Adc Higain h2tu-c-319 list 4e Original operating instructions

DNV C ertificatio n, Inc.

REGISTERED FIRM

ISO 9001/TL 9000

HiGain

THE H2TU-C-319 LIST 3F

The H2TU-C-319 List 3F line unit is the Central Office (CO) side of a T1

transmissionsystem.TheH2TU-C,whenusedwithanH2TU-Rremoteunit,transmits

a 1.544 Mbps payload on one unconditioned copper pair over the full Carrier Service

Area (CSA) range. The H2TU-C-319 List 3F is designed to mount in 3192 mechanics

shelves.

FEATURES

SPECIFICATIONS

The H2TU-C-319 List 3F complies with the protection

switching features of the PSC-606 List 1 protectionswitching

card as detailed in document number LTPH-TP-1006-xx.

Front-panel features: status LED, craft port for

maintenance screen access, MODE and LBK

pushbuttons for displaying system parameters and

activating loopback commands (including dual

loopbacks), DSX-1 access jacks, and a

four-character status display

HDSL2 transmission features:

•Full-duplex transmission on one copper pair

•Grounded loop detection on HDSL2 span

Maintenance screens for inventory, provisioning,

performance monitoring, and troubleshooting,

including:

•Remote provisioning and PM data retrieval

through TL1 FDL or 11-bit inband commands

•Supports automatic protection switching (APS)

•Loop attenuation and insertion loss reporting

•Power Back Off (PBON and PBOC) for

configuring HDSL2 transmit power levels to

reduce crosstalk

•Report menu option for downloading status and

performance data

•Non-volatile storage of performance monitoring

parameters

•Customer disconnect indication alarms (AIS-CI

and RAI-CI alarm patterns)

•Remote unit test signal generator

•Payload retrieval of margin and pulse

attenuation parameters (DBDB)

•Performance Report Messaging (SPRM,

NPRM, and AUTO)

Operating Temperature -40°F to +149°F (-40°C to +65°C)

Operating Humidity 5% to 95% non-condensing

HDSL2 Span Voltage 0 or -180 Vdc ±5 Vdc

CO Supply -48 Vdc nominal (-42.5 Vdc to -56.5 Vdc)

Mounting 3192 mechanics shelves

HDSL2 Line Rate 1.552 Mbps Overlapped Pulse Amplitude Modulation Transmission

with Interlocking Spectra (OPTIS)

HDSL2 Output +16.8 dBm ±0.5 dBm, 135Ωat CO side

+16.5 dBm ±0.5 dBm, 135Ωat remote side

Maximum Insertion Loss 35 dB @ 196 kHz

Maximum Loop Attenuation 28 dB

DSX-1 Line Rate 1.544 Mbps ±200 bps

DSX-1 Line Format Alternate Mark Inversion (AMI)or Bipolar with 8-Zero Substitution (B8ZS)

DSX-1 Frame Format Automatic detection of Extended SuperFrame and SuperFrame (AUTO)

or Unframed (UNFR)

DSX-1 Pulse Output 6 Vpk-pk, pre-equalized for 0 to 655 feet of ABAM cable

DSX-1 Input Level +1.5 dB to -7.5 dB DSX

INSTALLATION

Align the H2TU-C with the shelf card-slot guides and slide the unit in. Push on the

H2TU-C front panel to snap the unit into place.

POWER-UPSEQUENCE

When the H2TU-C powers up, the four-character display illuminates and displays

status messages.

If the H2TU-C is unable to communicate with the H2TU-R, it displays various alarm

and status messages. If the H2TU-C is able to communicate with the H2TU-R, the

following occurs:

•The Status LED flashes red while acquiring the H2TU-R and then turns a steady

green when the entire system is operating with no alarms. (The DS1 signal must

be present.)

•The front-panel display reports signal-to-noise ratio (SNR) margin readings

(should be ≥6 dB) and loop attenuation (should be < 28 dB).

