ADC H2TU-C-319 List 4E manuale d’uso

HiGain HiGain U SER M ANUAL L B K M O D E SETUP ST A TUS R S 2 3 2 O U T I N B R G B R G L I N E L I N E H 2 T U * C 3 1 9 L 4E HDSL2 HiGain DCE H2TU-C-319 List 4E Product Catalog: H2TU-C- L4E CLEI Code: VACHYVYG[...]

LTPH-UM-104 9-02, Issue 2 ii January 9 , 2002 H2TU-C- 319 List 4E Revision History of This Manual Copyright Januar y 9, 2002 © 2 0 0 2 ADC D S L S y stems, In c . All ri g h ts rese r ve d . Tradem ark Informa tion ADC is a registered trademark of AD C Telecommuni cations, In c. HiGain is a regi stered t rademark o f ADC DSL S ystems, Inc . No rig[...]

LTPH-UM-104 9-02, Issue 2 Using This Man ual H2TU-C-319 List 4E January 9, 2002 iii U SING T HIS M ANUAL The following conven tions are used in this man ual: • Monospace type indicates screen text. • Keys you pres s are indicated by small icons such as or . Key combinations to be pressed simultaneously are in dicated with a plus sign as fo llow[...]

Inspecting Sh ipment LTPH-UM-104 9-02, Issue 2 iv January 9 , 2002 H2TU-C- 319 List 4E[...]

LTPH-UM-104 9-02, Issue 2 Table of Cont ent s H2TU-C-319 List 4E January 9 , 2002 v T ABLE OF C ONTENTS Overview _ ______ ________ _________ _____ _________ ________ ______ ________ ______ ________ __ 1 Features ............. ........... ................. ................. ............ ................. ........... ................. .... ..........[...]

Table of Content s LTPH-UM-104 9-02, Issue 2 vi January 9, 20 02 H2TU-C-319 List 4E Test ing ____ _________ ________ ______ ________ ______ _________ ________ ______ ________ _____ 5 2 System Alarms............ ................ ............ ................. ................. ........... ................. ........... ............... . 52 Alarm Opti[...]

LTPH-UM-104 9-02, Issue 2 List of Figu res H2TU-C-319 List 4E January 9 , 2002 vii L IST OF F IGURES 1. H2TU-C-319 List 4E Front Panel .................... ........... ................. ................. ........... ................. .. .......... .......... 3 2. Installing the H2TU-C-319 List 4E into a Shelf ..................... .................[...]

List of Tables LTPH-UM-104 9-02 , Issue 2 viii January 9 , 2002 H2TU-C-319 List 4E L IST OF T ABLES 1. Front-Panel Description ................ ................. ................. ........... ................. ................. ....... .... ................. ....... 4 2. Front-Panel Display Messages ................. ................. .............[...]

LTPH-UM -104 9-02, Issue 2 Overview H2TU-C-319 List 4E January 9, 2002 1 O VERVIEW The H2TU-C-319 Lis t 4E (H2TU-C) line unit is the Cen tral Office (CO) side of a T1 transmission system. The HiGain HD SL2 product family i s fully compliant with the HDSL2 standard ANSI T1.41 8. Providing full-r ate T1 access using a single copper pa ir, HDSL2 is a [...]

Overvi ew L TPH-UM -1049- 02, Is sue 2 2 January 9, 2002 H2TU-C- 319 List 4E • Config uration op tions – Selectable DS1 pre-equalizer – Bipolar Vio lation Transparency (BPVT) options – Bit Erro r Rate (BER) alarm – Power Back Off Network ( PBON) and Power B ack Off Cus tomer (PBOC) options for configu ring outp ut levels – Loss of Signa[...]

LTPH-UM -104 9-02 , Issue 2 Front Panel H2TU-C-319 List 4E January 9, 2002 3 F RON T P ANEL Figure 1 shows the H2TU-C-319 List 4E front panel . Ta ble 1 on page 4 describ es the fr ont-panel co mponents. For pinout diagram s of the H2TU-C-319 List 4E card-edge con nector and craft p ort, refer to “ Appendix A - Specifications ” on pag e 65 . Fi[...]

Front Panel LTPH-UM-104 9-02, Issue 2 4 January 9, 2002 H2TU-C- 319 List 4E Table 1. Front-Panel Description Fron t-Panel F eature Func tion Front- panel di splay Displays four-character st atus, prov isioni ng, and alarm sys tem message s. The front -panel displ ay illumin ates when po wer is initia lly applie d. To cons erve power the di splay on[...]

