ADC HiGain HDSL2 User manual
Product Number: 150-2406-16
CLEI Code: VACHKW8C
H2TU-C-388 List 1F
Line Unit
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HiGain
HDSL2
STATUS
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Quick Installation Guide
HIGAIN HDSL2
HDSL2
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: 714.832.9922
Fax: 714.832.9924
Technical Assistance
800.638.0031
714.730.3222
FCC Certification
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
ADC DSL Systems, Incorporated (“ADC”) warrants this product to be free of defects and to be fully functional
for a period of sixty (60) months from the date of original shipment, given correct customer installation and
regular maintenance. ADC will repair or replace at ADC’s option any unit without cost during this 60-month
period if the unit is found to be defective for any reason other than abuse or incorrect use or installation.
Do not try to repair the unit. If it fails, replace it with another unit and return the faulty unit to ADC for repair.
Any modifications of the unit by anyone other than an authorized ADC representative voids the warranty.
If a unit needs repair, call ADC for a Return Material Authorization (RMA) number and return the defective
unit, freight prepaid, along with a brief description of the problem.
ADC continues to repair faulty modules beyond the warranty program at a nominal charge. Contact your ADC
sales representative for details and pricing.
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 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 PairGain
Technologies, 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
©Copyright 2000 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.
THE H2TU-C-388 LIST 1F
The HiGain ®product family is the industry’s first practical implementation of High
bit-rate Digital Subscriber Line 2 (HDSL2). When an H2TU-C-388 List 1F line unit
is used in conjunction with a HiGain 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 AWG or
9,000 feet of 26 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 •Bipolar Violation Transparency (BPVT) option
•Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option •Performance Report Messaging (SPRM and
NPRM)
•Grounded loop detection •Bit Error Rate (BER) alarm option
•Remote provisioning through TL1 FDL or
11-bit payload commands •Power Back Off (PBON and PBOC) for
configuring power output levels
•HiGain maintenance screens for inventory,
provisioning, troubleshooting, and
performance monitoring
•Dual loopback commands
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
HDSL2 Line Rate 1.552 Mbps Overlapped Pulse Amplitude
Modulation Transmission with Interlocking
Spectra (OPTIS)
HDSL2 Output +16.8 dBm ±0.5 dB, 135 Ω
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
Raise the H2TU-C front panel and slidethe unit into the CO shelf card slot. Lower and
push on the H2TU-C front panel to secure the unit in the shelf.
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 turns
steady green when the entire system is operating with no alarms. (The DS1 signal
must be present.)
2The four-character display reports margin (SNR) readings (should be ≥6dB)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.
1Using the furnished 210-to-DB9 cable adapter, connect a maintenance terminal
to the H2TU-C craft port. The HiGain HDSL2 logon screen will appear. Press
+ to refresh the logon screen.
2Select the Config menu, Date and Time, then type the date and time.
3Select the Inventory menu, then type in the unit ID numbers.
4Change the settings of any system parameters, if necessary, by selecting the
Config menu, Standard Options or ADC Options.
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 use Master Clear in the Config menu.
Continued
CTRL R
Þ
™352-388-116-01°¨
Document Number: 352-388-116-01
October 02, 2000
Product Number: 150-2406-16
CLEI Code: VACHKW8C
H2TU-C-388 List 1F
Line Unit
D
S
1
X
M
T
R
C
V
BRG
HiGain
HDSL2
STATUS
H
2
T
U
•
C
3
8
8
L
R
S
2
3
2
DCE
M
O
D
E
L
B
K
Quick Installation Guide
HIGAIN HDSL2
HDSL2
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: 714.832.9922
Fax: 714.832.9924
Technical Assistance
800.638.0031
714.730.3222
FCC Certification
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
ADC DSL Systems, Incorporated (“ADC”) warrants this product to be free of defects and to be fully functional
for a period of sixty (60) months from the date of original shipment, given correct customer installation and
regular maintenance. ADC will repair or replace at ADC’s option any unit without cost during this 60-month
period if the unit is found to be defective for any reason other than abuse or incorrect use or installation.
Do not try to repair the unit. If it fails, replace it with another unit and return the faulty unit to ADC for repair.
Any modifications of the unit by anyone other than an authorized ADC representative voids the warranty.
If a unit needs repair, call ADC for a Return Material Authorization (RMA) number and return the defective
unit, freight prepaid, along with a brief description of the problem.
ADC continues to repair faulty modules beyond the warranty program at a nominal charge. Contact your ADC
sales representative for details and pricing.
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 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 PairGain
Technologies, 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
©Copyright 2000 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.
