ADC HiGain H2TU-C-319 List 4E 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-319 LIST 4E
The H2TU-C-319 List 4E functions as the Central Office (CO) end of a repeaterless T1
transmissionsystem when connected to aHiGain HDSL2 remote unit (H2TU-R). Settingnew
standards forinteroperability 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 LED, craft port, and
four-character status display
•Maintenance screens for inventory, provisioning,
troubleshooting, and performance monitoring
•Loss of Signal/Alarm Indication Signal (LOS/AIS)
payload alarm option
•Grounded loop detection
•Report menu option for downloading status and
performance monitoring data to a file
•Ultra-low wander
•Payload (PL) or HiGain (HG) loopback source
identification
•Bipolar Violation Transparency (BPVT) option
•Performance Report Messaging (SPRM and NPRM)
•Bit Error Rate (BER) alarm option
•Power Back Off Network (PBON) and Power
Back Off Customer (PBOC) for configuring
HDSL2 transmit power levels
•Digital Data Service (DDS) latching loopback
option
•Supports the in-band 100 loopdown and
100000 loopup command when SmartJack
loopback (LPBK) option is enabled
•Sources sealing current when connected to
an H2TU-R-402 List 5E or higher
•Supports automatic protection switching
(APS) (a)
•Metalic Test Access
(a) For more information about APS, see the PSC-606 Protection Switching Controller technical practice,
document LTPH-TP-1006-xx.
Operating Temperature -40°F to +149°F (-40°C to +65°C)
Operating Humidity 5% to 95% non-condensing
HDSL2 Span Voltage 0, -180 ±5 Vdc
Mounting 3192 high-density shelf
HDSL2 Line Rate 1.552 Mbps Overlapped Pulse Amplitude Modulation Transmission with OPTIS
HDSL2 Output +16.8 dBm ±0.5 dB, 135Ω(0-450 kHz) at CO side
+16.5 dBm ±0.5 dB, 135Ω(0-350 kHz) at remote side
Maximum Loop Attenuation 35 dB at 196 kHz, 135Ω
DSX-1 Line Rate 1.544 Mbps ±200 bps
DSX-1 Line Format Alternate Mark Inversion (AMI) or Bipolar with 8-zero Substitution (B8ZS)
DSX-1 Frame Format Extended SuperFrame (ESF), SuperFrame (SF), or Unframed (UNFR)
DSX-1 Pulse Output 6 V pk-pk, pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure the proper installation of the unit to the enclosure, align the H2TU-C with the
enclosure slot guides and slide the unit into the chassis until the unit is firmly seated in
the backplane.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four-character display illuminates and reports status
messages.
If the H2TU-C is unable to communicate with the H2TU-R, it displays various alarmand
status messages.
If the H2TU-C is able to communicate with the H2TU-R, the following occurs:
1The Status LED flashes red while acquiring the H2TU-R and turns a steady green
when the entire system is operating with no alarms. (The DS1 signal must be
present.)
2The four-character display reports margin (SNR) readings (should be ≥6 dB) and
loop attenuation (should be <35 dB @196 KHz).
3After the system powers up, alarm conditions that exist are reported on the display.
(The H2TU-C reports alarms if no DS1 signal is applied.)
PROVISIONING
After installation, perform these basic provisioning tasks from the HiGain HDSL2 logon
screen. Refer to the onscreen Help menu for navigational aids.
1Connect a maintenance terminal tothe 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 ADC Options. (Configuration options can also be set
from the front panel using the MODE and SEL buttons. See the “Front-Panel
Read-Only Settings Using MODE” table inside.)
Continued
When installing an H2TU-C, wear an antistatic wrist strap.
Avoid touching components on the circuit board.
CTRL R
Þ
S
E
L
M
O
D
E
SETUP
STATUS
R
S
2
3
2
O
U
T
I
N
B
R
G
B
R
G
L
I
N
E
L
I
N
E
H
2
T
U
*
C
3
1
9
L
4E
HDSL2
HiGain
DCE
H2TU-C-319 LIST 4E
LINE UNIT
Product Catalog: H2TU-C-319-L4E
CLEI: VACHYVYG
Document: LTPH-QI-1078-02, Issue 2
´,-Q¶5j¨
1213495
January 9, 2002
QUICK INSTALLATION

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-319 LIST 4E
The H2TU-C-319 List 4E functions as the Central Office (CO) end of a repeaterless T1
transmissionsystem when connected to aHiGain HDSL2 remote unit (H2TU-R). Settingnew
standards forinteroperability 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 LED, craft port, and
four-character status display
•Maintenance screens for inventory, provisioning,
troubleshooting, and performance monitoring
•Loss of Signal/Alarm Indication Signal (LOS/AIS)
payload alarm option
•Grounded loop detection
•Report menu option for downloading status and
performance monitoring data to a file
•Ultra-low wander
•Payload (PL) or HiGain (HG) loopback source
identification
•Bipolar Violation Transparency (BPVT) option
•Performance Report Messaging (SPRM and NPRM)
•Bit Error Rate (BER) alarm option
•Power Back Off Network (PBON) and Power
Back Off Customer (PBOC) for configuring
HDSL2 transmit power levels
•Digital Data Service (DDS) latching loopback
option
•Supports the in-band 100 loopdown and
100000 loopup command when SmartJack
loopback (LPBK) option is enabled
•Sources sealing current when connected to
an H2TU-R-402 List 5E or higher
•Supports automatic protection switching
(APS) (a)
•Metalic Test Access
(a) For more information about APS, see the PSC-606 Protection Switching Controller technical practice,
document LTPH-TP-1006-xx.
