ADC H2TU-C-388 HiGain Original operating instructions

HiGain
HiGain
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. HiGain is a registered trademark of
ADC DSL Systems, 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.
Copyright Information
© 2002 ADC DSL Systems, Inc. All rights reserved. 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.
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: [phone]
Fax: [phone]
Technical Assistance
Tel: [phone]
Tel: [phone]
Fax: [phone]
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
THE H2TU-C-388 LIST 1
The HiGain HDSL2 product family is the industry’s first practical implementation of
High-bit-rate Digital Subscriber Line 2 (HDSL2). When an H2TU-C-388 List 1 line
unit is used in conjunction with a HiGain HDSL2 remote unit (H2TU-R), the system
provides 1.552 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
American Wire Gauge (AWG) or 9,000 feet of26 AWG wire, including bridged taps.
FEATURES
SPECIFICATIONS
•Front-panel status LED, craft port, and
four-character status display •Payload (PL) or HiGain (HG) loopback source identification
•Ultra-low wander •Bit Error Rate (BER) alarm option
•Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option •Bipolar Violation Transparency (BPVT) option
•HiGain maintenance screens for inventory,
provisioning, troubleshooting, and
performance monitoring
•Grounded loop detection
Operating Temperature -40 °F to +149 °F (-40 °C to +65 °C)
Operating Humidity 5% to 95% non-condensing
HDSL2 Span Voltage 0, -185 Vdc
Mounting Double Dual Module Plus (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 dB, 135 Ωat CO side
+16.5 dBm ±0.5 dB, 135 Ωat remote side
Maximum Loop Attenuation 35 dB at 196 KHz, 135 Ω
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 V pk-pk, pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure proper installation of the H2TU-C-388 List 1, align the H2TU-C with the
slot guides and slide the unit in until it touches the backplane card-edge connector.
Push down on the front panel to seat the unit in the card-edge connector.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four-character display illuminates and reports
status messages.
If the H2TU-C is unable to communicate with the next span device, it displays various
alarm and status messages.
If the H2TU-C is able to communicate with the next span device, the following occurs:
1The Status LED flashes red, while acquiring each device in the system, and lights
a steady green when the entire system is operating without any alarms. (The DS1
signal must be present.)
2The four-character display reports margin (SNR) readings (shouldbe ≥6 dB) and
loop attenuation (should be <35 dB @196 KHz).
3Any alarm conditions that exist after the system powers up are reported on the
display. (The H2TU-C reports alarms if no DS1 signal is applied.)
PROVISIONING
After installing the H2TU-C, perform these basic provisioning tasks by accessing the
HiGain HDSL2 logon screen. Refer to the onscreen Help menu for navigational aids.
1Connect a maintenance terminal to the craft port (see front-panel illustration
inside), then press + to refresh the logon screen, if necessary.
2Select the Config menu, Date and Time, then type the date and time.
3Select the Inventory screen, then type in the unit ID numbers.
4Change the settings of any system parameters, if necessary, by selecting the
Config menu, Standard Options or PairGain Options. (Configuration options
can also be set from the front panel using the MODE and SEL buttons. See the
“Front-Panel Configuration Options Using MODE and SEL”table inside.)
5Once the H2TU-C is successfully installed and provisioned, access the Monitor,
Performance or Event Log menu to clear the Performance, Alarm History, or
Event Log screens, or select Master Clear in the Config menu.
Continued
CTRL R
Þ
MODE SEL
SETUP
STATUS
RS
DCE
232
L
HiGain
HDSL2
H
2
T
U
•
C
3
8
8H2TU-C-388 LIST 1
LINE UNIT
QUICK INSTALLATION
´,09¶72¨
1216257
July 14, 2000
Product Catalog: H2TU-C-388-L1
CLEI: VACHKW0C
Document: 352-388-100-04, Revision 4

HiGain
HiGain
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. HiGain is a registered trademark of
ADC DSL Systems, 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.
Copyright Information
© 2002 ADC DSL Systems, Inc. All rights reserved. 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.
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: [phone]
Fax: [phone]
Technical Assistance
Tel: [phone]
Tel: [phone]
Fax: [phone]
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
THE H2TU-C-388 LIST 1
The HiGain HDSL2 product family is the industry’s first practical implementation of
High-bit-rate Digital Subscriber Line 2 (HDSL2). When an H2TU-C-388 List 1 line
unit is used in conjunction with a HiGain HDSL2 remote unit (H2TU-R), the system
provides 1.552 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
American Wire Gauge (AWG) or 9,000 feet of26 AWG wire, including bridged taps.