LTPH-UM -104 9-02 , Issue 2 Front Panel H2TU-C-319 List 4E January 9, 2002 5 Table 2 lists the fro nt-panel display mes sages. The four-char acter display reports the code of an alarm, loop back, or diagnostic message and, in some cases, is followed by a second four-character messag e that modifies the first message with a value or curren t conf ig[...]

Front Panel LTPH-UM-104 9-02, Issue 2 6 January 9, 2002 H2TU-C- 319 List 4E LOOPB ACK MES SAGES CLOC Customer Local Loopback Sign al fr om cu stom er i s lo oped b ack to t he c usto mer at th e H2TU-R. CREM Customer Remot e Loopba ck Signa l from cust omer is loo ped back to the custome r at H2TU -C. NLOC Network Lo cal Loop back DSX-1 signal is l[...]

LTPH-UM -104 9-02 , Issue 2 Front Panel H2TU-C-319 List 4E January 9, 2002 7 SYSTEM INFORMA TION MESSAG ES (a) CODE xxxx Line Code: A MI or B8 ZS The DS1 line code settin g: Alternate Ma rk Inversion (AMI) or Bip olar with 8- Zero Su bstitut ion (B 8ZS). FRM xx xx Frame: SF, ESF, or UNFR Defines the type of frame pattern bein g recei ved from the D[...]

Installation LTPH-UM-104 9-02, Issue 2 8 January 9, 2002 H2TU-C- 319 List 4E I NSTA LLA TION Figure 2. Installing the H2TU- C-3 19 Lis t 4E into a Shelf 1 Align the H2TU-C with the enclosure slot guides, then p us h the unit in until it touches the backplane card-edge con nector. 2 Place your thumbs on the H2TU-C front panel and push the H2TU -C fi[...]

LTPH-UM-104 9-02, Issue 2 Installation H2TU-C-319 List 4E January 9, 2002 9 V ERIFICATION Once the H2TU-C is installed, verify that it is o perating properly. To do this, monitor the follow ing: • Status LED • Status mes sages repor ted by the f ront-panel display ( Ta bl e 2 on p age 5 lists the status messages). Verification without an H2TU-R[...]

Provisionin g LTPH-UM-1049-02 , Issue 2 10 January 9 , 2002 H2TU-C- 319 List 4E P ROVISIONING There are two provisioning methods: • Use the MODE an d LBK pushbut tons on the front panel of t he H2TU-C to: – Set system optio ns – Reset the H2TU-C to its factory default settings for sy stem optio ns – Display system o ption settings (scro ll [...]

LTPH-UM-104 9-02, Issue 2 Pro visioning H2TU-C-319 List 4E January 9 , 2002 11 Resetting to Factory Default Values All user options for the H2TU-C, d e scr ib ed in Ta bl e 5 on pag e 18 , can be set to the factory de fault v a lues using the MODE and LBK pushbuttons. To set th e user opt ions to th eir default values: 1 Press the LBK pushbutto n f[...]

Provisionin g LTPH-UM-1049-02 , Issue 2 12 January 9 , 2002 H2TU-C- 319 List 4E U SING A M AINTENANCE T ERMINAL Connecting to a Maintenance Ter minal The craft port on th e front panel allows you to connect the H2TU-C to a maintenance terminal (ASCII termin al or PC running a terminal emulation progr am). Once connected to a maintenance terminal, y[...]

LTPH-UM-104 9-02, Issue 2 Pro visioning H2TU-C-319 List 4E January 9 , 2002 13 Figure 3. Logo n Screen Most VT10 0 emu latio n programs su pport a p r int s creen o ption. For Wind ow s-ba sed prog rams , such as Pr ocomm or H yperTer minal, see the Help menu for instructi ons. Table 4. Log on Scr een Menus Press this ke y: To acc ess th is m enu: [...]

Provisionin g LTPH-UM-1049-02 , Issue 2 14 January 9 , 2002 H2TU-C- 319 List 4E P ROVISIONING T ASKS After the H2TU-C is successfu lly installed, perform thes e basic provisioning tasks: • Set date and time (see “ Setting D ate and Time ” on this page). • Set circuit ID numbers (s ee “ Setting Ci rcuit ID Numbers ” on page 15 ). • Mak[...]

LTPH-UM-104 9-02, Issue 2 Pro visioning H2TU-C-319 List 4E January 9 , 2002 15 Sett ing C irc uit ID Nu mber s The Inventory m enu provides produ ct information on all units i n the system and allows setting o f the circuit and unit identification nu mbers. Figure 5. Inventory S creen 1 Press to select the Inve ntory menu. 2 Type the Circu it ID nu[...]