•After the system powers up, alarm conditions that exist are reported on the

display. (The H2TU-C reports alarms if no DS1 signal is applied.)

PROVISIONING

Perform these basic provisioning tasks:

1Connect a maintenance terminal to the craft port (see front-panel illustration

inside) and log on. (If logging on through the management unit, the default

password is public.) Press + to refresh the logon screen, if necessary.

Refer to the onscreen Help menu for navigational aids or use the (to

cycle through selections), (to activate the current setting, choice, or to

display a menu), or (to return to the parent menu), or directional

arrow keys (to navigate to a menu or item)

2Select Config, Date and Time, then type the date and time.

3Select Inventory, then type the unit ID numbers.

4Change the settings of any system parameters, if necessary, by selecting Config,

then Standard Options or ADC Options. (Configuration options and their

current settings can be read from the front panel using the MODE pushbutton.

See Table 4 inside.)

Once the H2TU-C is successfully installed and provisioned, access the Monitor,

Performance, or Event Log menus to clear the Performance, Alarm History, or Event

Log screens, or use Master Clear in the Config menu.

Continued

CTRL R

SPACEBAR

ENTER

ESC F11

H2TU-C-319 LIST 3F

LINE UNIT

QUICK INSTALLATION

FCC Class A Compliance

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference when the equipment is operated in a commercial environment. This equipment generates, uses,

and can radiate radio frequency energy and, if not installed and used in accordance with the instruction

manual, may cause harmful interference to radio communications. Operation of this equipment in a

residential area is likely to cause harmful interference in which case the user will be required to correct the

interference at his own expense.

Limited Warranty

Product warranty is determined by your service agreement. Contact your sales representative or Customer

Service for details.

Modifications

Any changes or modifications made to this device that are not expressly approved by ADC DSL Systems,

Inc. voids the user's warranty.

All wiring external to the products should follow the provisions of the current edition of the National

Electrical Code.

Standards Compliance

This equipment has been tested and verified to comply with the applicable sections of the following safety

standards:

❑GR 63-CORE - Network Equipment-Building System (NEBS) Requirements

❑GR 1089-CORE - Electromagnetic Compatibility and Electrical Safety

❑Binational standard, UL-1950/CSA C22.2 No. 950-95: Safety of Information Technology Equipment.

Trademark Information

ADC is a registered trademark of ADC Telecommunications, Inc. Other product names mentioned in this

installation guide are used for identification purposes only and may be trademarks or registered trademarks

of their respective companies.

private to ADC DSL Systems, Inc., and shall not be modified, used, copied, reproduced or disclosed in

whole or in part without the written consent of ADC.

ADC DSL Systems, Inc.

14402 Franklin Avenue

Tustin, CA 92780-7013

Tel: 714.832.9922

Fax: 714.832.9924

Technical Assistance

Tel: 800.638.0031

Tel: 714.730.3222

Fax: 714.730.2400 ´,Aj¶8ß¨

1233748

May 31, 2002

Product Catalog: H2TU-C-319-L3F

CLEI: VACJLU3E

Document: LTPH-QI-1145-01

DNV C ertificatio n, Inc.

REGISTERED FIRM

ISO 9001/TL 9000

HiGain

THE H2TU-C-319 LIST 3F

The H2TU-C-319 List 3F line unit is the Central Office (CO) side of a T1

transmissionsystem.The H2TU-C, when used withan H2TU-R remoteunit,transmits

a 1.544 Mbps payload on one unconditioned copper pair over the full Carrier Service

Area (CSA) range. The H2TU-C-319 List 3F is designed to mount in 3192 mechanics

shelves.

FEATURES

SPECIFICATIONS

The H2TU-C-319 List 3F complies with the protection

switching features of the PSC-606 List 1 protectionswitching

card as detailed in document number LTPH-TP-1006-xx.