THE H2TU-C-388 LIST 1F
The HiGain ®product family is the industry’s first practical implementation of High
bit-rate Digital Subscriber Line 2 (HDSL2). When an H2TU-C-388 List 1F line unit
is used in conjunction with a HiGain 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 AWG or
9,000 feet of 26 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 •Bipolar Violation Transparency (BPVT) option
•Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option •Performance Report Messaging (SPRM and
NPRM)
•Grounded loop detection •Bit Error Rate (BER) alarm option
•Remote provisioning through TL1 FDL or
11-bit payload commands •Power Back Off (PBON and PBOC) for
configuring power output levels
•HiGain maintenance screens for inventory,
provisioning, troubleshooting, and
performance monitoring
•Dual loopback commands
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
HDSL2 Line Rate 1.552 Mbps Overlapped Pulse Amplitude
Modulation Transmission with Interlocking
Spectra (OPTIS)
HDSL2 Output +16.8 dBm ±0.5 dB, 135 Ω
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
Raise the H2TU-C front panel and slidethe unit into the CO shelf card slot. Lower and
push on the H2TU-C front panel to secure the unit in the shelf.
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 turns
steady green when the entire system is operating with no alarms. (The DS1 signal
must be present.)
2The four-character display reports margin (SNR) readings (should be ≥6dB)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.
1Using the furnished 210-to-DB9 cable adapter, connect a maintenance terminal
to the H2TU-C craft port. The HiGain HDSL2 logon screen will appear. Press
+ to refresh the logon screen.
2Select the Config menu, Date and Time, then type the date and time.
3Select the Inventory menu, then type in the unit ID numbers.
4Change the settings of any system parameters, if necessary, by selecting the
Config menu, Standard Options or ADC Options.
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 use Master Clear in the Config menu.
Continued
CTRL R
Þ
™352-388-116-01°¨
Document Number: 352-388-116-01
October 02, 2000
Product Number: 150-2406-16
CLEI Code: VACHKW8C
H2TU-C-388 List 1F
Line Unit
D
S
1
X
M
T
R
C
V
BRG
HiGain
HDSL2
STATUS
H
2
T
U
•
C
3
8
8
L
R
S
2
3
2
DCE
M
O
D
E
L
B
K
Quick Installation Guide
HIGAIN HDSL2
HDSL2
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: 714.832.9922
Fax: 714.832.9924
Technical Assistance
800.638.0031
714.730.3222
FCC Certification
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
ADC DSL Systems, Incorporated (“ADC”) warrants this product to be free of defects and to be fully functional
for a period of sixty (60) months from the date of original shipment, given correct customer installation and
regular maintenance. ADC will repair or replace at ADC’s option any unit without cost during this 60-month
period if the unit is found to be defective for any reason other than abuse or incorrect use or installation.
Do not try to repair the unit. If it fails, replace it with another unit and return the faulty unit to ADC for repair.
Any modifications of the unit by anyone other than an authorized ADC representative voids the warranty.
If a unit needs repair, call ADC for a Return Material Authorization (RMA) number and return the defective
unit, freight prepaid, along with a brief description of the problem.
ADC continues to repair faulty modules beyond the warranty program at a nominal charge. Contact your ADC
sales representative for details and pricing.
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 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 PairGain
Technologies, 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
©Copyright 2000 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.
THE H2TU-C-388 LIST 1F
The HiGain ®product family is the industry’s first practical implementation of High
bit-rate Digital Subscriber Line 2 (HDSL2). When an H2TU-C-388 List 1F line unit
is used in conjunction with a HiGain 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 AWG or
9,000 feet of 26 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 •Bipolar Violation Transparency (BPVT) option
•Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option •Performance Report Messaging (SPRM and
NPRM)
•Grounded loop detection •Bit Error Rate (BER) alarm option
•Remote provisioning through TL1 FDL or
11-bit payload commands •Power Back Off (PBON and PBOC) for
configuring power output levels
•HiGain maintenance screens for inventory,
provisioning, troubleshooting, and
performance monitoring
•Dual loopback commands
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
HDSL2 Line Rate 1.552 Mbps Overlapped Pulse Amplitude
Modulation Transmission with Interlocking
Spectra (OPTIS)
HDSL2 Output +16.8 dBm ±0.5 dB, 135 Ω
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
Raise the H2TU-C front panel and slidethe unit into the CO shelf card slot. Lower and
push on the H2TU-C front panel to secure the unit in the shelf.
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 turns
steady green when the entire system is operating with no alarms. (The DS1 signal
must be present.)
2The four-character display reports margin (SNR) readings (should be ≥6dB)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.
1Using the furnished 210-to-DB9 cable adapter, connect a maintenance terminal
to the H2TU-C craft port. The HiGain HDSL2 logon screen will appear. Press
+ to refresh the logon screen.
2Select the Config menu, Date and Time, then type the date and time.
3Select the Inventory menu, then type in the unit ID numbers.
4Change the settings of any system parameters, if necessary, by selecting the
Config menu, Standard Options or ADC Options.