Provisionin g LTPH-UM-1049-02 , Issue 2 16 January 9 , 2002 H2TU-C- 319 List 4E Configuring the System The Config menu (see Figur e 6 below) allows yo u to make th e follo win g changes: • Standa rd options (s ee “ Maki ng Ch anges to Stan dard a nd ADC Opt i ons ” on page 16 ). • ADC options (see “ Making Changes t o Standard an d ADC Op[...]

LTPH-UM-104 9-02, Issue 2 Pro visioning H2TU-C-319 List 4E January 9 , 2002 17 Figure 7. Config Men u - Stan dard Options (defa ults shown) Figur e 8. Co nfig Men u - AD C Opti ons (def ault s show n) M onitor P erf ormanc e E vent L og C o nfig I nv entory Rep o rt R l ogon H elp +-------- ------ ---------+ | Standar d Opti ons -> | +--------- [...]

Provisionin g LTPH-UM-1049-02 , Issue 2 18 January 9 , 2002 H2TU-C- 319 List 4E Table 5 describes the Standard Confi g screen options and list s their front-panel di splay codes. Table 6 on page 19 describes the ADC Config screen options and lists their front- panel display codes. Selections in bold typef ace are the factory default settin gs. Tabl[...]

LTPH-UM-104 9-02, Issue 2 Pro visioning H2TU-C-319 List 4E January 9 , 2002 19 Power Back Off Customer PBOC DEF Conf igures the power output levels of the H2TU -R netwo rk unit towards the network to compl y with the Default te mplate as defin ed in Section 6 .1.4.2 of ANSIT1 .E1.4. ENH Config ures the po wer outp ut leve ls of th e H2TU-R network [...]

Provisionin g LTPH-UM-1049-02 , Issue 2 20 January 9 , 2002 H2TU-C- 319 List 4E Minor Al arm ALM EN A Enabl es the genera tion of the out put alarm on pin H when a system alarm cond ition occ urs. DIS Disable s the generat ion of the ou tput alarm on pin H when a syst em alarm cond ition occ urs. Network AIS Sign al NAIS CI If ALM P is set to AIS ,[...]

LTPH-UM-104 9-02, Issue 2 Pro visioning H2TU-C-319 List 4E January 9 , 2002 21 Active D S1 Port See “ Dual DSX-1 Port Opti on ” on page 31 . ADS1 MU X The MU X mode selec ts the DSX -1 (MUX) port as the active source for the DS1 Signa l to tr ansmit to the HSD L Line Por t #1. An AIS sign al is sent to the aux iliary Port #2. Equalizer set ting[...]

Provisionin g LTPH-UM-1049-02 , Issue 2 22 January 9 , 2002 H2TU-C- 319 List 4E HDSL2 BER Threshold (HBER) Option. The HBER option permits the monitoring of loop integrity and reporting of alarms when excessive errors are detected. The PM primitive used for this purpose is the CR C checksum perf ormed on th e HDSL2 frame for bo th directions o f tr[...]

LTPH-UM-104 9-02, Issue 2 Pro visioning H2TU-C-319 List 4E January 9 , 2002 23 SF RAI to SF RAI-CI Toward Networ k (RACI) Option. In general, the Remote Alarm Indicatio n - Customer Installation (R AI-CI) signal is a RAI sig nal which contains a sign ature indicating that an LOF or AIS failure has occurred within the customer ’ s ne t wor k . RAI[...]

Provisionin g LTPH-UM-1049-02 , Issue 2 24 January 9 , 2002 H2TU-C- 319 List 4E used to embed SPRM or NPRM into the d atalin k toward the network. During conversion, frame bit errors are regenerated to ensure transparency . The HDSL2 syst em attempts to find ESF or SF framing or determines t hat no framing exists . The DS1 framing is then synchroni[...]

LTPH-UM-104 9-02, Issue 2 Pro visioning H2TU-C-319 List 4E January 9 , 2002 25 Table 9 . Extended Super Frame Form at ESF Numb er Fram e Bits Framing P attern Sequence (FPS) - 2 kps Fram e Bit f or Dat alin k (FDL) - 4 kbps Cyclic al Re dundan cy Check (CRC) Bits - 2 kbps 1 m 2 C1 3 m 4 0 5 m 6 C2 7 m 8 0 9 m 10 C3 11 m 12 1 13 m 14 C4 15 m 16 0 17[...]

Provisionin g LTPH-UM-1049-02 , Issue 2 26 January 9 , 2002 H2TU-C- 319 List 4E Fractional T1 (FT1 ) Opt ion. Fractional T1 circuits can be used in feeder networks to provide frame relay service. If such circuits ar e maintained by a DDS test group, then th ese circuits must respond to DDS/DS0 latching loopback com mands, the only too l test groups[...]