Front-panel features: status LED, craft port for

maintenance screen access, MODE and LBK

pushbuttons for displaying system parameters and

activating loopback commands (including dual

loopbacks), DSX-1 access jacks, and a

four-character status display

HDSL2 transmission features:

•Full-duplex transmission on one copper pair

•Grounded loop detection on HDSL2 span

Maintenance screens for inventory, provisioning,

performance monitoring, and troubleshooting,

including:

•Remote provisioning and PM data retrieval

through TL1 FDL or 11-bit inband commands

•Supports automatic protection switching (APS)

•Loop attenuation and insertion loss reporting

•Power Back Off (PBON and PBOC) for

configuring HDSL2 transmit power levels to

reduce crosstalk

•Report menu option for downloading status and

performance data

•Non-volatile storage of performance monitoring

parameters

•Customer disconnect indication alarms (AIS-CI

and RAI-CI alarm patterns)

•Remote unit test signal generator

•Payload retrieval of margin and pulse

attenuation parameters (DBDB)

•Performance Report Messaging (SPRM,

NPRM, and AUTO)

Operating Temperature -40°F to +149°F (-40°C to +65°C)

Operating Humidity 5% to 95% non-condensing

HDSL2 Span Voltage 0 or -180 Vdc ±5 Vdc

CO Supply -48 Vdc nominal (-42.5 Vdc to -56.5 Vdc)

Mounting 3192 mechanics shelves

HDSL2 Line Rate 1.552 Mbps Overlapped Pulse Amplitude Modulation Transmission

with Interlocking Spectra (OPTIS)

HDSL2 Output +16.8 dBm ±0.5 dBm, 135Ωat CO side

+16.5 dBm ±0.5 dBm, 135Ωat remote side

Maximum Insertion Loss 35 dB @ 196 kHz

Maximum Loop Attenuation 28 dB

DSX-1 Line Rate 1.544 Mbps ±200 bps

DSX-1 Line Format Alternate Mark Inversion (AMI)or Bipolar with 8-Zero Substitution (B8ZS)

DSX-1 Frame Format Automatic detection of Extended SuperFrame and SuperFrame (AUTO)

or Unframed (UNFR)

DSX-1 Pulse Output 6 Vpk-pk, pre-equalized for 0 to 655 feet of ABAM cable

DSX-1 Input Level +1.5 dB to -7.5 dB DSX

INSTALLATION

Align the H2TU-C with the shelf card-slot guides and slide the unit in. Push on the

H2TU-C front panel to snap the unit into place.

POWER-UPSEQUENCE

When the H2TU-C powers up, the four-character display illuminates and displays

status messages.

If the H2TU-C is unable to communicate with the H2TU-R, it displays various alarm

and status messages. If the H2TU-C is able to communicate with the H2TU-R, the

following occurs:

•The Status LED flashes red while acquiring the H2TU-R and then turns a steady

green when the entire system is operating with no alarms. (The DS1 signal must

be present.)

•The front-panel display reports signal-to-noise ratio (SNR) margin readings

(should be ≥6 dB) and loop attenuation (should be < 28 dB).

•After the system powers up, alarm conditions that exist are reported on the

display. (The H2TU-C reports alarms if no DS1 signal is applied.)

PROVISIONING

Perform these basic provisioning tasks:

1Connect a maintenance terminal to the craft port (see front-panel illustration

inside) and log on. (If logging on through the management unit, the default

password is public.) Press + to refresh the logon screen, if necessary.

Refer to the onscreen Help menu for navigational aids or use the (to

cycle through selections), (to activate the current setting, choice, or to

display a menu), or (to return to the parent menu), or directional

arrow keys (to navigate to a menu or item)

2Select Config, Date and Time, then type the date and time.

3Select Inventory, then type the unit ID numbers.

4Change the settings of any system parameters, if necessary, by selecting Config,

then Standard Options or ADC Options. (Configuration options and their

current settings can be read from the front panel using the MODE pushbutton.

See Table 4 inside.)

Once the H2TU-C is successfully installed and provisioned, access the Monitor,

Performance, or Event Log menus to clear the Performance, Alarm History, or Event

Log screens, or use Master Clear in the Config menu.

