ADTRAN AHDSL2 User Manual

Alcatel Litespan

Section 61221002L2-5B

Issue 2, August 2003

CLEI Code: SLL5R3DG_ _

ADTRAN® AHDSL2

Asynchronous H2TU-C Line Card for

Channel Bank Assemblies Using Narrowband Pairs

Installation and Maintenance Practice

CONTENTS

1. General ......................................................................... 1

2. Applications ................................................................. 3

3. Installation .................................................................... 3

4. Deployment Guidelines ............................................... 8

5. Maintenance ................................................................. 9

6. Troubleshooting Procedures ...................................... 10

7. Product Specifications ............................................... 10

8. Warranty and Customer Service ................................10

Appendix A. HDSL2 Loopbacks .................................. A-1

Appendix B. TL1 H2TU-C Tutorial ..............................B-1

Appendix C. Metallic Test Access Unit (MTAU)

Testing Capabilities ..................................C-1

FIGURES

Figure 1. ADTRAN H2TU-C for Litespan ....................1

Figure 2. H2TU-C Span Powering Diagram .................. 3

Figure 3. Deployment from a Litespan

Channel Bank ..................................................3

Figure 4. Deployment Guidelines ..................................8

Figure C-1. SPLIT Mode ................................................C-1

Figure C-2. MON Mode ................................................. C-2

TABLES

Table 1. LED Indicators ................................................2

Table 2. Compliance Codes .......................................... 4

Table 3. Administration Commands .............................5

Table 4. Cross-Connect Commands..............................5

Table 5. Maintenance Commands ................................. 5

Table 6. HDSL Provisioning Commands ..................... 6

Table 7. T1 Provisioning Commands ........................... 6

Table 8. Testing Commands .........................................7

Table 9. Worksheet PW-1 Factors ................................8

Table 10. Power Parameters ............................................ 8

Table 11. HDSL2 Loss Values........................................9

Table 12. Loop Insertion Loss Data ................................ 9

Table 13. Troubleshooting Guide ................................. 10

Table 14. ADTRAN H2TU-C Specifications ............... 11

Table A-1. In-Band Addressable Loopback

Codes .................................................. A-2, A-3

1. GENERAL

The ADTRAN asynchronous Litespan HDSL2 Transceiver Unit for the Central Office (H2TU-C) P/N 1221002L2, is a DS1 interface unit that provides full T1 service over 2-wire interface facilities. The Litespan H2TU-C combines ADTRAN HDSL2 technology and Litespan technology to provide an HDSL2 interface to a Litespan system. ADTRAN’s

H TUC

1221002L2 NB

DSL

STAT

RLOS

HLOS

HCRC

ARM

LBK

B8ZS

AHDSL2

Figure 1. ADTRAN H2TU-C for Litespan

Litespan H2TU-C is certified by Alcatel

to safely operate in Litespan 2000, 2012 and Starspan systems. The unit is licensed under the Asynchronous High-bit-rate Digital Subscriber Line 2-wire T1 Interface Unit H2TU-C channel unit type. Figure 1 is an illustration of the ADTRAN H2TU-C.

Revision History

This is the second release of this document. Additional footnotes have been added to Tables 6, 7, and A-1.

Features

• Lightning and power cross-protection, static discharge immunity, and local power bus fusing for line card safety and protection

• 1.552 kbps HDSL2 transmission over a single pair

• Front panel status LEDs

• Performance monitoring and alarm reporting

• Low power consumption

• Span powering for the H2TU-R

• Corrosion-preventive sealing current over a single twisted copper pair

• Troubleshooting functionality

61221002L2-5B 1

Trademarks: Any brand names and product names included in this document are

trademarks, registered trademarks, or trade names of their respective holders.

Table 1 lists and defines the H2TU-C Front Panel LED indicators.

Each ADTRAN Litespan H2TU-C line card provides a 1.552 kbps data transport over one unconditioned CSA copper pair. These CSA loops can range up to 12 kft of 24-AWG twisted pair wire.