LTPH-UM-104 9-02, Issue 2 Pro visioning H2TU-C-319 List 4E January 9 , 2002 27 a successful loopdown is reported; otherwise, a failed loopdown is reported. The loop-do wn can also be initiated by depressin g the H2TU-R loopb ack control button or by any o f the standard 3-in-5 loop-d own commands. The implemented detection/releas e loopback algorit[...]

Provisionin g LTPH-UM-1049-02 , Issue 2 28 January 9 , 2002 H2TU-C- 319 List 4E Test Access The H2TU-C ’ s PC board ’ s card-edge connector, s hown in Figure 33 on page 68 , has three sep arate segments labeled S1 (segment 1), S2 (segment 2), and S3 (segment 3). S3 contains the standard 31 92 pin connection s. The two extra segments, S1 and S2,[...]

LTPH-UM-104 9-02, Issue 2 Pro visioning H2TU-C-319 List 4E January 9 , 2002 29 Metallic Te st Access. Figure 9 on page 28 shows the block diagram of the metallic test access features which are under control of the two relays, K1 an d K2. The S2 metallic test access po rts (IN or OUT) are bused to term inal block TB6 lo cated on the HMS-358 b ackpla[...]

Provisionin g LTPH-UM-1049-02 , Issue 2 30 January 9 , 2002 H2TU-C- 319 List 4E The MTAF IN port of TB6 can connect to an external test facility circuit consisting of an HDSL2 wire line simulator or test pair and a golden H2TU-R remote HDSL2 unit. This connection allows the H2TU-C Unit Under Test (UUT) to be tes ted from its DSX-1 inter face on the[...]

LTPH-UM-104 9-02, Issue 2 Pro visioning H2TU-C-319 List 4E January 9 , 2002 31 The separate control o f K1 and K2 per mits another test s cenario. Two external HDSL2 spans ca n be looped together at TB6 if the two H2TU-C line units that connect to the two spans both enable their MTAF states and close K1 in each unit. This will loop the two pairs to[...]

Provisionin g LTPH-UM-1049-02 , Issue 2 32 January 9 , 2002 H2TU-C- 319 List 4E Resetting to Fact ory Defaul ts To reset the H2TU-C to its o rigin al f actory defaults: 1 Press to select the Config menu. 2 Use the and arrow keys to select Set Factory Defaults , then press . 3 Press if you want to reset the H2TU-C, or pr ess to cancel this action. F[...]

LTPH-UM-104 9-02, Issue 2 Pro visioning H2TU-C-319 List 4E January 9 , 2002 33 Cleari ng the Hi story, Alarm, and Ev ent Log S cree ns Select Master Clear to clear the History, Alarm an d Event Log sc reens after the system has been installed and is functioning properly. This remo ves miscellaneous data acquired during the star tup ses sion and ens[...]

Monitoring Sy stem Ac t iv ity an d Pe rformance LTPH-UM- 104 9-02, Issue 2 34 January 9 , 2002 H2TU-C- 319 List 4E M ONIT ORIN G S YS TEM A CTIVITY AND P ERFORMAN CE The H2TU-C-31 9 List 4E provides the fo llowing maintenance scr eens for moni toring system activity and assessi ng performanc e: • The Monitor screens provide a graphical represen [...]

LTPH-UM-104 9-02, Issue 2 Monitorin g Syst em Activity and P erform an ce H2TU-C-319 List 4E January 9 , 2002 35 U SING THE M ONITOR S CREEN TO V IEW S YSTEM A CTIV ITY 1 Press to view the system d iagram. Figur e 15 shows an armed c ircuit with an active loopback and alarms. Terms used on the system d iagram are defined in the o nscreen Help menu [...]

Monitoring Sy stem Ac t iv ity an d Pe rformance LTPH-UM- 104 9-02, Issue 2 36 January 9 , 2002 H2TU-C- 319 List 4E Table 14. M on ito r Scr een Des c ri pt i on s Field Description Activ e Loopback An active l oopback is in dicated on t he lower third of the Monitor screen . Availabl e loopbacks are indic ated by gray text. See Table 2 2 on page 5[...]

LTPH-UM-104 9-02, Issue 2 Monitorin g Syst em Activity and P erform an ce H2TU-C-319 List 4E January 9 , 2002 37 U SING THE P ERFORMANCE S CREENS TO V IEW P ERFORMANCE D ATA The Performance screens display: • CRC statistics for the HDSL2 o r DS1 interface in 31- day, 48-hour, 2 5-hour, and curr ent history rep orts. • Alarm statistics for the D[...]

Monitoring Sy stem Ac t iv ity an d Pe rformance LTPH-UM- 104 9-02, Issue 2 38 January 9 , 2002 H2TU-C- 319 List 4E Performance H istory at the DS1 Int erface The Performance History for th e DS1 interface provid es 31-day, 48- hour, 25-hour , and current statistics screens for the H2TU-C and the H2TU-R (as v iewed from the H2 TU-C). Figur e 16 bel[...]