Operating Temperature -40°F to +149°F (-40°C to +65°C)
Operating Humidity 5% to 95% non-condensing
HDSL2 Span Voltage 0, -180 ±5 Vdc
Mounting 3192 high-density shelf
HDSL2 Line Rate 1.552 Mbps Overlapped Pulse Amplitude Modulation Transmission with OPTIS
HDSL2 Output +16.8 dBm ±0.5 dB, 135Ω(0-450 kHz) at CO side
+16.5 dBm ±0.5 dB, 135Ω(0-350 kHz) at remote side
Maximum Loop Attenuation 35 dB at 196 kHz, 135Ω
DSX-1 Line Rate 1.544 Mbps ±200 bps
DSX-1 Line Format Alternate Mark Inversion (AMI) or Bipolar with 8-zero Substitution (B8ZS)
DSX-1 Frame Format Extended SuperFrame (ESF), SuperFrame (SF), or Unframed (UNFR)
DSX-1 Pulse Output 6 V pk-pk, pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure the proper installation of the unit to the enclosure, align the H2TU-C with the
enclosure slot guides and slide the unit into the chassis until the unit is firmly seated in
the backplane.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four-character display illuminates and reports status
messages.
If the H2TU-C is unable to communicate with the H2TU-R, it displays various alarmand
status messages.
If the H2TU-C is able to communicate with the H2TU-R, the following occurs:
1The Status LED flashes red while acquiring the H2TU-R and turns a steady green
when the entire system is operating with no alarms. (The DS1 signal must be
present.)
2The four-character display reports margin (SNR) readings (should be ≥6 dB) and
loop attenuation (should be <35 dB @196 KHz).
3After the system powers up, alarm conditions that exist are reported on the display.
(The H2TU-C reports alarms if no DS1 signal is applied.)
PROVISIONING
After installation, perform these basic provisioning tasks from the HiGain HDSL2 logon
screen. Refer to the onscreen Help menu for navigational aids.
1Connect a maintenance terminal tothe 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 ADC Options. (Configuration options can also be set
from the front panel using the MODE and SEL buttons. See the “Front-Panel
Read-Only Settings Using MODE” table inside.)
Continued
When installing an H2TU-C, wear an antistatic wrist strap.
Avoid touching components on the circuit board.
CTRL R
Þ
S
E
L
M
O
D
E
SETUP
STATUS
R
S
2
3
2
O
U
T
I
N
B
R
G
B
R
G
L
I
N
E
L
I
N
E
H
2
T
U
*
C
3
1
9
L
4E
HDSL2
HiGain
DCE
H2TU-C-319 LIST 4E
LINE UNIT
Product Catalog: H2TU-C-319-L4E
CLEI: VACHYVYG
Document: LTPH-QI-1078-02, Issue 2
´,-Q¶5j¨
1213495
January 9, 2002
QUICK INSTALLATION

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-319 LIST 4E
The H2TU-C-319 List 4E functions as the Central Office (CO) end of a repeaterless T1
transmissionsystem when connected to aHiGain HDSL2 remote unit (H2TU-R). Settingnew
standards forinteroperability 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 LED, craft port, and
four-character status display
•Maintenance screens for inventory, provisioning,
troubleshooting, and performance monitoring
•Loss of Signal/Alarm Indication Signal (LOS/AIS)
payload alarm option
•Grounded loop detection
•Report menu option for downloading status and
performance monitoring data to a file
•Ultra-low wander
•Payload (PL) or HiGain (HG) loopback source
identification
•Bipolar Violation Transparency (BPVT) option
•Performance Report Messaging (SPRM and NPRM)
•Bit Error Rate (BER) alarm option
•Power Back Off Network (PBON) and Power
Back Off Customer (PBOC) for configuring
HDSL2 transmit power levels
•Digital Data Service (DDS) latching loopback
option
•Supports the in-band 100 loopdown and
100000 loopup command when SmartJack
loopback (LPBK) option is enabled
•Sources sealing current when connected to
an H2TU-R-402 List 5E or higher
•Supports automatic protection switching
(APS) (a)
•Metalic Test Access
(a) For more information about APS, see the PSC-606 Protection Switching Controller technical practice,
document LTPH-TP-1006-xx.
Operating Temperature -40°F to +149°F (-40°C to +65°C)
Operating Humidity 5% to 95% non-condensing
HDSL2 Span Voltage 0, -180 ±5 Vdc
Mounting 3192 high-density shelf
HDSL2 Line Rate 1.552 Mbps Overlapped Pulse Amplitude Modulation Transmission with OPTIS
HDSL2 Output +16.8 dBm ±0.5 dB, 135Ω(0-450 kHz) at CO side
+16.5 dBm ±0.5 dB, 135Ω(0-350 kHz) at remote side
Maximum Loop Attenuation 35 dB at 196 kHz, 135Ω
DSX-1 Line Rate 1.544 Mbps ±200 bps
DSX-1 Line Format Alternate Mark Inversion (AMI) or Bipolar with 8-zero Substitution (B8ZS)
DSX-1 Frame Format Extended SuperFrame (ESF), SuperFrame (SF), or Unframed (UNFR)
DSX-1 Pulse Output 6 V pk-pk, pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure the proper installation of the unit to the enclosure, align the H2TU-C with the
enclosure slot guides and slide the unit into the chassis until the unit is firmly seated in
the backplane.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four-character display illuminates and reports status
messages.