FEATURES
SPECIFICATIONS
•Front-panel status LED, craft port, and
four-character status display •Payload (PL) or HiGain (HG) loopback source identification
•Ultra-low wander •Bit Error Rate (BER) alarm option
•Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option •Bipolar Violation Transparency (BPVT) option
•HiGain maintenance screens for inventory,
provisioning, troubleshooting, and
performance monitoring
•Grounded loop detection
Operating Temperature -40 °F to +149 °F (-40 °C to +65 °C)
Operating Humidity 5% to 95% non-condensing
HDSL2 Span Voltage 0, -185 Vdc
Mounting Double Dual Module Plus (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 dB, 135 Ωat CO side
+16.5 dBm ±0.5 dB, 135 Ωat remote side
Maximum Loop Attenuation 35 dB at 196 KHz, 135 Ω
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 V pk-pk, pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure proper installation of the H2TU-C-388 List 1, align the H2TU-C with the
slot guides and slide the unit in until it touches the backplane card-edge connector.
Push down on the front panel to seat the unit in the card-edge connector.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four-character display illuminates and reports
status messages.
If the H2TU-C is unable to communicate with the next span device, it displays various
alarm and status messages.
If the H2TU-C is able to communicate with the next span device, the following occurs:
1The Status LED flashes red, while acquiring each device in the system, and lights
a steady green when the entire system is operating without any alarms. (The DS1
signal must be present.)
2The four-character display reports margin (SNR) readings (shouldbe ≥6 dB) and
loop attenuation (should be <35 dB @196 KHz).
3Any alarm conditions that exist after the system powers up are reported on the
display. (The H2TU-C reports alarms if no DS1 signal is applied.)
PROVISIONING
After installing the H2TU-C, perform these basic provisioning tasks by accessing the
HiGain HDSL2 logon screen. Refer to the onscreen Help menu for navigational aids.
1Connect a maintenance terminal to the craft port (see front-panel illustration
inside), then press + to refresh the logon screen, if necessary.
2Select the Config menu, Date and Time, then type the date and time.
3Select the Inventory screen, then type in the unit ID numbers.
4Change the settings of any system parameters, if necessary, by selecting the
Config menu, Standard Options or PairGain Options. (Configuration options
can also be set from the front panel using the MODE and SEL buttons. See the
“Front-Panel Configuration Options Using MODE and SEL”table inside.)
5Once the H2TU-C is successfully installed and provisioned, access the Monitor,
Performance or Event Log menu to clear the Performance, Alarm History, or
Event Log screens, or select Master Clear in the Config menu.
Continued
CTRL R
Þ
MODE SEL
SETUP
STATUS
RS
DCE
232
L
HiGain
HDSL2
H
2
T
U
•
C
3
8
8H2TU-C-388 LIST 1
LINE UNIT
QUICK INSTALLATION
´,09¶72¨
1216257
July 14, 2000
Product Catalog: H2TU-C-388-L1
CLEI: VACHKW0C
Document: 352-388-100-04, Revision 4

HiGain
HiGain
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. HiGain is a registered trademark of
ADC DSL Systems, 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.
Copyright Information
© 2002 ADC DSL Systems, Inc. All rights reserved. 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.
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: [phone]
Fax: [phone]
Technical Assistance
Tel: [phone]
Tel: [phone]
Fax: [phone]
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
THE H2TU-C-388 LIST 1
The HiGain HDSL2 product family is the industry’s first practical implementation of
High-bit-rate Digital Subscriber Line 2 (HDSL2). When an H2TU-C-388 List 1 line
unit is used in conjunction with a HiGain HDSL2 remote unit (H2TU-R), the system
provides 1.552 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
American Wire Gauge (AWG) or 9,000 feet of26 AWG wire, including bridged taps.
FEATURES
SPECIFICATIONS
•Front-panel status LED, craft port, and
four-character status display •Payload (PL) or HiGain (HG) loopback source identification
•Ultra-low wander •Bit Error Rate (BER) alarm option
•Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option •Bipolar Violation Transparency (BPVT) option
•HiGain maintenance screens for inventory,
provisioning, troubleshooting, and
performance monitoring
•Grounded loop detection
Operating Temperature -40 °F to +149 °F (-40 °C to +65 °C)
Operating Humidity 5% to 95% non-condensing
HDSL2 Span Voltage 0, -185 Vdc
Mounting Double Dual Module Plus (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 dB, 135 Ωat CO side
+16.5 dBm ±0.5 dB, 135 Ωat remote side
Maximum Loop Attenuation 35 dB at 196 KHz, 135 Ω
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 V pk-pk, pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure proper installation of the H2TU-C-388 List 1, align the H2TU-C with the
slot guides and slide the unit in until it touches the backplane card-edge connector.
Push down on the front panel to seat the unit in the card-edge connector.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four-character display illuminates and reports
status messages.
If the H2TU-C is unable to communicate with the next span device, it displays various
alarm and status messages.
If the H2TU-C is able to communicate with the next span device, the following occurs:
1The Status LED flashes red, while acquiring each device in the system, and lights
a steady green when the entire system is operating without any alarms. (The DS1
signal must be present.)