LTPH-UM-104 9-02, Issue 2 Monitorin g Syst em Activity and P erform an ce H2TU-C-319 List 4E January 9 , 2002 39 Figur e 18. H 2TU-C DS1 48 -Hour Per form ance Hist ory Table 15. Er ror Acronyms Used on the DS1 Performance History Screens Error Acronym De scripti on Error Acronym Des cription CV-L Co de Viol ation - Line Total BP V coun t. SES-P Se[...]

Monitoring Sy stem Ac t iv ity an d Pe rformance LTPH-UM- 104 9-02, Issue 2 40 January 9 , 2002 H2TU-C- 319 List 4E Performanc e History a t the HDSL2 Interfac e The HDSL2 interface has 31-day, 48- hou r, 25 -ho ur, and curren t statistic screens for the H2TU-C. Figure 19 and Figur e 20 below are examples of 3 1-day and 48-ho ur performan ce histor[...]

LTPH-UM-104 9-02, Issue 2 Monitorin g Syst em Activity and P erform an ce H2TU-C-319 List 4E January 9 , 2002 41 Figure 21. H2TU-C HDSL2 25-Hour Performance Histo ry Table 16 . Error Acronyms Used on the HDSL2 Performance History S creens Error Acronym Description ES Errored Seconds Second s with HDSL2 CRC ≥ 1 or LOSW ≥ 1 SES Severely E rrored [...]

Monitoring Sy stem Ac t iv ity an d Pe rformance LTPH-UM- 104 9-02, Issue 2 42 January 9 , 2002 H2TU-C- 319 List 4E Current Statistics Screens for the DS1 Interface Examples of curr ent statistics screens are sh own below. Figure 22 and Figu re 23 show statistics for the DS1 interface at the remo te unit and line unit, respectively. Thes e screens [...]

LTPH-UM-104 9-02, Issue 2 Monitorin g Syst em Activity and P erform an ce H2TU-C-319 List 4E January 9 , 2002 43 Current Statistics for HDSL2 Interfac e Figur e 24 shows statistics for the HDSL2 interface at the H2TU-C . This screen repo rts 1-day, 1-hou r, and 15-minute statisti cs. Refer to Ta b le 16 on page 41 for de scriptions of the kin ds of[...]

Monitoring Sy stem Ac t iv ity an d Pe rformance LTPH-UM- 104 9-02, Issue 2 44 January 9 , 2002 H2TU-C- 319 List 4E U SING THE P ERFORMANCE S CREENS TO V IEW A LARM D ATA To access the alarm h istory screens: 1 Press to select the Performance m enu. 2 Press the to select an in terface ( H2T U-C DS1, H2TU-R DS1, H2TU-C HDSL2 , or H2TU-R HDSL 2 ), th[...]

LTPH-UM-104 9-02, Issue 2 Monitorin g Syst em Activity and P erform an ce H2TU-C-319 List 4E January 9 , 2002 45 Figure 26. H2TU-R DS1 Alarm History Screen Table 17. DS1 Alarm Descrip tio ns Screen Alar m Front-Pane l Alar m Descriptio n H2TU-C DSI Alarms (see Figure 25 on page 44 ) SPTE Split Eq uipment A test mode initia ted by the H MU whic h sp[...]

Monitoring Sy stem Ac t iv ity an d Pe rformance LTPH-UM- 104 9-02, Issue 2 46 January 9 , 2002 H2TU-C- 319 List 4E Alarm Hi story at the HDSL2 In terf ac e Figur e 27 shows the H2TU- C HDSL2 alarm history and Table 18 describes the alarms. Figure 27. H2TU -C HDSL2 Alarm Histo ry Screen DBER xxx -DBER Bit E rro r Ra te — The DS1 BER has excee ded[...]

LTPH-UM-104 9-02, Issue 2 Monitorin g Syst em Activity and P erform an ce H2TU-C-319 List 4E January 9 , 2002 47 Table 18. H DSL2 Alarm Descriptions Screen Alarm Front -Pan el Alar m Description MTAE MTA E Metall ic Test Acce ss Equipme nt — The H 2TU-C is i n its MTA /LOSW te st stat e. MTAF MTA F Metall ic Test Acce ss Facil ity — The H2T U-C[...]

Monitoring Sy stem Ac t iv ity an d Pe rformance LTPH-UM- 104 9-02, Issue 2 48 January 9 , 2002 H2TU-C- 319 List 4E U SING THE S YSTEM E VENT L OG TO T RACK E VENTS To view a runn ing log of system events, press to select the Event Log. The Ev ent Log displays the date and time of the 100 mo s t recent even ts (most recent displayed first) and prov[...]