Continued

CTRL R

SPACEBAR

ENTER

ESC F11

H2TU-C-319 LIST 3F

LINE UNIT

QUICK INSTALLATION

FCC Class A Compliance

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference when the equipment is operated in a commercial environment. This equipment generates, uses,

and can radiate radio frequency energy and, if not installed and used in accordance with the instruction

manual, may cause harmful interference to radio communications. Operation of this equipment in a

residential area is likely to cause harmful interference in which case the user will be required to correct the

interference at his own expense.

Limited Warranty

Product warranty is determined by your service agreement. Contact your sales representative or Customer

Service for details.

Modifications

Any changes or modifications made to this device that are not expressly approved by ADC DSL Systems,

Inc. voids the user's warranty.

All wiring external to the products should follow the provisions of the current edition of the National

Electrical Code.

Standards Compliance

This equipment has been tested and verified to comply with the applicable sections of the following safety

standards:

❑GR 63-CORE - Network Equipment-Building System (NEBS) Requirements

❑GR 1089-CORE - Electromagnetic Compatibility and Electrical Safety

❑Binational standard, UL-1950/CSA C22.2 No. 950-95: Safety of Information Technology Equipment.

Trademark Information

ADC is a registered trademark of ADC Telecommunications, Inc. Other product names mentioned in this

installation guide are used for identification purposes only and may be trademarks or registered trademarks

of their respective companies.

private to ADC DSL Systems, Inc., and shall not be modified, used, copied, reproduced or disclosed in

whole or in part without the written consent of ADC.

ADC DSL Systems, Inc.

14402 Franklin Avenue

Tustin, CA 92780-7013

Tel: 714.832.9922

Fax: 714.832.9924

Technical Assistance

Tel: 800.638.0031

Tel: 714.730.3222

Fax: 714.730.2400 ´,Aj¶8ß¨

1233748

May 31, 2002

Product Catalog: H2TU-C-319-L3F

CLEI: VACJLU3E

Document: LTPH-QI-1145-01

DNV C ertificatio n, Inc.

REGISTERED FIRM

ISO 9001/TL 9000

HiGain

THE H2TU-C-319 LIST 3F

The H2TU-C-319 List 3F line unit is the Central Office (CO) side of a T1

transmissionsystem.The H2TU-C, when used withan H2TU-R remoteunit,transmits

a 1.544 Mbps payload on one unconditioned copper pair over the full Carrier Service

Area (CSA) range. The H2TU-C-319 List 3F is designed to mount in 3192 mechanics

shelves.

FEATURES

SPECIFICATIONS

The H2TU-C-319 List 3F complies with the protection

switching features of the PSC-606 List 1 protectionswitching

card as detailed in document number LTPH-TP-1006-xx.

Front-panel features: status LED, craft port for

maintenance screen access, MODE and LBK

pushbuttons for displaying system parameters and

activating loopback commands (including dual

loopbacks), DSX-1 access jacks, and a

four-character status display

HDSL2 transmission features:

•Full-duplex transmission on one copper pair

•Grounded loop detection on HDSL2 span

Maintenance screens for inventory, provisioning,

performance monitoring, and troubleshooting,

including:

•Remote provisioning and PM data retrieval

through TL1 FDL or 11-bit inband commands

•Supports automatic protection switching (APS)

•Loop attenuation and insertion loss reporting

•Power Back Off (PBON and PBOC) for

configuring HDSL2 transmit power levels to

reduce crosstalk

•Report menu option for downloading status and

performance data

•Non-volatile storage of performance monitoring

parameters

•Customer disconnect indication alarms (AIS-CI

and RAI-CI alarm patterns)

•Remote unit test signal generator

•Payload retrieval of margin and pulse

attenuation parameters (DBDB)

•Performance Report Messaging (SPRM,

NPRM, and AUTO)

Operating Temperature -40°F to +149°F (-40°C to +65°C)

