ADC HiGain HLU-C-388 List 5F 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: 714.832.9922
Fax: 714.832.9924
Technical Assistance
Tel: 800.638.0031
Tel: 714.730.3222
Fax: 714.730.2400
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
HLU-388 LIST 5F
The HiGain®Line Unit HLU-388 List 5F is the Central Office (CO) side of a
repeaterless T1 transmission system. When used in conjunction with a HiGain Remote
Unit (HRU), the system provides 1.544 Mbps transmission on two unconditioned
copper pairs over the full Carrier Service Area (CSA) range. The CSA includes loops
up to 12,000 feet of 24 American Wire Gauge (AWG) or 9,000 feet of 26 AWG wire,
including bridged taps. This line unit can be used in applications with or without
HiGain Doubler Units (HDUs).
FEATURES
SPECIFICATIONS
•Front panel status LED, craft port, and
four-character status display •Payload (PL) orHiGain (HG) loopback source
identification
•Ultra-low wander •Reduced power consumption
•Five-span range with four doublers
(60 kft, 24 AWG) •Low line-power option (-140 V) for circuits
with a single doubler
•Selectable Power Feed modes •Bit Error Rate (BER) alarm options
•Loss of Signal (LOS)/Alarm Indicator
Signal (AIS) payload alarm option •Additional screens for inventory and
troubleshooting
•Supports Pulsecom HDSL 62/64 applications •Grounded loop detection
•B8ZS default line code option •Unframed (UNFR) default framing option
•Bipolar Violation Transparency (BPVT) option
Operating Temperature -40 °F to 149 °F (-40 °C to + 65°C)
Operating Humidity 5% to 95% non-condensing
HDSL Span Voltage -140 ±112 Vdc
Mounting DDM+ high-density shelf
HDSL Line Code 784 kbps 2B1Q
HDSL Output +13.5 dBm ±0.5 dB, 135 Ω
Maximum Provisioning Loss 35 dB at 196 kHz, 135 Ω
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI) or Bipolar with
8-Zero Substitution (B8ZS)
DS1 Frame Format Extended SuperFrame (ESF), SuperFrame (SF),
or Unframed (UNFR)
DSX-1 Pulse Output 6 V pk-pk, pre-equalized for 0 to 655 feet of ABAM
cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure proper installation of the HLU-388 List 5F:
1Lift up the entire front panel and align the HLU-388 List 5F with the shelf rails.
2Slide the unit in and press the front panel down to secure.
POWER-UP SEQUENCE
When the HLU powers up, the four-character display illuminates and reports status
messages.
If the HLU is not communicating with the next span device, the following occurs:
1Alarm and diagnostic messages are displayed (see the Front Panel Alarm
Messages and Front Panel Diagnostic Messages tables inside), followed by the
SELF TEST message.
2The Status LED turns yellow, indicating it has entered self-test mode.
If the HLU is communicating with the next span device, the following occurs:
1The 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.
2The four-character display reports margin (signal-to-noise ratio) readings and
insertion loss.
3If the status LED is not solid green, the display reports alarm conditions (see the
Front Panel Alarm Messages table inside).
PROVISIONING
1Access the Maintenance Terminal screens by pressing several times.
aSet the date and time (select Set Clock from the Maintenance Terminal
Main Menu).
bSet the circuit IDs (select View System Inventory from the Maintenance
Terminal Main Menu).
2Access the Systems Settings screen from the Maintenance Terminal Main Menu
to change the default settings of any system parameters.
3Access the View Troubleshooting screen to view a graphical analysis of any
potential system problems.
4When the HLU has been successfully installed and provisioned, clear Span
Status, Performance Data, Performance History, and Alarm History screens to
ensure accurate data and alarm reporting.
Continued
SPACEBAR
Þ
QUICK INSTALLATION
HLU-C-388 LIST 5F
LINE UNIT
MODE SEL
M
A
R
G
I
N
(dB)
SETUP
STATUS
RS
232
HLU 388
HG HDI AIN
L 5F
Product Catalog: HLU-C-388 List 5F
CLEI: T1L4FYLB
Document: 350-388-156-02
´,.G¶7X¨
1214397
June 29, 2000
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: 714.832.9922
Fax: 714.832.9924
Technical Assistance
Tel: 800.638.0031
Tel: 714.730.3222
Fax: 714.730.2400
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
HLU-388 LIST 5F
The HiGain®Line Unit HLU-388 List 5F is the Central Office (CO) side of a
repeaterless T1 transmission system. When used in conjunction with a HiGain Remote
Unit (HRU), the system provides 1.544 Mbps transmission on two unconditioned
copper pairs over the full Carrier Service Area (CSA) range. The CSA includes loops
up to 12,000 feet of 24 American Wire Gauge (AWG) or 9,000 feet of 26 AWG wire,
including bridged taps. This line unit can be used in applications with or without
HiGain Doubler Units (HDUs).
FEATURES
SPECIFICATIONS
•Front panel status LED, craft port, and
four-character status display •Payload (PL) orHiGain (HG) loopback source
identification
•Ultra-low wander •Reduced power consumption
•Five-span range with four doublers
(60 kft, 24 AWG) •Low line-power option (-140 V) for circuits
with a single doubler
•Selectable Power Feed modes •Bit Error Rate (BER) alarm options
•Loss of Signal (LOS)/Alarm Indicator
Signal (AIS) payload alarm option •Additional screens for inventory and
troubleshooting
•Supports Pulsecom HDSL 62/64 applications •Grounded loop detection
•B8ZS default line code option •Unframed (UNFR) default framing option
•Bipolar Violation Transparency (BPVT) option
Operating Temperature -40 °F to 149 °F (-40 °C to + 65°C)
Operating Humidity 5% to 95% non-condensing
HDSL Span Voltage -140 ±112 Vdc
Mounting DDM+ high-density shelf
HDSL Line Code 784 kbps 2B1Q
HDSL Output +13.5 dBm ±0.5 dB, 135 Ω
Maximum Provisioning Loss 35 dB at 196 kHz, 135 Ω
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI) or Bipolar with
8-Zero Substitution (B8ZS)
DS1 Frame Format Extended SuperFrame (ESF), SuperFrame (SF),
or Unframed (UNFR)
DSX-1 Pulse Output 6 V pk-pk, pre-equalized for 0 to 655 feet of ABAM
cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure proper installation of the HLU-388 List 5F:
1Lift up the entire front panel and align the HLU-388 List 5F with the shelf rails.
2Slide the unit in and press the front panel down to secure.
POWER-UP SEQUENCE
When the HLU powers up, the four-character display illuminates and reports status
messages.