If the H2TU-C is unable to communicate with the H2TU-R, it displays various alarmand
status messages.
If the H2TU-C is able to communicate with the H2TU-R, the following occurs:
1The Status LED flashes red while acquiring the H2TU-R and turns a steady green
when the entire system is operating with no alarms. (The DS1 signal must be
present.)
2The four-character display reports margin (SNR) readings (should be ≥6 dB) and
loop attenuation (should be <35 dB @196 KHz).
3After the system powers up, alarm conditions that exist are reported on the display.
(The H2TU-C reports alarms if no DS1 signal is applied.)
PROVISIONING
After installation, perform these basic provisioning tasks from the HiGain HDSL2 logon
screen. Refer to the onscreen Help menu for navigational aids.
1Connect a maintenance terminal tothe 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 ADC Options. (Configuration options can also be set
from the front panel using the MODE and SEL buttons. See the “Front-Panel
Read-Only Settings Using MODE” table inside.)
Continued
When installing an H2TU-C, wear an antistatic wrist strap.
Avoid touching components on the circuit board.
CTRL R
Þ
S
E
L
M
O
D
E
SETUP
STATUS
R
S
2
3
2
O
U
T
I
N
B
R
G
B
R
G
L
I
N
E
L
I
N
E
H
2
T
U
*
C
3
1
9
L
4E
HDSL2
HiGain
DCE
H2TU-C-319 LIST 4E
LINE UNIT
Product Catalog: H2TU-C-319-L4E
CLEI: VACHYVYG
Document: LTPH-QI-1078-02, Issue 2
´,-Q¶5j¨
1213495
January 9, 2002
QUICK INSTALLATION

PROVISIONING (CONTINUED)
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. LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance terminal screen or use the MODE and LBK pushbuttons. The inband codes below (except COLB and RULB) can also be sent by a test set. Copies of this publication or the technical practice (LTPH-UM-1049-xx) can be downloaded from the ADC website at www.adc.com. To order a hard copy, please contact your sales representative.
GNLB Loopback Commands
Loopback Inband Code Description NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C. NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R. 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 button initiates an Alarm Cutoff (ACO) message.
Message Description PWR FEED SHRT (b)
(b) Message displays repeatedly as long as the alarm condition exists and is not included in the priority order.
A short between the Tip and Ring of the HDSL2 pair.
PWR FEED GND (b) The HDSL2 loop is grounded. PWR FEED OPEN (b) A line-power open condition. LOSW The HDSL2 loop has lost synchronization. The span closest to the network has highest
priority.
MTA Indicates that the H2TU-C is in a metallic test access state. 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 (c)
(c) Does not activate the alarm relay access pin H.
Line Alarm Indication Signal.
RAIS (c) Remote Alarm Indication Signal. TRCI (c) An RAI alarm (yellow LED) from the Customer Premises Equipment (CPE) with an
error-free signal from the line unit or network.
RRAI(c) An RAI alarm (yellow LED) from the CPE with errors from the line unit or network. xxx-DBER (c) A system DS1 Bit Error Rate (BER) alarm. (xxx denotes either TUC or TUR.)
PRMF (c) H2TU-R Performance Report Messaging BER threshold exceeded at far end.
PRMN (c) 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-319 List 4E 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
Message Description (normal operating messages in bold) A=xx The loop attenuation of the longest (maximum loss) span, measured in dB. ACQ The multiplexers of the H2TU-C and H2TU-R are trying to establish synchronization. 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 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 span power is turned on and the loop is not grounded or shorted. SIG The transceiversof the H2TU-C and H2TU-R are trying to establish contact with each other
on Span 1 of the HDSL2 loop.
Front-Panel Read-Only Settings Using MODE (a)
(a) Front-panel codes scroll in the order listed. The configured selections follow each code.
Message Description (default selections in bold) VER x.xx Software version number of the H2TU-C-319. LIST xx List number of the H2TU-C-319. FRM xxxx Frame pattern received from the DSX-1 (SF, ESF, UNFR). CODE xxxx Line code (AMI or B8ZS). LATT xx Loop Attenuation threshold setting (38). MARG xx Margin threshold setting (4). EQL Indicates DSX-1 Equalizer setting: 0(0 to 132 ft.), 133 (133 to 265 ft.), 266 (266 to 398 ft.),
399 (399 to 532 ft.), or 533 (533 to 655 ft.).
RLBO Indicates H2TU-R line buildout setting: 0 dB, -7.5 dB, or -15 dB. LPBK SmartJack loopback commands enabled (ENA) or disabled (DIS). SPLB xxxx System configured for generic (GNLB) or special inband loopback commands (A1LB, A2LB, A3LB, A4LB,
A5LB).
PWRF HDSL2 line power disabled (OFF) or -180 Vdc (ON). HBER 1E-6 or 1E-7 = indicates HDSL2 BER alarm threshold setting. NONE = no generation of a system
alarm due to BER.