Operating Humidity 5% to 95% non-condensing

HDSL2 Span Voltage 0 or -180 Vdc ±5 Vdc

CO Supply -48 Vdc nominal (-42.5 Vdc to -56.5 Vdc)

Mounting 3192 mechanics shelves

HDSL2 Line Rate 1.552 Mbps Overlapped Pulse Amplitude Modulation Transmission

with Interlocking Spectra (OPTIS)

HDSL2 Output +16.8 dBm ±0.5 dBm, 135Ωat CO side

+16.5 dBm ±0.5 dBm, 135Ωat remote side

Maximum Insertion Loss 35 dB @ 196 kHz

Maximum Loop Attenuation 28 dB

DSX-1 Line Rate 1.544 Mbps ±200 bps

DSX-1 Line Format Alternate Mark Inversion (AMI)or Bipolar with 8-Zero Substitution (B8ZS)

DSX-1 Frame Format Automatic detection of Extended SuperFrame and SuperFrame (AUTO)

or Unframed (UNFR)

DSX-1 Pulse Output 6 Vpk-pk, pre-equalized for 0 to 655 feet of ABAM cable

DSX-1 Input Level +1.5 dB to -7.5 dB DSX

INSTALLATION

Align the H2TU-C with the shelf card-slot guides and slide the unit in. Push on the

H2TU-C front panel to snap the unit into place.

POWER-UPSEQUENCE

When the H2TU-C powers up, the four-character display illuminates and displays

status messages.

If the H2TU-C is unable to communicate with the H2TU-R, it displays various alarm

and status messages. If the H2TU-C is able to communicate with the H2TU-R, the

following occurs:

•The Status LED flashes red while acquiring the H2TU-R and then turns a steady

green when the entire system is operating with no alarms. (The DS1 signal must

be present.)

•The front-panel display reports signal-to-noise ratio (SNR) margin readings

(should be ≥6 dB) and loop attenuation (should be < 28 dB).

•After the system powers up, alarm conditions that exist are reported on the

display. (The H2TU-C reports alarms if no DS1 signal is applied.)

PROVISIONING

Perform these basic provisioning tasks:

1Connect a maintenance terminal to the craft port (see front-panel illustration

inside) and log on. (If logging on through the management unit, the default

password is public.) Press + to refresh the logon screen, if necessary.

Refer to the onscreen Help menu for navigational aids or use the (to

cycle through selections), (to activate the current setting, choice, or to

display a menu), or (to return to the parent menu), or directional

arrow keys (to navigate to a menu or item)

2Select Config, Date and Time, then type the date and time.

3Select Inventory, then type the unit ID numbers.

4Change the settings of any system parameters, if necessary, by selecting Config,

then Standard Options or ADC Options. (Configuration options and their

current settings can be read from the front panel using the MODE pushbutton.

See Table 4 inside.)

Once the H2TU-C is successfully installed and provisioned, access the Monitor,

Performance, or Event Log menus to clear the Performance, Alarm History, or Event

Log screens, or use Master Clear in the Config menu.

Continued

CTRL R

SPACEBAR

ENTER

ESC F11

H2TU-C-319 LIST 3F

LINE UNIT

QUICK INSTALLATION

FCC Class A Compliance

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference when the equipment is operated in a commercial environment. This equipment generates, uses,

and can radiate radio frequency energy and, if not installed and used in accordance with the instruction

manual, may cause harmful interference to radio communications. Operation of this equipment in a

residential area is likely to cause harmful interference in which case the user will be required to correct the

interference at his own expense.

Limited Warranty

Product warranty is determined by your service agreement. Contact your sales representative or Customer

Service for details.

Modifications

Any changes or modifications made to this device that are not expressly approved by ADC DSL Systems,

Inc. voids the user's warranty.

All wiring external to the products should follow the provisions of the current edition of the National

Electrical Code.