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 use Master Clear in the Config menu.
Continued
CTRL R
Þ
™352-388-116-01°¨
Document Number: 352-388-116-01
October 02, 2000
LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance terminal screen or use the MODE
and LBK buttons. The inband codes below can also be sent by a test set.
For more information about the HiGain HDSL2 maintenance screens, refer to the H2TU-C
technical practice, document number 152-388-116-xx.
Front Panel
Card-edge Connector
106
105
104
103
102
101
100
DSX-1RCV
DSX-1XMT
205
204
203
202
201
200
119
118
117
116
115
114
113
112
111
110
GND GND
FrameGND
Fusealarm*
Ring1
Tip1
Management bus
Ring
Tip
Factoryburn-in
-48Vdc
219
218
217
216
215
214
213
212
211
210
209
208
207
206
109
108
107
* Fuse alarm is normally floating (0 to 80 V max.) and
at -48 V (10 mA max.) when activated.
HDSL2Span
Ring
Tip
Craft port
StatusLED
List number
CLEI/ECI bar code label
(inside handle)
Extraction handle
Use to remove the
H2TU-C-388 from
its slot.
DSX-1 bridging jacks
(on PC board)
210 Bantam jack allows communication between
the H2TU-C and a maintenance terminal for access
to the unit’s provisioning and performance monitoring
screens.Use the furnished 210-to-DB9 connector
adapter to connect your 9-pin serial cable.
D
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M
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BRG
HDSL2
STATUS
H
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8
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2
3
2
DCE
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Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Provides non-intrusive bridging jack
access to and from the
HDSL2 span at the DSX-1 interface.
Allows monitoring of the T1 payloads.
(XMT) (RCV)
System option buttons
Use MODE and LBK buttons to review all system
parameters, including user-configured settings, and to
activate loopbacks.
Press the utton
for at least 3 seconds to place the front-panel display in
scroll mode.When it has finished scrolling through all the
system parameters, the display returns to its normal mode.
To display system parameters:
To initiate a manual loopback:
1
MODE b
Press the LBK button for more
than 3 seconds to activate both the NLOC and CREM loopbacks.
If a loopback condition already exists, this will loopdown all
existing loopbacks.Press the LBK button again for more than
3 seconds to reactivate the dual loopback.
Press both the MODE and LBK buttons for at least
3 seconds.The following message appears:
Press the LBK button to activate the NLOC loopback
or press the MODE button to select the next available
loopback.
, press both the
MODE and LBK buttons for 3 or more seconds
To initiate a dual loopback:
MAN LPBK NLO?
2
To manually terminate a loopback
A Customer Remote (CREM)
loopback or a Network Local
(NLOC) loopback is in effect.
Green LED Normal operation.
HDSL2 acquisition or
system alarm.
Red LED Fuse alarm.
Flashing Red LED
Yellow LED
FlashingYellow LED System is in Armed (ARM)
mode.
Off Line power is off.
MaintenanceTerminal Modem Settings
9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control:OFF
Terminal emulation software:VT100
Configuration number
HiGain
HDSL2
GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C.
NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R.
CLOC 1111100 Signal from customer is looped back to the customer at the H2TU-R.
CREM 1111110 Signal from customer is looped back to the customer at the H2TU-C.
COLB (a)
(a) Dual loopbacks are only initiated from the MODE and LBK 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.
RULB(a) DSX-1 signal is looped back to the network at the H2TU-R and signal from the
customer is looped back to the customer at the H2TU-R.
SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R SmartJack module.
Loopdown 11100 Deactivates any of the above loopbacks.
Front-Panel Alarm Messages(a)
(a) Front-panel alarm messages are listed in order of priority. ALRM displays prior to any alarm message.
Pressing the LBK 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. The span closest to the network has higher priority.
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 Alarm Indication Signal.
RAIS Remote Alarm Indication Signal.
TRCI An RAI alarm (yellow) from the CPE with an error-free signal from the line unit or
network.
RRAI An RAI alarm (yellow) from the Customer Premises Equipment (CPE) with errors
from the line unit or network.
xxx-DBER A system DS1 Bit Error Rate (BER) alarm. (xxx denotes either TUC or TUR.)
PRMF H2TU-R Performance Report Messaging BER threshold exceeded at far end.
PRMN H2TU-R Performance Report Messaging BER threshold exceeded at near end.
xxx-HBER A system HDSL2 Block Error Rate (BER) alarm. (xxx denotes either TUC or TUR.)
xxx-MAL The margin on the HDSL2 loop has dropped below the threshold setting. (xxx
denotes either TUC or TUR.)
xxx-LA The attenuation on the HDSL2 loop hasexceeded the maximum threshold value. (xxx
denotes either TUC or TUR.)