LTPH-UM-104 9-02, Issue 2 Monitorin g Syst em Activity and P erform an ce H2TU-C-319 List 4E January 9 , 2002 49 Table 19. Event Log Entry Messages List Event Lo g Message s Any DS1 Alarm Hist ory reset Any DS1 PM register reset Any HDSL2 Alarm His tory reset Any HDSL2 PM register reset Any Loop D own (any se gment) Any Loop U p (any seg ment) Any [...]

Monitoring Sy stem Ac t iv ity an d Pe rformance LTPH-UM- 104 9-02, Issue 2 50 January 9 , 2002 H2TU-C- 319 List 4E U SING THE R EPORT M ENU The Report m enu ( Figur e 29 ) provides sc reens containing s tatus and perf ormance monitorin g data for line and remote un its which can be downloaded to a file for analy sis or future reference. Table 20 o[...]

LTPH-UM-104 9-02, Issue 2 Monitorin g Syst em Activity and P erform an ce H2TU-C-319 List 4E January 9 , 2002 51 Table 20. Report Types Type Con tains the followin g informa tion: Full Repor t • Circuit an d unit iden tificati ons • Product informati on • System co nfigurat ion • Current performance statistics • Alar m histor y • Perfo [...]

Testing LTPH-UM-104 9-02 , Issue 2 52 January 9 , 2002 H2TU-C- 319 List 4E T ESTING This section prov ides information abou t front-panel sys tem alarms, LOS and AIS response, OCT55 test procedure, and loopback test ing. S YSTEM A LARMS Table 21 summarizes all possible system alarms in o rder of priority as they appear on th e front panel. When mul[...]

LTPH-UM-104 9-02, Issue 2 Testing H2TU-C-319 List 4E January 9 , 2002 53 Alarm Option for the Digital Loop Carrier Feed To improve HiGain HDSL2 compatibility with the switch-to-protect features used in the Digital Loop Carrier (DLC) feeder applications, the H2TU-C has an Alarm Pattern (ALMP) option that allows you to select either an AIS or L OS DS[...]

Testing LTPH-UM-104 9-02 , Issue 2 54 January 9 , 2002 H2TU-C- 319 List 4E Remote LOS and AIS Response Figur e 30 sho ws the differ ing wa ys th e H2TU- R ca n resp on d to t h e net work , dep endin g on th e conf igur atio n of the TLOS, NLBP, FT1, ALMP, and N AIS configuration options des cribed in Table 5 on page 18 and Table 6 on page 19 . See[...]

LTPH-UM-104 9-02, Issue 2 Testing H2TU-C-319 List 4E January 9 , 2002 55 L OOPBACK O PERATION HiGain HDSL2 has a family of loopback options fo r analy zing cir cuit funct ionality. The loo pback signal is transmitted and returned to the sending device for com paris on. This allows you to verify th e integrity of the HDSL2 channels to the H2TU-C, th[...]

Testing LTPH-UM-104 9-02 , Issue 2 56 January 9 , 2002 H2TU-C- 319 List 4E Generic Loopback Commands The HiGain HDSL2 Generic Loop back (GNLB) comman ds allow you to use in-b and codes to lo op up either NLOC (4-in-7) or NREM (3-i n-7) towards the network . In additi on, these in-ban d codes loop up CREM (6-in-7) or CLOC (5-in-7) towards the custom[...]

LTPH-UM-104 9-02, Issue 2 Testing H2TU-C-319 List 4E January 9 , 2002 57 SmartJack Loopback Commands The HiGain HDSL2 SmartJack (SMJK) Loopback (LPBK) com mands allow you to use in-band, ou t-of-band, and universal codes to initiate and termin ate lo opback testing of the HiGain HDSL2 circuit. (See “ SmartJack Test Procedur e ” on page 64 for a[...]

Testing LTPH-UM-104 9-02 , Issue 2 58 January 9 , 2002 H2TU-C- 319 List 4E 2 Press LBK to activate NLOC. The dis play changes to MAN LPBK NLOC . 3 Press MODE to advance to the next available loopb ack: • NRE? = NREM • CRE? = CREM • CLO? = C LOC 4 Press LBK to activate the s elected loopback. The prev ious loopback is terminated. Once a loopba[...]

LTPH-UM-104 9-02, Issue 2 Testing H2TU-C-319 List 4E January 9 , 2002 59 You can also manually terminate the MTA state and ex it the MAN LPBK mode by s imultaneously pressing the MODE and LBK pushb uttons for 3 or more seconds. If no loopback or MTA is active, the MAN LPBK mode automatically terminates after 30 seconds. IN - BAND L OOPBACK S ESSION[...]