Standards Compliance

This equipment has been tested and verified to comply with the applicable sections of the following safety

standards:

❑GR 63-CORE - Network Equipment-Building System (NEBS) Requirements

❑GR 1089-CORE - Electromagnetic Compatibility and Electrical Safety

❑Binational standard, UL-1950/CSA C22.2 No. 950-95: Safety of Information Technology Equipment.

Trademark Information

ADC is a registered trademark of ADC Telecommunications, Inc. Other product names mentioned in this

installation guide are used for identification purposes only and may be trademarks or registered trademarks

of their respective companies.

private to ADC DSL Systems, Inc., and shall not be modified, used, copied, reproduced or disclosed in

whole or in part without the written consent of ADC.

ADC DSL Systems, Inc.

14402 Franklin Avenue

Tustin, CA 92780-7013

Tel: 714.832.9922

Fax: 714.832.9924

Technical Assistance

Tel: 800.638.0031

Tel: 714.730.3222

Fax: 714.730.2400 ´,Aj¶8ß¨

1233748

May 31, 2002

Product Catalog: H2TU-C-319-L3F

CLEI: VACJLU3E

Document: LTPH-QI-1145-01

LOOPBACK TESTING

Initiate loopback testing from the maintenance menus or use the MODE and LBK

pushbuttons. The inband codes shown below can be sent by a test set.

Table 1. GNLB Loopback Commands

Loopback Inband Code Description

NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C.

NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R.

COLB (a)

(a) Dual loopbacks are only initiated from the MODE and LBK pushbuttons.

DSX-1 signal is looped back to the network at the H2TU-C and signal from the

customer is looped back to the customer at the H2TU-C.

RULB (a) DSX-1 signal is looped back to the network at the H2TU-R and signal from the

customer is looped back to the customer at the H2TU-R.

CREM 1111110 DS1 signal from customer is looped back to the customer at the H2TU-C.

CLOC 1111100 DS1 signal from customer is looped back to the customer at the H2TU-R.

SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R SmartJack module.

Loopdown 11100 Deactivates any of the above loopbacks.

Table 2. Front-Panel Alarm Messages (a)

(a) Front-panel alarm messages are listed in order of priority. ALRM displays prior to any alarm message.

Pressing the LBK pushbutton initiates an Alarm Cutoff (ACO) message.

Message Description

PWR FEED SHRT (b)

(b) Message displays repeatedly as long as the alarm condition exists, and is not included in the priority order.

A short between the Tip and Ring of the HDSL2 pair.

PWR FEED GND (b) The HDSL2 loop is grounded.

PWR FEED OPEN (b) A line-power open condition.

LOSW The HDSL2 loop has lost synchronization.

LLOS No signal is detected at the DSX-1 input to the H2TU-C.

RLOS No signal is detected at the DS1 input to the H2TU-R.

LAIS (c)

Line Alarm Indication Signal.

RAIS (c) Remote Alarm Indication Signal.

TRCI (c) An RAI alarm (yellow) from the Customer Premises Equipment (CPE) with an

error-free signal from the line unit or network.

RRAI(c) An RAI alarm (yellow) from the CPE with errors from the line unit or network.

xxx-DBER (c) A system DS1 Bit Error Rate (BER) alarm. (xxx denotes either Transmission Unit

Central Office [TUC] or Transmission Unit Remote End [TUR].)

PRMF (c) H2TU-R Performance Report Messaging BER threshold exceeded at far end.

PRMN (c) H2TU-R Performance Report Messaging BER threshold exceeded at near end.

xxx-HBER A system HDSL2 Block Error Rate (BER) alarm. (xxx denotes either TUC or TUR.)

xxx-MAL The margin on the HDSL2 loop has dropped below the threshold setting.

(xxx denotes either TUC or TUR.)

xxx-LA The attenuation on the HDSL2 loop has exceeded the maximum threshold value.

(xxx denotes either TUC or TUR.)

To comply with the intrabuilding wiring requirements of GR-1089

CORE, Section 4.5.9, the shields of the ABAM-type cables that

connect the line unit DSX-1 output ports to the cross-connect

panel must be grounded at both ends.

