ADC H2TU-C-202 User manual

USER MANUAL
H2TU-C-202 List 2F Line Unit
Product Catalog: H2TU-C-202-L2F
CLEI: VACHZW8G

LTPH-UM-1072-03
ii October 25, 2002 H2TU-C-202 List 2F
Revision History of This Manual
To order copies of this document, use document catalog number LTPH-UM-1072-03.
Copyright
October 25, 2002
© 2002 ADC DSL Systems, Inc. All rights reserved.
Trademark Information
ADC is a registered trademark of ADC Telecommunications, Inc. HiGain is a registered trademark of ADC DSL Systems, Inc.
No right, license, or interest to such trademarks is granted hereunder, and you agree that no such right, license, or interest
shall be asserted by you with respect to such trademark. Other product names mentioned in this practice are used for
identification purposes only and may be trademarks or registered trademarks of their respective companies.
Disclaimer of Liability
Information contained in this document is company 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.
Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice.
In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits, and ADC further
disclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer of
liability applies to all products, publications and services during and after the warranty period.
Revision Release Date Revisions Made
1December 12, 2001 Initial release.
2October 25, 2002 Update specifications for loop attenuation and insertion loss.

LTPH-UM-1072-03 Using This Manual
H2TU-C-202 List 2F October 25, 2002 iii
USING THIS MANUAL
The following conventions are used in this manual:
•Monospace type indicates screen text.
•Keys you press are indicated by small icons such as or . Key combinations to be pressed
simultaneously are indicated with a plus sign as follows: + .
•Items you select are in bold.
•Three types of messages, identified by icons, appear in text.
For a list of abbreviations used in this document, refer to “Appendix E - Abbreviations” on page 69.
INSPECTING SHIPMENT
Upon receipt of the equipment:
•Unpack each container and inspect the contents for signs of damage. If the equipment has been damaged in
transit, immediately report the extent of damage to the transportation company and to ADC. Order
replacement equipment, if necessary.
•Check the packing list to ensure complete and accurate shipment of each listed item. If the shipment is short
or irregular, contact ADC as described in “Appendix D - Product Support” on page 68. If you must store the
equipment for a prolonged period, store the equipment in its original container.
Notes contain information about special circumstances.
Cautions indicate the possibility of personal injury or equipment damage.
The Electrostatic Discharge (ESD) symbol indicates that a device or assembly is susceptible to
damage from electrostatic discharge.
YENTER
CTRL ESC

Inspecting Shipment LTPH-UM-1072-03
iv October 25, 2002 H2TU-C-202 List 2F

LTPH-UM-1072-03 Table of Contents
H2TU-C-202 List 2F October 25, 2002 v
TABLE OF CONTENTS
Overview ____________________________________________________________________________ 1
Features ..............................................................................................................................................1
Compatibility .....................................................................................................................................2
Applications .......................................................................................................................................2
Front Panel __________________________________________________________________________ 3
Installation___________________________________________________________________________ 7
Verification ........................................................................................................................................8
Verification without an H2TU-R Remote Unit ...................................................................8
Verification with an H2TU-R Remote Unit ........................................................................8
Provisioning__________________________________________________________________________ 9
Reviewing System Settings................................................................................................................9
Accessing the Provisioning Screens .................................................................................................9
Connecting to a Maintenance Terminal...............................................................................9
Logon Screen.....................................................................................................................10
Provisioning Tasks...........................................................................................................................12
Setting Date and Time .......................................................................................................12
Setting Circuit ID Numbers...............................................................................................13
Configuring the System.....................................................................................................14
Resetting to Factory Defaults ............................................................................................24
Clearing the History, Alarm, and Event Log Screens .......................................................25
Monitoring System Activity and Performance ____________________________________________ 26
Performance Monitoring From the H2TU-R ...................................................................................26
Payload Retrieval of Margin and Loop Attenuation Parameters .....................................................27
Using the Monitor Screen to View System Activity........................................................................28
Using the Performance Screens to View Performance Data............................................................30
Performance History at the DS1 Interface.........................................................................30
Blockage Indicator Statistics at the H2TU-R DS1 Interface.............................................34
Performance History at the HDSL2 Interface ...................................................................35
Blockage Indicator Statistics at the H2TU-R HDSL2 Interface........................................38
Using the Performance Screens to View Alarm Data......................................................................39
Alarm History at the DS1 Interface...................................................................................39
Alarm History at the HDSL2 Interface..............................................................................41
Using the System Event Log to Track Events .................................................................................42
Origin Tags........................................................................................................................43
Event Log Messages..........................................................................................................44
Using the Sectionalized Event Log to Isolate Trouble ....................................................................45

Table of Contents LTPH-UM-1072-03
vi October 25, 2002 H2TU-C-202 List 2F
Using the Report Menu ................................................................................................................... 47
Testing _____________________________________________________________________________ 49
System Alarms................................................................................................................................. 49
Alarm Option for Digital Loop Carrier Feed .................................................................... 50
Retiring System Alarms.................................................................................................... 50
Remote LOS and AIS Response ....................................................................................... 51
OCT55 Test Pattern with AMI Code............................................................................................... 51
Loopback Operation ........................................................................................................................ 52
Generic Loopback Commands ........................................................................................................ 53
Special Loopback Commands ......................................................................................................... 54
Manual Loopback Session............................................................................................................... 55
Setting the Loopback Time-Out Option............................................................................ 55
Activating Manual Loopback Mode ................................................................................. 55
Loopback Test Procedures .............................................................................................................. 56
General Troubleshooting Tips .......................................................................................... 56
GNLB Test Procedures ..................................................................................................... 56
A1LB, A2LB, and A5LB Test Procedures ....................................................................... 58
A3LB and A4LB Test Procedures .................................................................................... 60
Testing with the H2TU-R Signal Generator.................................................................................... 61
Appendix A - Specifications____________________________________________________________ 62
Power Consumption ........................................................................................................................ 63
Maximum Power Dissipation.......................................................................................................... 63
Maximum Current Drain................................................................................................................. 63
Loop Attenuation and Insertion Loss .............................................................................................. 64
H2TU-C-202 Card-Edge Connector................................................................................................ 64
Network Management Control Bus .................................................................................. 65
Fuse Alarm........................................................................................................................ 65
System Alarm Output Pins................................................................................................ 65
Craft Port ......................................................................................................................................... 65
Appendix B - Functional Operation _____________________________________________________ 66
Timing ............................................................................................................................................. 66
Ground Fault Detect ........................................................................................................................ 66
Appendix C - Compatibility____________________________________________________________ 67
Compatible Shelves and Enclosures................................................................................................ 67
Appendix D - Product Support _________________________________________________________ 68
Appendix E - Abbreviations____________________________________________________________ 69
Certification and Warranty ______________________________________________ Inside Back Cover

LTPH-UM-1072-03 List of Figures
H2TU-C-202 List 2F October 25, 2002 vii
LIST OF FIGURES
1. H2TU-C-202 List 2F Front Panel.....................................................................................................................3
2. Installing the H2TU-C-202 Into a Shelf...........................................................................................................7
3. Logon Screen..................................................................................................................................................11
4. Config Menu - Date and Time........................................................................................................................12
5. Inventory Screen.............................................................................................................................................13
6. Config Menu...................................................................................................................................................14
7. Config Menu - Standard Options (defaults shown)........................................................................................15
8. Config Menu - ADC Options (defaults shown) .............................................................................................15
9. Config Menu - Set Factory Defaults ..............................................................................................................24
10.Config Menu - Master Clear...........................................................................................................................25
11.Sectionalized Analysis of the DS1 Interface..................................................................................................26
12.Monitor Screen - Active Loopback with Alarms ...........................................................................................28
13.H2TU-R DS1 31-Day Performance History ..................................................................................................31
14.H2TU-C DS1 48-Hour Performance History.................................................................................................31
15.H2TU-R DS1 25-Hour Performance History.................................................................................................32
16.H2TU-R DS1 Current Statistics .....................................................................................................................32
17.H2TU-C DS1 Current Statistics .....................................................................................................................33
18. H2TU-R DS1 Blockage Indicator History Screen (DS1 Interface) ...............................................................34
19.H2TU-C HDSL2 31-Day Performance History.............................................................................................35
20.H2TU-C HDSL2 48-Hour Performance History ...........................................................................................35
21.H2TU-C HDSL2 25-Hour Performance History ...........................................................................................36
22.H2TU-C HDSL2 Current Statistics................................................................................................................36
23.H2TU-R Blockage Indicator History Screen (HDSL2 Interface) ..................................................................38
24.H2TU-C DS1 Alarm History Screen..............................................................................................................39
25.H2TU-R DS1 Alarm History Screen..............................................................................................................40
26.H2TU-C HDSL2 Alarm History Screen ........................................................................................................41
27.System Event Log Screen...............................................................................................................................42
28.Sectionalized Event Log Screen.....................................................................................................................45
29. Sectionalized Events.......................................................................................................................................46
30.Report Menu - Full Report .............................................................................................................................47
31. H2TU-R LOS and AIS Response Priorities...................................................................................................51
32. Loopback Summary........................................................................................................................................52
33. Loopback Modes ............................................................................................................................................57
34. H2TU-R Signal Generator Screen..................................................................................................................61
35. H2TU-C-202 List 2F Card-Edge Connector ..................................................................................................64
36.RS-232 Craft Port Pinouts..............................................................................................................................65
37.H2TU-C-202 List 2F Block Diagram.............................................................................................................66

List of Tables LTPH-UM-1072-03
viii October 25, 2002 H2TU-C-202 List 2F
LIST OF TABLES
1. Front-Panel Description................................................................................................................................... 4
2. Front-Panel Display Messages......................................................................................................................... 5
3. Navigational Keys for the Maintenance Terminal Screens ........................................................................... 10
4. Logon Screen Menus .................................................................................................................................... 11
5. H2TU-C-202 Standard Config Menu Options............................................................................................... 16
6. H2TU-C-202 ADC Config Menu Options .................................................................................................... 17
7. DS1/DSX-1 24-Hour PM Threshold ............................................................................................................. 20
8. Response to H2TU-R DS1 Frame Conversion Options ................................................................................ 22
9. Extended SuperFrame Format ....................................................................................................................... 22
10. SuperFrame Format ....................................................................................................................................... 23
11.Bit Error Indication of Margin and Loop Attenuation Parameters................................................................ 28
12. Monitor Screen Descriptions ......................................................................................................................... 29
13.Error Acronyms Used on the DS1 Performance History Screens ................................................................. 33
14.Error Acronyms Used on the HDSL2 Performance History Screens............................................................ 37
15. DS1 Alarm Descriptions................................................................................................................................ 40
16. HDSL2 Alarm Descriptions........................................................................................................................... 41
17. Origin Tags .................................................................................................................................................... 43
18.Event Log Messages ...................................................................................................................................... 44
19. Sectionalized Event Definitions..................................................................................................................... 46
20. Report Types.................................................................................................................................................. 48
21. Front-Panel System Alarms Summary ......................................................................................................... 49
22.Summary of HiGain HDSL2 Loopback Codes and Activation Methods...................................................... 53
23. Addressable Repeater Loopback Commands (A1LB, A2LB, A5LB)........................................................... 58
24.Addressable Repeater Loopback Commands (A3LB and A4LB)................................................................. 60
25. Signal Generator Option Settings .................................................................................................................. 61
26. H2TU-C Power Parameters ........................................................................................................................... 63
27.HDSL2 Reach Chart ...................................................................................................................................... 64

LTPH-UM-1072-03 Overview
H2TU-C-202 List 2F October 25, 2002 1
OVERVIEW
The H2TU-C-202 List 2F line unit is the Central Office (CO) side of a T1 transmission system. The HiGain™
HDSL2 product family is fully compliant with the HDSL2 standard ANSI T1.418-2000. Providing full rate T1
access using just a single copper pair, HDSL2 is a cost-effective solution that offers an open architecture. The open
architecture inherent in HDSL2 guarantees interoperability allowing simple and economic accommodation of
network growth.
HiGain HDSL2 products provide 1.544 Mbps transmission on one unconditioned copper pair over the full Carrier
Service Area (CSA) range. The CSA includes loops up to 12,000 feet of 24 AWG wire or 9,000 feet of 26 AWG
wire, including bridged taps.
FEATURES
Enhanced features include:
•Report menu option for downloading status and performance monitoring data to a file
•Dual front-panel loopback commands
•Additional Loopback Timeout (LBTO) settings of 8 hours and 24 hours
•16-bit inband retrieval of margin and loop attenuation
Standard features include:
•HDSL2 transmission features
–Lightning and power cross-protection on HDSL2 interfaces
–Full-duplex HDSL2 transmission on one pair at 1.552 Mbps
–Ultra-low wander (for Stratum 1 transport)
–Grounded loop detection on High-bit-rate Digital Subscriber Line 2 (HDSL2)
•Front-panel features
–Four-character status display
–DS1 bridging access
–Status Light Emitting Diode (LED)
–RS-232 craft port for connection to a maintenance terminal
•Maintenance screens for inventory, provisioning, and troubleshooting
–Non-volatile DS1 and HDSL2 performance monitoring and alarm histories
–Performance Report Messaging (PRM) support for Supplemental PRM (SPRM) and Network PRM
(NPRM) at the H2TU-R
–Payload (PL) and HiGain (HG) loopback source identification
–Margin Alarm (MAL) threshold
–Remote provisioning through TL1 FDL or 11-bit payload commands
•Configuration options
–Selectable DSX-1 pre-equalizer
–Bipolar Violation Transparency (BPVT) option
–Bit Error Rate (BER) alarm

Overview LTPH-UM-1072-03
2 October 25, 2002 H2TU-C-202 List 2F
–Power Back Off Network (PBON) and Power Back Off Customer (PBOC) options for configuring
HDSL2 transmit power levels
–Loss of Signal/Alarm Indication Signal (LOS/AIS) payload alarm
–Selectable loopback activation codes
•Network Management and Administration (NMA) interface
COMPATIBILITY
The H2TU-C-202 List 2F is designed to mount in 200 and 400 mechanics, high-density shelves. For a list of
compatible shelves, see “Appendix C - Compatibility” on page 67.
APPLICATIONS
HiGain HDSL2 systems provide a cost-effective, easy-to-deploy method for delivering T1 High Capacity Digital
Service (HCDS) over a single copper pair. HiGain HDSL2 systems support a multitude of network connections
and system models.
•The service is deployed over one unconditioned, non-loaded copper pair.
•Conventional inline DS1 repeaters are no longer required.
•Cable pair conditioning, pair separation, and bridged tap removal are not required.
Each loop should have no more than 35 dB of insertion loss at 196 kHz, with driving and terminating impedances
of 135Ω. In general, HiGain HDSL2 systems:
•Operate effectively in the same cable binder group with other HDSL2 lines, HDSL, DS1, ADSL, SDSL,
POTS, Digital Data Service (DDS), and other transmission schemes.
•Can be used with customers requiring DS1 service on a temporary or permanent basis.
•Provide a means of quickly deploying service in advance of fiber-optic transmission systems.
DS1 is used throughout this document to refer to either the remote unit’s DS1 interface or the
line unit’s DSX-1 interface.

LTPH-UM-1072-03 Front Panel
H2TU-C-202 List 2F October 25, 2002 3
FRONT PANEL
Figure 1 shows the H2TU-C-202 List 2F front panel. Table 1 on page 4 describes the front-panel components. For
pinout diagram of the H2TU-C card-edge connector, see Figure 35 on page 64. For a pinout diagram of the craft
port, see Figure 36 on page 65.
Figure 1. H2TU-C-202 List 2F Front Panel
List number
Front-panel display
MODE pushbutton LBK pushbutton
Status LED
DSX-1 test access jack
s
Craft port
XMT
D
S
X
1
BRG
RCV
H
2
T
U
*
C
2
0
2
H
D
S
L
2
M
O
D
E
STATUS
L
B
K
RS-232
DCE
CLEI and ECI bar code label
(on outside of card handle)
L2F
HiGain
HDSL2
Extraction handle

Front Panel LTPH-UM-1072-03
4 October 25, 2002 H2TU-C-202 List 2F
Table 1. Front-Panel Description
Front-Panel Feature Function
List number Identifies the list number of the H2TU-C.
Front-panel display Displays four-character status, provisioning, and alarm system messages.
The front-panel display illuminates when power is initially applied. To conserve power, the display
only remains on for 5 minutes. Using the MODE or LBK pushbuttons reactivates the display and
restarts the 5-minute timer. Refer to Table 2 on page 5 for a listing of the four-character messages.
MODE and LBKpushbuttons Permits user options, system parameters, and line unit identity to be reviewed without the need for
a maintenance terminal.
A maintenance terminal is required to access provisioning screens and make configuration
changes. The MODE and LBK pushbuttons can initiate all loopbacks. (See “Manual Loopback
Session” on page 55).
Status LED The status LED can report the following conditions:
Off Line power is off.
Green Normal operation.
Red Fuse alarm.
Flashing red HDSL2 acquisition or system alarm.
Yellow An H2TU-C Customer Remote Loopback (CREM) or a Network Local Loopback (NLOC) is in
effect.
Flashing yellow H2TU-C is in an Armed (ARM) state.
DSX-1 access jacks (BRG) Provides non-intrusive bridging jack access to (XMT) and from (RCV) the HDSL2 span at the
DSX-1 interface. Allows the two DS1 payloads to be monitored.
Craft port (RS-232) Provides bidirectional communication between the unit and an external terminal to allow
configuration and performance monitoring through the maintenance terminal screens.
CLEI and ECI bar code label Provides the human-readable Common Language Equipment Identifier (CLEI) code number and
the Equipment Catalog Item (ECI) bar code number.
Extraction handle Handle used to remove the H2TU-C from the enclosure.

LTPH-UM-1072-03 Front Panel
H2TU-C-202 List 2F October 25, 2002 5
Table 2 lists the front-panel display messages. The four-character display reports the code of an alarm, loopback,
or diagnostic message and, in some cases, is followed by a four-character message that modifies the first message
with a value or current configuration setting.
Table 2. Front-Panel Display Messages
Message Full Name Description
SYSTEM ALARM MESSAGES
ACO Alarm Cutoff A system alarm has occurred and has been retired to an ACO condition by
pressing the LBK pushbutton on the H2TU-C front panel.
ALRM Alarm Condition Exists A system alarm condition is in effect.
DBER DS1 Bit Error Rate A system DS1 BER alarm is in effect and remains in effect until cleared.
HBER HDSL2 Block Error Rate A system HDSL2 Block Error Rate alarm is in effect.
LA Loop Attenuation Indicates that the attenuation on the HDSL2 loop has exceeded the
maximum threshold value.
LAIS Line Alarm Indication Signal Indicates an AIS (unframed all ones) pattern is being received or
transmitted at the H2TU-C DS1 input or output ports.
LLOS Line (Unit) Loss of Signal Indicates that no signal is detected at the DSX-1 input to the H2TU-C.
Causes a system alarm.
LOSW Loss of Sync Word Indicates that the HDSL2 loop has lost synchronization.
MAL Margin Alarm The margin on HDSL2 loop has dropped below the threshold
(0 to 15 dB) as set by the operator.
PWR FEED GND Power Feed Ground The HDSL2 loop is grounded.
PWR FEED OPEN Power Feed Open Indicates a line power open condition.
PWR FEED SHRT Power Feed Short Indicates a short between the Tip and Ring of the HDSL2 pair.
PRMF Performance Report Messaging -
Far End H2TU-R PRM-FE BER threshold has been exceeded.
PRMN Performance Report Messaging -
Near End H2TU-R PRM-NE BER threshold has been exceeded.
RAIS Remote Alarm Indication Signal Indicates an AIS (unframed all ones) pattern is being received or
transmitted at the H2TU-R DS1 input or output ports.
RLOS Remote (Unit) Loss of Signal Indicates that no signal is detected at the DS1 input to the H2TU-R.
Causes a system alarm.
RRAI Remote RAI—Remote Alarm
Indication at the H2TU-R (Net
signal has errors.)
Indicates an RAI alarm (yellow) from the CPE with errors from the line unit
or network.
TRCI Transmit RAI-CI—Remote Alarm
Indication at the H2TU-R (Net
signal does not have errors.)
Upon reception of an RAI alarm (yellow) from the CPE, the H2TU-R sends
RAI-CI towards the network if the network signal received at the H2TU-R
is clear. If the network signal is impaired (LOS, AIS or Loss of Frame
[LOF]), then the RAI is passed on to the network unaltered.
TUC Transmission Unit Central Office Accompanies the DBER, HBER, MAL, and LA alarm and indicates that the
alarm has occurred at the H2TU-C central office unit.
TUR Transmission Unit Remote End Accompanies the DBER, HBER, MAL, and LA alarm and indicates that the
alarm has occurred at the H2TU-R remote unit.
LOOPBACK MESSAGES
CLOC Customer Local Loopback DS1 signal from customer is looped back to the customer at the H2TU-R.
COLB Central Office Loopback Dual loopback at the H2TU-C.
CREM Customer Remote Loopback DS1 signal from customer is looped back to the customer at the H2TU-C.
NLOC Network Local Loopback DSX-1 signal is looped back to the network at the H2TU-C.
NREM Network Remote Loopback DSX-1 signal is looped back to the network at the H2TU-R.
RULB Remote Unit Loopback Dual loopback at the H2TU-R.
SMJK Remote SmartJack Loopback DSX-1 signal is looped back to the network at the H2TU-R SmartJack module.
Continued

Front Panel LTPH-UM-1072-03
6 October 25, 2002 H2TU-C-202 List 2F
DIAGNOSTIC MESSAGES
A = xx Maximum Loop Attenuation The Attenuation (A) message appears followed by xx, where xx is the
highest loop attenuation measured in dB.
ACQ Acquisition The multiplexers of the H2TU-C and H2TU-R are trying to establish
synchronization over the HDSL2 loop.
ARM HiGain System Armed Armed to respond to Intelligent Repeater Loop (ILR) codes.
BAD RT? No Response from H2TU-R The H2TU-C does not receive any response from the H2TU-R and all
HDSL2 loop conditions are normal. Therefore, the integrity of the H2TU-R
or the HDSL2 loop is questionable.
FERR Framing Bit Error Occurred Framing bit error occurred at H2TU-C DSX-1 input.
HES HDSL2 CRC Error H2TU-C HDSL2 Loop Cyclical Redundancy Check (CRC) error.
LBPV Local Bipolar Violation A bipolar violation has been received at the DSX-1 input to the H2TU-C.
M=xx HDSL2 Loop Margin Indicates the power of the received HDSL2 signal relative to noise (S/N
with respect to 21.5 dB). Any value of 6 dB or greater is adequate for
reliable system operation.
MNGD Managed The H2TU-C is under control of the HMU-319 network management unit.
In this state, the front-panel craft port and pushbuttons are disabled.
PWR FEED OFF Power Feed Off HDSL2 span power has been turned off by setting the PWRF option to off,
or HDSL2 span power has been turned off by use of the A1LB, A2LB, or
A5LB Intelligent Office Repeater (IOR) Power Down code.
PWR FEED ON Power Feed On Indicates that the HDSL2 loop is not grounded or shorted.
SIG Signaling The transceivers of the H2TU-C and H2TU-R are trying to establish
contact with each other over the HDSL2 loop.
SYSTEM INFORMATION MESSAGES (a)
CODE xxxx Line Code: AMI or B8ZS The line code that H2TU-C is receiving at its DSX-1 interface, if the DS1
option is set to AUTO. Otherwise, it mimics either of the other two DS1
line codes, Alternate Mark Inversion (AMI) or Bipolar with 8-Zero
Substitution (B8ZS).
FRM xxxx Frame: SF, ESF, UNFR Defines the type of frame pattern being received from the DSX-1:
SuperFrame (SF), Extended SuperFrame (ESF), or Unframed (UNFR).
LATT xx Loop Attenuation Current loop attenuation threshold setting is measured in dB.
LIST xx List Number List number of the H2TU-C-202.
MARG xx Margin Current margin threshold setting is measured in dB.
VER x.xx Software Version Number Software version number of the H2TU-C-202.
(a) System information messages are displayed in Scroll mode. To scroll through the messages, press the MODE pushbutton for
3 or more seconds.
Table 2. Front-Panel Display Messages (Continued)
Message Full Name Description

LTPH-UM-1072-03 Installation
H2TU-C-202 List 2F October 25, 2002 7
INSTALLATION
Figure 2. Installing the H2TU-C-202 Into a Shelf
1Align the H2TU-C with the enclosure slot guides and slide the unit in until it touches the backplane card-edge
connector.
2Place your thumbs on the front panel and push the H2TU-C into the card guides until properly seated.
Upon receipt of the equipment, visually inspect the contents for signs of damage. If the
equipment has been damaged in transit, immediately report the extent of damage to the
transportation company and to ADC.
When installing an H2TU-C-202 List 2F in a chassis, be sure to wear an antistatic wrist strap.
Avoid touching components on the circuit board.
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 H2TU-C-202 DSX-1 output ports to the
cross-connect panel must be grounded at both ends.
CO Shelf
H2TU-C-202

Installation LTPH-UM-1072-03
8 October 25, 2002 H2TU-C-202 List 2F
VERIFICATION
Once the H2TU-C-202 List 2F is installed, verify that it is operating properly. To do this, monitor the following:
•Status LED
•Status messages reported by the front-panel display. Table 2 on page 5 describes the messages.
Verification without an H2TU-R Remote Unit
If there is no H2TU-R remote unit installed:
1Verify that the H2TU-C powers up. The front-panel display illuminates and reports status messages. (See
Table 2 on page 5 for a list of messages.)
2Verify that the H2TU-C attempts to communicate with a remote unit (status LED flashes red). Even if a
remote unit is not present, the following events should occur:
•The front-panel display reports various four-character status messages.
•The H2TU-C again attempts communication until a remote unit is detected.
Verification with an H2TU-R Remote Unit
If an H2TU-R remote unit has been installed:
1Verify that the H2TU-C powers up. (The front-panel display illuminates and reports various status messages.)
2Verify that the H2TU-C attempts to communicate with the remote unit (status LED flashes red). One of the
following occurs:
•If the remote unit is successfully identified and the HDSL2 loop synchronizes, the H2TU-C status LED
lights a steady green. The H2TU-C reports normal margin messages on the front-panel display.
•If the remote unit is not identified, the H2TU-C reports four-character status messages. The H2TU-C
attempts communication again and reports four-character status messages. The H2TU-C repeats this
cycle until a remote unit is detected.
3Verify that a valid DS1 signal has been applied to the H2TU-C and the H2TU-R.
•If no DS1 signal is being applied to either the H2TU-C or the H2TU-R inputs, then the appropriate DS1
alarms (LLOS or RLOS) display on the front panel and the status LED flashes red.
•If a valid DS1 signal is being supplied to the H2TU-C and H2TU-R, then DS1 alarm indications should
be absent and the status LED should be a steady green.
For information regarding turnup instruction, see the Help menu and select Turn-up Aid.

LTPH-UM-1072-03 Provisioning
H2TU-C-202 List 2F October 25, 2002 9
PROVISIONING
To provision the H2TU-C, access the provisioning screens through a maintenance terminal.
REVIEWING SYSTEM SETTINGS
To scroll through the current settings of all system parameters, press the MODE pushbutton for 3 or more seconds.
The H2TU-C-202 displays the following parameters:
•Software version number
•List number
•Type of frame pattern received from the DSX-1
•Line code of the signal received from the DSX-1
•All user-configured parameter settings
•Loop attenuation threshold setting
•Margin alarm threshold setting
ACCESSING THE PROVISIONING SCREENS
Connecting to a Maintenance Terminal
The craft port on the front panel allows you to connect the H2TU-C to a maintenance terminal, such as an ASCII
terminal or PC running a terminal emulation program. Once connected to a maintenance terminal, you can access
the maintenance, provisioning, and performance screens.
To connect to a maintenance terminal:
1Connect a standard 9-pin terminal cable to the RS-232 craft port, as shown in Figure 1 on page 3, on the
H2TU-C front panel.
2Connect the other end of the cable to the serial port on the maintenance terminal.
3Start a terminal emulation program such as Procomm (emulating a VT100 terminal).
4Configure the maintenance terminal to the following communication settings:
•9600 baud
•No parity
•8 data bits
•1 stop bit
•Hardware flow control to OFF
5If necessary, press + to refresh the logon screen.
CTRL R

Provisioning LTPH-UM-1072-03
10 October 25, 2002 H2TU-C-202 List 2F
Logon Screen
The maintenance terminal screens allow you to monitor, provision, and troubleshoot an HDSL2 system.
To select a menu from the logon screen shown in Figure 3 on page 11, do one of the following:
•Press the underlined letter of the menu.
•Use the arrow keys to select the menu, then press .
Table 3 below summarizes the navigational keys. They are also listed in the onscreen Help menu. Table 4 on
page 11 describes the logon screen menus.
Table 3. Navigational Keys for the Maintenance Terminal Screens
Key(a)
(a) Legacy management units require use of control keys instead of arrow keys.
Function
Cycle through selections.
Activate the current setting or choice, or display a menu.
or (VT100 only) Return to the parent menu.
or + Select the submenu or item above the current one, or return to the previous menu.
or + Select the submenu or item below the current one.
or + Select the menu or item to the right of the current one.
or + Select the menu or item to the left of the current one, or return to the previous menu.
+ Refresh the screen.
Most VT100 emulation programs support a print screen option. For Windows-based programs,
such as Procomm or HyperTerminal, see the Help menu for instructions.
← → ENTER
SPACEBAR
ENTER
ESC F11
↑CTRL E
↓CTRL X
→CTRL D
←CTRL S
CTRL R