Testing LTPH-UM-104 9-02 , Issue 2 60 January 9 , 2002 H2TU-C- 319 List 4E Figure 32. L oopba ck Mode s All ones All ones HDSL2 SP AN C742 ‡ All ones HDSL2 SP AN D3D3 ‡ HLU HLU HLU CREM HR U-412 5 IN 7 CLOC HR U-412 HDSL2 SP AN HLU HLU HLU HR U-412 HR U-412 5 IN 7 CLOC HR U-412 HR U-412 5 IN 7 CLOC HR U-412 HR U-412 5 IN 7 CLOC HR U-412 HR U-41[...]

LTPH-UM-104 9-02, Issue 2 Testing H2TU-C-319 List 4E January 9 , 2002 61 A2LB Test Procedures Using the codes list ed in Table 23 , a network test er can activate NLOC or NREM loop backs (or SMJK, if enabled). A tester at the customer pre mises can activate CLOC or CREM loopbacks. All loopbacks sho wn in Table 23 can also be initiated from the H 2T[...]

Testing LTPH-UM-104 9-02 , Issue 2 62 January 9 , 2002 H2TU-C- 319 List 4E To perform the A2LB tes t procedures: 1 Send the in-band Arming and NI LPBK code 1 1000 to the H2TU-C fo r at least 5 seconds. 2 Monitor the output of the H2TU-C for the return of the pattern. Retu r n of the patter n ind icates o ne of the following: • The H2TU-R has loo [...]

LTPH-UM-104 9-02, Issue 2 Testing H2TU-C-319 List 4E January 9 , 2002 63 5 Once the test is complete, do one of the following: • If the system is to loopd own b ut remain Armed, send the IR (Intelligent Rep eater) LPDN cod e for universal loo pdown . • If all the equipment is to be looped down, disarmed and returned to no rmal o peration , send[...]

Testing LTPH-UM-104 9-02 , Issue 2 64 January 9 , 2002 H2TU-C- 319 List 4E A3LB and A4LB Test Procedures The H2TU-C can be looped back by s ending the Addressable Off ice Repeater (AOR) LPBK activation code 1111-11 11-0001-1110 (FF1E) for at least 5 seconds. This causes the H2 TU-C to enter the NLOC st ate. The Loopback Time-out setting (see “ S [...]

LTPH-UM -104 9-02, Issue 2 Appendi x A - Specificat io ns H2TU-C-319 List 4E January 9 , 2002 65 A PPENDIX A - S PECI FICAT IONS Power HDSL2 Spa n Voltage 0 or -180 ±5 Vdc CO S upply -48 Vdc no minal (-42.5 Vdc to -5 6.5 V dc) See “ Power Consu mption ” and “ M aximum Po wer Dissipa tion ” and “ Max imum Current Drain ” on page 66 . El[...]

Appendi x A - Spe cifications LTPH-UM- 104 9-02, Issue 2 66 January 9 , 2002 H2TU-C- 319 List 4E P OWER C ONSUMPTION The three mos t important po wer parameters of an H2TU-C are its maxi mum power cons umption, maximu m power d issipation, and maximu m current drai n. Table 26 des cribes line-p owered circui ts on 9 kf t, 26 AWG l oops with out a r[...]

LTPH-UM -104 9-02, Issue 2 Appendi x A - Specificat io ns H2TU-C-319 List 4E January 9 , 2002 67 L OOP A TTENUATION , I NSERTION L OSS , AND R EACH Each loop has no more than 35 d B of loss at 196 kHz, with driv ing and terminating impedances o f 135 Ω , as shown in Table 27 below. This is equivalent to no more than 28 dB loop attenuation. Tab l [...]

Appendi x A - Spe cifications LTPH-UM- 104 9-02, Issue 2 68 January 9 , 2002 H2TU-C- 319 List 4E H2TU-C-319 L IST 4E C ARD -E DGE C ONNECTOR Figur e 33 shows the pin assignments of the card- edge connector on the H2TU-C-319 List 4 E card. The f unction of its segment s (S1 , S2, and S3 ) are des crib ed begi nning with “ Test Access ” on pag e [...]

LTPH-UM -104 9-02, Issue 2 Appendi x A - Specificat io ns H2TU-C-319 List 4E January 9 , 2002 69 Figur e 34 shows the generic labeling of the connector as it appears on the backpl ane with HMS-358 shelf. Note that the H2TU-C has no connections to Loop B of Group 1. The HMS-358 techn ical practice refers to Gro up 1 and Group 2 as Port 1 and Port 2,[...]