2The four-character display reports margin (SNR) readings (shouldbe ≥6 dB) and
loop attenuation (should be <35 dB @196 KHz).
3Any alarm conditions that exist after the system powers up are reported on the
display. (The H2TU-C reports alarms if no DS1 signal is applied.)
PROVISIONING
After installing the H2TU-C, perform these basic provisioning tasks by accessing the
HiGain HDSL2 logon screen. Refer to the onscreen Help menu for navigational aids.
1Connect a maintenance terminal to the craft port (see front-panel illustration
inside), then press + to refresh the logon screen, if necessary.
2Select the Config menu, Date and Time, then type the date and time.
3Select the Inventory screen, then type in the unit ID numbers.
4Change the settings of any system parameters, if necessary, by selecting the
Config menu, Standard Options or PairGain Options. (Configuration options
can also be set from the front panel using the MODE and SEL buttons. See the
“Front-Panel Configuration Options Using MODE and SEL”table inside.)
5Once the H2TU-C is successfully installed and provisioned, access the Monitor,
Performance or Event Log menu to clear the Performance, Alarm History, or
Event Log screens, or select Master Clear in the Config menu.
Continued
CTRL R
Þ
MODE SEL
SETUP
STATUS
RS
DCE
232
L
HiGain
HDSL2
H
2
T
U
•
C
3
8
8H2TU-C-388 LIST 1
LINE UNIT
QUICK INSTALLATION
´,09¶72¨
1216257
July 14, 2000
Product Catalog: H2TU-C-388-L1
CLEI: VACHKW0C
Document: 352-388-100-04, Revision 4

LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance terminal screen or use the MODE and SEL buttons. The inband codes below (except COLB, DxLB, and RULB) can also be
sent by a test set. For more detailed information about the HiGain HDSL2 screens, provisioning, and loopback testing, refer to the H2TU-C-388 List 1 user manual, catalog number 152-388-105-xx. It can be downloaded from the ADC Web site at www.adc.com.
H
2
T
U
•
C
3 8 8
106 105 104 103 102 101 100
DSX-1OUT
DSX-1IN
205
204
203
202
201
200
119 118 117 116 115 114 113 112 111 110
Ground Ground
Frameground
Fusealarm* Ring1 Tip1 Management bus Ring Tip Factoryuseonly
-48Vdc
219
218
217
216
215
214
213
212
211
210
209
208
207
206
109 108 107
* Fuse alarm is normally floating
and at -48 Vdc when activated.
List number
RS-232 Craft port
The Bantam 210 jack provides bidirectional communication between the H2TU-C and a maintenance terminal for access to maintenance, provisioning, and performance screens.Use jack adapter 120-1035-01 to connect a standard 9-pin terminal cable between the serial port on a PC and the H2TU-C craft port.
CLEI code label
HiGain
L
RS
232
DCE
STATUS
SETUP
MODE SEL
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Status LED
Configuration number
System option buttons (for manual setting of system parameters)
Use MODE and SEL to manually modify user options, initiate loopbacks, and display DSX-1 line parameters.
1 2 3 4
Press the MODE button for 1 second and release.
The front panel alternately displays the first
system parameter and its current setting. Press SEL to step through all possible settings for the displayed parameter. Press MODE to update the parameter and advance to the next parameter. After scrolling through all the parameters, press SEL to confirm changes when prompted with a CONF NO message, or press MODE to cancel all changes.
9600 baud 8 data bits No parity 1 stop bit Hardware flow control: OFF Terminal emulation software: VT100
MaintenanceTerminal Modem Settings Card-edge Connector
A Customer Remote (CREM) loopback or a Network Local (NLOC) loopback is in effect.
Green LED Normal operation. Red LED Fuse alarm. Flashing Red LED HDSL2 acquisition or system alarm. Yellow LED FlashingYellow LED System is in Armed (ARM) mode. Off Line power is off.
HDSL2
HDSL2span
Ring Tip
GNLB Loopback Commands
Loopback Inband Code Description NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C. NRG1 (a)
(a) Regenerators (doublers) will be supported by future product enhancements.
110000 DSX-1 signal is looped back to the network at H2RU1.
NRG2 (a) 111000 DSX-1 signal is looped back to the network at H2RU2. NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R. COLB(b)
(b) Dual loopbacks are only initiated from a maintenance terminal or the MODE and SEL buttons.
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.
DxLB (b) DSX-1 signal is looped back to the network at regenerator xand
signal from the customer is looped back to the customer at regenerator x, if present.
RULB (b) 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.
SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R
SmartJack module.
CREM 1111110 Signal from customer is looped back to the customer at the
H2TU-C.
CRG1 (a) 111100 Signal from customer is looped back to the customer at H2RU1. CRG2 (a) 111110 Signal from customer is looped back to the customer at H2RU2. CLOC 1111100 Signal from customer is looped back to the customer at the
H2TU-R.
Loopdown 11100 Deactivates any of the above loopbacks.