The Litespan H2TU-C can be used in Litespan 2000, Litespan 2012, and Litespan ONU channel bank assembly (CBA) systems containing Litespan system software versions of 11.0.0 or higher. Each H2TU-C works with the following multiple list versions of the HDSL2 unit remote end (H2TU-R):

Part Number Description

1222024L6 T200 H2TU-R, Local Power 1223024L9 T200 H2TU-R, Local Power 1221026L6 T200 H2TU-R MON 1222026L6 T200 H2TU-R MON 1222026L9 T200 H2TU-R Q 1223026L9 T200 H2TU-R Q 122x024L7 T200 H2TU-R, Local Power 122x026L1 T200 H2TU-R 122x026L5 T200 H2TU-R B 122x026L7 T200 H2TU-R S (where x = 1, 2 or 3)

The H2TU-C can be deployed in circuits consisting of one H2TU-C and one H2TU-R. Lightning and power cross-protection is provided at each twisted pair interface of the ADTRAN H2TU-C line card. Local power bus fusing is also used to protect the Litespan channel bank backplane, Litespan bank power supplies, and neighboring Litespan line cards in the event of catastrophic line card failure.

The Litespan H2TU-C uses a DC-to-DC converter to derive span powering voltage from the Litespan –48 VDC switched battery supply.

Simplex current of 30 mA of current may be coupled onto the HDSL2 loop span to power the H2TU-R (see

Figure 2).

NOTE

Depending on the type of H2TU-R used in the circuit, different provisioning options will be available.

DELnoitacidnInoitpircseD

ffO

TATS

SOLH

SOLR

LSD

CRCH

KBL/MRA

SZ8B

neerG neerGgnihsalF deR

ffO deR deRgnihsalF

ffO deR

neerG

wolleY

deR gnihsalF

ffO

wolleY

deR

ffO neerG

wolleY

neerG

ffO

Table 1. LED Indicators

C-UT2HotrewopfossolsetacidnI

R-UT2HehthtiwcnysnisiC-UT2H;noitarepolamroN

R-UT2Hhtiwnoitazinorhcnys2LSDHgniriuqcA

erawmrifdaol/tratsotelbanu;noitacidnieruliaF

deveihcalangis2LSDH

noitazinorhcnysfossol2LSDH

pool2LSDHnodetcetedtluafytiunitnocCD

R-UT2HtatneserpsiEPCehtmorflangis1SD

hctamtonseodgnimarFroR-UT2HtatnesbasiEPCehtmorflangis1SD

)retaergroBd6(mumitposinigramRNS2LSDH

)Bd5otBd1(lanigramsinigramRNS2LSDH

)Bd0(roopsinigramRNS2LSDH

>sinoitaunettaeslup2LSDHBd03

setunim03tsalehtnihtiwsrorreCRC2LSDHoN

setunim03tsalnisrorreCRC2LSDHeromroruoF

detcetedgnieberasrorreCRC2LSDH

kcabpoolnirodemratonsitinuehT

kcabpoolnisitinuehT

kcabpoolnitontubdemrasitinuehT

SZ8BsiedocenilehT

IMAsiedocenilehT

2 61221002L2-5B

3. INSTALLATION

C A U T I O N

SPAN CURRENT

TIP (+)

HDSL2

SPAN POWER

−190V

RING (−)

Figure 2. H2TU-C Span Powering Diagram

2. APPLICATIONS

The ADTRAN HDSL2 system provides a cost-effective alternative for deploying T1 service over metallic cable pairs. In contrast with traditional T1 service equipment, ADTRAN HDSL2 can be successfully deployed over one unconditioned, nonloaded, bridged-tapped copper pair CSA loop (see Deployment Guidelines, Section 4).

Litespan HDSL2 deployment is typically made from a Litespan 2000, Litespan 2012, or Litespan ONU channel bank assembly. Figure 3 shows possible ADTRAN HDSL2 deployments from a Litespan channel bank assembly. ADTRAN HDSL2 systems can be deployed quickly without the use of expensive T1 repeater equipment on standard CSA loops while using the existing massive copper-fed twisted line pairs in use by the industry.