Network

H2TU-C H2TU-R

TLOS*

NLOC CREM CLOC

NREM

SMJK

* When enabled, TLOS is an automatic loopback

that occurs with an LOS at the remote DS1 input.

Downstream

Upstream

Customer

Premises

DS1

DSX-1

Table 3. Front-Panel Diagnostic Messages

Message (a)

(a) Normal operating messages are in bold.

Description

A=xx The Attenuation (A) message appears followed by xx, where xx is the highest loop

attenuation measured in dB.

ACQ The multiplexers of the H2TU-C and H2TU-R are trying to establish synchronization.

ARM Armed to respond to Intelligent Repeater Loop (ILR) codes.

BAD RT? The H2TU-C is not receiving a response from the H2TU-R.

FERR A framing bit error has occurred at H2TU-C DSX-1 input.

HES H2TU-C HDSL2 loop cyclical redundancy check (CRC) error.

LBPV A local bipolar violation has been received at the DSX-1 input to the H2TU-C.

M=xx Indicates the power of the received HDSL2 signal relative to noise (S/N with respect to

21.5 dB).

MNGD The H2TU-C is under control of the HMU-319 network management unit.

PWR FEED OFF HDSL2 span power is turned off.

PWR FEED ON HDSL2 loop is not grounded or shorted.

SIG The transceivers of the H2TU-C and H2TU-R are trying to establish contact with each

other over the HDSL2 loop.

Table 4. Front-Panel Read-Only Settings Using MODE(a)

(a) Front-panel codes scroll in the order listed. The configured selections follow each code.

Message Function (b)

(b) Default values are in bold.

VER x.xx Software version number of the H2TU-C.

LIST xx List number of the H2TU-C.

FRM xxxx Frame pattern received from the DSX-1 (SF, ESF, or UNFR).

CODE xxxx Line code (AMI or B8ZS).

LATT xx Loop attenuation threshold setting (38).

MARG xx Margin threshold setting (4).

EQL Sets the DSX-1 equalizer to: 0 (0 to 132 ft.), 133 (133 to 265 ft.),

266 (266 to 398 ft.), 399 (399 to 532 ft.), or 533 (533 to 655 ft.).

RLBO H2TU-R line buildout to DS1 is set to 0 dB, -7.5 dB, or -15 dB.

LPBK Enables (ENA) or disables (DIS) SmartJack loopback commands.

SPLB xxxx Configures system for generic (GNLB) or specialinband loopback commands (A1LB, A2LB, A3LB, A4LB, or

A5LB).

PWRF OFF = disables line power; ON =-180 Vdc.

HBER 1E-6 or 1E-7 = indicates HDSL2 BER alarm threshold setting. NONE = no generation of a system

alarm due to BER.

DBER Enables (ENA) or disables (DIS) fixed 24-hour DSX-1 BER alarm threshold.

LBTO Loopback timeout = NONE, 20 min, 60 min, 120 minutes, 8-hour, or 24-hour.

ALM Enables (ENA) or disables (DIS) alarm indications on pin H.

DS1 DSX-1 line code = B8ZS or AMI.

CONV H2TU-R frame format conversion = OFF (framing determined by the DS1 FRMG option),

ACON (autodetection of framing and potential frame conversion at the H2TU-R), or

FCON (autodetection of framing and forced frame format conversion at the H2TU-R).

FRMG DS1 frame formatting = AUTO (automatic framing) or UNFR (unframed).

RDA Enables (ENA) or disables (DIS) alarm indications due to remote DS1 LOS at H2TU-R input.

ALMP Enables system to output an alarm pattern: Alarm Indication Signal (AIS) or Loss of Signal (LOS).

BPVT Enables (ENA) or disables (DIS) Bipolar Violation Transparency.

NLBP Enables the H2TU-R to transmit either AIS or LOS towards CI for any network loopback.

TLOS Enables (ENA) or disables (DIS) a logic loopback at the H2TU-R when an LOS occurs at its DS1 input.