If the HLU is not communicating with the next span device, the following occurs:
1Alarm and diagnostic messages are displayed (see the Front Panel Alarm
Messages and Front Panel Diagnostic Messages tables inside), followed by the
SELF TEST message.
2The Status LED turns yellow, indicating it has entered self-test mode.
If the HLU is communicating with the next span device, the following occurs:
1The 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.
2The four-character display reports margin (signal-to-noise ratio) readings and
insertion loss.
3If the status LED is not solid green, the display reports alarm conditions (see the
Front Panel Alarm Messages table inside).
PROVISIONING
1Access the Maintenance Terminal screens by pressing several times.
aSet the date and time (select Set Clock from the Maintenance Terminal
Main Menu).
bSet the circuit IDs (select View System Inventory from the Maintenance
Terminal Main Menu).
2Access the Systems Settings screen from the Maintenance Terminal Main Menu
to change the default settings of any system parameters.
3Access the View Troubleshooting screen to view a graphical analysis of any
potential system problems.
4When the HLU has been successfully installed and provisioned, clear Span
Status, Performance Data, Performance History, and Alarm History screens to
ensure accurate data and alarm reporting.
Continued
SPACEBAR
Þ
QUICK INSTALLATION
HLU-C-388 LIST 5F
LINE UNIT
MODE SEL
M
A
R
G
I
N
(dB)
SETUP
STATUS
RS
232
HLU 388
HG HDI AIN
L 5F
Product Catalog: HLU-C-388 List 5F
CLEI: T1L4FYLB
Document: 350-388-156-02
´,.G¶7X¨
1214397
June 29, 2000
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: 714.832.9922
Fax: 714.832.9924
Technical Assistance
Tel: 800.638.0031
Tel: 714.730.3222
Fax: 714.730.2400
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
HLU-388 LIST 5F
The HiGain®Line Unit HLU-388 List 5F is the Central Office (CO) side of a
repeaterless T1 transmission system. When used in conjunction with a HiGain Remote
Unit (HRU), the system provides 1.544 Mbps transmission on two unconditioned
copper pairs over the full Carrier Service Area (CSA) range. The CSA includes loops
up to 12,000 feet of 24 American Wire Gauge (AWG) or 9,000 feet of 26 AWG wire,
including bridged taps. This line unit can be used in applications with or without
HiGain Doubler Units (HDUs).
FEATURES
SPECIFICATIONS
•Front panel status LED, craft port, and
four-character status display •Payload (PL) orHiGain (HG) loopback source
identification
•Ultra-low wander •Reduced power consumption
•Five-span range with four doublers
(60 kft, 24 AWG) •Low line-power option (-140 V) for circuits
with a single doubler
•Selectable Power Feed modes •Bit Error Rate (BER) alarm options
•Loss of Signal (LOS)/Alarm Indicator
Signal (AIS) payload alarm option •Additional screens for inventory and
troubleshooting
•Supports Pulsecom HDSL 62/64 applications •Grounded loop detection
•B8ZS default line code option •Unframed (UNFR) default framing option
•Bipolar Violation Transparency (BPVT) option
Operating Temperature -40 °F to 149 °F (-40 °C to + 65°C)
Operating Humidity 5% to 95% non-condensing
HDSL Span Voltage -140 ±112 Vdc
Mounting DDM+ high-density shelf
HDSL Line Code 784 kbps 2B1Q
HDSL Output +13.5 dBm ±0.5 dB, 135 Ω
Maximum Provisioning Loss 35 dB at 196 kHz, 135 Ω
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI) or Bipolar with
8-Zero Substitution (B8ZS)
DS1 Frame Format Extended SuperFrame (ESF), SuperFrame (SF),
or Unframed (UNFR)
DSX-1 Pulse Output 6 V pk-pk, pre-equalized for 0 to 655 feet of ABAM
cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure proper installation of the HLU-388 List 5F:
1Lift up the entire front panel and align the HLU-388 List 5F with the shelf rails.
2Slide the unit in and press the front panel down to secure.
POWER-UP SEQUENCE
When the HLU powers up, the four-character display illuminates and reports status
messages.
If the HLU is not communicating with the next span device, the following occurs:
1Alarm and diagnostic messages are displayed (see the Front Panel Alarm
Messages and Front Panel Diagnostic Messages tables inside), followed by the
SELF TEST message.
2The Status LED turns yellow, indicating it has entered self-test mode.
If the HLU is communicating with the next span device, the following occurs:
1The 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.
2The four-character display reports margin (signal-to-noise ratio) readings and
insertion loss.
3If the status LED is not solid green, the display reports alarm conditions (see the
Front Panel Alarm Messages table inside).
PROVISIONING
1Access the Maintenance Terminal screens by pressing several times.
aSet the date and time (select Set Clock from the Maintenance Terminal
Main Menu).
bSet the circuit IDs (select View System Inventory from the Maintenance
Terminal Main Menu).
2Access the Systems Settings screen from the Maintenance Terminal Main Menu
to change the default settings of any system parameters.
3Access the View Troubleshooting screen to view a graphical analysis of any
potential system problems.
4When the HLU has been successfully installed and provisioned, clear Span
Status, Performance Data, Performance History, and Alarm History screens to
ensure accurate data and alarm reporting.
Continued
SPACEBAR
Þ
QUICK INSTALLATION
HLU-C-388 LIST 5F
LINE UNIT
MODE SEL
M
A
R
G
I
N
(dB)
SETUP
STATUS
RS
232
HLU 388
HG HDI AIN
L 5F
Product Catalog: HLU-C-388 List 5F
CLEI: T1L4FYLB
Document: 350-388-156-02
´,.G¶7X¨
1214397
June 29, 2000
LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance menus or use the MODE and SEL
buttons. The inband codes shown in the table below can be sent by a test set.
106
105
104
103
102
101
100
DSX-1RCV
DSX-1XMT
HDSL2
HDSL1
205
204
203
202
201
200
119
118
117
116
115
114
113
112
111
110
Ground Ground
FrameGround
MJF*
Ring1
Ring1
Tip1
Tip1
(Mgmt.bus)
Ring
Ring
Tip
Tip
(Factoryburn-in)
-48Vdc
219
218
217
216
215
214
213
212
211
210
209
208
207
206
109
108
107
* MJF (major fuse alarm) is normally floating (0 to 80 V maximum)
and at -48 Vdc (10 mA maximum) when activated.
List number (HLU version number)
RS-232 Craft port
Bantam 210 jack provides bidirectional communication
between the unit and an external terminal by way of
DB-9 or DB-25 connector to allow configuration and
performance monitoring through the maintenance
terminal menus. (Use adapter for jack,
part number 120-1035-01.
)
CLEI code label
M
A
R
G
I
N
(dB)
L
RS
232
STATUS
SETUP
MODE SEL
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Status LED
Reports the following conditions:
Self Test is in process, or a Customer
Remote Loopback (CREM) or Network
Local Loopback (NLOC) is in effect
Green LED Normal operation
Flashing Green LED HDSL acquisition
Red LED Fuse alarm
Flashing Red LED System alarm
Yellow LED
FlashingYellow LED
Configuration number
System is in Armed (ARM) mode
System option buttons (for manual setting of
system parameters)
Use MODE and SEL to manually modify user options,
initiate loopbacks, and display DSX-1 line parameters.
1
2
3
4
Press the MODE button for 3 seconds and release.
The front panel alternately displays the first
system parameter and its current setting.
Press SEL to step through all possible system
settings for the displayed parameter.
Press MODE to update the parameter and advance
to the next parameter.
After scrolling through all the parameters, press SEL
to confirm changes when prompted with a CONF YES
message, or press MODE to cancel all changes.
1200-9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control: OFF
Terminal emulation: VT100
Modem Settings
Front Panel Card-edge Connector
5F
HLU 388
HG HDIAIN
106
105
104
103
102
101
100
DSX-1RCV
DSX-1XMT
HDSL2
HDSL1
205
204
203
202
201
200
119
118
117
116
115
114
113
112
111
110
Ground Ground
FrameGround
MJF*
Ring1
Ring1
Tip1
Tip1
(Mgmt.bus)
Ring
Ring
Tip
Tip
(Factoryburn-in)
-48Vdc
219
218
217
216
215
214
213
212
211
210
209
208
207
206
109
108
107
* MJF (major fuse alarm) is normally floating (0 to 80 V maximum)
and at -48 Vdc (10 mA maximum) when activated.
List number (HLU version number)
RS-232 Craft port
Bantam 210 jack provides bidirectional communication
between the unit and an external terminal by way of
DB-9 or DB-25 connector to allow configuration and
performance monitoring through the maintenance
terminal menus. (Use adapter for jack,
part number 120-1035-01.)
CLEI code label
M
A
R
G
I
N
(dB)
L
RS
232
STATUS
SETUP
MODE SEL
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Status LED
Reports the following conditions:
Self Test is in process, or a Customer
Remote Loopback (CREM) or Network
Local Loopback (NLOC) is in effect
Green LED Normal operation
Flashing Green LED HDSL acquisition
Red LED Fuse alarm
Flashing Red LED System alarm
Yellow LED
FlashingYellow LED
Configuration number
System is in Armed (ARM) mode
System option buttons (for manual setting of
system parameters)
Use MODE and SEL to manually modify user options,
initiate loopbacks, and display DSX-1 line parameters.
1
2
3
4
Press the MODE button for 3 seconds and release.
The front panel alternately displays the first
system parameter and its current setting.
Press SEL to step through all possible system
settings for the displayed parameter.
Press MODE to update the parameter and advance
to the next parameter.
After scrolling through all the parameters, press SEL
to confirm changes when prompted with a CONF YES
message, or press MODE to cancel all changes.
1200-9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control: OFF
Terminal emulation: VT100
Modem Settings
Front Panel Card-edge Connector
5F
HLU 388
HG HDIAIN
Table 1. GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to the network at the HLU.
NDU1 110000 DSX-1 signal is looped back to the network at HDU 1.
NDU2 111000 DSX-1 signal is looped back to the network at HDU 2.
NDU3 1010001 DSX-1 signal is looped back to the network at HDU 3
NDU4 1010010 DSX-1 signal is looped back to the network at HDU 4
NREM 1110000 DSX-1 signal is looped back to the network at the HRU.
SMJK 11000 DSX-1 signal is looped back to the network at the HRU SmartJack module.
CREM 1111110 Signal from customer is looped back to the customer at the HLU.
CDU1 111100 Signal from customer is looped back to the customer at HDU 1.
CDU2 111110 Signal from customer is looped back to the customer at HDU 2.
CDU3 1011001 Signal from customer is looped back to the customer at HDU 3.
CDU4 1011010 Signal from customer is looped back to the customer at HDU 4.
CLOC 1111100 Signal from customer is looped back to the customer at the HRU.
Loopdown 11100 Loops down any of the above loopbacks.
For more detailed information about the Maintenance Terminal
screens, provisioning, and loopback mode testing, refer to the
HLU-388 List 5F technical practice, document number
150-388-156-xx. It can be downloaded from the Customer Site portion
of the ADC Web page at www.adc.com. A password is required to
access the Customer Site Web pages. If you do not have a password,
contact your ADC sales representative.
Table 2. Front-Panel Alarm Messages
Message Description
LOSW Indicates that one of the HDSL loops has lost sync.
LLOS Indicates that no signal is detected at the DSX-1 input to the HLU.
RLOS Indicates that no signal is detected at the DS1 input to the HRU.
BER A system Bit Error Rate alarm is in effect.
MAL1 or MAL2 The margin on HDSL Loop 1 or Loop 2 has dropped below the threshold set by the user.
NONE No alarm present.
NOTE: Alarm (ALRM) displays priorto an alarm message. Pressing the SELbutton initiates an Alarm Cutoff (ACO) condition.
Table 3. System Configuration Codes
Code Description
VER xxxx The release revision of the firmware (appears during the System Settings review mode).
LIST xxxx The model number of the product (appears during the System Settings review mode).
FRM xxxx Indicates the type of frame pattern being received from the DSX-1, where xxxx is SF,
ESF, UNFR, or NONE).
CODE xxxx The line code setting, where xxxx is Alternate Mark Inversion (AMI) or Bipolar with
8-Zero Substitution (B8ZS).
PLEV xxxx Indicates the HDSL line voltage in its LOW (-140 Vdc), HIGH (±112 Vdc), or DIS
(disabled state).
Table 4. Front-Panel Diagnostic Messages
(normal operating messages in bold)
Message Description
1=xx or 2=yy Indicates the powerof the received HDSL signal oneach looprelativeto noise. Anyvalue
of 6dB or greater is adequate for reliable system operation.
nHDU Indicates the number (n) of doublers in the circuit (if any are present).
INSL xxdB ThemaximumInsertionLossmessage(INSL)appearsfollowedbyxxdB,where xxisthe
maximum insertion in dB of all spans and loops.
ACQ1 or ACQ2 The multiplexers of the HLU and the HRU or the first doubler are trying to establish
synchronization over Loop 1 or Loop 2 of Span 1.
AnL1 or AnL2 ThemultiplexersofthetwodevicesonSpannaretryingtoestablishsynchronizationwith
each other on Loop 1 or Loop 2, where nis the number of the span.