Appendi x A - Spe cifications LTPH-UM- 104 9-02, Issue 2 70 January 9 , 2002 H2TU-C- 319 List 4E Syste m Alarm Output Pin Pin H on the card- edge connector, sho wn in Figure 33 , is th e H2TU-C System Alarm output pin . The followin g notes app l y to p i n H : • Pin H replaces the Lo cal Loss of Signal (LLOS) on no rmal high-density (31 92) repe[...]

LTPH-UM -104 9-02, Issue 2 Appendi x A - Specificat io ns H2TU-C-319 List 4E January 9 , 2002 71 C RAFT P ORT Figur e 35 shows the pinout for th e craft port connector an d its connection to a DB-9 or DB-25 connector on a maintenance terminal. Figur e 35. RS -232 Craft Port Pinouts H2TU-C-319 DB-9 Connector (DCE) RD (Receive Data) TD (T ransmit Dat[...]

Appendi x B - Fun ctional Opera tion LTPH-UM- 1049-02, Issue 2 72 January 9 , 2002 H2TU-C- 319 List 4E A PPENDIX B - F UNCTIONA L O PERAT ION ADC HDSL2 technolo gy provides fu ll-duplex services at standard DS1 rates ov er copper wires b etween an H2TU-C and an H2TU-R, which comprise one HiGain HDSL2 system. HiGain HDSL2 systems u se ADC Overlapped[...]

LTPH-UM -104 9-02, Issue 2 Appen dix B - F unc tional Operat ion H2TU-C-319 List 4E January 9 , 2002 73 T IMING The low loop wander ( 0.3 UI max) of an H2TU-C, when u sed with compatible regenerator s and remote units, allows the circuit to be used in all critical timing applications, including those that are used to transport Stratum 1 timing. G R[...]

Appendi x C - Compatibilit y LTPH-UM- 104 9-02, Issue 2 74 January 9 , 2002 H2TU-C- 319 List 4E A PPENDIX C - C OMPATIBILITY The HiGain HDSL2 system us es HDSL2 transmission techno logy as recommended by ANSI committee in compliance w ith the A ugust 199 9 T1-E1.4/99- 006R5 HDSL2 standards. The H2TU-C are de signed to mount in the following shelves[...]

LTPH-UM -104 9-02, Issue 2 Appe ndix D - Produc t Support H2TU-C-319 List 4E January 9 , 2002 75 A PPENDIX D - P RODU CT S UP PORT ADC Customer Service Gro up provides expe rt pre-sales and post-s ales support and training for all its products. T ECHNICAL S UPPORT Technical support is available 24 hours a day, 7 days a week by con tacting the ADC T[...]

Appendi x E - Abb reviati ons LTPH-UM- 1049-02, Issue 2 76 January 9 , 2002 H2TU-C- 319 List 4E A PPENDIX E - A BBRE VIATIO NS A ACO: Al arm Cut off ACON: Aut o Conv ersion of DS 1 frame ACQ: Acquisition ADSI : Acti ve D SX-1 AIS: Alarm In dication Signa l ALRM : Alar m C ondit ion AMI : Alternate Mark Inversion AUX: Au xiliary AWG : American Wire [...]

LTPH-UM -104 9-02, Issue 2 Appendix E - Abbre viat io ns H2TU-C-319 List 4E January 9 , 2002 77 MTAE: Metal lic Test Access Equipmen t MTAF: Metal lic T est Access Facili ties MUX: Mu ltiplexer N NLOC: Ne twork Local Loopback NMA: Network Ma nagem ent and Ad minist rat ion NPRM: Network PR M NREM: Network Rem ote Lo opback O OPTI S: Overlapp ed PAM[...]

Appendi x E - Abb reviati ons LTPH-UM- 1049-02, Issue 2 78 January 9 , 2002 H2TU-C- 319 List 4E[...]

C ERTI FICA TION AND W ARRANTY FCC C LASS A C O MPLIANCE This equi pment has be en tested and fou nd to comply with the limits for a Class A digita l device, pursu ant to Part 15 of the FCC Rule s. Th ese limits are designed to provi de reasonabl e protec tion against harmful i nte rfe rence whe n the equi pm ent is opera ted in a co mmerc ia l env[...]

ADC DSL Systems, Inc. 14402 Frankl in Avenue Tustin, CA 92780-7013 Tel: 7 14.832.9922 Fax: 7 14.832.9924 Technica l Assist ance Tel: 8 00.638.0031 Tel: 7 14.730.3222 Fax: 7 14.730.2400 DNV C ertific ation, I nc. REGISTERED FIRM IS O 9001/TL 9000 D OCUMENT : LTPH- UM-1049-02 , I SSUE 2 ´,-Q¶6o¨ 1213496[...]