C A U T I O N

SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

After unpacking the unit, inspect it for damage. If damage is noted, file a claim with the carrier, then contact ADTRAN. Refer to Warranty and Customer

Service.

The Litespan H2TU-C plugs directly into a Litespan channel bank assembly channel unit slot. Litespan system software must be version 11.0.0 or higher. The tip and ring connections from the H2TU-C to the shelf are made through the following card edge pins:

• Narrowband Tip – Pin A3

• Narrowband Ring – Pin A4

CAUTION

Do not deploy the Litespan H2TU-C into any Litespan channel bank assembly slot that has ADSL Power Distribution Fuse and Alarm (PDFA) connections to the wideband pairs of the channel bank assembly.

This unit supports narrowband cabling only on the Litespan RT shelf. For more information regarding cabling, reference Alcatel document Mechanical Unit Descriptions, OSP 363-405-270.

ADTRAN uses negative ground-referenced span powering voltage (–190 VDC) on HDSL2 loop. H2TU-R span powering can be disabled to allow locally powered H2TU-R applications, if desired.

Litespan 2000 or 2012 System with Litespan H2TU-C deployment

Common

Channel Bank

Assembly with

a Litespan

H2TU-C Installed

Typical Starspan System

Common

Control

High-Density

Fiber Bank

61221002L2-5B 3

Control

HDSL2 Loop Pair

HDT

OLNK

HDSL2 Unit

Remote End

ONU-96 with

an installed

Litespan H2TU-C

HDSL2 Loop Pair

HDSL2 Unit

Remote End

Figure 3. Deployment from a Litespan

Channel Bank

Upon insertion of an H2TU-C into an unprovisioned slot, the STAT LED should turn red immediately. The STAT LED will remain red until the Litespan bank recognizes the insertion of the card and downloads the AHDSL2 channel unit type code into the line card. Typically, the STAT LED will remain red for approximately 15 to 20 seconds (time may vary). Approximately 3 to 4 seconds after the STAT LED turns off, the HLOS LED will turn red and remain so until the H2TU-C and H2TU-R units synchronize with each other over the HDSL2 loop. The STAT LED will turn green after synchronization of the HDSL2 loop.

CAUTION

Prior to installing or removing the Litespan H2TU-C, observe the following warning: If the Litespan H2TU-C is removed from a line card slot, wait at least 15 seconds before reinsertion. If connected to the MTI craft interface terminal, wait until the message “AID:MJ,UEQ.” appears (where “AID” is the access identifier). This informs the Litespan common control assembly that the H2TU-C has been removed from its slot, after which the common control assembly begins looking for the reinsertion of the line card. Reinsertion any earlier than this may temporarily lock the H2TU-C into a nonfunctional state because the common control assembly will not send the AHDSL2 equipment type code to the H2TU-C line card.

Compliance

This product is intended for installation in restricted access locations only and in equipment with a Type “B” or “E” enclosure.

WARNING

Up to –200 VDC may be present on telecommunications wiring. The DSX-1 interface is intended for connection to intra-building wiring only. Ensure chassis ground is properly connected.

This product provides span powering voltage (negative only with respect to ground, –190 VDC nominal, GFI protection < 5 mA) and meets all requirements of Bellcore GR-1089-CORE (Class A2) and ANSI T1.418-2002. This product is NRTL listed to the applicable UL standards.

Table 2 shows the compliance codes for this product.

Provisioning

Provisioning of the H2TU-C is through the craft interface on the Maintenance and Test Interface (MTI) card either via TL1 commands or the Litecraft Pro Graphical User Interface (GUI). Refer to the Litecraft

Pro Access Configuration Guide

(P/N 61221002L1-31) for detailed GUI information.

The provisioning and performance monitoring VT100 terminal screens may be viewed from the H2TU-R DB-9 RS-232 craft interface port. However, the provisioning options may not be changed or manipulated in any way from the H2TU-R.

NOTE

Please reference Alcatel document TL1 Software Reference, OSP 363-405-502 for detailed

information regarding provisioning through the MTI craft interface.