LTPH-UM-1072-03 Provisioning
H2TU-C-202 List 2F October 25, 2002 11
Figure 3. Logon Screen
Table 4. Logon Screen Menus
Press this key: To access this menu: Menu Functions
Monitor Monitors loopbacks and alarms, provides a graphical representation of circuit activity,
including ES, UAS, SES, and line code.
Performance Provides performance and alarm histories for current, 25-hour, 48-hour, or 31-day
periods for either the DS1 or HDSL2 interface. Selecting this menu after a remote logon
will permit viewing of the H2TU-R Blockage Indicator (BI) History screen, as displayed
from the DS1 interface. See Figure 11 on page 26 and Figure 18 on page 34.
Event Log Identifies the 100 most recent system events and reports the date and time of occurrence.
Selecting this menu after a remote logon displays the Sectionalized Event Log for the
H2TU-R. See Figure 28 on page 45.
Config Provides standard configuration options, ADC options, date and time setting, and a reset
option (factory settings). Also provides a master clear option that clears all performance,
alarm, and event log entries.
Inventory Provides product information about the various devices that are in the system and lists
circuit and device identifications.
Report Provides four types of reports: Full Report, Short Report, System Information Report, and
Event Report.
Rlogon/Rlogout Remote logon can be performed from the H2TU-C or H2TU-R. The screen displays
Rlogout when the H2TU-C or H2TU-R is remotely logged on to the other unit at the end
of the circuit.
Remote logon from the H2TU-C will permit viewing of the H2TU-R Blockage Indicator
History screen and Sectionalized Event Log screen,
To log off from the remote unit, press .Rlogout changes to Rlogon. The unit is now
locally logged on until is pressed again to re-initiate the remote logon.
Help Provides a glossary of terms used in the maintenance screens, a list of navigational keys,
aids for turn-up and printing, and ADC contact information.
Circuit ID Number Date and Time System Status
Menu bar
Logon Device
Monitor Performance Event Log Config Inventory Report Rlogon Help
+------------------------------------------+
| |
| ADC DSL Systems, Inc. |
| HiGain HDSL2 |
| |
| Voice: 800.638.0031 |
| Fax : [phone] |
+------------------------------------------+
ID: xxxx--xxxx--xxxx—-xxxx 05/15/2001 12:30:01 H2TU-C System: OK___
M
P
E
C
I
O
R
R
R
H

Provisioning LTPH-UM-1072-03
12 October 25, 2002 H2TU-C-202 List 2F
PROVISIONING TASKS
After the H2TU-C-202 is successfully installed, perform these basic provisioning tasks:
•Set date and time (see “Setting Date and Time” below).
•Set circuit ID numbers (see “Setting Circuit ID Numbers” on page 13).
•Make any configuration changes (see “Configuring the System” on page 14).
•Clear history, alarm, and event log screens to remove miscellaneous data during startup (see “Clearing the
History, Alarm, and Event Log Screens” on page 25).
Setting Date and Time
Figure 4. Config Menu - Date and Time
1Press to select the Config menu.
2Use the and arrow keys to select Date and Time, then press .
3Type the date in the format indicated, then press .
4Type the time in the format indicated (entering seconds is optional), then press .
M
onitor Performance Event Log Config Inventory Report Rlogon Help
+----------------------+
| Standard Options -> |
| ADC Options -> |
| Date and Time -> |
+-------------------------------+
| Date (mm/dd/yyyy): 05/15/2001|
| Time (hh:mm[:ss]): 12:30:01 |
+-------------------------------+
ID: xxxx--xxxx—-xxxx--xxxx 05/15/2001 12:30:01 H2TU-C System: OK___
C
↑ ↓ ENTER
ENTER
ENTER