DBER 24-hour DSX-1 BER alarm threshold enabled (ENA) or disabled (DIS). LBTO Loopback timeout = NONE, 20, 60, 120 minutes, 8-hour, 24-hour. DS1 DSX-1 line code = Bipolar with 8-Zero Substitution (B8ZS), Alternate Mark Inversion (AMI). CONV H2TU-R frame format conversion = OFF (framing determined by the DS1 FRMG option),
ACON (autodetection of framing and potential frame conversion at the H2TU-R), or FCON (autodetection of framing and forced frame format conversion at the H2TU-R).
FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode), RDA Alarm indications due to remote DS1 LOS at H2TU-R input are enabled (ENA) or disabled (DIS). ALMP Alarm pattern = Alarm Indication Signal (AIS) or Loss of Signal (LOS). BPVT Bipolar Violation Transparency (BPVT) enabled (ENA) or disabled (DIS). NLBP H2TU-R transmits either AIS or LOS towards CI for any network loopback. TLOS Logic loopback at the H2TU-R is either enabled (ENA) or disabled (DIS) when an LOS occurs at its
DS1 input.
PRM Performance Report Messaging = OFF (no enhanced Performance Report Messaging), SPRM
(Supplemental PRM), NPRM (Network PRM), AUTO (H2TU-R generates both SPRMs and NPRMs whenever possible).
NAIS If ALMP is set to AIS, indicates which pattern is sent to the network when a remote LOS or AIS
occurs. CI = AIS-CI sent to the network; AIS = AIS sent to the network.
ROVR Conversion of an ESF DS1 payload from the network with an embedded RAI pattern to an SF-RAI
pattern toward the CI at the H2TU-R is enabled (ENA) or disabled (DIS). CONV option must be set to FCON or ACON.
RACI Conversion of a DS1 SF-RAI signal (yellow alarm) received by the H2TU-R to an SF-RAI-CI signal
toward the network is enabled (ENA) or disabled (DIS).
PBOC Indicates the power output levels of the H2TU-R customer unit toward the network. Default (DEF)
or enhanced (ENH).
PBON Indicates the power output levels of the H2TU-C network unit toward the customer. Default (DEF)
or enhanced (ENH).
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 or B8ZS). LIST xx List number of the H2TU-C.
FRM xxxx Frame pattern received from the
DSX-1 (SF, ESF, or UNFR). MARG xx Margin threshold (0 to 15 dB).
Default is 5.
LATT xx Loop attenuation threshold setting
(0 to 40 dB). Default is 32.VER x.xx Software version number.
Four-character display
System option pushbuttons
DSX-1 test access jacks
List number
Status LED
Displays status, provisioning, and
alarm messages. See table below
for a list of message descriptions.
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.
LINE Provides splitting jack access to
(IN) and from (OUT) the HDSL2 span at the DSX-1 interface.
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:VT100
S E
L
M
O
D
E
O
U
T
I
N
B
R
G
B
R
G
L
I
N
E
L
I
N
E
H
2
T
U
*
C
3 1 9
R S 2 3 2
SETUP
STATUS
Front panel
A Customer Remote (CREM) loopback or a Network Local (NLOC) loopback is in effect.
Green LED Normal operation.
HDSL2 acquisition or system alarm.
Red LED Fuse alarm. Flashing Red LED Yellow LED FlashingYellow LED System is in Armed (ARM)
mode.
Off Line power is off.
HiGain HDSL2
L
DCE
Use the MODE and pushbuttons to review all system parameters, including user-configured settings, and to activate loopbacks.
SEL
To display system parameters: Press the MODE pushbutton for at least 3 seconds to place the front-panel display in Scroll mode.When it has finished scrolling through all the system parameters, the display returns to its normal mode. To initiate a dual loopback: Press the SEL pushbutton for more than 3 seconds to activate both the NLOC and CREM loopbacks.If a loopback condition already exists, this will loop down all existing loopbacks.Press the LBK pushbutton again for more than 3 seconds to reactivate the dual loopback. To initiate a manual loopback:
1Press both the MODE and SEL pushbuttons for at least
5 seconds.The following message appears:
2 Press the SEL pushbutton to activate the NLOC loopback
or press MODE to advance to the next loopback selection.
MAN LBK NLO?
Card handle
(CLEI code and ECI bar code label on outside of handle)
3
4 5
6
C D
E
F
H7
8
J
9
K
10
L
GND
HDSL2SpanTip HDSL2SpanRing
System alarm Management bus
Frame ground -48V BAT
Fusealarm*
Factory useonly
1
A
(IN)DSX-1Tip DSX-1Ring(IN)
2
B
(OUT)DSX-1 Tip1 DSX-1Ring1(OUT)
* Fuse alarm is normally floating
and at -48 Vdc when activated.
1
19
(IN)DSX-1Tip DSX-1Ring(IN)
2
20
(OUT)DSX-1 Tip1 DSX-1Ring1(OUT)
13
14
31
32
33 15
16
34
17
35
18
36
{
MUXPort
{
AUXPort
{
MUXPort
{
AUXPort
(OUT)MTAF Tip
(IN) TipMTAF
{
Metallic MTAF (OUT)Ring
MTAF Ring(IN)
{
Access
(TB6) Metallic Access
(TB6)
Segment2
Segment1
Segment3
Card-edge connector
4E

PROVISIONING (CONTINUED)
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.
LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance terminal screen or use the MODE
and LBK pushbuttons. The inband codes below (except COLB and RULB) can also be sent
by a test set.