Network
Customer
Premises
H2TU-C H2TU-R
TLOS*
NLOC CREM CLOC
1111000 NREM
1110000 1111100
1111110
11000
SMJK
When enabled,TLOS is an automatic loopback
that occurs with an LOS at the remote DS1 input.
*
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 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 is not receiving a response from the H2TU-R.
DSL2 Displays HDSL2 Subscriber Line 2 (DSL2) at initial power-up.
FERR A framing bit error occurred at H2TU-C DSX-1 input.
FLDL Flash download of firmware updates. (Contact Customer Service for update procedures.)
HES H2TU-C HDSL2 loop cyclical redundancy check (CRC) error.
LBPV A local bipolar violation has been received at the DSX-1 input to the H2TU-C.
M=xx Indicates the power of the received HDSL2 signal relative to noise (S/N with respect to
21.5 dB). Any value of 6 dB or greater is adequate for reliable system operation.
MNGD The H2TU-C is under control of the 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 Read-Only Settings Using MODE(a)
(a) Front-panel codes scroll in the order listed. The configured selections follow each code.
Code Description (default values in bold)
VER x.xx Software version number x.xx.
LIST xx List number of the H2TU-C.
FRM xxx Frame (SF, ESF, UNFR).
CODE xxx Line code setting (AMI or B8ZS).
LATT xx Loop Attenuation threshold setting (38).
MARG xx Margin threshold setting(4).
EQL Sets the DSX-1 Equalizer to: 0(0 to 132 ft.), 133 (133 to 265 ft.), 266 (266 to 398 ft.),
399(399to532ft.),533(533to655ft.).
RLBO Sets the H2TU-R line buildout to DSX, 0 dB, -7.5 dB, -15 dB, or DSX.
LPBK Enables (ENA) or disables (DIS) SmartJack loopback commands.
SPLB xxx Configures 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, 8 hours, 24 hours.
DS1 DSX-1 line code = AUTO, Bipolar with 8-Zero Substitution (B8ZS), Alternate Mark Inversion (AMI).
CONV H2TU-R frame format conversion = OFF (framing determined by the DS1 FRMG option), ACON
(autodetection of framing and potential frame conversion at the H2TU-R), or FCON
(autodetection of framing and forced frame format conversion at the H2TU-R).
FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode),
RDA Enables (ENA) or disables (DIS) alarm indications due to remote DS1 LOS at H2TU-R input.
ALMP Enables system to output an alarm pattern: Alarm Indication Signal (AIS) or Loss of Signal (LOS).
BPVT Enables (ENA) or disables (DIS) Bipolar Violation Transparency (BPVT).
NLBP Enables the H2TU-R to transmit either AIS or LOS towards CI for any network loopback.
TLOS Enables (ENA) or disables (DIS) a logic loopback at the H2TU-R when an LOS occurs at its DS1 input.
PRM OFF = no enhanced Performance Report Messaging; SPRM = Supplemental PRM;
NPRM = Network PRM; AUTO = SPRM + NPRM.
NAIS If ALMP is set to AIS, this option specifies which pattern is sent to the network when a remote
LOS or AIS occurs. CI = AIS-CI sent to the network; AIS = AIS sent to the network.
ROVR Enables (ENA) or disables (DIS) conversion of an ESF DS1 payload from the network with an
embedded RAI pattern to an SF-RAI pattern towards the CI at the H2TU-R. CONV option must
be set to FCON or ACON.
RACI Enables (ENA) or disables (DIS) conversion of a DS1 RAI (yellow alarm) signal received by the
H2TU-R to be converted to an RAI-CI signal towards the network.
PBON Configures the power output levels of the H2TU-C network unit toward the customer to comply
with Default (DEF) or Enhanced (ENH) templates.
PBOC Configures the power output levels of the H2TU-C customer unit toward the network to comply
with Default (DEF) or Enhanced (ENH) templates.
LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance terminal screen or use the MODE
and LBK buttons. The inband codes below can also be sent by a test set.
For more information about the HiGain HDSL2 maintenance screens, refer to the H2TU-C
technical practice, document number 152-388-116-xx.
Front Panel
Card-edge Connector
106
105
104
103
102
101
100
DSX-1RCV
DSX-1XMT
205
204
203
202
201
200
119
118
117
116
115
114
113
112
111
110
GND GND
FrameGND
Fusealarm*
Ring1
Tip1
Management bus
Ring
Tip
Factoryburn-in
-48Vdc
219
218
217
216
215
214
213
212
211
210
209
208
207
206
109
108
107
* Fuse alarm is normally floating (0 to 80 V max.) and
at -48 V (10 mA max.) when activated.
HDSL2Span
Ring
Tip
Craft port
StatusLED
List number
CLEI/ECI bar code label
(inside handle)
Extraction handle
Use to remove the
H2TU-C-388 from
its slot.