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 SEL button 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. SPNn-LOSW The HDSL2 loop has lost sync.
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 Local AIS Signal. RAIS Remote AIS Signal. LRAI An RAI condition is detected at the remote and the signal from the line unit is
error-free.
RRAI An RAI (yellow) alarm from the Customer Premises Equipment (CPE) with a failure
from the network.
xxxx-DBER A system DS1 Bit Error Rate (BER) alarm. PRMF H2TU-R Performance Report Messaging BER threshold exceeded at far end. PRMN H2TU-R Performance Report Messaging BER threshold exceeded at near end. xxxx-HBER A system HDSL2 Block Error Rate (BER) alarm. xxxx-MAL The margin on the HDSL2 loop has dropped below the threshold setting. xxxx-LA The attenuation on the HDSL2 loop has exceeded the maximum threshold value.
Network Customer
Premises
H2TU-C H2RU1 H2RU2 H2TU-R
TLOS
NLOC NRG1 NRG2CREM CRG1 CRG2 CLOC
1111000 110000 111000 NREM
1110000 1111100
111100 1111101111110
11000 SMJK
Front-Panel Diagnostic Messages
Display Code Description (normal operating messages in bold) A=xx The loop attenuation of the longest (maximum loss) span, measured in dB.
ACQ The multiplexers of the H2TU-C-388 List 1 and H2TU-R are trying to establish
synchronization.
AnL The multiplexers of the two devices on Span n are trying to establish synchronization with
each other, where nis the number of the span.
ARM Armed to respond to Intelligent Repeater Loop (ILR) codes. BAD RT? The H2TU-C-388 List 1 is not receiving a response from the H2TU-R. FERR A framing bit error occurred at H2TU-C-388 List 1 DSX-1 input. FLDL Flash download of firmware updates. (Contact Customer Service for update procedures.) HES H2TU-C-388 List 1 HDSL2 loop cyclical redundancy check (CRC) error. LBPV A local bipolar violation has been received at the DSX-1 input to the H2TU-C-388 List 1. M=xx 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 The H2TU-C-388 List 1 is under control of the HMU-319 network management unit. PWR FEED OFF HDSL2 span power is turned off. PWR FEED ON Indicates that the HDSL2 loop is not grounded or shorted. SIG The transceivers of the H2TU-C and H2TU-R (or the H2TU-C and first regenerator) are
trying to establish contact with each other on Span 1 of the HDSL2 loop.
SnL The transceivers of the two devices on Span nare trying to establish contact with each
other, where nis the number of the span.
Front-Panel Configuration Options Using MODE and SEL (a)
(a) Front-panel configuration options display in the order listed.
Display Code Description (default values in bold) EQL Sets the DSX-1 Equalizer to: 0 (0 to 133 ft.), 133 (133 to 266 ft.), 266 (266 to 399 ft.),
399 (399 to 533 ft.), 533 (533 to 655 ft.).
RLBO Sets the H2TU-R line buildout to 0 dB, -7.5 dB, or -15 dB. LPBK Enables (ENA) or disables (DIS) SmartJack loopback commands. SPLB xxxx Configures the system for generic (GNLB) or special inband loopback commands (A1LB,
A2LB, A3LB, A4LB, A5LB).
PWRF OFF = disables HDSL2 powering. ON = HDSL2 line voltage is -185 Vdc maximum. HBER 1E-6 or 1E-7 = alarm activates when the HDSL2 BER alarm threshold exceeds 10-6 or 10-7.
NONE = prevents 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, 60, 120 minutes. DS1 DSX-1 line code = AUTO, B8ZS, AMI. FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode). RDA Enables (ENA) or disables (DIS) alarm indications due to remote DS1 LOS at the H2TU-R
input.
ALMP Enables system to output an alarm pattern: AIS or LOS. BPVT Enables (ENA) or disables (DIS) Bipolar Violation Transparency. NLBP Enables the H2TU-R to transmit either AIS or LOS towards the 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.
RTPV Enables (ENA) or disables (DIS) remote provisioning.
Front-Panel System Information Messages (Scroll Mode)(a)
(a) To scroll through system information messages, press the MODE button for 3 or more seconds.
Code Description Code Description CODE xxxx Line code setting (AMI, B8ZS). LIST xx Product list number.
FRM xxxx Frame pattern received from the
DSX-1 (SF, ESF, UNFR). MARG xx Margin threshold (0 to 15 dB).
Default is 4.
LATT xx Loop attenuation threshold
(0 to 40 dB). Default is 35. VER x.xx Firmware version.
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-388 List 1 DSX-1 output ports to the cross-connect panel must be grounded at both ends.

LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance terminal screen or use the MODE
and SEL buttons. The inband codes below (except COLB, DxLB, and RULB) can also be
sent by a test set.