Copies of this publication or the technical practice (LTPH-UM-1049-xx) can be
downloaded from the ADC website at www.adc.com. To order a hard copy, please contact
your sales representative.
GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C.
NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R.
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 button initiates an Alarm Cutoff (ACO) message.
Message Description
PWR FEED SHRT (b)
(b) Message displays repeatedly as long as the alarm condition exists and is not included in the priority order.
A short between the Tip and Ring of the HDSL2 pair.
PWR FEED GND (b) The HDSL2 loop is grounded.
PWR FEED OPEN (b) A line-power open condition.
LOSW The HDSL2 loop has lost synchronization. The span closest to the network has highest
priority.
MTA Indicates that the H2TU-C is in a metallic test access state.
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 (c)
(c) Does not activate the alarm relay access pin H.
Line Alarm Indication Signal.
RAIS (c) Remote Alarm Indication Signal.
TRCI (c) An RAI alarm (yellow LED) from the Customer Premises Equipment (CPE) with an
error-free signal from the line unit or network.
RRAI(c) An RAI alarm (yellow LED) from the CPE with errors from the line unit or network.
xxx-DBER (c) A system DS1 Bit Error Rate (BER) alarm. (xxx denotes either TUC or TUR.)
PRMF (c) H2TU-R Performance Report Messaging BER threshold exceeded at far end.
PRMN (c) 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-319 List 4E 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
Message Description (normal operating messages in bold)
A=xx The loop attenuation of the longest (maximum loss) span, measured in dB.
ACQ The multiplexers of the H2TU-C and H2TU-R are trying to establish synchronization.
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 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 span power is turned on and the loop is not grounded or shorted.
SIG The transceiversof the H2TU-C and H2TU-R are trying to establish contact with each other
on Span 1 of the HDSL2 loop.
Front-Panel Read-Only Settings Using MODE (a)
(a) Front-panel codes scroll in the order listed. The configured selections follow each code.
Message Description (default selections in bold)
VER x.xx Software version number of the H2TU-C-319.
LIST xx List number of the H2TU-C-319.
FRM xxxx Frame pattern received from the DSX-1 (SF, ESF, UNFR).
CODE xxxx Line code (AMI or B8ZS).
LATT xx Loop Attenuation threshold setting (38).
MARG xx Margin threshold setting (4).
EQL Indicates DSX-1 Equalizer setting: 0(0 to 132 ft.), 133 (133 to 265 ft.), 266 (266 to 398 ft.),
399 (399 to 532 ft.), or 533 (533 to 655 ft.).
RLBO Indicates H2TU-R line buildout setting: 0 dB, -7.5 dB, or -15 dB.
LPBK SmartJack loopback commands enabled (ENA) or disabled (DIS).
SPLB xxxx System configured for generic (GNLB) or special inband loopback commands (A1LB, A2LB, A3LB, A4LB,
A5LB).
PWRF HDSL2 line power disabled (OFF) or -180 Vdc (ON).
HBER 1E-6 or 1E-7 = indicates HDSL2 BER alarm threshold setting. NONE = no generation of a system
alarm due to BER.
DBER 24-hour DSX-1 BER alarm threshold enabled (ENA) or disabled (DIS).
LBTO Loopback timeout = NONE, 20, 60, 120 minutes, 8-hour, 24-hour.
DS1 DSX-1 line code = Bipolar with 8-Zero Substitution (B8ZS), Alternate Mark Inversion (AMI).
CONV H2TU-R frame format conversion = OFF (framing determined by the DS1 FRMG option),
ACON (autodetection of framing and potential frame conversion at the H2TU-R), or
FCON (autodetection of framing and forced frame format conversion at the H2TU-R).
FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode),
RDA Alarm indications due to remote DS1 LOS at H2TU-R input are enabled (ENA) or disabled (DIS).
ALMP Alarm pattern = Alarm Indication Signal (AIS) or Loss of Signal (LOS).
BPVT Bipolar Violation Transparency (BPVT) enabled (ENA) or disabled (DIS).
NLBP H2TU-R transmits either AIS or LOS towards CI for any network loopback.
TLOS Logic loopback at the H2TU-R is either enabled (ENA) or disabled (DIS) when an LOS occurs at its
DS1 input.
PRM Performance Report Messaging = OFF (no enhanced Performance Report Messaging), SPRM
(Supplemental PRM), NPRM (Network PRM), AUTO (H2TU-R generates both SPRMs and NPRMs
whenever possible).
NAIS If ALMP is set to AIS, indicates which pattern is sent to the network when a remote LOS or AIS
occurs. CI = AIS-CI sent to the network; AIS = AIS sent to the network.
ROVR Conversion of an ESF DS1 payload from the network with an embedded RAI pattern to an SF-RAI
pattern toward the CI at the H2TU-R is enabled (ENA) or disabled (DIS). CONV option must be set
to FCON or ACON.
RACI Conversion of a DS1 SF-RAI signal (yellow alarm) received by the H2TU-R to an SF-RAI-CI signal
toward the network is enabled (ENA) or disabled (DIS).
PBOC Indicates the power output levels of the H2TU-R customer unit toward the network. Default (DEF)
or enhanced (ENH).
PBON Indicates the power output levels of the H2TU-C network unit toward the customer. Default (DEF)
or enhanced (ENH).
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 or B8ZS). LIST xx List number of the H2TU-C.