BAD RT? The HLU is not receiving any response from the HRU.
FERR Framing bit error occurred at HLU DSX-1 input.
H1ES or H2ES HDSL Loop 1 or Loop 2 CRC error.
LBPV A local bipolar violation has been received at the DSX-1 input to the HLU-388 List 5F.
MNGD The HLU is under control of the HMU-319 Network Management Unit.
PWR FEEDGND One of the HDSL loops has been grounded.
PWR FEED ON Indicates that the HDSL loops are not grounded or shorted.
PWR FEED OFF HDSL span power has been turned off.
PWR FEED SHRT IndicatesashortbetweenthetwoHDSLpairsortheinabilityoftheHRUtocommunicate
with the HLU.
SELF TEST The HLU is in a self-test mode. This occurs every power on/off cycle.
SIG1 or SIG2 The transceivers of the HLU and HRU or first doubler are trying to establish contact with
each other on Loop 1 or Loop 2 of Span 1.
SnL1 or SnL2 The transceivers of the two devices on Span nare trying to establish contact with each
other on Loop 1 or Loop 2, where nis the number of the span.
TLOS HRU is in a logic loopback state caused by a loss of its T1 input from the CI (if enabled
at the HRU through its TLOS switch option).
Table 5. System Settings
Display Code Description (default values in bold)
EQL Sets the Equalizer (EQL) DSX-1 to: 0 (0 to 133 ft.), 133 (133 to 266 ft.), 266 (266 to 399
ft.), 399 (399 to 533 ft.), 533 (533 to 655 ft.).
LPBK Enables (ENA) or disables (DIS) all inband SMJK loopback commands.
SPLB Configures the system for generic inband loopback commands(GNLB) or special
loopback commands (A1LB, A2LB, A3LB, A4LB, A5LB).
PWRF DIS = disables HDSL powering.
LOW = HDSL line voltage at -140 Vdc maximum.
AUTO = automatically switches between -140 Vdc for non-doubler applications and
±112 Vdc for doubler applications.
HIGH = ±112 Vdc for all applications.
ZBTS ON = ESF frame is operating in its Zero-Byte Time Slot Interchange (ZBTSI) mode.
OFF = ESF frame is operating in its normal non-ZBTSI mode.
BERT NONE = prevents generation of a system alarm due to excessive BER.
1E-6 or1E-7 = alarm activateswhen BER threshold exceeds 10-6 or 10- 7, respectively.
LBTO Loopback timeout = NONE, 20, 60, 120 minutes.
DS1 Line code = places the HLU and HRU in B8ZS, AUTO or AMI mode.
FRMG AUTO = configures the HiGain system to operate in an auto-framing mode.
UNFR = configures the HiGain system to operate in an unframed mode.
HAIS 2LP = transmits the AIS signal at both the HLU and the HRU T1 output ports when both
HDSL loops are not in sync (LOSW); 1LP =applieswhen eitherof the twoHDSL loopsare
not in sync or if a Margin alarm occurs.
SAIS Enables (ENA) or disables (DIS) transmission of AIS signal during NREM/SMJK
loopbacks.
RDA Enables (ENA) or disables (DIS) alarm indications due to remote DS1 LOS at HRU input.
ALMP Enables a line to outputan (AIS) payload ofall onesor an (LOS)condition at its DS1 ports
for LOSW, DS1 LOS, and margin alarms.
BPVT Enables (ENA) or disables (DIS) bipolar violation transparency (conversion of input DS1
BPVs and HDSL CRC errors into DS1 BPVs at the distant end’s DS1 output port).
MARG(a)
(a) MARG can only be set through the Maintenance Terminal.
Sets Margin Alarm Threshold (0 to 15 dB). Default = 4dB.
DS0(b)
(b) DSO can only be set through the Maintenance Terminal.
NONE = no DS0 channels blocked; BLK = some channels blocked.
CONF YES = confirms that all operating modes are to be updated to their current selections.
NO = prevents the most recently selected operating mode selection from being updated.
LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance menus or use the MODE and SEL
buttons. The inband codes shown in the table below can be sent by a test set.
106
105
104
103
102
101
100
DSX-1RCV
DSX-1XMT
HDSL2
HDSL1
205
204
203
202
201
200
119
118
117
116
115
114
113
112
111
110
Ground Ground
FrameGround
MJF*
Ring1
Ring1
Tip1
Tip1
(Mgmt.bus)
Ring
Ring
Tip
Tip
(Factoryburn-in)
-48Vdc
219
218
217
216
215
214
213
212
211
210
209
208
207
206
109
108
107
* MJF (major fuse alarm) is normally floating (0 to 80 V maximum)
and at -48 Vdc (10 mA maximum) when activated.
List number (HLU version number)
RS-232 Craft port
Bantam 210 jack provides bidirectional communication
between the unit and an external terminal by way of
DB-9 or DB-25 connector to allow configuration and
performance monitoring through the maintenance
terminal menus. (Use adapter for jack,
part number 120-1035-01.
)
CLEI code label
M
A
R
G
I
N
(dB)
L
RS
232
STATUS
SETUP
MODE SEL
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Status LED
Reports the following conditions:
Self Test is in process, or a Customer
Remote Loopback (CREM) or Network
Local Loopback (NLOC) is in effect
Green LED Normal operation
Flashing Green LED HDSL acquisition
Red LED Fuse alarm
Flashing Red LED System alarm
Yellow LED
FlashingYellow LED
Configuration number
System is in Armed (ARM) mode
System option buttons (for manual setting of
system parameters)
Use MODE and SEL to manually modify user options,
initiate loopbacks, and display DSX-1 line parameters.
1
2
3
4
Press the MODE button for 3 seconds and release.
The front panel alternately displays the first
system parameter and its current setting.
Press SEL to step through all possible system
settings for the displayed parameter.
Press MODE to update the parameter and advance
to the next parameter.
After scrolling through all the parameters, press SEL
to confirm changes when prompted with a CONF YES
message, or press MODE to cancel all changes.
1200-9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control: OFF
Terminal emulation: VT100
Modem Settings
Front Panel Card-edge Connector
5F
HLU 388
HG HDIAIN
106
105
104
103
102
101
100
DSX-1RCV
DSX-1XMT
HDSL2
HDSL1
205
204
203
202
201
200
119
118
117
116
115
114
113
112
111
110
Ground Ground
FrameGround
MJF*
Ring1
Ring1
Tip1
Tip1
(Mgmt.bus)
Ring
Ring
Tip
Tip
(Factoryburn-in)
-48Vdc
219
218
217
216
215
214
213
212
211
210
209
208
207
206
109
108
107
* MJF (major fuse alarm) is normally floating (0 to 80 V maximum)
and at -48 Vdc (10 mA maximum) when activated.
List number (HLU version number)
RS-232 Craft port
Bantam 210 jack provides bidirectional communication
between the unit and an external terminal by way of
DB-9 or DB-25 connector to allow configuration and
performance monitoring through the maintenance
terminal menus. (Use adapter for jack,
part number 120-1035-01.)
CLEI code label
M
A
R
G
I
N
(dB)
L
RS
232
STATUS
SETUP
MODE SEL
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Status LED
Reports the following conditions:
Self Test is in process, or a Customer
Remote Loopback (CREM) or Network
Local Loopback (NLOC) is in effect
Green LED Normal operation
Flashing Green LED HDSL acquisition
Red LED Fuse alarm
Flashing Red LED System alarm
Yellow LED
FlashingYellow LED
Configuration number
System is in Armed (ARM) mode
System option buttons (for manual setting of
system parameters)
Use MODE and SEL to manually modify user options,
initiate loopbacks, and display DSX-1 line parameters.
1
2
3
4
Press the MODE button for 3 seconds and release.
The front panel alternately displays the first
system parameter and its current setting.
Press SEL to step through all possible system
settings for the displayed parameter.
Press MODE to update the parameter and advance
to the next parameter.
After scrolling through all the parameters, press SEL
to confirm changes when prompted with a CONF YES
message, or press MODE to cancel all changes.
1200-9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control: OFF
Terminal emulation: VT100
Modem Settings
Front Panel Card-edge Connector
5F
HLU 388
HG HDIAIN
Table 1. GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to the network at the HLU.
NDU1 110000 DSX-1 signal is looped back to the network at HDU 1.
NDU2 111000 DSX-1 signal is looped back to the network at HDU 2.
NDU3 1010001 DSX-1 signal is looped back to the network at HDU 3
NDU4 1010010 DSX-1 signal is looped back to the network at HDU 4
NREM 1110000 DSX-1 signal is looped back to the network at the HRU.
SMJK 11000 DSX-1 signal is looped back to the network at the HRU SmartJack module.
CREM 1111110 Signal from customer is looped back to the customer at the HLU.
CDU1 111100 Signal from customer is looped back to the customer at HDU 1.
CDU2 111110 Signal from customer is looped back to the customer at HDU 2.
CDU3 1011001 Signal from customer is looped back to the customer at HDU 3.
CDU4 1011010 Signal from customer is looped back to the customer at HDU 4.
CLOC 1111100 Signal from customer is looped back to the customer at the HRU.
Loopdown 11100 Loops down any of the above loopbacks.
For more detailed information about the Maintenance Terminal
screens, provisioning, and loopback mode testing, refer to the
HLU-388 List 5F technical practice, document number
150-388-156-xx. It can be downloaded from the Customer Site portion
of the ADC Web page at www.adc.com. A password is required to
access the Customer Site Web pages. If you do not have a password,
contact your ADC sales representative.
Table 2. Front-Panel Alarm Messages
Message Description
LOSW Indicates that one of the HDSL loops has lost sync.
LLOS Indicates that no signal is detected at the DSX-1 input to the HLU.
RLOS Indicates that no signal is detected at the DS1 input to the HRU.
BER A system Bit Error Rate alarm is in effect.
MAL1 or MAL2 The margin on HDSL Loop 1 or Loop 2 has dropped below the threshold set by the user.
NONE No alarm present.
NOTE: Alarm (ALRM) displays priorto an alarm message. Pressing the SELbutton initiates an Alarm Cutoff (ACO) condition.
Table 3. System Configuration Codes
Code Description
VER xxxx The release revision of the firmware (appears during the System Settings review mode).
LIST xxxx The model number of the product (appears during the System Settings review mode).
FRM xxxx Indicates the type of frame pattern being received from the DSX-1, where xxxx is SF,
ESF, UNFR, or NONE).
CODE xxxx The line code setting, where xxxx is Alternate Mark Inversion (AMI) or Bipolar with
8-Zero Substitution (B8ZS).
PLEV xxxx Indicates the HDSL line voltage in its LOW (-140 Vdc), HIGH (±112 Vdc), or DIS
(disabled state).
Table 4. Front-Panel Diagnostic Messages
(normal operating messages in bold)
Message Description
1=xx or 2=yy Indicates the powerof the received HDSL signal oneach looprelativeto noise. Anyvalue
of 6dB or greater is adequate for reliable system operation.
nHDU Indicates the number (n) of doublers in the circuit (if any are present).
INSL xxdB ThemaximumInsertionLossmessage(INSL)appearsfollowedbyxxdB,where xxisthe
maximum insertion in dB of all spans and loops.
ACQ1 or ACQ2 The multiplexers of the HLU and the HRU or the first doubler are trying to establish
synchronization over Loop 1 or Loop 2 of Span 1.
AnL1 or AnL2 ThemultiplexersofthetwodevicesonSpannaretryingtoestablishsynchronizationwith
each other on Loop 1 or Loop 2, where nis the number of the span.
BAD RT? The HLU is not receiving any response from the HRU.
FERR Framing bit error occurred at HLU DSX-1 input.
H1ES or H2ES HDSL Loop 1 or Loop 2 CRC error.
LBPV A local bipolar violation has been received at the DSX-1 input to the HLU-388 List 5F.
MNGD The HLU is under control of the HMU-319 Network Management Unit.
PWR FEEDGND One of the HDSL loops has been grounded.
PWR FEED ON Indicates that the HDSL loops are not grounded or shorted.
PWR FEED OFF HDSL span power has been turned off.
PWR FEED SHRT IndicatesashortbetweenthetwoHDSLpairsortheinabilityoftheHRUtocommunicate
with the HLU.
SELF TEST The HLU is in a self-test mode. This occurs every power on/off cycle.
SIG1 or SIG2 The transceivers of the HLU and HRU or first doubler are trying to establish contact with
each other on Loop 1 or Loop 2 of Span 1.
SnL1 or SnL2 The transceivers of the two devices on Span nare trying to establish contact with each
other on Loop 1 or Loop 2, where nis the number of the span.
TLOS HRU is in a logic loopback state caused by a loss of its T1 input from the CI (if enabled
at the HRU through its TLOS switch option).
Table 5. System Settings
Display Code Description (default values in bold)
EQL Sets the Equalizer (EQL) DSX-1 to: 0 (0 to 133 ft.), 133 (133 to 266 ft.), 266 (266 to 399
ft.), 399 (399 to 533 ft.), 533 (533 to 655 ft.).
LPBK Enables (ENA) or disables (DIS) all inband SMJK loopback commands.
SPLB Configures the system for generic inband loopback commands(GNLB) or special
loopback commands (A1LB, A2LB, A3LB, A4LB, A5LB).
PWRF DIS = disables HDSL powering.
LOW = HDSL line voltage at -140 Vdc maximum.
AUTO = automatically switches between -140 Vdc for non-doubler applications and
±112 Vdc for doubler applications.
HIGH = ±112 Vdc for all applications.
ZBTS ON = ESF frame is operating in its Zero-Byte Time Slot Interchange (ZBTSI) mode.
OFF = ESF frame is operating in its normal non-ZBTSI mode.
BERT NONE = prevents generation of a system alarm due to excessive BER.
1E-6 or1E-7 = alarm activateswhen BER threshold exceeds 10-6 or 10- 7, respectively.
LBTO Loopback timeout = NONE, 20, 60, 120 minutes.
DS1 Line code = places the HLU and HRU in B8ZS, AUTO or AMI mode.
FRMG AUTO = configures the HiGain system to operate in an auto-framing mode.
UNFR = configures the HiGain system to operate in an unframed mode.
HAIS 2LP = transmits the AIS signal at both the HLU and the HRU T1 output ports when both
HDSL loops are not in sync (LOSW); 1LP =applieswhen eitherof the twoHDSL loopsare
not in sync or if a Margin alarm occurs.
SAIS Enables (ENA) or disables (DIS) transmission of AIS signal during NREM/SMJK
loopbacks.
RDA Enables (ENA) or disables (DIS) alarm indications due to remote DS1 LOS at HRU input.
ALMP Enables a line to outputan (AIS) payload ofall onesor an (LOS)condition at its DS1 ports
for LOSW, DS1 LOS, and margin alarms.
BPVT Enables (ENA) or disables (DIS) bipolar violation transparency (conversion of input DS1
BPVs and HDSL CRC errors into DS1 BPVs at the distant end’s DS1 output port).
MARG(a)
(a) MARG can only be set through the Maintenance Terminal.
Sets Margin Alarm Threshold (0 to 15 dB). Default = 4dB.
DS0(b)
(b) DSO can only be set through the Maintenance Terminal.
NONE = no DS0 channels blocked; BLK = some channels blocked.
CONF YES = confirms that all operating modes are to be updated to their current selections.
NO = prevents the most recently selected operating mode selection from being updated.
LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance menus or use the MODE and SEL
buttons. The inband codes shown in the table below can be sent by a test set.
106
105
104
103
102
101
100
DSX-1RCV
DSX-1XMT
HDSL2
HDSL1
205
204
203
202
201
200
119
118
117
116
115
114
113
112
111
110
Ground Ground
FrameGround
MJF*
Ring1
Ring1
Tip1
Tip1
(Mgmt.bus)
Ring
Ring
Tip
Tip
(Factoryburn-in)
-48Vdc
219
218
217
216
215
214
213
212
211
210
209
208
207
206
109
108
107
* MJF (major fuse alarm) is normally floating (0 to 80 V maximum)
and at -48 Vdc (10 mA maximum) when activated.
List number (HLU version number)
RS-232 Craft port
Bantam 210 jack provides bidirectional communication
between the unit and an external terminal by way of
DB-9 or DB-25 connector to allow configuration and
performance monitoring through the maintenance
terminal menus. (Use adapter for jack,
part number 120-1035-01.
)
CLEI code label
M
A
R
G
I
N
(dB)
L
RS
232
STATUS
SETUP
MODE SEL
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Status LED
Reports the following conditions:
Self Test is in process, or a Customer
Remote Loopback (CREM) or Network
Local Loopback (NLOC) is in effect
Green LED Normal operation
Flashing Green LED HDSL acquisition
Red LED Fuse alarm
Flashing Red LED System alarm
Yellow LED
FlashingYellow LED
Configuration number
System is in Armed (ARM) mode
System option buttons (for manual setting of
system parameters)
Use MODE and SEL to manually modify user options,
initiate loopbacks, and display DSX-1 line parameters.
1
2
3
4
Press the MODE button for 3 seconds and release.
The front panel alternately displays the first
system parameter and its current setting.
Press SEL to step through all possible system
settings for the displayed parameter.
Press MODE to update the parameter and advance
to the next parameter.
After scrolling through all the parameters, press SEL
to confirm changes when prompted with a CONF YES
message, or press MODE to cancel all changes.
1200-9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control: OFF
Terminal emulation: VT100
Modem Settings
Front Panel Card-edge Connector
5F
HLU 388
HG HDIAIN
106
105
104
103
102
101
100
DSX-1RCV
DSX-1XMT
HDSL2
HDSL1
205
204
203
202
201
200
119
118
117
116
115
114
113
112
111
110
Ground Ground
FrameGround
MJF*
Ring1
Ring1
Tip1
Tip1
(Mgmt.bus)
Ring
Ring
Tip
Tip
(Factoryburn-in)
-48Vdc
219
218
217
216
215
214
213
212
211
210
209
208
207
206
109
108
107
* MJF (major fuse alarm) is normally floating (0 to 80 V maximum)
and at -48 Vdc (10 mA maximum) when activated.
List number (HLU version number)
RS-232 Craft port
Bantam 210 jack provides bidirectional communication
between the unit and an external terminal by way of
DB-9 or DB-25 connector to allow configuration and
performance monitoring through the maintenance
terminal menus. (Use adapter for jack,
part number 120-1035-01.)
CLEI code label
M
A
R
G
I
N
(dB)
L
RS
232
STATUS
SETUP
MODE SEL
Four-character display
Displays status, provisioning, and
alarm messages. See tables below
for a list of message descriptions.
Status LED
Reports the following conditions:
Self Test is in process, or a Customer
Remote Loopback (CREM) or Network
Local Loopback (NLOC) is in effect
Green LED Normal operation
Flashing Green LED HDSL acquisition
Red LED Fuse alarm
Flashing Red LED System alarm
Yellow LED
FlashingYellow LED
Configuration number
System is in Armed (ARM) mode
System option buttons (for manual setting of
system parameters)
Use MODE and SEL to manually modify user options,
initiate loopbacks, and display DSX-1 line parameters.
1
2
3
4
Press the MODE button for 3 seconds and release.
The front panel alternately displays the first
system parameter and its current setting.
Press SEL to step through all possible system
settings for the displayed parameter.
Press MODE to update the parameter and advance
to the next parameter.
After scrolling through all the parameters, press SEL
to confirm changes when prompted with a CONF YES
message, or press MODE to cancel all changes.
1200-9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control: OFF
Terminal emulation: VT100
Modem Settings
Front Panel Card-edge Connector
5F
HLU 388
HG HDIAIN
Table 1. GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to the network at the HLU.
NDU1 110000 DSX-1 signal is looped back to the network at HDU 1.
NDU2 111000 DSX-1 signal is looped back to the network at HDU 2.
NDU3 1010001 DSX-1 signal is looped back to the network at HDU 3
NDU4 1010010 DSX-1 signal is looped back to the network at HDU 4
NREM 1110000 DSX-1 signal is looped back to the network at the HRU.
SMJK 11000 DSX-1 signal is looped back to the network at the HRU SmartJack module.
CREM 1111110 Signal from customer is looped back to the customer at the HLU.
CDU1 111100 Signal from customer is looped back to the customer at HDU 1.
CDU2 111110 Signal from customer is looped back to the customer at HDU 2.
CDU3 1011001 Signal from customer is looped back to the customer at HDU 3.
CDU4 1011010 Signal from customer is looped back to the customer at HDU 4.
CLOC 1111100 Signal from customer is looped back to the customer at the HRU.
Loopdown 11100 Loops down any of the above loopbacks.
For more detailed information about the Maintenance Terminal
screens, provisioning, and loopback mode testing, refer to the
HLU-388 List 5F technical practice, document number
150-388-156-xx. It can be downloaded from the Customer Site portion
of the ADC Web page at www.adc.com. A password is required to
access the Customer Site Web pages. If you do not have a password,
contact your ADC sales representative.
Table 2. Front-Panel Alarm Messages
Message Description
LOSW Indicates that one of the HDSL loops has lost sync.
LLOS Indicates that no signal is detected at the DSX-1 input to the HLU.
RLOS Indicates that no signal is detected at the DS1 input to the HRU.
BER A system Bit Error Rate alarm is in effect.
MAL1 or MAL2 The margin on HDSL Loop 1 or Loop 2 has dropped below the threshold set by the user.
NONE No alarm present.
NOTE: Alarm (ALRM) displays priorto an alarm message. Pressing the SELbutton initiates an Alarm Cutoff (ACO) condition.
Table 3. System Configuration Codes
Code Description
VER xxxx The release revision of the firmware (appears during the System Settings review mode).
LIST xxxx The model number of the product (appears during the System Settings review mode).
FRM xxxx Indicates the type of frame pattern being received from the DSX-1, where xxxx is SF,
ESF, UNFR, or NONE).
CODE xxxx The line code setting, where xxxx is Alternate Mark Inversion (AMI) or Bipolar with
8-Zero Substitution (B8ZS).
PLEV xxxx Indicates the HDSL line voltage in its LOW (-140 Vdc), HIGH (±112 Vdc), or DIS
(disabled state).
Table 4. Front-Panel Diagnostic Messages
(normal operating messages in bold)
Message Description
1=xx or 2=yy Indicates the powerof the received HDSL signal oneach looprelativeto noise. Anyvalue
of 6dB or greater is adequate for reliable system operation.
nHDU Indicates the number (n) of doublers in the circuit (if any are present).
INSL xxdB ThemaximumInsertionLossmessage(INSL)appearsfollowedbyxxdB,where xxisthe
maximum insertion in dB of all spans and loops.
ACQ1 or ACQ2 The multiplexers of the HLU and the HRU or the first doubler are trying to establish
synchronization over Loop 1 or Loop 2 of Span 1.
AnL1 or AnL2 ThemultiplexersofthetwodevicesonSpannaretryingtoestablishsynchronizationwith
each other on Loop 1 or Loop 2, where nis the number of the span.
BAD RT? The HLU is not receiving any response from the HRU.
FERR Framing bit error occurred at HLU DSX-1 input.
H1ES or H2ES HDSL Loop 1 or Loop 2 CRC error.
LBPV A local bipolar violation has been received at the DSX-1 input to the HLU-388 List 5F.
MNGD The HLU is under control of the HMU-319 Network Management Unit.
PWR FEEDGND One of the HDSL loops has been grounded.
PWR FEED ON Indicates that the HDSL loops are not grounded or shorted.
PWR FEED OFF HDSL span power has been turned off.
PWR FEED SHRT IndicatesashortbetweenthetwoHDSLpairsortheinabilityoftheHRUtocommunicate
with the HLU.
SELF TEST The HLU is in a self-test mode. This occurs every power on/off cycle.
SIG1 or SIG2 The transceivers of the HLU and HRU or first doubler are trying to establish contact with
each other on Loop 1 or Loop 2 of Span 1.
SnL1 or SnL2 The transceivers of the two devices on Span nare trying to establish contact with each
other on Loop 1 or Loop 2, where nis the number of the span.
TLOS HRU is in a logic loopback state caused by a loss of its T1 input from the CI (if enabled
at the HRU through its TLOS switch option).
Table 5. System Settings
Display Code Description (default values in bold)
EQL Sets the Equalizer (EQL) DSX-1 to: 0 (0 to 133 ft.), 133 (133 to 266 ft.), 266 (266 to 399
ft.), 399 (399 to 533 ft.), 533 (533 to 655 ft.).
LPBK Enables (ENA) or disables (DIS) all inband SMJK loopback commands.
SPLB Configures the system for generic inband loopback commands(GNLB) or special
loopback commands (A1LB, A2LB, A3LB, A4LB, A5LB).
PWRF DIS = disables HDSL powering.
LOW = HDSL line voltage at -140 Vdc maximum.
AUTO = automatically switches between -140 Vdc for non-doubler applications and
±112 Vdc for doubler applications.
HIGH = ±112 Vdc for all applications.
ZBTS ON = ESF frame is operating in its Zero-Byte Time Slot Interchange (ZBTSI) mode.
OFF = ESF frame is operating in its normal non-ZBTSI mode.
BERT NONE = prevents generation of a system alarm due to excessive BER.
1E-6 or1E-7 = alarm activateswhen BER threshold exceeds 10-6 or 10- 7, respectively.
LBTO Loopback timeout = NONE, 20, 60, 120 minutes.
DS1 Line code = places the HLU and HRU in B8ZS, AUTO or AMI mode.
FRMG AUTO = configures the HiGain system to operate in an auto-framing mode.
UNFR = configures the HiGain system to operate in an unframed mode.
HAIS 2LP = transmits the AIS signal at both the HLU and the HRU T1 output ports when both
HDSL loops are not in sync (LOSW); 1LP =applieswhen eitherof the twoHDSL loopsare
not in sync or if a Margin alarm occurs.
SAIS Enables (ENA) or disables (DIS) transmission of AIS signal during NREM/SMJK
loopbacks.