DSX-1 bridging jacks
(on PC board)
210 Bantam jack allows communication between
the H2TU-C and a maintenance terminal for access
to the unit’s provisioning and performance monitoring
screens.Use the furnished 210-to-DB9 connector
adapter to connect your 9-pin serial cable.
D
S
1
X
M
T
R
C
V
BRG
HDSL2
STATUS
H
2
T
U
•
C
3
8
8
L
R
S
2
3
2
DCE
M
O
D
E
L
B
K
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Provides non-intrusive bridging jack
access to and from the
HDSL2 span at the DSX-1 interface.
Allows monitoring of the T1 payloads.
(XMT) (RCV)
System option buttons
Use MODE and LBK buttons to review all system
parameters, including user-configured settings, and to
activate loopbacks.
Press the utton
for at least 3 seconds to place the front-panel display in
scroll mode.When it has finished scrolling through all the
system parameters, the display returns to its normal mode.
To display system parameters:
To initiate a manual loopback:
1
MODE b
Press the LBK button for more
than 3 seconds to activate both the NLOC and CREM loopbacks.
If a loopback condition already exists, this will loopdown all
existing loopbacks.Press the LBK button again for more than
3 seconds to reactivate the dual loopback.
Press both the MODE and LBK buttons for at least
3 seconds.The following message appears:
Press the LBK button to activate the NLOC loopback
or press the MODE button to select the next available
loopback.
, press both the
MODE and LBK buttons for 3 or more seconds
To initiate a dual loopback:
MAN LPBK NLO?
2
To manually terminate a loopback
A Customer Remote (CREM)
loopback or a Network Local
(NLOC) loopback is in effect.
Green LED Normal operation.
HDSL2 acquisition or
system alarm.
Red LED Fuse alarm.
Flashing Red LED
Yellow LED
FlashingYellow LED System is in Armed (ARM)
mode.
Off Line power is off.
MaintenanceTerminal Modem Settings
9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control:OFF
Terminal emulation software:VT100
Configuration number
HiGain
HDSL2
GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C.
NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R.
CLOC 1111100 Signal from customer is looped back to the customer at the H2TU-R.
CREM 1111110 Signal from customer is looped back to the customer at the H2TU-C.
COLB (a)
(a) Dual loopbacks are only initiated from the MODE and LBK 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.
RULB(a) DSX-1 signal is looped back to the network at the H2TU-R and signal from the
customer is looped back to the customer at the H2TU-R.
SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R SmartJack module.
Loopdown 11100 Deactivates any of the above loopbacks.
Front-Panel Alarm Messages(a)
(a) Front-panel alarm messages are listed in order of priority. ALRM displays prior to any alarm message.
Pressing the LBK 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. The span closest to the network has higher priority.
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 Alarm Indication Signal.
RAIS Remote Alarm Indication Signal.
TRCI An RAI alarm (yellow) from the CPE with an error-free signal from the line unit or
network.
RRAI An RAI alarm (yellow) from the Customer Premises Equipment (CPE) with errors
from the line unit or network.
xxx-DBER A system DS1 Bit Error Rate (BER) alarm. (xxx denotes either TUC or TUR.)
PRMF H2TU-R Performance Report Messaging BER threshold exceeded at far end.
PRMN H2TU-R Performance Report Messaging BER threshold exceeded at near end.
xxx-HBER A system HDSL2 Block Error Rate (BER) alarm. (xxx denotes either TUC or TUR.)
xxx-MAL The margin on the HDSL2 loop has dropped below the threshold setting. (xxx
denotes either TUC or TUR.)
xxx-LA The attenuation on the HDSL2 loop hasexceeded the maximum threshold value. (xxx
denotes either TUC or TUR.)
Network
Customer
Premises
H2TU-C H2TU-R
TLOS*
NLOC CREM CLOC
1111000 NREM
1110000 1111100
1111110
11000
SMJK
When enabled,TLOS is an automatic loopback
that occurs with an LOS at the remote DS1 input.
*
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 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 is not receiving a response from the H2TU-R.
DSL2 Displays HDSL2 Subscriber Line 2 (DSL2) at initial power-up.
FERR A framing bit error occurred at H2TU-C DSX-1 input.
FLDL Flash download of firmware updates. (Contact Customer Service for update procedures.)
HES H2TU-C HDSL2 loop cyclical redundancy check (CRC) error.
LBPV A local bipolar violation has been received at the DSX-1 input to the H2TU-C.
M=xx Indicates the power of the received HDSL2 signal relative to noise (S/N with respect to
21.5 dB). Any value of 6 dB or greater is adequate for reliable system operation.
MNGD The H2TU-C is under control of the 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 Read-Only Settings Using MODE(a)
(a) Front-panel codes scroll in the order listed. The configured selections follow each code.
Code Description (default values in bold)
VER x.xx Software version number x.xx.