FRM xxxx Frame pattern received from the
DSX-1 (SF, ESF, or UNFR). MARG xx Margin threshold (0 to 15 dB). Default is 5.
LATT xx Loop attenuation threshold setting
(0 to 40 dB). Default is 32.VER x.xx Software version number.
Four-character display
System option pushbuttons
DSX-1 test access jacks
List number
Status LED
Displays status, provisioning, and
alarm messages. See table below
for a list of message descriptions.
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.
LINE Provides splitting jack access to
(IN) and from (OUT) the HDSL2 span
at the DSX-1 interface.
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:VT100
S
E
L
M
O
D
E
O
U
T
I
N
B
R
G
B
R
G
L
I
N
E
L
I
N
E
H
2
T
U
*
C
3
1
9
R
S
2
3
2
SETUP
STATUS
Front panel
A Customer Remote (CREM)
loopback or a Network Local
(NLOC) loopback is in effect.
Green LED Normal operation.
HDSL2 acquisition or
system alarm.
Red LED Fuse alarm.
Flashing Red LED
Yellow LED
FlashingYellow LED System is in Armed (ARM)
mode.
Off Line power is off.
HiGain
HDSL2
L
DCE
Use the MODE and pushbuttons to review all system
parameters, including user-configured settings, and to
activate loopbacks.
SEL
To display system parameters: Press the MODE pushbutton
for at least 3 seconds to place the front-panel display in Scroll
mode.When it has finished scrolling through all the system
parameters, the display returns to its normal mode.
To initiate a dual loopback: Press the SEL pushbutton for
more than 3 seconds to activate both the NLOC and CREM
loopbacks.If a loopback condition already exists, this will
loop down all existing loopbacks.Press the LBK pushbutton
again for more than 3 seconds to reactivate the dual loopback.
To initiate a manual loopback:
1Press both the MODE and SEL pushbuttons for at least
5 seconds.The following message appears:
2 Press the SEL pushbutton to activate the NLOC loopback
or press MODE to advance to the next loopback selection.
MAN LBK NLO?
Card handle
(CLEI code and ECI bar code label on outside of handle)
3
4
5
6
C
D
E
F
H7
8
J
9
K
10
L
GND
HDSL2SpanTip HDSL2SpanRing
System alarm Management bus
Frame ground -48V BAT
Fusealarm*
Factory useonly
1
A
(IN)DSX-1Tip DSX-1Ring(IN)
2
B
(OUT)DSX-1 Tip1 DSX-1Ring1(OUT)
* Fuse alarm is normally floating
and at -48 Vdc when activated.
1
19
(IN)DSX-1Tip DSX-1Ring(IN)
2
20
(OUT)DSX-1 Tip1 DSX-1Ring1(OUT)
13
14
31
32
33 15
16
34
17
35
18
36
{
MUXPort
{
AUXPort
{
MUXPort
{
AUXPort
(OUT)MTAF Tip
(IN) TipMTAF
{
Metallic MTAF (OUT)Ring
MTAF Ring(IN)
{
Access
(TB6) Metallic Access (TB6)
Segment2
Segment1
Segment3
Card-edge connector
4E

PROVISIONING (CONTINUED)
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.
LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance terminal screen or use the MODE
and LBK pushbuttons. The inband codes below (except COLB and RULB) can also be sent
by a test set.
Copies of this publication or the technical practice (LTPH-UM-1049-xx) can be
downloaded from the ADC website at www.adc.com. To order a hard copy, please contact
your sales representative.
GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C.
NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R.
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 button initiates an Alarm Cutoff (ACO) message.
Message Description
PWR FEED SHRT (b)
(b) Message displays repeatedly as long as the alarm condition exists and is not included in the priority order.
A short between the Tip and Ring of the HDSL2 pair.
PWR FEED GND (b) The HDSL2 loop is grounded.
PWR FEED OPEN (b) A line-power open condition.
LOSW The HDSL2 loop has lost synchronization. The span closest to the network has highest
priority.
MTA Indicates that the H2TU-C is in a metallic test access state.
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 (c)
(c) Does not activate the alarm relay access pin H.
Line Alarm Indication Signal.
RAIS (c) Remote Alarm Indication Signal.
TRCI (c) An RAI alarm (yellow LED) from the Customer Premises Equipment (CPE) with an
error-free signal from the line unit or network.
RRAI(c) An RAI alarm (yellow LED) from the CPE with errors from the line unit or network.
xxx-DBER (c) A system DS1 Bit Error Rate (BER) alarm. (xxx denotes either TUC or TUR.)
PRMF (c) H2TU-R Performance Report Messaging BER threshold exceeded at far end.
PRMN (c) 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-319 List 4E 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
Message Description (normal operating messages in bold)
A=xx The loop attenuation of the longest (maximum loss) span, measured in dB.
ACQ The multiplexers of the H2TU-C and H2TU-R are trying to establish synchronization.
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 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 span power is turned on and the loop is not grounded or shorted.
SIG The transceiversof the H2TU-C and H2TU-R are trying to establish contact with each other
on Span 1 of the HDSL2 loop.
Front-Panel Read-Only Settings Using MODE (a)
(a) Front-panel codes scroll in the order listed. The configured selections follow each code.
Message Description (default selections in bold)
VER x.xx Software version number of the H2TU-C-319.
LIST xx List number of the H2TU-C-319.
