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
© 2001 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 2
The H2TU-C-388 List 2 functions as the central office end (H2TU-C) of a repeaterless
T1 transmission system when connected to a HiGain HDSL2 remote unit (H2TU-R).
Setting new standards for interoperability and efficiency, HiGain HDSL2 modules
transmit a 1.554 Mbps T1 payload on one unconditioned copper pair over the full
Carrier Service Area (CSA) range.
FEATURES
SPECIFICATIONS
•Front panel status LIght Emitting Diode (LED),
craft port, and four-character status display
•Payload (PL) or HiGain (HG) loopback source
identification
•Maintenance screens for inventory,
provisioning, troubleshooting, and performance
monitoring
•Power Back Off Network (PBON) and Power
Back Off Customer (PBOC) for configuring
HDSL2 transmit power levels
•Report menu option for downloading status
and performance monitoring data to a file
•Bipolar Violation Transparency (BPVT)
options
•Grounded loop detection •Bit Error Rate Tester (BERT)
•Loss of Signal/Alarm Indicator Signal
(LOS/AIS) payload alarm option
•Ultra-low wander
•Sources sealing current when connected to
an H2TU-R-402 List 1B (line and local
powering), List 1C (line powering) or higher
Voltage Source -48 Vdc nominal (-42.5 to 56.5 Vdc)
Operating Temperature -40°F to +149°F (-40°C to +65°C)
Operating Humidity 5% to 95% non-condensing
HDSL2 Span Voltage 0 or -180 Vdc ±5 Vdc
Mounting Double Dual Module Plus (DDM+) high-density shelf
HDSL2 Output +16.8 dBm ±0.5 dBm, 135 Ωat CO side
+16.5 dBm ±0.5 dBm, 135 Ωat remote side
Maximum Loop Attenuation 35 dB at 196 kHz, 135Ω
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI) or Bipolar with 8-Zero Substitution
(B8ZS)
DS1 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, align the H2TU-C with the enclosure
slot guides and slide the unit in. Push down on the front panel to properly seat it.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four-character display illuminates and reports
status messages.
If the H2TU-C is not communicating with the H2TU-R, it displays various alarm and
status messages.
If the H2TU-C is communicating with the H2TU-R, the following occurs:
1The Status LED flashes red while acquiring the H2TU-R and lights a steady
green when the entire system is operating with no alarms. (The DS1 signal must
be present.)
2The four-character display reports signal-to-noise ratio (SNR) margin readings
(should be ≥6 dB) and loop attenuation (should be <35 dB @196 KHz).
3After the system powers up, alarm conditions exist and 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
logon screen. Refer to the onscreen Help menu for navigational aids or use the
(to cycle through selections), (to activate the current setting,
choice, or to display a menu), or (to return to the parent menu), or
directional arrow keys (to navigate to a menu or item).
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 ADC 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 use Master Clear in the Config menu. This ensures
collection of accurate and meaningful data thereafter.
Continued
SPACEBAR ENTER
ESC F11
CTRL R
Þ
HiGain
HDSL2
STATUS
H
2
T
U
•
C
3
8
8
L
R
S
2
3
2
DCE
M
O
D
E
S
E
L
2
SETUP
H2TU-C-388 LIST 2
LINE UNIT
QUICK INSTALLATION
´,$#¶3+¨
1204033
October 29, 2001
Product Catalog: H2TU-C-388-L2
CLEI: VACJDKYE
Document: LTPH-QI-1114-01, Issue 1

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
© 2001 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 2
The H2TU-C-388 List 2 functions as the central office end (H2TU-C) of a repeaterless
T1 transmission system when connected to a HiGain HDSL2 remote unit (H2TU-R).
Setting new standards for interoperability and efficiency, HiGain HDSL2 modules
transmit a 1.554 Mbps T1 payload on one unconditioned copper pair over the full
Carrier Service Area (CSA) range.
FEATURES
SPECIFICATIONS
•Front panel status LIght Emitting Diode (LED),
craft port, and four-character status display
•Payload (PL) or HiGain (HG) loopback source
identification
•Maintenance screens for inventory,
provisioning, troubleshooting, and performance
monitoring
•Power Back Off Network (PBON) and Power
Back Off Customer (PBOC) for configuring
HDSL2 transmit power levels
•Report menu option for downloading status
and performance monitoring data to a file
•Bipolar Violation Transparency (BPVT)
options
•Grounded loop detection •Bit Error Rate Tester (BERT)
•Loss of Signal/Alarm Indicator Signal
(LOS/AIS) payload alarm option
•Ultra-low wander
•Sources sealing current when connected to
an H2TU-R-402 List 1B (line and local
powering), List 1C (line powering) or higher
Voltage Source -48 Vdc nominal (-42.5 to 56.5 Vdc)
Operating Temperature -40°F to +149°F (-40°C to +65°C)
Operating Humidity 5% to 95% non-condensing
HDSL2 Span Voltage 0 or -180 Vdc ±5 Vdc
Mounting Double Dual Module Plus (DDM+) high-density shelf
HDSL2 Output +16.8 dBm ±0.5 dBm, 135 Ωat CO side
+16.5 dBm ±0.5 dBm, 135 Ωat remote side
Maximum Loop Attenuation 35 dB at 196 kHz, 135Ω
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI) or Bipolar with 8-Zero Substitution
(B8ZS)
DS1 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, align the H2TU-C with the enclosure
slot guides and slide the unit in. Push down on the front panel to properly seat it.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four-character display illuminates and reports
status messages.
If the H2TU-C is not communicating with the H2TU-R, it displays various alarm and
status messages.
If the H2TU-C is communicating with the H2TU-R, the following occurs:
1The Status LED flashes red while acquiring the H2TU-R and lights a steady
green when the entire system is operating with no alarms. (The DS1 signal must
be present.)
2The four-character display reports signal-to-noise ratio (SNR) margin readings
(should be ≥6 dB) and loop attenuation (should be <35 dB @196 KHz).
3After the system powers up, alarm conditions exist and 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
logon screen. Refer to the onscreen Help menu for navigational aids or use the
(to cycle through selections), (to activate the current setting,
choice, or to display a menu), or (to return to the parent menu), or
directional arrow keys (to navigate to a menu or item).
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 ADC 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 use Master Clear in the Config menu. This ensures
collection of accurate and meaningful data thereafter.
Continued
SPACEBAR ENTER
ESC F11
CTRL R
Þ
HiGain
HDSL2
STATUS
H
2
T
U
•
C
3
8
8
L
R
S
2
3
2
DCE
M
O
D
E
S
E
L
2
SETUP
H2TU-C-388 LIST 2
LINE UNIT
QUICK INSTALLATION
´,$#¶3+¨
1204033
October 29, 2001
Product Catalog: H2TU-C-388-L2
CLEI: VACJDKYE
Document: LTPH-QI-1114-01, Issue 1

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
© 2001 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 2
The H2TU-C-388 List 2 functions as the central office end (H2TU-C) of a repeaterless
T1 transmission system when connected to a HiGain HDSL2 remote unit (H2TU-R).
Setting new standards for interoperability and efficiency, HiGain HDSL2 modules
transmit a 1.554 Mbps T1 payload on one unconditioned copper pair over the full
Carrier Service Area (CSA) range.
FEATURES
SPECIFICATIONS
•Front panel status LIght Emitting Diode (LED),
craft port, and four-character status display
•Payload (PL) or HiGain (HG) loopback source
identification
•Maintenance screens for inventory,
provisioning, troubleshooting, and performance
monitoring
•Power Back Off Network (PBON) and Power
Back Off Customer (PBOC) for configuring
HDSL2 transmit power levels
•Report menu option for downloading status
and performance monitoring data to a file
•Bipolar Violation Transparency (BPVT)
options
•Grounded loop detection •Bit Error Rate Tester (BERT)
•Loss of Signal/Alarm Indicator Signal
(LOS/AIS) payload alarm option
•Ultra-low wander
•Sources sealing current when connected to
an H2TU-R-402 List 1B (line and local
powering), List 1C (line powering) or higher
Voltage Source -48 Vdc nominal (-42.5 to 56.5 Vdc)
Operating Temperature -40°F to +149°F (-40°C to +65°C)
Operating Humidity 5% to 95% non-condensing
HDSL2 Span Voltage 0 or -180 Vdc ±5 Vdc
Mounting Double Dual Module Plus (DDM+) high-density shelf
HDSL2 Output +16.8 dBm ±0.5 dBm, 135 Ωat CO side
+16.5 dBm ±0.5 dBm, 135 Ωat remote side
Maximum Loop Attenuation 35 dB at 196 kHz, 135Ω
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI) or Bipolar with 8-Zero Substitution
(B8ZS)
DS1 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, align the H2TU-C with the enclosure
slot guides and slide the unit in. Push down on the front panel to properly seat it.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four-character display illuminates and reports
status messages.
If the H2TU-C is not communicating with the H2TU-R, it displays various alarm and
status messages.
If the H2TU-C is communicating with the H2TU-R, the following occurs:
1The Status LED flashes red while acquiring the H2TU-R and lights a steady
green when the entire system is operating with no alarms. (The DS1 signal must
be present.)
2The four-character display reports signal-to-noise ratio (SNR) margin readings
(should be ≥6 dB) and loop attenuation (should be <35 dB @196 KHz).
3After the system powers up, alarm conditions exist and 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
logon screen. Refer to the onscreen Help menu for navigational aids or use the
(to cycle through selections), (to activate the current setting,
choice, or to display a menu), or (to return to the parent menu), or
directional arrow keys (to navigate to a menu or item).
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 ADC 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 use Master Clear in the Config menu. This ensures
collection of accurate and meaningful data thereafter.
Continued
SPACEBAR ENTER
ESC F11
CTRL R
Þ
HiGain
HDSL2
STATUS
H
2
T
U
•
C
3
8
8
L
R
S
2
3
2
DCE
M
O
D
E
S
E
L
2
SETUP
H2TU-C-388 LIST 2
LINE UNIT
QUICK INSTALLATION
´,$#¶3+¨
1204033
October 29, 2001
Product Catalog: H2TU-C-388-L2
CLEI: VACJDKYE
Document: LTPH-QI-1114-01, Issue 1

LOOPBACK TESTING
Initiate loopback testing from the maintenance menus or use the MODE and SEL pushbuttons. The in-band codes shown below can be sent by a test set. Copies of this publication or the technical practice (LTPH-TP-1115-xx) can be downloaded from the ADC website at www.adc.com. To order a hard copy, please contact your sales representative.
HDSL2
STATUS
H
2 T
U
•
C
3 8 8
L
R S 2 3 2
DCE
M
O D
E
S
E L
HiGain
HDSL2
2
SETUP
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 Factory use only
-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.
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
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Status LED
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
Maintenance Terminal 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 Flashing Yellow LED System is in Armed (ARM) mode. Off Line power is off. HDSL2span
Ring Tip
List number
GNLB Loopback Commands
Loopback In-Band 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. SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R SmartJack
module.
CREM 1111110 DS1 signal from customer is looped back to the customer at the H2TU-C. CLOC 1111100 DS1 signal from customer is looped back to the customer at the H2TU-R. 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 pushbutton initiates an Alarm Cutoff (ACO) message.
Message Description (listed in priority order) PWR FEED SHRT(b)
(b) Message displays repeatedly as long as the alarm condition exists and is not included in the priority order.
A short between the Tip and Ring of the HDSL2 pair.
PWR FEED GND (b) The HDSL2 loop is grounded. PWR FEED OPEN(b) A line-power open condition. LOSW The HDSL2 loop has lost synchronization. LLOS No signal is detected at the DSX-1 input to the H2TU-C. RLOS No signal is detected at the DS1 input to the H2TU-R. LAIS Line Alarm Indication Signal. RAIS Remote Alarm Indication Signal. LRAI An RAI condition is detected at the remote and the signal from the line unit is
error-free.
RRAI An RAI alarm (yellow) from the Customer Premises Equipment (CPE) with errors from
the line unit or network.
xxx-LOF DS1 input does not contain ESF or SF frame pattern setting of the FRMG option. (xxx
denotes either TUC or TUR.)
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 has exceeded the maximum threshold value. (xxx
denotes either TUC or TUR.)
To comply with the intrabuilding wiring requirements of GR-1089 CORE, Section 4.5.9, the shields of the ABAM-type cables that connect the H2TU-C-388 List 2 DSX-1 output ports to the cross-connect panel must be grounded at both ends.
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.
*
DS1DSX-1
Front Panel Diagnostic Messages (normal operating messages in bold)
Display Code Description (normal operating messages in bold) A=xx(a)
(a) Normal operating range.
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. ARM Armed to respond to Intelligent Repeater Loop (ILR) codes. BAD RT? The H2TU-C is not receiving a response from the H2TU-R. FERR A framing bit error 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(a) 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 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 are trying to establish contact with each
other on the HDSL2 loop.
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; 8 hours, 24 hours. DS1 DSX-1 line code = AUTO, B8ZS, AMI. FRMG DS1 frame formatting = AUTO (auto framing mode), UNFR (unframed mode), SF
(SuperFrame) and ESF (Extended SuperFrame).
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. 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.
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.

LOOPBACK TESTING
Initiate loopback testing from the maintenance menus or use the MODE and SEL
pushbuttons. The in-band codes shown below can be sent by a test set.
Copies of this publication or the technical practice (LTPH-TP-1115-xx) can be downloaded
from the ADC website at www.adc.com. To order a hard copy, please contact your sales
representative.
HDSL2
STATUS
H
2
T
U
•
C
3
8
8
L
R
S
2
3
2
DCE
M
O
D
E
S
E
L
HiGain
HDSL2
2
SETUP
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
Factory use only
-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.
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
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Status LED
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
Maintenance Terminal 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
Flashing Yellow LED System is in Armed (ARM) mode.
Off Line power is off. HDSL2span
Ring
Tip
List number
GNLB Loopback Commands
Loopback In-Band 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.
SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R SmartJack
module.
CREM 1111110 DS1 signal from customer is looped back to the customer at the H2TU-C.
CLOC 1111100 DS1 signal from customer is looped back to the customer at the H2TU-R.
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 pushbutton initiates an Alarm Cutoff (ACO) message.
Message Description (listed in priority order)
PWR FEED SHRT(b)
(b) Message displays repeatedly as long as the alarm condition exists and is not included in the priority order.
A short between the Tip and Ring of the HDSL2 pair.
PWR FEED GND (b) The HDSL2 loop is grounded.
PWR FEED OPEN(b) A line-power open condition.
LOSW The HDSL2 loop has lost synchronization.
LLOS No signal is detected at the DSX-1 input to the H2TU-C.
RLOS No signal is detected at the DS1 input to the H2TU-R.
LAIS Line Alarm Indication Signal.
RAIS Remote Alarm Indication Signal.
LRAI An RAI condition is detected at the remote and the signal from the line unit is
error-free.
RRAI An RAI alarm (yellow) from the Customer Premises Equipment (CPE) with errors from
the line unit or network.
xxx-LOF DS1 input does not contain ESF or SF frame pattern setting of the FRMG option. (xxx
denotes either TUC or TUR.)
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 has exceeded the maximum threshold value. (xxx
denotes either TUC or TUR.)
To comply with the intrabuilding wiring requirements of GR-1089
CORE, Section 4.5.9, the shields of the ABAM-type cables that
connect the H2TU-C-388 List 2 DSX-1 output ports to the
cross-connect panel must be grounded at both ends.
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.
*
DS1DSX-1
Front Panel Diagnostic Messages (normal operating messages in bold)
Display Code Description (normal operating messages in bold)
A=xx(a)
(a) Normal operating range.
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.
ARM Armed to respond to Intelligent Repeater Loop (ILR) codes.
BAD RT? The H2TU-C is not receiving a response from the H2TU-R.
FERR A framing bit error 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(a) 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 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 are trying to establish contact with each
other on the HDSL2 loop.
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; 8 hours, 24 hours.
DS1 DSX-1 line code = AUTO, B8ZS, AMI.
FRMG DS1 frame formatting = AUTO (auto framing mode), UNFR (unframed mode), SF
(SuperFrame) and ESF (Extended SuperFrame).
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.
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.
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.

LOOPBACK TESTING
Initiate loopback testing from the maintenance menus or use the MODE and SEL
pushbuttons. The in-band codes shown below can be sent by a test set.
Copies of this publication or the technical practice (LTPH-TP-1115-xx) can be downloaded
from the ADC website at www.adc.com. To order a hard copy, please contact your sales
representative.
HDSL2
STATUS
H
2
T
U
•
C
3
8
8
L
R
S
2
3
2
DCE
M
O
D
E
S
E
L
HiGain
HDSL2
2
SETUP
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
Factory use only
-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.
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
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Status LED
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
Maintenance Terminal 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
Flashing Yellow LED System is in Armed (ARM) mode.
Off Line power is off. HDSL2span
Ring
Tip
List number
GNLB Loopback Commands
Loopback In-Band 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.
SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R SmartJack
module.
CREM 1111110 DS1 signal from customer is looped back to the customer at the H2TU-C.
CLOC 1111100 DS1 signal from customer is looped back to the customer at the H2TU-R.
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 pushbutton initiates an Alarm Cutoff (ACO) message.
Message Description (listed in priority order)
PWR FEED SHRT(b)
(b) Message displays repeatedly as long as the alarm condition exists and is not included in the priority order.
A short between the Tip and Ring of the HDSL2 pair.
PWR FEED GND (b) The HDSL2 loop is grounded.
PWR FEED OPEN(b) A line-power open condition.
LOSW The HDSL2 loop has lost synchronization.
LLOS No signal is detected at the DSX-1 input to the H2TU-C.
RLOS No signal is detected at the DS1 input to the H2TU-R.
LAIS Line Alarm Indication Signal.
RAIS Remote Alarm Indication Signal.
LRAI An RAI condition is detected at the remote and the signal from the line unit is
error-free.
RRAI An RAI alarm (yellow) from the Customer Premises Equipment (CPE) with errors from
the line unit or network.
xxx-LOF DS1 input does not contain ESF or SF frame pattern setting of the FRMG option. (xxx
denotes either TUC or TUR.)