LIST xx List number of the H2TU-C.
FRM xxx Frame (SF, ESF, UNFR).
CODE xxx Line code setting (AMI or B8ZS).
LATT xx Loop Attenuation threshold setting (38).
MARG xx Margin threshold setting(4).
EQL Sets the DSX-1 Equalizer to: 0(0 to 132 ft.), 133 (133 to 265 ft.), 266 (266 to 398 ft.),
399(399to532ft.),533(533to655ft.).
RLBO Sets the H2TU-R line buildout to DSX, 0 dB, -7.5 dB, -15 dB, or DSX.
LPBK Enables (ENA) or disables (DIS) SmartJack loopback commands.
SPLB xxx Configures 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, 8 hours, 24 hours.
DS1 DSX-1 line code = AUTO, Bipolar with 8-Zero Substitution (B8ZS), Alternate Mark Inversion (AMI).
CONV H2TU-R frame format conversion = OFF (framing determined by the DS1 FRMG option), ACON
(autodetection of framing and potential frame conversion at the H2TU-R), or FCON
(autodetection of framing and forced frame format conversion at the H2TU-R).
FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode),
RDA Enables (ENA) or disables (DIS) alarm indications due to remote DS1 LOS at H2TU-R input.
ALMP Enables system to output an alarm pattern: Alarm Indication Signal (AIS) or Loss of Signal (LOS).
BPVT Enables (ENA) or disables (DIS) Bipolar Violation Transparency (BPVT).
NLBP Enables the H2TU-R to transmit either AIS or LOS towards CI for any network loopback.
TLOS Enables (ENA) or disables (DIS) a logic loopback at the H2TU-R when an LOS occurs at its DS1 input.
PRM OFF = no enhanced Performance Report Messaging; SPRM = Supplemental PRM;
NPRM = Network PRM; AUTO = SPRM + NPRM.
NAIS If ALMP is set to AIS, this option specifies which pattern is sent to the network when a remote
LOS or AIS occurs. CI = AIS-CI sent to the network; AIS = AIS sent to the network.
ROVR Enables (ENA) or disables (DIS) conversion of an ESF DS1 payload from the network with an
embedded RAI pattern to an SF-RAI pattern towards the CI at the H2TU-R. CONV option must
be set to FCON or ACON.
RACI Enables (ENA) or disables (DIS) conversion of a DS1 RAI (yellow alarm) signal received by the
H2TU-R to be converted to an RAI-CI signal towards the network.
PBON Configures the power output levels of the H2TU-C network unit toward the customer to comply
with Default (DEF) or Enhanced (ENH) templates.
PBOC Configures the power output levels of the H2TU-C customer unit toward the network to comply
with Default (DEF) or Enhanced (ENH) templates.
LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance terminal screen or use the MODE
and LBK buttons. The inband codes below can also be sent by a test set.
For more information about the HiGain HDSL2 maintenance screens, refer to the H2TU-C
technical practice, document number 152-388-116-xx.
Front Panel
Card-edge Connector
106
105
104
103
102
101
100
DSX-1RCV
DSX-1XMT
205
204
203
202
201
200
119
118
117
116
115
114
113
112
111
110
GND GND
FrameGND
Fusealarm*
Ring1
Tip1
Management bus
Ring
Tip
Factoryburn-in
-48Vdc
219
218
217
216
215
214
213
212
211
210
209
208
207
206
109
108
107
* Fuse alarm is normally floating (0 to 80 V max.) and
at -48 V (10 mA max.) when activated.
HDSL2Span
Ring
Tip
Craft port
StatusLED
List number
CLEI/ECI bar code label
(inside handle)
Extraction handle
Use to remove the
H2TU-C-388 from
its slot.
DSX-1 bridging jacks
(on PC board)
210 Bantam jack allows communication between
the H2TU-C and a maintenance terminal for access
to the unit’s provisioning and performance monitoring
screens.Use the furnished 210-to-DB9 connector
adapter to connect your 9-pin serial cable.
D
S
1
X
M
T
R
C
V
BRG
HDSL2
STATUS
H
2
T
U
•
C
3
8
8
L
R
S
2
3
2
DCE
M
O
D
E
L
B
K
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Provides non-intrusive bridging jack
access to and from the
HDSL2 span at the DSX-1 interface.
Allows monitoring of the T1 payloads.
(XMT) (RCV)
System option buttons
Use MODE and LBK buttons to review all system
parameters, including user-configured settings, and to
activate loopbacks.
Press the utton
for at least 3 seconds to place the front-panel display in
scroll mode.When it has finished scrolling through all the
system parameters, the display returns to its normal mode.
To display system parameters:
To initiate a manual loopback:
1
MODE b
Press the LBK button for more
than 3 seconds to activate both the NLOC and CREM loopbacks.