FRM xxxx Frame pattern received from the DSX-1 (SF, ESF, UNFR).
CODE xxxx Line code (AMI or B8ZS).
LATT xx Loop Attenuation threshold setting (38).
MARG xx Margin threshold setting (4).
EQL Indicates DSX-1 Equalizer setting: 0(0 to 132 ft.), 133 (133 to 265 ft.), 266 (266 to 398 ft.),
399 (399 to 532 ft.), or 533 (533 to 655 ft.).
RLBO Indicates H2TU-R line buildout setting: 0 dB, -7.5 dB, or -15 dB.
LPBK SmartJack loopback commands enabled (ENA) or disabled (DIS).
SPLB xxxx System configured for generic (GNLB) or special inband loopback commands (A1LB, A2LB, A3LB, A4LB,
A5LB).
PWRF HDSL2 line power disabled (OFF) or -180 Vdc (ON).
HBER 1E-6 or 1E-7 = indicates HDSL2 BER alarm threshold setting. NONE = no generation of a system
alarm due to BER.
DBER 24-hour DSX-1 BER alarm threshold enabled (ENA) or disabled (DIS).
LBTO Loopback timeout = NONE, 20, 60, 120 minutes, 8-hour, 24-hour.
DS1 DSX-1 line code = Bipolar with 8-Zero Substitution (B8ZS), Alternate Mark Inversion (AMI).
CONV H2TU-R frame format conversion = OFF (framing determined by the DS1 FRMG option),
ACON (autodetection of framing and potential frame conversion at the H2TU-R), or
FCON (autodetection of framing and forced frame format conversion at the H2TU-R).
FRMG DS1 frame formatting = AUTO (auto framing mode) or UNFR (unframed mode),
RDA Alarm indications due to remote DS1 LOS at H2TU-R input are enabled (ENA) or disabled (DIS).
ALMP Alarm pattern = Alarm Indication Signal (AIS) or Loss of Signal (LOS).
BPVT Bipolar Violation Transparency (BPVT) enabled (ENA) or disabled (DIS).
NLBP H2TU-R transmits either AIS or LOS towards CI for any network loopback.
TLOS Logic loopback at the H2TU-R is either enabled (ENA) or disabled (DIS) when an LOS occurs at its
DS1 input.
PRM Performance Report Messaging = OFF (no enhanced Performance Report Messaging), SPRM
(Supplemental PRM), NPRM (Network PRM), AUTO (H2TU-R generates both SPRMs and NPRMs
whenever possible).
NAIS If ALMP is set to AIS, indicates which pattern is sent to the network when a remote LOS or AIS
occurs. CI = AIS-CI sent to the network; AIS = AIS sent to the network.
ROVR Conversion of an ESF DS1 payload from the network with an embedded RAI pattern to an SF-RAI
pattern toward the CI at the H2TU-R is enabled (ENA) or disabled (DIS). CONV option must be set
to FCON or ACON.
RACI Conversion of a DS1 SF-RAI signal (yellow alarm) received by the H2TU-R to an SF-RAI-CI signal
toward the network is enabled (ENA) or disabled (DIS).
PBOC Indicates the power output levels of the H2TU-R customer unit toward the network. Default (DEF)
or enhanced (ENH).
PBON Indicates the power output levels of the H2TU-C network unit toward the customer. Default (DEF)
or enhanced (ENH).
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 or B8ZS). LIST xx List number of the H2TU-C.
FRM xxxx Frame pattern received from the
DSX-1 (SF, ESF, or UNFR). MARG xx Margin threshold (0 to 15 dB). Default is 5.
LATT xx Loop attenuation threshold setting
(0 to 40 dB). Default is 32.VER x.xx Software version number.
Four-character display
System option pushbuttons
DSX-1 test access jacks
List number
Status LED
Displays status, provisioning, and
alarm messages. See table below
for a list of message descriptions.
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.
LINE Provides splitting jack access to
(IN) and from (OUT) the HDSL2 span
at the DSX-1 interface.
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:VT100
S
E
L
M
O
D
E
O
U
T
I
N
B
R
G
B
R
G
L
I
N
E
L
I
N
E
H
2
T
U
*
C
3
1
9
R
S
2
3
2
SETUP
STATUS
Front panel
A Customer Remote (CREM)
loopback or a Network Local
(NLOC) loopback is in effect.
Green LED Normal operation.
HDSL2 acquisition or
system alarm.
Red LED Fuse alarm.
Flashing Red LED
Yellow LED
FlashingYellow LED System is in Armed (ARM)
mode.
Off Line power is off.
HiGain
HDSL2
L
DCE
Use the MODE and pushbuttons to review all system
parameters, including user-configured settings, and to
activate loopbacks.
SEL
To display system parameters: Press the MODE pushbutton
for at least 3 seconds to place the front-panel display in Scroll
mode.When it has finished scrolling through all the system
parameters, the display returns to its normal mode.
To initiate a dual loopback: Press the SEL pushbutton for
more than 3 seconds to activate both the NLOC and CREM
loopbacks.If a loopback condition already exists, this will
loop down all existing loopbacks.Press the LBK pushbutton
again for more than 3 seconds to reactivate the dual loopback.
To initiate a manual loopback:
1Press both the MODE and SEL pushbuttons for at least
5 seconds.The following message appears:
2 Press the SEL pushbutton to activate the NLOC loopback
or press MODE to advance to the next loopback selection.
MAN LBK NLO?
Card handle
(CLEI code and ECI bar code label on outside of handle)
3
4
5
6
C
D
E
F
H7
8
J
9
K
10
L
GND
HDSL2SpanTip HDSL2SpanRing
System alarm Management bus
Frame ground -48V BAT
Fusealarm*
Factory useonly
1
A
(IN)DSX-1Tip DSX-1Ring(IN)
2
B
(OUT)DSX-1 Tip1 DSX-1Ring1(OUT)
* Fuse alarm is normally floating
and at -48 Vdc when activated.
1
19
(IN)DSX-1Tip DSX-1Ring(IN)
2
20
(OUT)DSX-1 Tip1 DSX-1Ring1(OUT)
13
14
31
32
33 15
16
34
17
35
18
36
{
MUXPort
{
AUXPort
{
MUXPort
{
AUXPort
(OUT)MTAF Tip
(IN) TipMTAF
{
Metallic MTAF (OUT)Ring
MTAF Ring(IN)
{
Access
(TB6) Metallic Access (TB6)
Segment2
Segment1
Segment3
Card-edge connector
4E

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-319 LIST 4E
The H2TU-C-319 List 4E functions as the Central Office (CO) end of a repeaterless T1
transmissionsystem when connected to aHiGain HDSL2 remote unit (H2TU-R). Settingnew
standards forinteroperability 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 LED, craft port, and
four-character status display
•Maintenance screens for inventory, provisioning,
troubleshooting, and performance monitoring
•Loss of Signal/Alarm Indication Signal (LOS/AIS)
payload alarm option
•Grounded loop detection
•Report menu option for downloading status and
performance monitoring data to a file
•Ultra-low wander
•Payload (PL) or HiGain (HG) loopback source
identification
•Bipolar Violation Transparency (BPVT) option
•Performance Report Messaging (SPRM and NPRM)
•Bit Error Rate (BER) alarm option
•Power Back Off Network (PBON) and Power
Back Off Customer (PBOC) for configuring
HDSL2 transmit power levels
•Digital Data Service (DDS) latching loopback
option
•Supports the in-band 100 loopdown and
100000 loopup command when SmartJack
loopback (LPBK) option is enabled
•Sources sealing current when connected to
an H2TU-R-402 List 5E or higher
•Supports automatic protection switching
(APS) (a)
•Metalic Test Access
(a) For more information about APS, see the PSC-606 Protection Switching Controller technical practice,
document LTPH-TP-1006-xx.
Operating Temperature -40°F to +149°F (-40°C to +65°C)
Operating Humidity 5% to 95% non-condensing
HDSL2 Span Voltage 0, -180 ±5 Vdc
Mounting 3192 high-density shelf
HDSL2 Line Rate 1.552 Mbps Overlapped Pulse Amplitude Modulation Transmission with OPTIS
HDSL2 Output +16.8 dBm ±0.5 dB, 135Ω(0-450 kHz) at CO side
+16.5 dBm ±0.5 dB, 135Ω(0-350 kHz) at remote side
Maximum Loop Attenuation 35 dB at 196 kHz, 135Ω
DSX-1 Line Rate 1.544 Mbps ±200 bps
DSX-1 Line Format Alternate Mark Inversion (AMI) or Bipolar with 8-zero Substitution (B8ZS)
DSX-1 Frame Format Extended SuperFrame (ESF), SuperFrame (SF), or Unframed (UNFR)
DSX-1 Pulse Output 6 V pk-pk, pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure the proper installation of the unit to the enclosure, align the H2TU-C with the
enclosure slot guides and slide the unit into the chassis until the unit is firmly seated in
the backplane.
POWER-UP SEQUENCE
When the H2TU-C powers up, the four-character display illuminates and reports status
messages.
If the H2TU-C is unable to communicate with the H2TU-R, it displays various alarmand
status messages.
If the H2TU-C is able to communicate with the H2TU-R, the following occurs:
1The Status LED flashes red while acquiring the H2TU-R and turns a steady green
when the entire system is operating with no alarms. (The DS1 signal must be
present.)
2The four-character display reports margin (SNR) readings (should be ≥6 dB) and
loop attenuation (should be <35 dB @196 KHz).
3After the system powers up, alarm conditions that exist are reported on the display.
(The H2TU-C reports alarms if no DS1 signal is applied.)
PROVISIONING
After installation, perform these basic provisioning tasks from the HiGain HDSL2 logon
screen. Refer to the onscreen Help menu for navigational aids.
1Connect a maintenance terminal tothe 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 ADC Options. (Configuration options can also be set
from the front panel using the MODE and SEL buttons. See the “Front-Panel
Read-Only Settings Using MODE” table inside.)
Continued
When installing an H2TU-C, wear an antistatic wrist strap.
Avoid touching components on the circuit board.
CTRL R
Þ
S
E
L
M
O
D
E
SETUP
STATUS
R
S
2
3
2
O
U
T
I
N
B
R
G
B
R
G
L
I
N
E
L
I
N
E
H
2
T
U
*
C
3
1
9
L
4E
HDSL2
HiGain
DCE
H2TU-C-319 LIST 4E
LINE UNIT
Product Catalog: H2TU-C-319-L4E
CLEI: VACHYVYG
Document: LTPH-QI-1078-02, Issue 2
´,-Q¶5j¨
1213495
January 9, 2002
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