The H2TU-C TL1/Litecraft commands are grouped as follows:

• Administration

• Cross-Connect Provisioning

• Maintenance

• HDSL Provisioning

• T1 Provisioning

• Testing

Administration Commands

Administration commands are used to remove or restore the H2TU-C to service, place equipment and facilities In-Service (IS) and Out-of-Service (OOS), and display system inventory. These commands are listed and defined in Table 3.

Cross-Connect Provisioning Commands

Cross-connect Provisioning commands are used to manage cross-connections. These commands are listed and defined in Table 4.

Table 2. Compliance Codes

Code Input Output

Power Code (PC) F C Telecommunication Code (TC) – X Installation Code (IC) A –

4 61221002L2-5B

Maintenance Commands

Maintenance commands are use to clear and retrieve Performance Monitoring (PM) information and to display alarm Statistics. Table 5 lists and defines the available TL1/Litecraft Maintenance commands.

Provisioning Commands

Upon initial insertion of the Litespan H2TU-C into the Litespan system, configuration options are downloaded automatically to the line card and take precedence over the ADTRAN default provisioning options.

NOTE

The provisioning options stored in the shelf controller can be pre-configured by the user through the Litecraft Pro interface.

Table 3. Administration Commands

sdnammoC1LTnoitpircseD

LSDH-VMR )SOO(ecivresmorfC-UT2HnapsetiLehtsevomeR

LSDH-TSR )SI(ecivresotC-UT2HnapsetiLehtserotseR

TPQE-TNE noitisoptolsaottinuasngissarosretnE

TPQE-TLD noitisoptolsaottinuasngissanuroseteleD

Table 6 and Table 7 list and define the available HDSL provisioning commands. The H2TU-C should be pre-provisioned as indicated under “Pre-Configurable Value.”

1T-DEroLSDH-DEtnempiuqeehtstidE

Table 4. Cross-Connect Commands

sdnammoC1LTnoitpircseD

1T-SRC-TNEnoitcennoc-ssorcasretnE

1T-SRC-TLDnoitcennoc-ssorcaseteleD

1T-SRC-VRTR snoitcennoc-ssorcgnitsixeseveirteR

Table 5. Maintenance Commands

sdnammoC1LTnoitpircseD

1T-GER-TINIroLSDH-GER-TINI )0(orezotseulavllastesdnaatadgnirotinomecnamrofrepsraelC

1T-MP-VRTRroLSDH-MP-VRTR atadgnirotinomecnamrofrepseveirteR

LSDH-MLA-VRTRsmralaseveirteR

61221002L2-5B 5

Table 6. HDSL Provisioning Commands

1LT

sdnammoC

tfarcetiL

sretemaraP

LSDH-DEKBPLDINkcabpooLUINdelbasiD

LSDH-DEOMTKBPLemiTkcabpooL

tuO

LSDH-DERTCAKBPLdnalgnEweN

LSDH-DEEDOM1TFgnihctaL

LSDH-DEPLrewoPnapSdelbasiD

LSDH-DEEDCTCAEDKBPLssoLremotsuC

LSDH-DECTCAKBPLgnittesMRP

C-UT2H snoitpO

kcabpooL

rotacidnI

3,1

C-UT2H

sgnitteSelbaliavA

delbanE

setuniM02 setuniM06

setuniM021

SEY

02 06

021

delbasiD

delbanE

1TF

SEY

KNIS

delbanE

SIA

IC/SIA

kcabpooL

enoN MRPS

MRPN

)htoB(otuA

gnidnopserroC

sgnitteStfarcetiL

eulaV

elbarugifnoC-erP

SEY

021

0000000000000000

1000000000000000

ECRUOS

0000000000000000

1000000000000000 1000000000000000 0100000000000000

0000000000000000

1000000000000000 1000000000000000 0100000000000000 1100000000000000

LSDH-DEVLAPKKWTNpeeKkrowteN

evilA

LSDH-SOG-DERNSnigraMRNS

delbasiD

delbanE

Bd51ot051ot0

SEY

mralA

dlohserhT

LSDH-SOG-DEALpooL

Bd04ot004ot0

noitaunettA

mralA

dlohserhT

Some settings may not be available at the H2TU-R.