For more detailed information about the HiGain HDSL2 screens, provisioning, and
loopback testing, refer to the H2TU-C-388 List 1 user manual, catalog number
152-388-105-xx. It can be downloaded from the ADC Web site at www.adc.com.
H
2
T
U
•
C
3
8
8
106
105
104
103
102
101
100
DSX-1OUT
DSX-1IN
205
204
203
202
201
200
119
118
117
116
115
114
113
112
111
110
Ground Ground
Frameground
Fusealarm*
Ring1
Tip1
Management bus
Ring
Tip
Factoryuseonly
-48Vdc
219
218
217
216
215
214
213
212
211
210
209
208
207
206
109
108
107
* Fuse alarm is normally floating
and at -48 Vdc when activated.
List number
RS-232 Craft port
The Bantam 210 jack provides bidirectional communication
between the H2TU-C and a maintenance terminal
for access to maintenance, provisioning, and
performance screens.Use jack adapter 120-1035-01
to connect a standard 9-pin terminal cable between the
serial port on a PC and the H2TU-C craft port.
CLEI code label
HiGain
L
RS
232
DCE
STATUS
SETUP
MODE SEL
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Status LED
Configuration number
System option buttons (for manual setting of
system parameters)
Use MODE and SEL to manually modify user options,
initiate loopbacks, and display DSX-1 line parameters.
1
2
3
4
Press the MODE button for 1 second and release.
The front panel alternately displays the first
system parameter and its current setting.
Press SEL to step through all possible
settings for the displayed parameter.
Press MODE to update the parameter and advance
to the next parameter.
After scrolling through all the parameters, press SEL
to confirm changes when prompted with a CONF NO
message, or press MODE to cancel all changes.
9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control: OFF
Terminal emulation software: VT100
MaintenanceTerminal Modem Settings Card-edge Connector
A Customer Remote (CREM) loopback
or a Network Local (NLOC) loopback
is in effect.
Green LED Normal operation.
Red LED Fuse alarm.
Flashing Red LED HDSL2 acquisition or system alarm.
Yellow LED
FlashingYellow LED System is in Armed (ARM) mode.
Off Line power is off.
HDSL2
HDSL2span
Ring
Tip
GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C.
NRG1 (a)
(a) Regenerators (doublers) will be supported by future product enhancements.
110000 DSX-1 signal is looped back to the network at H2RU1.
NRG2 (a) 111000 DSX-1 signal is looped back to the network at H2RU2.
NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R.
COLB(b)
(b) Dual loopbacks are only initiated from a maintenance terminal or the MODE and SEL buttons.
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.
DxLB (b) DSX-1 signal is looped back to the network at regenerator xand
signal from the customer is looped back to the customer at
regenerator x, if present.
RULB (b) 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.
SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R
SmartJack module.
CREM 1111110 Signal from customer is looped back to the customer at the
H2TU-C.
CRG1 (a) 111100 Signal from customer is looped back to the customer at H2RU1.
CRG2 (a) 111110 Signal from customer is looped back to the customer at H2RU2.
CLOC 1111100 Signal from customer is looped back to the customer at the
H2TU-R.
Loopdown 11100 Deactivates any of the above loopbacks.
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 SEL button 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.
SPNn-LOSW The HDSL2 loop has lost sync.
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 Local AIS Signal.
RAIS Remote AIS Signal.
LRAI An RAI condition is detected at the remote and the signal from the line unit is
error-free.
RRAI An RAI (yellow) alarm from the Customer Premises Equipment (CPE) with a failure
from the network.
xxxx-DBER A system DS1 Bit Error Rate (BER) alarm.
PRMF H2TU-R Performance Report Messaging BER threshold exceeded at far end.
PRMN H2TU-R Performance Report Messaging BER threshold exceeded at near end.
xxxx-HBER A system HDSL2 Block Error Rate (BER) alarm.
xxxx-MAL The margin on the HDSL2 loop has dropped below the threshold setting.
xxxx-LA The attenuation on the HDSL2 loop has exceeded the maximum threshold value.
Network Customer
Premises
H2TU-C H2RU1 H2RU2 H2TU-R
TLOS
NLOC NRG1 NRG2CREM CRG1 CRG2 CLOC
1111000 110000 111000 NREM
1110000 1111100
111100 1111101111110
11000
SMJK
Front-Panel Diagnostic Messages
Display Code Description (normal operating messages in bold)
A=xx The loop attenuation of the longest (maximum loss) span, measured in dB.
ACQ The multiplexers of the H2TU-C-388 List 1 and H2TU-R are trying to establish
synchronization.
AnL The multiplexers of the two devices on Span n are trying to establish synchronization with
each other, where nis the number of the span.
ARM Armed to respond to Intelligent Repeater Loop (ILR) codes.
BAD RT? The H2TU-C-388 List 1 is not receiving a response from the H2TU-R.
FERR A framing bit error occurred at H2TU-C-388 List 1 DSX-1 input.
FLDL Flash download of firmware updates. (Contact Customer Service for update procedures.)