If a loopback condition already exists, this will loopdown all
existing loopbacks.Press the LBK button again for more than
3 seconds to reactivate the dual loopback.
Press both the MODE and LBK buttons for at least
3 seconds.The following message appears:
Press the LBK button to activate the NLOC loopback
or press the MODE button to select the next available
loopback.
, press both the
MODE and LBK buttons for 3 or more seconds
To initiate a dual loopback:
MAN LPBK NLO?
2
To manually terminate a loopback
A Customer Remote (CREM)
loopback or a Network Local
(NLOC) loopback is in effect.
Green LED Normal operation.
HDSL2 acquisition or
system alarm.
Red LED Fuse alarm.
Flashing Red LED
Yellow LED
FlashingYellow LED System is in Armed (ARM)
mode.
Off Line power is off.
MaintenanceTerminal Modem Settings
9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control:OFF
Terminal emulation software:VT100
Configuration number
HiGain
HDSL2
GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C.
NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R.
CLOC 1111100 Signal from customer is looped back to the customer at the H2TU-R.
CREM 1111110 Signal from customer is looped back to the customer at the H2TU-C.
COLB (a)
(a) Dual loopbacks are only initiated from the MODE and LBK 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.
RULB(a) DSX-1 signal is looped back to the network at the H2TU-R and signal from the
customer is looped back to the customer at the H2TU-R.
SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R SmartJack module.
Loopdown 11100 Deactivates any of the above loopbacks.
Front-Panel Alarm Messages(a)
(a) Front-panel alarm messages are listed in order of priority. ALRM displays prior to any alarm message.
Pressing the LBK 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. The span closest to the network has higher priority.
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 Alarm Indication Signal.
RAIS Remote Alarm Indication Signal.
TRCI An RAI alarm (yellow) from the CPE with an error-free signal from the line unit or
network.
RRAI An RAI alarm (yellow) from the Customer Premises Equipment (CPE) with errors
from the line unit or network.
xxx-DBER A system DS1 Bit Error Rate (BER) alarm. (xxx denotes either TUC or TUR.)
PRMF H2TU-R Performance Report Messaging BER threshold exceeded at far end.
PRMN H2TU-R Performance Report Messaging BER threshold exceeded at near end.
xxx-HBER A system HDSL2 Block Error Rate (BER) alarm. (xxx denotes either TUC or TUR.)
xxx-MAL The margin on the HDSL2 loop has dropped below the threshold setting. (xxx
denotes either TUC or TUR.)
xxx-LA The attenuation on the HDSL2 loop hasexceeded the maximum threshold value. (xxx
denotes either TUC or TUR.)
Network
Customer
Premises
H2TU-C H2TU-R
TLOS*
NLOC CREM CLOC
1111000 NREM
1110000 1111100
1111110
11000
SMJK
When enabled,TLOS is an automatic loopback
that occurs with an LOS at the remote DS1 input.
*
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 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 is not receiving a response from the H2TU-R.
DSL2 Displays HDSL2 Subscriber Line 2 (DSL2) at initial power-up.
FERR A framing bit error occurred at H2TU-C DSX-1 input.
FLDL Flash download of firmware updates. (Contact Customer Service for update procedures.)
HES H2TU-C HDSL2 loop cyclical redundancy check (CRC) error.
LBPV A local bipolar violation has been received at the DSX-1 input to the H2TU-C.
M=xx Indicates the power of the received HDSL2 signal relative to noise (S/N with respect to
21.5 dB). Any value of 6 dB or greater is adequate for reliable system operation.
MNGD The H2TU-C is under control of the 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 Read-Only Settings Using MODE(a)
(a) Front-panel codes scroll in the order listed. The configured selections follow each code.
Code Description (default values in bold)
VER x.xx Software version number x.xx.
LIST xx List number of the H2TU-C.
FRM xxx Frame (SF, ESF, UNFR).
CODE xxx Line code setting (AMI or B8ZS).
LATT xx Loop Attenuation threshold setting (38).
MARG xx Margin threshold setting(4).
EQL Sets the DSX-1 Equalizer to: 0(0 to 132 ft.), 133 (133 to 265 ft.), 266 (266 to 398 ft.),
399(399to532ft.),533(533to655ft.).
RLBO Sets the H2TU-R line buildout to DSX, 0 dB, -7.5 dB, -15 dB, or DSX.
LPBK Enables (ENA) or disables (DIS) SmartJack loopback commands.
SPLB xxx Configures 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, 8 hours, 24 hours.
DS1 DSX-1 line code = AUTO, Bipolar with 8-Zero Substitution (B8ZS), Alternate Mark Inversion (AMI).
CONV H2TU-R frame format conversion = OFF (framing determined by the DS1 FRMG option), ACON
(autodetection of framing and potential frame conversion at the H2TU-R), or FCON
(autodetection of framing and forced frame format conversion at the H2TU-R).
FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode),
RDA Enables (ENA) or disables (DIS) alarm indications due to remote DS1 LOS at H2TU-R input.
ALMP Enables system to output an alarm pattern: Alarm Indication Signal (AIS) or Loss of Signal (LOS).
BPVT Enables (ENA) or disables (DIS) Bipolar Violation Transparency (BPVT).
NLBP Enables the H2TU-R to transmit either AIS or LOS towards CI for any network loopback.
TLOS Enables (ENA) or disables (DIS) a logic loopback at the H2TU-R when an LOS occurs at its DS1 input.
PRM OFF = no enhanced Performance Report Messaging; SPRM = Supplemental PRM;
NPRM = Network PRM; AUTO = SPRM + NPRM.
NAIS If ALMP is set to AIS, this option specifies which pattern is sent to the network when a remote
LOS or AIS occurs. CI = AIS-CI sent to the network; AIS = AIS sent to the network.
ROVR Enables (ENA) or disables (DIS) conversion of an ESF DS1 payload from the network with an
embedded RAI pattern to an SF-RAI pattern towards the CI at the H2TU-R. CONV option must
be set to FCON or ACON.
RACI Enables (ENA) or disables (DIS) conversion of a DS1 RAI (yellow alarm) signal received by the
H2TU-R to be converted to an RAI-CI signal towards the network.
PBON Configures the power output levels of the H2TU-C network unit toward the customer to comply
with Default (DEF) or Enhanced (ENH) templates.
PBOC Configures the power output levels of the H2TU-C customer unit toward the network to comply
with Default (DEF) or Enhanced (ENH) templates.
Product Number: 150-2406-16
CLEI Code: VACHKW8C
H2TU-C-388 List 1F
Line Unit
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HiGain
HDSL2
STATUS
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Quick Installation Guide
HIGAIN HDSL2
HDSL2
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: 714.832.9922
Fax: 714.832.9924
Technical Assistance
800.638.0031
714.730.3222
FCC Certification
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
ADC DSL Systems, Incorporated (“ADC”) warrants this product to be free of defects and to be fully functional
for a period of sixty (60) months from the date of original shipment, given correct customer installation and
regular maintenance. ADC will repair or replace at ADC’s option any unit without cost during this 60-month
period if the unit is found to be defective for any reason other than abuse or incorrect use or installation.
Do not try to repair the unit. If it fails, replace it with another unit and return the faulty unit to ADC for repair.
Any modifications of the unit by anyone other than an authorized ADC representative voids the warranty.
If a unit needs repair, call ADC for a Return Material Authorization (RMA) number and return the defective
unit, freight prepaid, along with a brief description of the problem.
ADC continues to repair faulty modules beyond the warranty program at a nominal charge. Contact your ADC
sales representative for details and pricing.
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 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 PairGain
Technologies, 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
©Copyright 2000 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.
THE H2TU-C-388 LIST 1F
The HiGain ®product family is the industry’s first practical implementation of High
bit-rate Digital Subscriber Line 2 (HDSL2). When an H2TU-C-388 List 1F line unit
is used in conjunction with a HiGain 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 AWG or
9,000 feet of 26 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 •Bipolar Violation Transparency (BPVT) option
•Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option •Performance Report Messaging (SPRM and
NPRM)
•Grounded loop detection •Bit Error Rate (BER) alarm option
•Remote provisioning through TL1 FDL or
11-bit payload commands •Power Back Off (PBON and PBOC) for
configuring power output levels
•HiGain maintenance screens for inventory,
provisioning, troubleshooting, and
performance monitoring
•Dual loopback commands
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
HDSL2 Line Rate 1.552 Mbps Overlapped Pulse Amplitude
Modulation Transmission with Interlocking
Spectra (OPTIS)
HDSL2 Output +16.8 dBm ±0.5 dB, 135 Ω
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
Raise the H2TU-C front panel and slidethe unit into the CO shelf card slot. Lower and
push on the H2TU-C front panel to secure the unit in the shelf.
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 turns
steady green when the entire system is operating with no alarms. (The DS1 signal
must be present.)
2The four-character display reports margin (SNR) readings (should be ≥6dB)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.
1Using the furnished 210-to-DB9 cable adapter, connect a maintenance terminal
to the H2TU-C craft port. The HiGain HDSL2 logon screen will appear. Press
+ to refresh the logon screen.
2Select the Config menu, Date and Time, then type the date and time.
3Select the Inventory menu, then type in the unit ID numbers.
4Change the settings of any system parameters, if necessary, by selecting the
Config menu, Standard Options or ADC Options.
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 use Master Clear in the Config menu.
Continued
CTRL R
Þ
™352-388-116-01°¨
Document Number: 352-388-116-01
October 02, 2000
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