PRM OFF = no enhanced Performance Report Messaging; SPRM = Supplemental PRM;

NPRM = Network PRM; AUTO = SPRM + NPRM.

NAIS If ALMP is set to AIS, this option specifies which pattern is sent to the network when a remote LOS

or AIS occurs. CI = AIS-CI sent to the network; AIS = AIS sent to the network.

ROVR Enables (ENA) or disables (DIS) conversion of an ESF DS1 payload from the network with an

embedded RAI pattern to an SF-RAI pattern towards the CI at the H2TU-R. CONV option must be

set to FCON or ACON.

RACI Enables (ENA) or disables (DIS) conversion of a DS1 SF-RAI signal received by the H2TU-R to an

SF-RAI-CI signal towards the network.

PBON Configures the power output levels of the H2TU-C network unit toward the customer to comply with

Default (DEF) or Enhanced (ENH) templates.

PBOC Configures the power output levels of the H2TU-R customer unit toward the network to comply with

Default (DEF) or Enhanced (ENH) templates.

Copies of this publication or the user manual (LTPH-UM-1144-xx)

can be downloaded from the ADC website at www.adc.com. To

order a hard copy, please contact your sales representative.

Four-character display

DSX-1 access jacks

List number

Status LED

Displays status, provisioning, and

alarm messages. See table below

for a list of message descriptions.

Connect standard test equipment.

Craft port

To access all system maintenance, provisioning

and performance screens, connect a standard

9-pin terminal cable between the serial port

on a PC and the H2TU-C craft port.

LINE Provides splitting jack access to

(XMT) and from (RCV) the HDSL2 span

at the DSX-1 interface.

BRG Provides non-intrusive bridging jack

access to (XMT) and from (RCV) the

HDSL2 span at the DSX-1 interface.

Allows monitoring of the T1 payloads.

MaintenanceTerminal Modem Settings

SETUP

STATUS

Front Panel

A Customer Remote (CREM)

loopback or a Network Local

(NLOC) loopback is in effect.

Green LED Normal operation.

HDSL2 acquisition or

system alarm.

Red LED Fuse alarm.

Flashing Red LED

Yellow LED

FlashingYellow LED System is in Armed (ARM)

mode.

Off Line power is off.

HiGain

HDSL2

DCE

Card-Edge Connector

GND

HDSL2SpanTip HDSL2SpanRing

SystemAlarm** ManagementBus**

Frame GND -48Vdc BAT

Fuse Alarm*

Factory burn-in

(Donotuse)

(XMT)DSX-1TXTip DSX-1TXRing(XMT)

(RCV)DSX-1 RCVTip1 DSX-1RCVRing1(RCV)

Fuse Alarm

System Alarm and Management Bus (reserved)

Normal = Floating (0 to -60 Vdc maximum)

Activated = -48Vdc, 10 mA maximum

Handle

(CLEI code and ECI bar code label on outside of handle)

9600 baud

8 data bits

No parity

1 stop bit

Hardware flow control:OFF

Terminal emulation:VT100

Use the MODE and LBK pushbuttons to review all system

parameters, including user-configured settings, and to

activate loopbacks.

Press

for at least 3 seconds to place the front-panel display in

scroll mode.When it has finished scrolling through all the

system parameters, the display returns to its normal mode.

To display system parameters:

To initiate a manual loopback:

MODE

Press LBK for more than

3 seconds to activate the NLOC and CREM loopbacks.

If a loopback condition already exists, this will loopdown all

existing loopbacks. Press LBK again for more than

3 seconds to reactivate the dual loopback.

Simultaneously press MODE and LBK for at least

3 seconds.The following message appears:

Press LBK to activate the NLOC loopback

or press MODE to advance to the next loopback

(NREM, CLOC, CREM, COLB or RULB).

, simultaneously

press MODE and LBK for 3 or more seconds.

To initiate a dual loopback:

MAN LPBK NLO?

To manually terminate a loopback

MODE and LBK pushbutton options