HES H2TU-C-388 List 1 HDSL2 loop cyclical redundancy check (CRC) error.
LBPV A local bipolar violation has been received at the DSX-1 input to the H2TU-C-388 List 1.
M=xx 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 The H2TU-C-388 List 1 is under control of the HMU-319 network management unit.
PWR FEED OFF HDSL2 span power is turned off.
PWR FEED ON Indicates that the HDSL2 loop is not grounded or shorted.
SIG The transceivers of the H2TU-C and H2TU-R (or the H2TU-C and first regenerator) are
trying to establish contact with each other on Span 1 of the HDSL2 loop.
SnL The transceivers of the two devices on Span nare trying to establish contact with each
other, where nis the number of the span.
Front-Panel Configuration Options Using MODE and SEL (a)
(a) Front-panel configuration options display in the order listed.
Display Code Description (default values in bold)
EQL Sets the DSX-1 Equalizer to: 0 (0 to 133 ft.), 133 (133 to 266 ft.), 266 (266 to 399 ft.),
399 (399 to 533 ft.), 533 (533 to 655 ft.).
RLBO Sets the H2TU-R line buildout to 0 dB, -7.5 dB, or -15 dB.
LPBK Enables (ENA) or disables (DIS) SmartJack loopback commands.
SPLB xxxx Configures the system for generic (GNLB) or special inband loopback commands (A1LB,
A2LB, A3LB, A4LB, A5LB).
PWRF OFF = disables HDSL2 powering. ON = HDSL2 line voltage is -185 Vdc maximum.
HBER 1E-6 or 1E-7 = alarm activates when the HDSL2 BER alarm threshold exceeds 10-6 or 10-7.
NONE = prevents 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, 60, 120 minutes.
DS1 DSX-1 line code = AUTO, B8ZS, AMI.
FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode).
RDA Enables (ENA) or disables (DIS) alarm indications due to remote DS1 LOS at the H2TU-R
input.
ALMP Enables system to output an alarm pattern: AIS or LOS.
BPVT Enables (ENA) or disables (DIS) Bipolar Violation Transparency.
NLBP Enables the H2TU-R to transmit either AIS or LOS towards the 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.
RTPV Enables (ENA) or disables (DIS) remote provisioning.
Front-Panel System Information Messages (Scroll Mode)(a)
(a) To scroll through system information messages, press the MODE button for 3 or more seconds.
Code Description Code Description
CODE xxxx Line code setting (AMI, B8ZS). LIST xx Product list number.
FRM xxxx Frame pattern received from the
DSX-1 (SF, ESF, UNFR). MARG xx Margin threshold (0 to 15 dB). Default is 4.
LATT xx Loop attenuation threshold
(0 to 40 dB). Default is 35. VER x.xx Firmware version.
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-388 List 1 DSX-1 output ports
to the cross-connect panel must be grounded at both ends.

LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance terminal screen or use the MODE
and SEL buttons. The inband codes below (except COLB, DxLB, and RULB) can also be
sent by a test set.
For more detailed information about the HiGain HDSL2 screens, provisioning, and
loopback testing, refer to the H2TU-C-388 List 1 user manual, catalog number
152-388-105-xx. It can be downloaded from the ADC Web site at www.adc.com.
H
2
T
U
•
C
3
8
8
106
105
104
103
102
101
100
DSX-1OUT
DSX-1IN
205
204
203
202
201
200
119
118
117
116
115
114
113
112
111
110
Ground Ground
Frameground
Fusealarm*
Ring1
Tip1
Management bus
Ring
Tip
Factoryuseonly
-48Vdc
219
218
217
216
215
214
213
212
211
210
209
208
207
206
109
108
107
* Fuse alarm is normally floating
and at -48 Vdc when activated.
List number
RS-232 Craft port
The Bantam 210 jack provides bidirectional communication
between the H2TU-C and a maintenance terminal
for access to maintenance, provisioning, and
performance screens.Use jack adapter 120-1035-01
to connect a standard 9-pin terminal cable between the
serial port on a PC and the H2TU-C craft port.
CLEI code label
HiGain
L
RS
232
DCE
STATUS
SETUP
MODE SEL
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Status LED
Configuration number
System option buttons (for manual setting of
system parameters)
Use MODE and SEL to manually modify user options,
initiate loopbacks, and display DSX-1 line parameters.
1
2
3
4
Press the MODE button for 1 second and release.
The front panel alternately displays the first
system parameter and its current setting.
Press SEL to step through all possible
settings for the displayed parameter.
Press MODE to update the parameter and advance
to the next parameter.
After scrolling through all the parameters, press SEL
to confirm changes when prompted with a CONF NO
message, or press MODE to cancel all changes.
9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control: OFF
Terminal emulation software: VT100
MaintenanceTerminal Modem Settings Card-edge Connector
A Customer Remote (CREM) loopback
or a Network Local (NLOC) loopback
is in effect.