This option is available only if the H2TU-R P/N 1221026L1, 1222026L1 or 1223026L1 is used in the circuit.

This option is not available if the H2TU-R P/N 1221026L6, 1222026L6 or 1223026L1 is used in the circuit.

Table 7. T1 Provisioning Commands

1LT

sdnammoC

1T-DEEDCENILedoCeniLIMA

1T-DETMFgnimarF

1T-DETAleveLXT1SD

Some settings may not be available at the H2TU-R.

tfarcetiL

sretemaraP

C-UT2H snoitpO

C-UT2H

sgnitteSelbaliavA

IMA

SZ8B

FSE

demarfnU

OTUA

Bd0

− Bd5.7

− Bd51

SZ8B

FSE

RFNU

OTUA

0.0

5.7

0.51

gnidnopserroC

sgnitteStfarcetiL

eulaV

elbarugifnoC-erP

SZ8B

OTUA

0.0

6 61221002L2-5B

Testing Commands

The H2TU-C testing commands are used to initiate and terminate loopbacks and disconnect for testing purposes. Table 8 lists and defines the TL1/Litecraft testing commands.

NOTE

Before entering loopbacks, the user needs to remove the card from service. This can be done with the RMV-HDSL command. The card can then be restored to service with the RST-HDSL command.

NOTE

When entering access identification (AID), the user needs to specify whether a loopback command is for a C or an R. For example, AID=RT-1-21-C.

Alarms

The selectable alarm threshold crossing alerts are as follows:

• SNR margin threshold

• HDSL2 and DS1 15-minute ES, SES, UAS

thresholds

• HDSL2 and DS1 daily ES, SES, UAS thresholds

• HDSL2 loop attenuation threshold

• DS1 15-minute CV-L, B8ZSS-L, and PDVS-L

thresholds

• DS1 daily CV-L, B8ZSS-L, and PDVS-L thresholds

The following additional alarm conditions are provided by the H2TU-C:

• HDSL2 LOSW alarm

• HDSL2 unit failure alarm

• HDSL2 loop continuity alarms

• HDSL2 circuit reset

• DS1 LOS alarm

• H2TU-R AIS, RAI, INCRAI-CI

Power Requirements

When deploying any Litespan H2TU-C, the power requirements for the application should also be considered for product mix calculations and maximum number of Litespan H2TU-Cs within a channel bank assembly. Use Worksheet PW-1 in the “Engineering and Planning” section of Alcatel practice, OSP TL1 Software Documentation, release

7.1 or higher, to determine whether a particular combination of channel units is within power-drain specifications.

Table 8. Testing Commands

1LT

sdnammoC

LSDH-KBPL-RPO)C-DIA(NCOLkcabpooLkrowteNC-UT2HpUpooLDNEN

LSDH-KBPL-SLR)C-DIA(NCOLkcabpooLkrowteNC-UT2HnwoDpooLDNEN

LSDH-KBPL-RPO)C-DIA(NCOLkcabpooLremotsuCC-UT2HpUpooLDNEF

LSDH-KBPL-SLR)C-DIA(NCOLkcabpooLremotsuCC-UT2HnwoDpooLDNEF

LSDH-KBPL-RPO)R-DIA(NCOLkcabpooLkrowteNR-UT2HpUpooLDNEN

LSDH-KBPL-SLR)R-DIA(NCOLkcabpooLkrowteNR-UT2HnwoDpooLDNEN

LSDH-KBPL-RPO)R-DIA(NCOLkcabpooLremotsuCR-UT2HpUpooLDNEF

LSDH-KBPL-SLR)R-DIA(NCOLkcabpooLremotsuCR-UT2HnwoDpooLDNEF

tfarcetiL

sretemaraP

C-UT2H snoitpO

sgnitteS

elbaliavAC-UT2H

gnidnopserroC

sgnitteStfarcetiL

61221002L2-5B 7

1234

WORKING LENGTH OF 26 GAUGE CABLE (KFT)

WORKING LENGTH OF 24 GAUGE (OR COARSER) CABLE (KFT)

56789

2.5

2.0

1.5

1.0

0.5

0.0

TOTAL

BRIDGED

TAP

LENGTH

(KFT)

VALID CABLE LENGTHS

INVALID CABLE LENGTHS

Table 9 lists the ADTRAN Litespan H2TU-C and H2TU-R factors needed to calculate channel bank power using Worksheet PW-1.