RDA Enables (ENA) or disables (DIS) alarm indications due to remote DS1 LOS at HRU input.
ALMP Enables a line to outputan (AIS) payload ofall onesor an (LOS)condition at its DS1 ports
for LOSW, DS1 LOS, and margin alarms.
BPVT Enables (ENA) or disables (DIS) bipolar violation transparency (conversion of input DS1
BPVs and HDSL CRC errors into DS1 BPVs at the distant end’s DS1 output port).
MARG(a)
(a) MARG can only be set through the Maintenance Terminal.
Sets Margin Alarm Threshold (0 to 15 dB). Default = 4dB.
DS0(b)
(b) DSO can only be set through the Maintenance Terminal.
NONE = no DS0 channels blocked; BLK = some channels blocked.
CONF YES = confirms that all operating modes are to be updated to their current selections.
NO = prevents the most recently selected operating mode selection from being updated.
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: 714.832.9922
Fax: 714.832.9924
Technical Assistance
Tel: 800.638.0031
Tel: 714.730.3222
Fax: 714.730.2400
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
HLU-388 LIST 5F
The HiGain®Line Unit HLU-388 List 5F is the Central Office (CO) side of a
repeaterless T1 transmission system. When used in conjunction with a HiGain Remote
Unit (HRU), the system provides 1.544 Mbps transmission on two unconditioned
copper pairs over the full Carrier Service Area (CSA) range. The CSA includes loops
up to 12,000 feet of 24 American Wire Gauge (AWG) or 9,000 feet of 26 AWG wire,
including bridged taps. This line unit can be used in applications with or without
HiGain Doubler Units (HDUs).
FEATURES
SPECIFICATIONS
•Front panel status LED, craft port, and
four-character status display •Payload (PL) orHiGain (HG) loopback source
identification
•Ultra-low wander •Reduced power consumption
•Five-span range with four doublers
(60 kft, 24 AWG) •Low line-power option (-140 V) for circuits
with a single doubler
•Selectable Power Feed modes •Bit Error Rate (BER) alarm options
•Loss of Signal (LOS)/Alarm Indicator
Signal (AIS) payload alarm option •Additional screens for inventory and
troubleshooting
•Supports Pulsecom HDSL 62/64 applications •Grounded loop detection
•B8ZS default line code option •Unframed (UNFR) default framing option
•Bipolar Violation Transparency (BPVT) option
Operating Temperature -40 °F to 149 °F (-40 °C to + 65°C)
Operating Humidity 5% to 95% non-condensing
HDSL Span Voltage -140 ±112 Vdc
Mounting DDM+ high-density shelf
HDSL Line Code 784 kbps 2B1Q
HDSL Output +13.5 dBm ±0.5 dB, 135 Ω
Maximum Provisioning Loss 35 dB at 196 kHz, 135 Ω
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI) or Bipolar with
8-Zero Substitution (B8ZS)
DS1 Frame Format Extended SuperFrame (ESF), SuperFrame (SF),
or Unframed (UNFR)
DSX-1 Pulse Output 6 V pk-pk, pre-equalized for 0 to 655 feet of ABAM
cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure proper installation of the HLU-388 List 5F:
1Lift up the entire front panel and align the HLU-388 List 5F with the shelf rails.
2Slide the unit in and press the front panel down to secure.
POWER-UP SEQUENCE
When the HLU powers up, the four-character display illuminates and reports status
messages.
If the HLU is not communicating with the next span device, the following occurs:
1Alarm and diagnostic messages are displayed (see the Front Panel Alarm
Messages and Front Panel Diagnostic Messages tables inside), followed by the
SELF TEST message.
2The Status LED turns yellow, indicating it has entered self-test mode.
If the HLU is communicating with the next span device, the following occurs:
1The 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.
2The four-character display reports margin (signal-to-noise ratio) readings and
insertion loss.
3If the status LED is not solid green, the display reports alarm conditions (see the
Front Panel Alarm Messages table inside).
PROVISIONING
1Access the Maintenance Terminal screens by pressing several times.
aSet the date and time (select Set Clock from the Maintenance Terminal
Main Menu).
bSet the circuit IDs (select View System Inventory from the Maintenance
Terminal Main Menu).
2Access the Systems Settings screen from the Maintenance Terminal Main Menu
to change the default settings of any system parameters.
3Access the View Troubleshooting screen to view a graphical analysis of any
potential system problems.
4When the HLU has been successfully installed and provisioned, clear Span
Status, Performance Data, Performance History, and Alarm History screens to
ensure accurate data and alarm reporting.
Continued
SPACEBAR
Þ
QUICK INSTALLATION
HLU-C-388 LIST 5F
LINE UNIT
MODE SEL
M
A
R
G
I
N
(dB)
SETUP
STATUS
RS
232
HLU 388
HG HDI AIN
L 5F
Product Catalog: HLU-C-388 List 5F
CLEI: T1L4FYLB
Document: 350-388-156-02
´,.G¶7X¨
1214397
June 29, 2000
Table of contents
Other ADC Network Hardware manuals
ADC
ADC PG-PLUS PLL-724 User manual
ADC
ADC LoopStar 750 User manual
ADC
ADC HiGain H2TU-C-231 User manual
ADC
ADC OmniReach MDU Rapid Fiber System User manual
ADC
ADC PG-PLUS PLL-733 User manual
ADC
ADC DSX-1 User manual
ADC
ADC H2TU-C-231 List 2F Original operating instructions
ADC
ADC H2TU-C-202 User manual
ADC
ADC PG-Flex FLL-812 User manual
ADC
ADC LoopStar EtherNID User manual
ADC
ADC ProPatch Miniature Series User manual
ADC
ADC HiGain HLU-231 LIST 8D Original operating instructions
ADC
ADC H2TU-C-202 User manual
ADC
ADC H2TU-C-388 HiGain User manual
ADC
ADC H2TU-C-388 HiGain Original operating instructions
ADC
ADC Active Digital Signal Cross-Connect ASX User manual
ADC
ADC H2TU-C-388 HiGain User manual
ADC
ADC Baluns Series User manual
ADC
ADC HiGain H2TU-R-402 Original operating instructions
ADC
ADC PG-Flex FLC-706 1A Instructions for use
Popular Network Hardware manuals by other brands
Paradyne
Paradyne COMSPHERE 6700 Series Network configuration guide
Motorola
Motorola W24 technical information
Korenix
Korenix JetNet 2205 Quick installation guide
peplink
peplink Pepwave MAX Series user manual
Bridgeworks
Bridgeworks Tamar FCSAS102800 user manual
Lindsay Broadband
Lindsay Broadband LBON300AC Series INSTALLATION AND OPERATION MANU