Green LED Normal operation.
Red LED Fuse alarm.
Flashing Red LED HDSL2 acquisition or system alarm.
Yellow LED
FlashingYellow LED System is in Armed (ARM) mode.
Off Line power is off.
HDSL2
HDSL2span
Ring
Tip
GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C.
NRG1 (a)
(a) Regenerators (doublers) will be supported by future product enhancements.
110000 DSX-1 signal is looped back to the network at H2RU1.
NRG2 (a) 111000 DSX-1 signal is looped back to the network at H2RU2.
NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R.
COLB(b)
(b) Dual loopbacks are only initiated from a maintenance terminal or the MODE and SEL buttons.
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.
DxLB (b) DSX-1 signal is looped back to the network at regenerator xand
signal from the customer is looped back to the customer at
regenerator x, if present.
RULB (b) 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.
SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R
SmartJack module.
CREM 1111110 Signal from customer is looped back to the customer at the
H2TU-C.
CRG1 (a) 111100 Signal from customer is looped back to the customer at H2RU1.
CRG2 (a) 111110 Signal from customer is looped back to the customer at H2RU2.
CLOC 1111100 Signal from customer is looped back to the customer at the
H2TU-R.
Loopdown 11100 Deactivates any of the above loopbacks.
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 SEL button 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.
SPNn-LOSW The HDSL2 loop has lost sync.
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 Local AIS Signal.
RAIS Remote AIS Signal.
LRAI An RAI condition is detected at the remote and the signal from the line unit is
error-free.
RRAI An RAI (yellow) alarm from the Customer Premises Equipment (CPE) with a failure
from the network.
xxxx-DBER A system DS1 Bit Error Rate (BER) alarm.
PRMF H2TU-R Performance Report Messaging BER threshold exceeded at far end.
PRMN H2TU-R Performance Report Messaging BER threshold exceeded at near end.
xxxx-HBER A system HDSL2 Block Error Rate (BER) alarm.
xxxx-MAL The margin on the HDSL2 loop has dropped below the threshold setting.
xxxx-LA The attenuation on the HDSL2 loop has exceeded the maximum threshold value.
Network Customer
Premises
H2TU-C H2RU1 H2RU2 H2TU-R
TLOS
NLOC NRG1 NRG2CREM CRG1 CRG2 CLOC
1111000 110000 111000 NREM
1110000 1111100
111100 1111101111110
11000
SMJK
Front-Panel Diagnostic Messages
Display Code Description (normal operating messages in bold)
A=xx The loop attenuation of the longest (maximum loss) span, measured in dB.
ACQ The multiplexers of the H2TU-C-388 List 1 and H2TU-R are trying to establish
synchronization.
AnL The multiplexers of the two devices on Span n are trying to establish synchronization with
each other, where nis the number of the span.
ARM Armed to respond to Intelligent Repeater Loop (ILR) codes.
BAD RT? The H2TU-C-388 List 1 is not receiving a response from the H2TU-R.
FERR A framing bit error occurred at H2TU-C-388 List 1 DSX-1 input.
FLDL Flash download of firmware updates. (Contact Customer Service for update procedures.)
HES H2TU-C-388 List 1 HDSL2 loop cyclical redundancy check (CRC) error.
LBPV A local bipolar violation has been received at the DSX-1 input to the H2TU-C-388 List 1.
M=xx 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 The H2TU-C-388 List 1 is under control of the HMU-319 network management unit.
PWR FEED OFF HDSL2 span power is turned off.
PWR FEED ON Indicates that the HDSL2 loop is not grounded or shorted.
SIG The transceivers of the H2TU-C and H2TU-R (or the H2TU-C and first regenerator) are
trying to establish contact with each other on Span 1 of the HDSL2 loop.
SnL The transceivers of the two devices on Span nare trying to establish contact with each
other, where nis the number of the span.
Front-Panel Configuration Options Using MODE and SEL (a)
(a) Front-panel configuration options display in the order listed.
Display Code Description (default values in bold)
EQL Sets the DSX-1 Equalizer to: 0 (0 to 133 ft.), 133 (133 to 266 ft.), 266 (266 to 399 ft.),
399 (399 to 533 ft.), 533 (533 to 655 ft.).
RLBO Sets the H2TU-R line buildout to 0 dB, -7.5 dB, or -15 dB.
LPBK Enables (ENA) or disables (DIS) SmartJack loopback commands.
SPLB xxxx Configures the system for generic (GNLB) or special inband loopback commands (A1LB,
A2LB, A3LB, A4LB, A5LB).
PWRF OFF = disables HDSL2 powering. ON = HDSL2 line voltage is -185 Vdc maximum.
HBER 1E-6 or 1E-7 = alarm activates when the HDSL2 BER alarm threshold exceeds 10-6 or 10-7.
NONE = prevents 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, 60, 120 minutes.
DS1 DSX-1 line code = AUTO, B8ZS, AMI.
FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode).
RDA Enables (ENA) or disables (DIS) alarm indications due to remote DS1 LOS at the H2TU-R
input.
ALMP Enables system to output an alarm pattern: AIS or LOS.
BPVT Enables (ENA) or disables (DIS) Bipolar Violation Transparency.
NLBP Enables the H2TU-R to transmit either AIS or LOS towards the 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.
RTPV Enables (ENA) or disables (DIS) remote provisioning.
Front-Panel System Information Messages (Scroll Mode)(a)
(a) To scroll through system information messages, press the MODE button for 3 or more seconds.
Code Description Code Description
CODE xxxx Line code setting (AMI, B8ZS). LIST xx Product list number.
FRM xxxx Frame pattern received from the
DSX-1 (SF, ESF, UNFR). MARG xx Margin threshold (0 to 15 dB). Default is 4.
LATT xx Loop attenuation threshold
(0 to 40 dB). Default is 35. VER x.xx Firmware version.
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-388 List 1 DSX-1 output ports
to the cross-connect panel must be grounded at both ends.

HiGain
HiGain
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. HiGain is a registered trademark of
ADC DSL Systems, 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.
Copyright Information
© 2002 ADC DSL Systems, Inc. All rights reserved. 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.
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: [phone]
Fax: [phone]
Technical Assistance
Tel: [phone]
Tel: [phone]
Fax: [phone]
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
THE H2TU-C-388 LIST 1
The HiGain HDSL2 product family is the industry’s first practical implementation of
High-bit-rate Digital Subscriber Line 2 (HDSL2). When an H2TU-C-388 List 1 line
unit is used in conjunction with a HiGain HDSL2 remote unit (H2TU-R), the system
provides 1.552 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
American Wire Gauge (AWG) or 9,000 feet of26 AWG wire, including bridged taps.
FEATURES
SPECIFICATIONS
•Front-panel status LED, craft port, and
four-character status display •Payload (PL) or HiGain (HG) loopback source identification
•Ultra-low wander •Bit Error Rate (BER) alarm option
•Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option •Bipolar Violation Transparency (BPVT) option
•HiGain maintenance screens for inventory,
provisioning, troubleshooting, and
performance monitoring
•Grounded loop detection
Operating Temperature -40 °F to +149 °F (-40 °C to +65 °C)
Operating Humidity 5% to 95% non-condensing
HDSL2 Span Voltage 0, -185 Vdc
Mounting Double Dual Module Plus (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 dB, 135 Ωat CO side
+16.5 dBm ±0.5 dB, 135 Ωat remote side
Maximum Loop Attenuation 35 dB at 196 KHz, 135 Ω
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 V pk-pk, pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure proper installation of the H2TU-C-388 List 1, align the H2TU-C with the
slot guides and slide the unit in until it touches the backplane card-edge connector.
Push down on the front panel to seat the unit in the card-edge connector.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four-character display illuminates and reports
status messages.
If the H2TU-C is unable to communicate with the next span device, it displays various
alarm and status messages.
If the H2TU-C is able to communicate with the next span device, the following occurs:
1The Status LED flashes red, while acquiring each device in the system, and lights
a steady green when the entire system is operating without any alarms. (The DS1
signal must be present.)
2The four-character display reports margin (SNR) readings (shouldbe ≥6 dB) and
loop attenuation (should be <35 dB @196 KHz).
3Any alarm conditions that exist after the system powers up are reported on the
display. (The H2TU-C reports alarms if no DS1 signal is applied.)
PROVISIONING
After installing the H2TU-C, perform these basic provisioning tasks by accessing the
HiGain HDSL2 logon screen. Refer to the onscreen Help menu for navigational aids.
1Connect a maintenance terminal to the craft port (see front-panel illustration
inside), then press + to refresh the logon screen, if necessary.
2Select the Config menu, Date and Time, then type the date and time.
3Select the Inventory screen, then type in the unit ID numbers.
4Change the settings of any system parameters, if necessary, by selecting the
Config menu, Standard Options or PairGain Options. (Configuration options
can also be set from the front panel using the MODE and SEL buttons. See the
“Front-Panel Configuration Options Using MODE and SEL”table inside.)
5Once the H2TU-C is successfully installed and provisioned, access the Monitor,
Performance or Event Log menu to clear the Performance, Alarm History, or
Event Log screens, or select Master Clear in the Config menu.
Continued
CTRL R
Þ
MODE SEL
SETUP
STATUS
RS
DCE
232
L
HiGain
HDSL2
H
2
T
U
•
C
3
8
8H2TU-C-388 LIST 1
LINE UNIT
QUICK INSTALLATION
´,09¶72¨
1216257
July 14, 2000
Product Catalog: H2TU-C-388-L1
CLEI: VACHKW0C
Document: 352-388-100-04, Revision 4