Adc H2tu-c-388 higain Original operating instructions

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THE H2TU-C-388 LIST 7A2

The H2TU-C-388 List 7A2 (H2TU-C) line unit is the Central Office (CO) side of a T1

transmission system. TheH2TU-C,whenusedwith an H2TU-Rremoteunit, transmits

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

Area (CSA) range. The H2TU-C-388 List 7A2 is designed to mount in Double Dual

Module Plus (DDM+) high-density mechanics shelves and to provide behavior

consistent with the managed line units that are part of the LoopStar product family.

The H2TU-C-231-L7A2, H2TU-C-319-L7A2, or H2TU-C-388-L7A2 require the

H2TU-R-402L7A1 to be used as the remote unit for Remote Ground Detect.

FEATURES

SPECIFICATIONS

Front-panel features: craft port for maintenance

screen access, display panel for system status

reporting, status LED, and DSX-1 access jacks

HDSL2 transmission features:

•Full-duplex transmission on one copper pair

•Grounded loop detection on HDSL2 span

•Sources sealing current

Maintenance screens for inventory, provisioning,

performance monitoring, and troubleshooting,

including:

•Remote provisioning

•Loopshield queries via TL1/FDL capability

•Remote Frame Ground Detect (via craft screens,

4-character display, or TL1/FDL query)

•Fault sectionalization (via TL1/FDL query)

•Loop attenuation and insertion loss reporting

•Loss of Signal / Alarm Indication Signal

(LOS/AIS) payload alarm option

•Power Back Off (PBON and PBOC) for

configuring HDSL2 transmit power levels to

reduce crosstalk

•Report menu option for downloading status and

performance data

•DS1 and HDSL2 alarm histories

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 DDM+ high-density shelf

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 Extended SuperFrame (ESF), SuperFrame (SF), 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

Compatibility Works with H2TU-402-L7A1 Remotes

INSTALLATION

Raise the H2TU-C front panel. Align the H2TU-C with the shelf card-slot guides and

slide the unit in. Press down on the front panel to secure the unit in the shelf.

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, existing alarm conditions 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. 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 or selection, 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 circuit ID, H2TU-R ID, and circuit notes.

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

then Standard Options or ADC Options. (Configuration options can also be set

from the front panel using the MODE and SEL pushbuttons. See Table 3 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

HIGAIN H2TU-C-388 LIST 7A2

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

Telecommunications, 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-60950/CSA C22.2 No. 60950-00: 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.

company private to ADC Telecommunications, Inc., and shall not be modified, used, copied, reproduced or

disclosed in whole or in part without the written consent of ADC.

World Headquarters

ADC Telecommunications, inc.

PO Box 1101

Minneapolis, MN 55440-1101

For Technical Assistance

Tel: 800.366.3891 ´,x9¶2B¨

1288252

Product Catalog: H2TU-C-388-L7A2

CLEI: VACKXBPA~~

Document: LTPH-QI-1268-01

April 1, 2004

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