can be looped back by sending the Addressab le Office Repeater (AOR) LPBK activation code 1111-11 11-0001-1 110 (FF1E) for at least 5 seconds . This cause s the H2TU-C-23 1 to enter the N LOC state. The Loopback Time-Out setting (s[...]

Testing LTPH-UM-110 9-01, Issue 1 52 J anuary 9, 20 02 H2TU-C-231 List 2 T ESTING WITH H2TU-C BERT G ENERATOR The H2TU-C BERT Generator screen allows transmission of a selected test signal from the H2TU-C towards either the network (NET) or customer (CPE). Bit error rates are calculated and display on the Monitor screen. 1 Press to select the Confi[...]

LTPH-UM-110 9-01, Issue 1 Testing H2TU-C-231 List 2 January 9 , 2002 53 T ESTING WITH H2TU-R BERT G ENERATOR The H2TU-R BE RT Generator screen allows transmission of a test signal from the H2TU-R towards either the network (NET) or customer (CPE). Bit error rates are calculated and display on the Monitor screen. 1 Press t o logon remotely, then pre[...]

Appendi x A - Spe cifica tions LTPH-UM-110 9-01, Issue 1 54 J anuary 9, 20 02 H2TU-C-231 List 2 A PPENDIX A-S PECIF ICATIO NS Power HDSL2 Spa n Voltage 0 or -180 Vdc ±5 Vdc CO Sup ply -48 Vd c nominal (-42.5 to -56.5 V dc) (See “ Power Co nsumpt ion ” , “ Maximum Power Dissip ation ” , and “ Maximum Cu rrent Drain ” on p age 5 5 .) Ele[...]

LTPH-UM-110 9-01, Issue 1 Appen dix A - Sp ecificat ions H2TU-C-231 List 2 January 9 , 2002 55 P OWER C ONSUMPTION The three most important power parameters of an H2TU-C are its maximum power consumption, maximum power dissipation, and maximum current drain. Table 20 describes line-p owered and locally powered cir cuits on 9 kft, 26 AWG loops. M AX[...]

Appendi x A - Spe cifica tions LTPH-UM-110 9-01, Issue 1 56 J anuary 9, 20 02 H2TU-C-231 List 2 L OOP A TTENUATION ,I NSERTION L OSS , AND R EACH Each loop has n o more than 35 dB of los s at 196 kHz, w ith driving and ter minating impedances o f 135 Ω ,a ss h o w n in Table 21 b elow. This is equiv alent to no more than 28 dB l oop attenuation. [...]

LTPH-UM-110 9-01, Issue 1 Appen dix A - Sp ecificat ions H2TU-C-231 List 2 January 9 , 2002 57 H2TU-C-231 L IST 2C ARD -E DGE C ONNECTOR Figur e 31 sho ws the c ard- edge co nnec tors on t he H2T U-C-2 31 List 2 . Activ e pins ar e high light ed in bla ck. Figur e 31. H2TU-C-231 List 2 Card- Edge Connector Network Management Control Bus The H2TU-C-[...]

Appendi x A - Spe cifica tions LTPH-UM-110 9-01, Issue 1 58 J anuary 9, 20 02 H2TU-C-231 List 2 Fuse Alarm Pin 32 on the card- edge connector is a fuse al arm that is driven to -4 8 Vdc through a diode whenever the on board fuse opens. System Alarm Output Pins Pins 20 and 21 o n the card-edge conn ector (see Figu re 31 on pag e 57 ) are the H2TU-C-[...]

LTPH-UM-110 9-01, Issue 1 Appen dix B - Func tional Oper ation H2TU-C-231 List 2 January 9 , 2002 59 A PPENDIX B-F UNCTIONA L O PERAT ION ADC HDSL2 technology provides full-dup lex services at standard DS1 rates over copper wires between an H2TU-C and an H2TU-R, which comprise one HiGain HDSL2 system. HiGain HDSL2 systems use Overlapped Pulse Amp l[...]

Appendi x C - Compa tibility LTPH-UM-110 9-01, Issue 1 60 J anuary 9, 20 02 H2TU-C-231 List 2 A PPENDIX C-C OMPATIBILITY The HiGain system uses HDSL2 transmission technology as recommended by Bellcore TA-TSY-001210. HiGain HDSL2 complies with GR-63-C ORE, TR-TSY-000499, and GR-1 089-CORE. The H2TU-C-231 List 2 is compatible with the following DS1 r[...]

LTPH-UM-110 9-01, Issue 1 Appendi x D - Produc t Support H2TU-C-231 List 2 January 9 , 2002 61 A PPENDIX D-P RODUC T S UPPORT ADC Customer Service Group provides expert pr e-sales and post-sales support and training for all its products. Technical support is a vailable 24 hours a day, 7 days a week by con tacting the ADC Technical Assistance Center[...]

Appendi x E - Abbrev iations LTPH-UM- 1109-01, Issue 1 62 J anuary 9, 20 02 H2TU-C-231 List 2 A PPENDIX E-A BBREVI ATIONS A ACO: Alar m C uto ff ADSL: Asymmet ric Digital S ubscriber Lin e AIS: Alarm Indi cation Signal ALM: Minor A larm ALMP: Alarm Pattern AMI : A lternate Mark Inversion ANSI : Am erican Nati onal Stand ards Inst itute AOR: Addre s[...]

LTPH-UM-110 9-01, Issue 1 Appe ndix E - Abbrevia tions H2TU-C-231 List 2 January 9 , 2002 63 LBPV: Lo cal Bipo lar Viol ation LBTO: Loopbac k Timeout LED: Ligh t E mitti ng Di ode LLOS : Line (Unit) Loss of Si gnal LOS: Loss of S ignal LOSW: Loss of Sync Wor d LOSWS: Lo ss of Sync Word Second LPDN: Lo opdown LPF: Line Powe r Feed LRAI: Line RA I M [...]

Appendi x E - Abbrev iations LTPH-UM- 1109-01, Issue 1 64 J anuary 9, 20 02 H2TU-C-231 List 2[...]

C ERTI FICA TION AN D W ARRANTY FCC C LASS AC OMPLIANC E This equi pment has be en tested and fou nd to compl y with the limits for a C lass A digital dev ice, pursuan t to Part 15 of the FCC Rul es. These limits are d esigned to provi de reasona ble protec tion against h armful interfe rence whe n the equipmen t is operat ed in a commerc ial envir[...]

ADC DSL Systems, Inc. 14402 F ranklin Aven ue Tustin, CA 9278 0-7013 Tel: 714.8 32.99 22 Fax: 714. 832. 9924 Technical Assistance Tel: 800.6 38.00 31 Tel: 714.7 30.32 22 Fax: 714. 730. 2400 DNV C ertific ation, Inc. REGISTERED FIRM IS O 9001/TL 9000 D OCU MEN T : LTPH-UM -1109-01, I SSUE 1 ´,*r¶7j¨ 1210827[...]