The Table 9 power factors are derived from the power parameters listed in Table 10.

4. DEPLOYMENT GUIDELINES

The ADTRAN HDSL2 system is designed to provide DS1-based services over loops designed to comply with carrier service area (CSA) guidelines. CSA deployment guidelines are given below.

1. All loops are nonloaded only.

2. For loops with 26-AWG cable, the maximum loop length including bridged tap lengths is 9 kft.

3. For loops with 24-AWG cable, the maximum loop length including bridged tap lengths is 12 kft.

4. Any single bridged tap is limited to 2 kft.

5. Total bridged tap length is limited to 2.5 kft.

6. The total length of multigauge cable containing 26-AWG cable must not exceed the following:

12 - {(3*L L

)/(9 - L

} (in kft.)

BTAP

= total length of 26-AWG cable excluding bridged taps (in kft.)

= total length of all bridged taps (in kft.)

BTAP

Table 10. Power Parameters

ADTRAN Litespan H2TU-C

Power Bus

+5 V

-48 V Switch battery Power consumption Power dissipation

and AH2TU-R

324 mA 125 mA 6 W 3 W

7. Recommended loop resistance for circuit deployment is ≤ 750 Ω (9 kft. of 26 AWG).

This deployment criteria is summarized in the chart shown in Figure 4.

Figure 4. Deployment Guidelines

R-UT2HnapsetiLNARTDA423.0ANAN521.0

noitarugifnoCrotcaFnmuloCArotcaFnmuloCBrotcaFnmuloCCrotcaFnmuloCD

Table 9. Worksheet PW-1 Factors

8 61221002L2-5B

Loop loss per kft for other wire is summarized in Table 11.

Table 11. HDSL2 Loss Values

Temperature (°F)

Cable Gauge

Cable Type

PIC

Pulp

PIC

Pulp

PIC

Pulp

PIC

Pulp

3.902 4.051 4.253

4.030 4.179 4.381

2.863 2.957 3.083

3.159 3.257 3.391

2.198 2.255 2.333

2.483 2.450 2.629

1.551 1.587 1.634

1.817 1.856 1.909

120

Table 12 provides the recommended maximum local loop loss information for PIC cable at 70ºF, 135 ohms, resistive termination.

An approximation for the maximum amount of wideband noise on an HDSL2 local loop as measured by a 50 kb filter is

< 31 dBrn.

Table 12. Loop Insertion Loss Data

)zH(ycneuqerF)Bd(ssoLmumixaM

000,3 000,01 000,05 000,001 000,051 000,691 000,002 000,052 000,523

0.21

0.51

5.52

0.03

57.23

0.53

52.53

05.73

00.24

NOTE

These approximations are to be used as guidelines only and may vary slightly on different loops. Adhering to the guidelines should produce performance in excess of 10-7 BER.

For further information regarding deployment guidelines, and applications, reference ADTRAN’s Supplemental Deployment Information for HDSLx, document P/N 61221HDSLL1-10.

An approximation for the maximum level of impulse noise as measured using a 50 kb filter on an HDSL2 loop is

< 50 dBrn.

5. MAINTENANCE

The ADTRAN Litespan H2TU-C requires no routine maintenance. ADTRAN does not recommend that repairs be performed in the field. Repair services may be obtained by returning the defective unit to the ADTRAN Customer and Product Service (CAPS) department.

61221002L2-5B 9

+ 21 hidden pages

ADTRAN AHDSL2 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual