ADC H2TU-C-202 Original operating instructions

HiGain
HiGain
FCC Class A Compliance
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Limited Warranty
Product warranty is determined by your service agreement. Contact your sales representative or
Customer Service for details.
Modifications
Any changes or modifications made to this device that are not expressly approved by ADC DSL
Systems, Inc. voids the user's warranty.
All wiring external to the products should follow the provisions of the current edition of the National
Electrical Code.
Standards Compliance
This equipment has been tested and verified to comply with the applicable sections of the following
safety standards:
 GR 63-CORE - Network Equipment-Building System (NEBS) Requirements
 GR 1089-CORE - Electromagnetic Compatibility and Electrical Safety
 Binational standard, UL-1950/CSA-C22.2 No. 950-95: Safety of Information Technology
Equipment
Trademark Information
ADC is a registered trademark of ADC Telecommunications, Inc. HiGain is a registered trademark of
ADC DSL Systems, Inc. Other product names mentioned in this installation guide are used for
identification purposes only and may be trademarks or registered trademarks of their respective
companies.
Copyright Information
© 2002 ADC DSL Systems, Inc. All rights reserved. Information contained in this document is company
private to ADC DSL Systems, Inc., and shall not be modified, used, copied, reproduced or disclosed in
whole or in part without the written consent of ADC.
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: [phone]
Fax: [phone]
Technical Assistance
Tel: [phone]
Tel: [phone]
Fax: [phone]
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
THE H2TU-C-202 LIST 1E
The HiGain HDSL2 product family is the industry’s first practical implementation of
High-bit-rate Digital Subscriber Line 2 (HDSL2). When an H2TU-C-202 List 1E line
unit is used in conjunction with a HiGain HDSL2 remote unit (H2TU-R), the system
provides 1.552 Mbps transmission on one unconditioned copper pair over the full
Carrier Service Area (CSA) range. The CSA includes loops up to 12,000 feet of 24
AWG or 9,000 feet of 26 AWG wire, including bridged taps. These line units can be
used with HiGain HDSL2 regenerators (H2RUs) to extend the CSA range. Firmware
version 3.0 or higher supports the use of regenerators.
FEATURES
SPECIFICATIONS
•Front-panel status LEDs, craft port, and
bridging jacks •Payload or HiGain loopback source identification
•Ultra-low wander •Bit Error Rate (BER) alarm option
•Three-span range with two regenerators
(36 kft, 24 AWG) •Bipolar Violation Transparency (BPVT) options
•Grounded loop detection •Flash download of firmware updates
•Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option •Performance Report Messaging (SPRM and NPRM)
•HiGain HDSL2 maintenance screens for
inventory, provisioning, troubleshooting, and
performance monitoring
•Digital Data Service (DDS) latching loopback
option
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 200 and 400 mechanics, high-density shelves
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
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI), 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-202, align the H2TU-C with the
enclosure slot guides and slide the unit in until it touches the backplane card-edge
connector. Push the H2TU-C into the card-edge connector until seated securely.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four status LEDs illuminate and report status
messages.
If the H2TU-C is able to communicate with the next span device, the following occurs:
1The LOOP Status LED flashes green while acquiring each device in the system,
and turns a steady green when the entire system is operating without any alarms.
(The T1 signal must be present.)
2If any alarm conditions exist after the system powers up, these are reported on the
appropriate status LED (see the descriptions of the four status LEDs on the
front-panel illustration inside).
PROVISIONING
After installing the H2TU-C, perform these basic provisioning tasks by accessing the
HiGain HDSL2 logon screen. Refer to the onscreen Help menu for navigational aids.
1Connect a maintenance terminal to the craft port (see front-panel illustration
inside) then press + to refresh the logon screen, if necessary.
2Select the Config menu, Date and Time, then type the date and time.
3Select the Inventory 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 PairGain Options.
5Once the H2TU-C is successfully installed and provisioned, access the Monitor
or Performance menus to clear the Performance and Alarm History screens to
ensure useful data.
Continued
CTRL R
Þ
L1E
H2TU-C-202 LIST 1E
LINE UNIT
QUICK INSTALLATION
´,/a¶42¨
1215654
December 13, 1999
Product Catalog: H2TU-C-202-L1E
CLEI: VACH4W4C
Document: 352-202-115-03, Revision 3

HiGain
HiGain
FCC Class A Compliance
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Limited Warranty
Product warranty is determined by your service agreement. Contact your sales representative or
Customer Service for details.
Modifications
Any changes or modifications made to this device that are not expressly approved by ADC DSL
Systems, Inc. voids the user's warranty.
All wiring external to the products should follow the provisions of the current edition of the National
Electrical Code.
Standards Compliance
This equipment has been tested and verified to comply with the applicable sections of the following
safety standards:
 GR 63-CORE - Network Equipment-Building System (NEBS) Requirements
 GR 1089-CORE - Electromagnetic Compatibility and Electrical Safety
 Binational standard, UL-1950/CSA-C22.2 No. 950-95: Safety of Information Technology
Equipment
Trademark Information
ADC is a registered trademark of ADC Telecommunications, Inc. HiGain is a registered trademark of
ADC DSL Systems, Inc. Other product names mentioned in this installation guide are used for
identification purposes only and may be trademarks or registered trademarks of their respective
companies.
Copyright Information
© 2002 ADC DSL Systems, Inc. All rights reserved. Information contained in this document is company
private to ADC DSL Systems, Inc., and shall not be modified, used, copied, reproduced or disclosed in
whole or in part without the written consent of ADC.
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: [phone]
Fax: [phone]
Technical Assistance
Tel: [phone]
Tel: [phone]
Fax: [phone]
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
THE H2TU-C-202 LIST 1E
The HiGain HDSL2 product family is the industry’s first practical implementation of
High-bit-rate Digital Subscriber Line 2 (HDSL2). When an H2TU-C-202 List 1E line
unit is used in conjunction with a HiGain HDSL2 remote unit (H2TU-R), the system
provides 1.552 Mbps transmission on one unconditioned copper pair over the full
Carrier Service Area (CSA) range. The CSA includes loops up to 12,000 feet of 24
AWG or 9,000 feet of 26 AWG wire, including bridged taps. These line units can be
used with HiGain HDSL2 regenerators (H2RUs) to extend the CSA range. Firmware
version 3.0 or higher supports the use of regenerators.
FEATURES
SPECIFICATIONS
•Front-panel status LEDs, craft port, and
bridging jacks •Payload or HiGain loopback source identification
•Ultra-low wander •Bit Error Rate (BER) alarm option
•Three-span range with two regenerators
(36 kft, 24 AWG) •Bipolar Violation Transparency (BPVT) options
•Grounded loop detection •Flash download of firmware updates
•Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option •Performance Report Messaging (SPRM and NPRM)
•HiGain HDSL2 maintenance screens for
inventory, provisioning, troubleshooting, and
performance monitoring
•Digital Data Service (DDS) latching loopback
option
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 200 and 400 mechanics, high-density shelves
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
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI), 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-202, align the H2TU-C with the
enclosure slot guides and slide the unit in until it touches the backplane card-edge
connector. Push the H2TU-C into the card-edge connector until seated securely.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four status LEDs illuminate and report status
messages.
If the H2TU-C is able to communicate with the next span device, the following occurs:
1The LOOP Status LED flashes green while acquiring each device in the system,
and turns a steady green when the entire system is operating without any alarms.
(The T1 signal must be present.)
2If any alarm conditions exist after the system powers up, these are reported on the
appropriate status LED (see the descriptions of the four status LEDs on the
front-panel illustration inside).
PROVISIONING
After installing the H2TU-C, perform these basic provisioning tasks by accessing the
HiGain HDSL2 logon screen. Refer to the onscreen Help menu for navigational aids.
1Connect a maintenance terminal to the craft port (see front-panel illustration
inside) then press + to refresh the logon screen, if necessary.
2Select the Config menu, Date and Time, then type the date and time.
3Select the Inventory 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 PairGain Options.
5Once the H2TU-C is successfully installed and provisioned, access the Monitor
or Performance menus to clear the Performance and Alarm History screens to
ensure useful data.
Continued
CTRL R
Þ
L1E
H2TU-C-202 LIST 1E
LINE UNIT
QUICK INSTALLATION
´,/a¶42¨
1215654
December 13, 1999
Product Catalog: H2TU-C-202-L1E
CLEI: VACH4W4C
Document: 352-202-115-03, Revision 3

HiGain
HiGain
FCC Class A Compliance
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Limited Warranty
Product warranty is determined by your service agreement. Contact your sales representative or
Customer Service for details.
Modifications
Any changes or modifications made to this device that are not expressly approved by ADC DSL
Systems, Inc. voids the user's warranty.
All wiring external to the products should follow the provisions of the current edition of the National
Electrical Code.
Standards Compliance
This equipment has been tested and verified to comply with the applicable sections of the following
safety standards:
 GR 63-CORE - Network Equipment-Building System (NEBS) Requirements
 GR 1089-CORE - Electromagnetic Compatibility and Electrical Safety
 Binational standard, UL-1950/CSA-C22.2 No. 950-95: Safety of Information Technology
Equipment
Trademark Information
ADC is a registered trademark of ADC Telecommunications, Inc. HiGain is a registered trademark of
ADC DSL Systems, Inc. Other product names mentioned in this installation guide are used for
identification purposes only and may be trademarks or registered trademarks of their respective
companies.
Copyright Information
© 2002 ADC DSL Systems, Inc. All rights reserved. Information contained in this document is company
private to ADC DSL Systems, Inc., and shall not be modified, used, copied, reproduced or disclosed in
whole or in part without the written consent of ADC.
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: [phone]
Fax: [phone]
Technical Assistance
Tel: [phone]
Tel: [phone]
Fax: [phone]
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
THE H2TU-C-202 LIST 1E
The HiGain HDSL2 product family is the industry’s first practical implementation of
High-bit-rate Digital Subscriber Line 2 (HDSL2). When an H2TU-C-202 List 1E line
unit is used in conjunction with a HiGain HDSL2 remote unit (H2TU-R), the system
provides 1.552 Mbps transmission on one unconditioned copper pair over the full
Carrier Service Area (CSA) range. The CSA includes loops up to 12,000 feet of 24
AWG or 9,000 feet of 26 AWG wire, including bridged taps. These line units can be
used with HiGain HDSL2 regenerators (H2RUs) to extend the CSA range. Firmware
version 3.0 or higher supports the use of regenerators.
FEATURES
SPECIFICATIONS
•Front-panel status LEDs, craft port, and
bridging jacks •Payload or HiGain loopback source identification
•Ultra-low wander •Bit Error Rate (BER) alarm option
•Three-span range with two regenerators
(36 kft, 24 AWG) •Bipolar Violation Transparency (BPVT) options
•Grounded loop detection •Flash download of firmware updates
•Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option •Performance Report Messaging (SPRM and NPRM)
•HiGain HDSL2 maintenance screens for
inventory, provisioning, troubleshooting, and
performance monitoring
•Digital Data Service (DDS) latching loopback
option
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 200 and 400 mechanics, high-density shelves
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
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI), 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-202, align the H2TU-C with the
enclosure slot guides and slide the unit in until it touches the backplane card-edge
connector. Push the H2TU-C into the card-edge connector until seated securely.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four status LEDs illuminate and report status
messages.
If the H2TU-C is able to communicate with the next span device, the following occurs:
1The LOOP Status LED flashes green while acquiring each device in the system,
and turns a steady green when the entire system is operating without any alarms.
(The T1 signal must be present.)
2If any alarm conditions exist after the system powers up, these are reported on the
appropriate status LED (see the descriptions of the four status LEDs on the
front-panel illustration inside).
PROVISIONING
After installing the H2TU-C, perform these basic provisioning tasks by accessing the
HiGain HDSL2 logon screen. Refer to the onscreen Help menu for navigational aids.
1Connect a maintenance terminal to the craft port (see front-panel illustration
inside) then press + to refresh the logon screen, if necessary.
2Select the Config menu, Date and Time, then type the date and time.
3Select the Inventory 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 PairGain Options.
5Once the H2TU-C is successfully installed and provisioned, access the Monitor
or Performance menus to clear the Performance and Alarm History screens to
ensure useful data.
Continued
CTRL R
Þ
L1E
H2TU-C-202 LIST 1E
LINE UNIT
QUICK INSTALLATION
´,/a¶42¨
1215654
December 13, 1999
Product Catalog: H2TU-C-202-L1E
CLEI: VACH4W4C
Document: 352-202-115-03, Revision 3

LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance menus. The inband codes shown below can be sent by a test set.
Craft Port Configuration Options
CONFIGURATION SWITCH DESCRIPTION
The H2TU-C-202 has a dip switch bank containing eight switches (located on the board). The switches are shown in the figure below and are described in detail in the Switch Descriptions table below. For more detailed information about the HiGain HDSL2 screens, provisioning, and loopback testing, refer to the H2TU-C-202 List 1E user manual, catalog number 152-202-115-xx. It can be downloaded from the ADC Web site at www.adc.com.
Card handle
List number
Status LEDs
Report the following conditions:
DSX-1 test access jacks
Connect standard test equipment.
Craft port provisioning
To access all system maintenance, provisioning, and performance screens, connect a standard 9-pin terminal cable between the serial port on a PC and the H2TU-C craft port.
BRG Provides non-intrusive bridging jack
access to (IN) and from (OUT) the HDSL2 span at the DSX-1 interface. Allows monitoring of the T1 payloads.
MaintenanceTerminal Modem Settings 9600 baud 8 data bits No parity 1 stop bit Hardware flow control:OFF Terminal emulation software:VT-100
HiGain
IN
l
BRG
l
OUT
H
2
T
U
*
C
2 0 2
H D
S
L
2
RS-232
DCE
*
H2TU-C-202 does not have a display
or MODE and SEL buttons.To provision
the , set the board dip
or access the maintenance
terminal menus through the craft port.
H2TU-C-202
switches
(Configuration number and CLEI code label on outside of handle)
L
ALM
LOOP
LBK
DSX
D S 1
ALM LED: LOOP LED: LBK LED: -Solid red when a fuse alarm is present. -Flashes red once per second while a
local alarm is present.
-Flashes red five times per second while a remote
alarm is present.
-Off when no alarm is present. -Solid green while all HDSL2 spans are up. -Flashes green once per second during
a loop acquisition on the span.
-Flashes green five times per second when a
margin or loop attenuation threshold is exceeded.
-Solid yellow when the system is in loopback, NLOC,
or CREM mode.
-Flashes yellow five times a second when the
system is armed.
-Off when the system is not armed or in loopback
mode.
DSX LED: -Solid green when DSX-1 signal is present and no
alarm is present.
-Flashes green once per second for BPV, FERR,
UAS, or CRC DSX-1 error.
-Flashes green five times per second when network
side framing or line code provisioning does not match the DSX-1 signal being received.
-Off when the DSX-1 signal is not present.
1E
Dip Switch (located on the board) *Card-edge Connector
DSX-1 EQL Equalization (switches 1-4) AMI/B8ZS Line code (switch 5)
LBTO Loopback timeout (switch 6)
FT1 Fractional T1 (switch 7) LCL/SPAN Local/Span Powering (switch 8)
27 25 23 21 19 17 15 13 11
9 7 3 5 1
DS1 Ring1 DS1 Tip1
Managementbus
Factory use only
Factory use only HDSL2 Ring Circuit ground
(-)
(+)
DS1 Ring
DSX-1In
DS1 Tip HDSL2 Tip Chassis ground*
Fusealarm
28 26 24 22 20 18 16 14 12 10
8 4 6 2
55 53 51 49 47 45 43 41 39 37 35
32 31
56
54 52 50 48 46 44 42 40 38 36 34
30
33 29
Note: Active pins are highlighted in black.
*Chassis ground may be tied to earth ground per local practice.
DSX-1Out
HDSL2
Span
-48Vdc Local Power
Chassis ground*
Alarm
A3LB Loopback Commands
Loopback Inband Code Description NLOC 1111-1111-0001-1
110 (FF1E) DSX-1 signal is looped back to the network at the H2TU-C.
NRG1 (a)
(a) Regenerators (doublers) are supported in firmware version 3.0 and higher.
1111-1111-0000-0 100 (FF04) DSX-1 signal is looped back to the network at H2RU1.
NRG2 (a) 1111-1111-0000-0
110 (FF06) DSX-1 signal is looped back to the network at H2RU2.
NREM 1111-1111-0000-0
010 (FF02) DSX-1 signal is looped back to the network at the H2TU-R.
SMJK 1111-1111-0100-1
000 (FF48) 100000 11000
DSX-1 signal is looped back to the network at the H2TU-R SmartJack module. (Choose any one of the three commands.)
CREM 0011-1111-0001-1
110 (3F1E) Signal from customer is looped back to the customer at the
H2TU-C.
CRG1 (a) 0011-1111-0000-0
100 (3F04) Signal from customer is looped back to the customer at H2RU1.
CRG2 (a) 0011-1111-0000-0
110 (3F06) Signal from customer is looped back to the customer at H2RU2.
CLOC 0011-1111-0000-0
010 (3F02) Signal from customer is looped back to the customer at the
H2TU-R.
Loopdown 1111-1111-0010-0
100 (FF24) 11100 100
Deactivates any of the above loopbacks. (Choose any one of the three commands.)
NLOC 1111-1111-0001-1
110 (FF1E) DSX-1 signal is looped back to the network at the H2TU-C.
Display Code Description (default values in bold) 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 system for generic (GNLB) or special inband loopback commands (A1LB, A2LB, A3LB,
A4LB, A5LB).
SPLB xxxx Configures system for generic (GNLB) or special inband loopback commands (A1LB, A2LB, A3LB,
A4LB, A5LB).
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. ALM Enables (ENA) or disables (DIS) alarm indications on pin H. FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode). 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 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. PRM OFF = No enhanced Performance Report Messaging; SPRM = Supplemental PRM; NPRM =
Network PRM; S+N = 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.
Network Customer
Premises
H2TU-C H2RU1 H2RU2 H2TU-R
NLOC
FF1E NRG1
FF04 NRG2
FF06 CLOC
3F02
CRG1 3F04 CRG2
3F06
CREM 3F1E
SMJK 11000
NREM
FF02
Switch Descriptions (default values in bold)
Left Side Options Switch
Number Right Side Options
Set the equalizer to 133 to 265 feet 1 (a)
(a) Only one of the DSX-1 line equalization switches (1 - 4) can be selected at a time. If more than one switch
is enabled, the lowest value setting has priority.
0
Set the equalizer to 266 to 398 feet 2 (a) 0 Set the equalizer to 399 to 532 feet 3(a) 0 Set the equalizer to 533 to 655 feet 4 (a) 0 Selects the DSX-1 line code Alternate Mark Inversion (AMI) 5Selects Bipolar with 8-zero Substitution
(B8ZS)
Enables the Loopback Timeout (LBTO) to 120 minutes 6Disables LBTO to NONE Enables Fractional T1 (FT1) loopback capability 7Disables FT1 loopback capability Configures the system for local powering 8Configures the system for Span powering

LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance menus. The inband codes shown
below can be sent by a test set.
Craft Port Configuration Options
CONFIGURATION SWITCH DESCRIPTION
The H2TU-C-202 has a dip switch bank containing eight switches (located on the board).
The switches are shown in the figure below and are described in detail in the Switch
Descriptions table below.
For more detailed information about the HiGain HDSL2 screens, provisioning, and
loopback testing, refer to the H2TU-C-202 List 1E user manual, catalog number
152-202-115-xx. It can be downloaded from the ADC Web site at www.adc.com.
Card handle
List number
Status LEDs
Report the following conditions:
DSX-1 test access jacks
Connect standard test equipment.
Craft port provisioning
To access all system maintenance, provisioning,
and performance screens, connect a standard
9-pin terminal cable between the serial port on a PC
and the H2TU-C craft port.
BRG Provides non-intrusive bridging jack
access to (IN) and from (OUT) the
HDSL2 span at the DSX-1 interface.
Allows monitoring of the T1 payloads.
MaintenanceTerminal Modem Settings
9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control:OFF
Terminal emulation software:VT-100
HiGain
IN
l
BRG
l
OUT
H
2
T
U
*
C
2
0
2
H
D
S
L
2
RS-232
DCE
* H2TU-C-202 does not have a display
or MODE and SEL buttons.To provision
the , set the board dip
or access the maintenance
terminal menus through the craft port.
H2TU-C-202
switches
(Configuration number
and CLEI code label on
outside of handle)
L
ALM
LOOP
LBK
DSX
D
S
1
ALM LED:
LOOP LED:
LBK LED:
-Solid red when a fuse alarm is present.
-Flashes red once per second while a
local alarm is present.
-Flashes red five times per second while a remote
alarm is present.
-Off when no alarm is present.
-Solid green while all HDSL2 spans are up.
-Flashes green once per second during
a loop acquisition on the span.
-Flashes green five times per second when a
margin or loop attenuation threshold is exceeded.
-Solid yellow when the system is in loopback, NLOC,
or CREM mode.
-Flashes yellow five times a second when the
system is armed.
-Off when the system is not armed or in loopback
mode.
DSX LED:
-Solid green when DSX-1 signal is present and no
alarm is present.
-Flashes green once per second for BPV, FERR,
UAS, or CRC DSX-1 error.
-Flashes green five times per second when network
side framing or line code provisioning does
not match the DSX-1 signal being received.
-Off when the DSX-1 signal is not present.
1E
Dip Switch (located on the board) *Card-edge Connector
DSX-1 EQL Equalization
(switches 1-4)
AMI/B8ZS Line code
(switch 5)
LBTO Loopback timeout
(switch 6)
FT1 Fractional T1
(switch 7)
LCL/SPAN Local/Span Powering
(switch 8)
27
25
23
21
19
17
15
13
11
9
7
3
5
1
DS1 Ring1
DS1 Tip1
Managementbus
Factory use only
Factory use only
HDSL2 Ring
Circuit ground
(-)
(+)
DS1 Ring
DSX-1In
DS1 Tip
HDSL2 Tip
Chassis ground*
Fusealarm
28
26
24
22
20
18
16
14
12
10
8
4
6
2
55
53
51
49
47
45
43
41
39
37
35
32 31
56
54
52
50
48
46
44
42
40
38
36
34
30
33
29
Note: Active pins are highlighted in black.
*Chassis ground may be tied to earth ground per local practice.
DSX-1Out
HDSL2
Span
-48Vdc Local Power
Chassis ground*
Alarm
A3LB Loopback Commands
Loopback Inband Code Description
NLOC 1111-1111-0001-1
110 (FF1E) DSX-1 signal is looped back to the network at the H2TU-C.
NRG1 (a)
(a) Regenerators (doublers) are supported in firmware version 3.0 and higher.
1111-1111-0000-0
100 (FF04) DSX-1 signal is looped back to the network at H2RU1.
NRG2 (a) 1111-1111-0000-0
110 (FF06) DSX-1 signal is looped back to the network at H2RU2.
NREM 1111-1111-0000-0
010 (FF02) DSX-1 signal is looped back to the network at the H2TU-R.
SMJK 1111-1111-0100-1
000 (FF48)
100000
11000
DSX-1 signal is looped back to the network at the H2TU-R
SmartJack module. (Choose any one of the three commands.)
CREM 0011-1111-0001-1
110 (3F1E) Signal from customer is looped back to the customer at the H2TU-C.
CRG1 (a) 0011-1111-0000-0
100 (3F04) Signal from customer is looped back to the customer at H2RU1.
CRG2 (a) 0011-1111-0000-0
110 (3F06) Signal from customer is looped back to the customer at H2RU2.
CLOC 0011-1111-0000-0
010 (3F02) Signal from customer is looped back to the customer at the H2TU-R.
Loopdown 1111-1111-0010-0
100 (FF24)
11100
100
Deactivates any of the above loopbacks. (Choose any one of the
three commands.)
NLOC 1111-1111-0001-1
110 (FF1E) DSX-1 signal is looped back to the network at the H2TU-C.
Display Code Description (default values in bold)
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 system for generic (GNLB) or special inband loopback commands (A1LB, A2LB, A3LB,
A4LB, A5LB).
SPLB xxxx Configures system for generic (GNLB) or special inband loopback commands (A1LB, A2LB, A3LB,
A4LB, A5LB).
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.
ALM Enables (ENA) or disables (DIS) alarm indications on pin H.
FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode).
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 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.
PRM OFF = No enhanced Performance Report Messaging; SPRM = Supplemental PRM; NPRM =
Network PRM; S+N = 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.
Network Customer
Premises
H2TU-C H2RU1 H2RU2 H2TU-R
NLOC
FF1E NRG1 FF04 NRG2
FF06 CLOC
3F02
CRG1
3F04 CRG2 3F06
CREM
3F1E
SMJK
11000
NREM
FF02
Switch Descriptions (default values in bold)
Left Side Options Switch
Number Right Side Options
Set the equalizer to 133 to 265 feet 1 (a)
(a) Only one of the DSX-1 line equalization switches (1 - 4) can be selected at a time. If more than one switch
is enabled, the lowest value setting has priority.
0
Set the equalizer to 266 to 398 feet 2 (a) 0
Set the equalizer to 399 to 532 feet 3(a) 0
Set the equalizer to 533 to 655 feet 4 (a) 0
Selects the DSX-1 line code Alternate Mark
Inversion (AMI) 5Selects Bipolar with 8-zero Substitution (B8ZS)
Enables the Loopback Timeout (LBTO) to
120 minutes 6Disables LBTO to NONE
Enables Fractional T1 (FT1) loopback
capability 7Disables FT1 loopback capability
Configures the system for local powering 8Configures the system for Span powering

LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance menus. The inband codes shown
below can be sent by a test set.
Craft Port Configuration Options
CONFIGURATION SWITCH DESCRIPTION
The H2TU-C-202 has a dip switch bank containing eight switches (located on the board).
The switches are shown in the figure below and are described in detail in the Switch
Descriptions table below.
For more detailed information about the HiGain HDSL2 screens, provisioning, and
loopback testing, refer to the H2TU-C-202 List 1E user manual, catalog number
152-202-115-xx. It can be downloaded from the ADC Web site at www.adc.com.
Card handle
List number
Status LEDs
Report the following conditions:
DSX-1 test access jacks
Connect standard test equipment.
Craft port provisioning
To access all system maintenance, provisioning,
and performance screens, connect a standard
9-pin terminal cable between the serial port on a PC
and the H2TU-C craft port.
BRG Provides non-intrusive bridging jack
access to (IN) and from (OUT) the
HDSL2 span at the DSX-1 interface.
Allows monitoring of the T1 payloads.
MaintenanceTerminal Modem Settings
9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control:OFF
Terminal emulation software:VT-100
HiGain
IN
l
BRG
l
OUT
H
2
T
U
*
C
2
0
2
H
D
S
L
2
RS-232
DCE
* H2TU-C-202 does not have a display
or MODE and SEL buttons.To provision
the , set the board dip
or access the maintenance
terminal menus through the craft port.
H2TU-C-202
switches
(Configuration number
and CLEI code label on
outside of handle)
L
ALM
LOOP
LBK
DSX
D
S
1
ALM LED:
LOOP LED:
LBK LED:
-Solid red when a fuse alarm is present.
-Flashes red once per second while a
local alarm is present.
-Flashes red five times per second while a remote
alarm is present.
-Off when no alarm is present.
-Solid green while all HDSL2 spans are up.
-Flashes green once per second during
a loop acquisition on the span.
-Flashes green five times per second when a
margin or loop attenuation threshold is exceeded.
-Solid yellow when the system is in loopback, NLOC,
or CREM mode.
-Flashes yellow five times a second when the
system is armed.
-Off when the system is not armed or in loopback
mode.
DSX LED:
-Solid green when DSX-1 signal is present and no
alarm is present.
-Flashes green once per second for BPV, FERR,
UAS, or CRC DSX-1 error.
-Flashes green five times per second when network
side framing or line code provisioning does
not match the DSX-1 signal being received.
-Off when the DSX-1 signal is not present.
1E
Dip Switch (located on the board) *Card-edge Connector
DSX-1 EQL Equalization
(switches 1-4)
AMI/B8ZS Line code
(switch 5)
LBTO Loopback timeout
(switch 6)
FT1 Fractional T1
(switch 7)
LCL/SPAN Local/Span Powering
(switch 8)
27
25
23
21
19
17
15
13
11
9
7
3
5
1
DS1 Ring1
DS1 Tip1
Managementbus
Factory use only
Factory use only
HDSL2 Ring
Circuit ground
(-)
(+)
DS1 Ring
DSX-1In
DS1 Tip
HDSL2 Tip
Chassis ground*
Fusealarm
28
26
24
22
20
18
16
14
12
10
8
4
6
2
55
53
51
49
47
45
43
41
39
37
35
32 31
56
54
52
50
48
46
44
42
40
38
36
34
30
33
29
Note: Active pins are highlighted in black.
*Chassis ground may be tied to earth ground per local practice.
DSX-1Out
HDSL2
Span
-48Vdc Local Power
Chassis ground*
Alarm
A3LB Loopback Commands
Loopback Inband Code Description
NLOC 1111-1111-0001-1
110 (FF1E) DSX-1 signal is looped back to the network at the H2TU-C.
NRG1 (a)
(a) Regenerators (doublers) are supported in firmware version 3.0 and higher.
1111-1111-0000-0
100 (FF04) DSX-1 signal is looped back to the network at H2RU1.
NRG2 (a) 1111-1111-0000-0
110 (FF06) DSX-1 signal is looped back to the network at H2RU2.
NREM 1111-1111-0000-0
010 (FF02) DSX-1 signal is looped back to the network at the H2TU-R.
SMJK 1111-1111-0100-1
000 (FF48)
100000
11000
DSX-1 signal is looped back to the network at the H2TU-R
SmartJack module. (Choose any one of the three commands.)
CREM 0011-1111-0001-1
110 (3F1E) Signal from customer is looped back to the customer at the H2TU-C.
CRG1 (a) 0011-1111-0000-0
100 (3F04) Signal from customer is looped back to the customer at H2RU1.
CRG2 (a) 0011-1111-0000-0
110 (3F06) Signal from customer is looped back to the customer at H2RU2.
CLOC 0011-1111-0000-0
010 (3F02) Signal from customer is looped back to the customer at the H2TU-R.
Loopdown 1111-1111-0010-0
100 (FF24)
11100
100
Deactivates any of the above loopbacks. (Choose any one of the
three commands.)
NLOC 1111-1111-0001-1
110 (FF1E) DSX-1 signal is looped back to the network at the H2TU-C.
Display Code Description (default values in bold)
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 system for generic (GNLB) or special inband loopback commands (A1LB, A2LB, A3LB,
A4LB, A5LB).
SPLB xxxx Configures system for generic (GNLB) or special inband loopback commands (A1LB, A2LB, A3LB,
A4LB, A5LB).
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.
ALM Enables (ENA) or disables (DIS) alarm indications on pin H.
FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode).
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 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.
PRM OFF = No enhanced Performance Report Messaging; SPRM = Supplemental PRM; NPRM =
Network PRM; S+N = 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.
Network Customer
Premises
H2TU-C H2RU1 H2RU2 H2TU-R
NLOC
FF1E NRG1 FF04 NRG2
FF06 CLOC
3F02
CRG1
3F04 CRG2 3F06
CREM
3F1E
SMJK
11000
NREM
FF02
Switch Descriptions (default values in bold)
Left Side Options Switch
Number Right Side Options
Set the equalizer to 133 to 265 feet 1 (a)
(a) Only one of the DSX-1 line equalization switches (1 - 4) can be selected at a time. If more than one switch
is enabled, the lowest value setting has priority.
0
Set the equalizer to 266 to 398 feet 2 (a) 0
Set the equalizer to 399 to 532 feet 3(a) 0
Set the equalizer to 533 to 655 feet 4 (a) 0
Selects the DSX-1 line code Alternate Mark
Inversion (AMI) 5Selects Bipolar with 8-zero Substitution (B8ZS)
Enables the Loopback Timeout (LBTO) to
120 minutes 6Disables LBTO to NONE
Enables Fractional T1 (FT1) loopback
capability 7Disables FT1 loopback capability
Configures the system for local powering 8Configures the system for Span powering

HiGain
HiGain
FCC Class A Compliance
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Limited Warranty
Product warranty is determined by your service agreement. Contact your sales representative or
Customer Service for details.
Modifications
Any changes or modifications made to this device that are not expressly approved by ADC DSL
Systems, Inc. voids the user's warranty.
All wiring external to the products should follow the provisions of the current edition of the National
Electrical Code.
Standards Compliance
This equipment has been tested and verified to comply with the applicable sections of the following
safety standards:
 GR 63-CORE - Network Equipment-Building System (NEBS) Requirements
 GR 1089-CORE - Electromagnetic Compatibility and Electrical Safety
 Binational standard, UL-1950/CSA-C22.2 No. 950-95: Safety of Information Technology
Equipment
Trademark Information
ADC is a registered trademark of ADC Telecommunications, Inc. HiGain is a registered trademark of
ADC DSL Systems, Inc. Other product names mentioned in this installation guide are used for
identification purposes only and may be trademarks or registered trademarks of their respective
companies.
Copyright Information
© 2002 ADC DSL Systems, Inc. All rights reserved. Information contained in this document is company
private to ADC DSL Systems, Inc., and shall not be modified, used, copied, reproduced or disclosed in
whole or in part without the written consent of ADC.
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: [phone]
Fax: [phone]
Technical Assistance
Tel: [phone]
Tel: [phone]
Fax: [phone]
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
THE H2TU-C-202 LIST 1E
The HiGain HDSL2 product family is the industry’s first practical implementation of
High-bit-rate Digital Subscriber Line 2 (HDSL2). When an H2TU-C-202 List 1E line
unit is used in conjunction with a HiGain HDSL2 remote unit (H2TU-R), the system
provides 1.552 Mbps transmission on one unconditioned copper pair over the full
Carrier Service Area (CSA) range. The CSA includes loops up to 12,000 feet of 24
AWG or 9,000 feet of 26 AWG wire, including bridged taps. These line units can be
used with HiGain HDSL2 regenerators (H2RUs) to extend the CSA range. Firmware
version 3.0 or higher supports the use of regenerators.
FEATURES
SPECIFICATIONS
•Front-panel status LEDs, craft port, and
bridging jacks •Payload or HiGain loopback source identification
•Ultra-low wander •Bit Error Rate (BER) alarm option
•Three-span range with two regenerators
(36 kft, 24 AWG) •Bipolar Violation Transparency (BPVT) options
•Grounded loop detection •Flash download of firmware updates
•Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option •Performance Report Messaging (SPRM and NPRM)
•HiGain HDSL2 maintenance screens for
inventory, provisioning, troubleshooting, and
performance monitoring
•Digital Data Service (DDS) latching loopback
option
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 200 and 400 mechanics, high-density shelves
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
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI), 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-202, align the H2TU-C with the
enclosure slot guides and slide the unit in until it touches the backplane card-edge
connector. Push the H2TU-C into the card-edge connector until seated securely.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four status LEDs illuminate and report status
messages.
If the H2TU-C is able to communicate with the next span device, the following occurs:
1The LOOP Status LED flashes green while acquiring each device in the system,
and turns a steady green when the entire system is operating without any alarms.
(The T1 signal must be present.)
2If any alarm conditions exist after the system powers up, these are reported on the
appropriate status LED (see the descriptions of the four status LEDs on the
front-panel illustration inside).
PROVISIONING
After installing the H2TU-C, perform these basic provisioning tasks by accessing the
HiGain HDSL2 logon screen. Refer to the onscreen Help menu for navigational aids.
1Connect a maintenance terminal to the craft port (see front-panel illustration
inside) then press + to refresh the logon screen, if necessary.
2Select the Config menu, Date and Time, then type the date and time.
3Select the Inventory 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 PairGain Options.
5Once the H2TU-C is successfully installed and provisioned, access the Monitor
or Performance menus to clear the Performance and Alarm History screens to
ensure useful data.
Continued
CTRL R
Þ
L1E
H2TU-C-202 LIST 1E
LINE UNIT
QUICK INSTALLATION
´,/a¶42¨
1215654
December 13, 1999
Product Catalog: H2TU-C-202-L1E
CLEI: VACH4W4C
Document: 352-202-115-03, Revision 3

LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance menus. The inband codes shown
below can be sent by a test set.
Craft Port Configuration Options
CONFIGURATION SWITCH DESCRIPTION
The H2TU-C-202 has a dip switch bank containing eight switches (located on the board).
The switches are shown in the figure below and are described in detail in the Switch
Descriptions table below.
For more detailed information about the HiGain HDSL2 screens, provisioning, and
loopback testing, refer to the H2TU-C-202 List 1E user manual, catalog number
152-202-115-xx. It can be downloaded from the ADC Web site at www.adc.com.
Card handle
List number
Status LEDs
Report the following conditions:
DSX-1 test access jacks
Connect standard test equipment.
Craft port provisioning
To access all system maintenance, provisioning,
and performance screens, connect a standard
9-pin terminal cable between the serial port on a PC
and the H2TU-C craft port.
BRG Provides non-intrusive bridging jack
access to (IN) and from (OUT) the
HDSL2 span at the DSX-1 interface.
Allows monitoring of the T1 payloads.
MaintenanceTerminal Modem Settings
9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control:OFF
Terminal emulation software:VT-100
HiGain
IN
l
BRG
l
OUT
H
2
T
U
*
C
2
0
2
H
D
S
L
2
RS-232
DCE
* H2TU-C-202 does not have a display
or MODE and SEL buttons.To provision
the , set the board dip
or access the maintenance
terminal menus through the craft port.
H2TU-C-202
switches
(Configuration number
and CLEI code label on
outside of handle)
L
ALM
LOOP
LBK
DSX
D
S
1
ALM LED:
LOOP LED:
LBK LED:
-Solid red when a fuse alarm is present.
-Flashes red once per second while a
local alarm is present.
-Flashes red five times per second while a remote
alarm is present.
-Off when no alarm is present.
-Solid green while all HDSL2 spans are up.
-Flashes green once per second during
a loop acquisition on the span.
-Flashes green five times per second when a
margin or loop attenuation threshold is exceeded.
-Solid yellow when the system is in loopback, NLOC,
or CREM mode.
-Flashes yellow five times a second when the
system is armed.
-Off when the system is not armed or in loopback
mode.
DSX LED:
-Solid green when DSX-1 signal is present and no
alarm is present.
-Flashes green once per second for BPV, FERR,
UAS, or CRC DSX-1 error.
-Flashes green five times per second when network
side framing or line code provisioning does
not match the DSX-1 signal being received.
-Off when the DSX-1 signal is not present.
1E
Dip Switch (located on the board) *Card-edge Connector
DSX-1 EQL Equalization
(switches 1-4)
AMI/B8ZS Line code
(switch 5)
LBTO Loopback timeout
(switch 6)
FT1 Fractional T1
(switch 7)
LCL/SPAN Local/Span Powering
(switch 8)
27
25
23
21
19
17
15
13
11
9
7
3
5
1
DS1 Ring1
DS1 Tip1
Managementbus
Factory use only
Factory use only
HDSL2 Ring
Circuit ground
(-)
(+)
DS1 Ring
DSX-1In
DS1 Tip
HDSL2 Tip
Chassis ground*
Fusealarm
28
26
24
22
20
18
16
14
12
10
8
4
6
2
55
53
51
49
47
45
43
41
39
37
35
32 31
56
54
52
50
48
46
44
42
40
38
36
34
30
33
29
Note: Active pins are highlighted in black.
*Chassis ground may be tied to earth ground per local practice.
DSX-1Out
HDSL2
Span
-48Vdc Local Power
Chassis ground*
Alarm
A3LB Loopback Commands
Loopback Inband Code Description
NLOC 1111-1111-0001-1
110 (FF1E) DSX-1 signal is looped back to the network at the H2TU-C.
NRG1 (a)
(a) Regenerators (doublers) are supported in firmware version 3.0 and higher.
1111-1111-0000-0
100 (FF04) DSX-1 signal is looped back to the network at H2RU1.
NRG2 (a) 1111-1111-0000-0
110 (FF06) DSX-1 signal is looped back to the network at H2RU2.
NREM 1111-1111-0000-0
010 (FF02) DSX-1 signal is looped back to the network at the H2TU-R.
SMJK 1111-1111-0100-1
000 (FF48)
100000
11000
DSX-1 signal is looped back to the network at the H2TU-R
SmartJack module. (Choose any one of the three commands.)
CREM 0011-1111-0001-1
110 (3F1E) Signal from customer is looped back to the customer at the H2TU-C.
CRG1 (a) 0011-1111-0000-0
100 (3F04) Signal from customer is looped back to the customer at H2RU1.
CRG2 (a) 0011-1111-0000-0
110 (3F06) Signal from customer is looped back to the customer at H2RU2.
CLOC 0011-1111-0000-0
010 (3F02) Signal from customer is looped back to the customer at the H2TU-R.
Loopdown 1111-1111-0010-0
100 (FF24)
11100
100
Deactivates any of the above loopbacks. (Choose any one of the
three commands.)
NLOC 1111-1111-0001-1
110 (FF1E) DSX-1 signal is looped back to the network at the H2TU-C.
Display Code Description (default values in bold)
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 system for generic (GNLB) or special inband loopback commands (A1LB, A2LB, A3LB,
A4LB, A5LB).
SPLB xxxx Configures system for generic (GNLB) or special inband loopback commands (A1LB, A2LB, A3LB,
A4LB, A5LB).
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.
ALM Enables (ENA) or disables (DIS) alarm indications on pin H.
FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode).
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 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.
PRM OFF = No enhanced Performance Report Messaging; SPRM = Supplemental PRM; NPRM =
Network PRM; S+N = 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.
Network Customer
Premises
H2TU-C H2RU1 H2RU2 H2TU-R
NLOC
FF1E NRG1 FF04 NRG2
FF06 CLOC
3F02
CRG1
3F04 CRG2 3F06
CREM
3F1E
SMJK
11000
NREM
FF02
Switch Descriptions (default values in bold)
Left Side Options Switch
Number Right Side Options
Set the equalizer to 133 to 265 feet 1 (a)
(a) Only one of the DSX-1 line equalization switches (1 - 4) can be selected at a time. If more than one switch
is enabled, the lowest value setting has priority.
0
Set the equalizer to 266 to 398 feet 2 (a) 0
Set the equalizer to 399 to 532 feet 3(a) 0
Set the equalizer to 533 to 655 feet 4 (a) 0
Selects the DSX-1 line code Alternate Mark
Inversion (AMI) 5Selects Bipolar with 8-zero Substitution (B8ZS)
Enables the Loopback Timeout (LBTO) to
120 minutes 6Disables LBTO to NONE
Enables Fractional T1 (FT1) loopback
capability 7Disables FT1 loopback capability
Configures the system for local powering 8Configures the system for Span powering