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 has exceeded the maximum threshold value. (xxx
denotes either TUC or TUR.)
To comply with the intrabuilding wiring requirements of GR-1089
CORE, Section 4.5.9, the shields of the ABAM-type cables that
connect the H2TU-C-388 List 2 DSX-1 output ports to the
cross-connect panel must be grounded at both ends.
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.
*
DS1DSX-1
Front Panel Diagnostic Messages (normal operating messages in bold)
Display Code Description (normal operating messages in bold)
A=xx(a)
(a) Normal operating range.
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.
ARM Armed to respond to Intelligent Repeater Loop (ILR) codes.
BAD RT? The H2TU-C is not receiving a response from the H2TU-R.
FERR A framing bit error 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(a) 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 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 are trying to establish contact with each
other on the HDSL2 loop.
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; 8 hours, 24 hours.
DS1 DSX-1 line code = AUTO, B8ZS, AMI.
FRMG DS1 frame formatting = AUTO (auto framing mode), UNFR (unframed mode), SF
(SuperFrame) and ESF (Extended SuperFrame).
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.
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.
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.

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
© 2001 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 2
The H2TU-C-388 List 2 functions as the central office end (H2TU-C) of a repeaterless
T1 transmission system when connected to a HiGain HDSL2 remote unit (H2TU-R).
Setting new standards for interoperability and efficiency, HiGain HDSL2 modules
transmit a 1.554 Mbps T1 payload on one unconditioned copper pair over the full
Carrier Service Area (CSA) range.
FEATURES
SPECIFICATIONS
•Front panel status LIght Emitting Diode (LED),
craft port, and four-character status display
•Payload (PL) or HiGain (HG) loopback source
identification
•Maintenance screens for inventory,
provisioning, troubleshooting, and performance
monitoring
•Power Back Off Network (PBON) and Power
Back Off Customer (PBOC) for configuring
HDSL2 transmit power levels
•Report menu option for downloading status
and performance monitoring data to a file
•Bipolar Violation Transparency (BPVT)
options
•Grounded loop detection •Bit Error Rate Tester (BERT)
•Loss of Signal/Alarm Indicator Signal
(LOS/AIS) payload alarm option
•Ultra-low wander
•Sources sealing current when connected to
an H2TU-R-402 List 1B (line and local
powering), List 1C (line powering) or higher
Voltage Source -48 Vdc nominal (-42.5 to 56.5 Vdc)
Operating Temperature -40°F to +149°F (-40°C to +65°C)
Operating Humidity 5% to 95% non-condensing
HDSL2 Span Voltage 0 or -180 Vdc ±5 Vdc
Mounting Double Dual Module Plus (DDM+) high-density shelf
HDSL2 Output +16.8 dBm ±0.5 dBm, 135 Ωat CO side
+16.5 dBm ±0.5 dBm, 135 Ωat remote side
Maximum Loop Attenuation 35 dB at 196 kHz, 135Ω
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI) or Bipolar with 8-Zero Substitution
(B8ZS)
DS1 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, align the H2TU-C with the enclosure
slot guides and slide the unit in. Push down on the front panel to properly seat it.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four-character display illuminates and reports
status messages.
If the H2TU-C is not communicating with the H2TU-R, it displays various alarm and
status messages.
If the H2TU-C is communicating with the H2TU-R, the following occurs:
1The Status LED flashes red while acquiring the H2TU-R and lights a steady
green when the entire system is operating with no alarms. (The DS1 signal must
be present.)
2The four-character display reports signal-to-noise ratio (SNR) margin readings
(should be ≥6 dB) and loop attenuation (should be <35 dB @196 KHz).
3After the system powers up, alarm conditions exist and 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
logon screen. Refer to the onscreen Help menu for navigational aids or use the
(to cycle through selections), (to activate the current setting,
choice, or to display a menu), or (to return to the parent menu), or
directional arrow keys (to navigate to a menu or item).
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 ADC 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 use Master Clear in the Config menu. This ensures
collection of accurate and meaningful data thereafter.
Continued
SPACEBAR ENTER
ESC F11
CTRL R
Þ
HiGain
HDSL2
STATUS
H
2
T
U
•
C
3
8
8
L
R
S
2
3
2
DCE
M
O
D
E
S
E
L
2
SETUP
H2TU-C-388 LIST 2
LINE UNIT
QUICK INSTALLATION
´,$#¶3+¨
1204033
October 29, 2001
Product Catalog: H2TU-C-388-L2
CLEI: VACJDKYE
Document: LTPH-QI-1114-01, Issue 1