ADC PG-FlexPlus ARL-942 User manual

Section SCP-ARL942-010-02H
PG-FlexPlus
8 ADSL
Remote Line Unit
Technical Practice
Model List CLEI Code
ARL-942 1 VARHVGPG~~

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REVISION HISTORY
Copyright © 2003 ADC DSL Systems, Inc. All Rights Reserved.
ADC is a registered trademark of ADC Telecommunications, Inc. PG-FlexPlus is a trademark of ADC DSL Systems,
Inc. No right, license, or interest to such trademarks is granted hereunder, and you agree that you shall assert no
such right, license, or interest with respect to such trademarks.
Other product names mentioned in this document are used for identification purposes only and may be trademarks
or registered trademarks of their respective companies.
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.
Contents herein are current as of the date of publication. ADC reserves the right to change specifications at any time
without notice. Information furnished by ADC is believed to be accurate and reliable. In no event shall ADC be liable
for any damages resulting from the loss of data, loss of use, or loss of profits and ADC further disclaims any and all
liability for indirect, incidental, special, consequential or other similar damages. This disclaimer of liability applies to
all products, publications and services during and after the warranty period.
Revision Release Date Revisions Made
01 November 7, 2002 Initial Release
02 January 6, 2003 Updated Product Support Information

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USING THIS TECHNICAL PRACTICE
The following style conventions and terminology are used throughout this guide.
INSPECTINGYOUR SHIPMENT
Upon receipt of the equipment:
• Unpack each container and visually inspect the contents for signs of damage. If the equipment has been damaged in transit,
immediately report the extent of damage to the transportation company and to ADC. Order replacement equipment, if nec-
essary.
• Check the packing list to ensure complete and accurate shipment of each listed item. If the shipment is short or irregular,
contact ADC as described in Product Support on page 101. If you must store the equipment for a prolonged period, store the
equipment in its original container.
Element Meaning
Bold font Text that you must input exactly as shown (e.g., type 1 for card 1), menu buttons
(e.g., ACCEPT SHELF OPTIONS) or menu screen options (e.g., ALARMS screen) that you
must select
Italic font Variables that you must determine before inputting the correct value (e.g., Password )
Monospace font References to screen prompts (e.g., Invalid Password...Try Again:.)
Reader Alert Meaning
Alerts you to supplementary information
!
IMPORTANT Alerts you to supplementary information that is essential to the completion of a task
ATTENTION
Alerts you to possible equipment damage from electrostatic discharge
CAUTION Alerts you to possible data loss, service-affecting procedures, or other similar type problems
WARNING Alerts you that failure to take or avoid a specific action might result in hardware damage or loss of
service
DANGER Alerts you that failure to take or avoid a specific action might result in personal harm

Table of Contents
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Revision History ...................................................................................................................... i
Using this Technical Practice ..................................................................................................ii
InspectingYour Shipment .................................................................................................. ii
Overview ................................................................................................................................. 1
Description .............................................................................................................................. 2
Specifications .......................................................................................................................... 4
Power ...................................................................................................................................... 5
Performance Monitoring and Alarm History ............................................................................ 6
Alarms ............................................................................................................................... 6
Alarm Types ...................................................................................................................... 6
History ............................................................................................................................... 6
Front Panel ............................................................................................................................. 7
Installation and Test ................................................................................................................ 9
Required Tools and Test Equipment ................................................................................. 9
Installation ......................................................................................................................... 9
Install a ARL-942 ............................................................................................................... 9
Initialize and Power Up the ARL-942 ................................................................................ 10
Administration ......................................................................................................................... 10
Navigational Methods ............................................................................................................. 11
Configuration, Maintenance, and Testing ............................................................................... 12
Menus and Display Structure ............................................................................................ 12
Log On The ARL-942 Through the Management Unit ...................................................... 13
Logout of the ARL-942 through the Management Unit ..................................................... 17
Main Menu Option .................................................................................................................. 19
MAIN — Overall Status ..................................................................................................... 20
MAIN — Channel Status ................................................................................................... 22
MAIN — ADSL-A Status .................................................................................................... 24
MAIN — ADSL-B Status .................................................................................................... 25
Performance Menu Options .................................................................................................... 27
PERFORMANCE — SHDSL-A Summary ........................................................................ 29
PERFORMANCE — SHDSL-A 24 Hour History ............................................................... 32
PERFORMANCE — SHDSL-A 7 Day History .................................................................. 35
PERFORMANCE — ADSL-A 15 Minute Status ................................................................ 38
PERFORMANCE — ADSL-A 3 Day History ..................................................................... 41
PERFORMANCE — SHDSL-B Summary ........................................................................ 44

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PERFORMANCE — SHDSL-B 24 Hour History ............................................................... 44
PERFORMANCE — SHDSL-B 7 Day History .................................................................. 44
PERFORMANCE — ADSL-B 15 Minute Status ................................................................ 44
PERFORMANCE — ADSL-B 3 Day History ..................................................................... 44
Alarm Menu Options ............................................................................................................... 45
ALARMS — System History .............................................................................................. 47
ALARMS — SHDSL-A History .......................................................................................... 50
ALARMS — ADSL-A Upstream History ............................................................................ 53
ALARMS — ADSL-A Downstream History ....................................................................... 55
ALARMS — SHDSL-B History .......................................................................................... 58
ALARMS — ADSL-B Upstream History ............................................................................ 58
ALARMS — ADSL-B Downstream History ....................................................................... 58
Configuration Menu Options ................................................................................................... 59
CONFIG — System Options ............................................................................................. 61
CONFIG — System Alarm Type ....................................................................................... 64
CONFIG — SHDSL-A Alarm Thresholds .......................................................................... 67
CONFIG — SHDSL-A Alarm Types .................................................................................. 70
CONFIG — ADSL-A Options ............................................................................................ 73
CONFIG —ADSL-A Alarm Thresholds ............................................................................. 76
CONFIG — ADSL-A Alarm Types .................................................................................... 79
CONFIG — Set Factory Defaults ...................................................................................... 82
CONFIG — SHDSL-B Alarm Thresholds .......................................................................... 84
CONFIG — SHDSL-B Alarm Types .................................................................................. 84
CONFIG — ADSL-B Options ............................................................................................ 84
CONFIG — ADSL-B Alarm Thresholds ............................................................................ 84
CONFIG — ADSL-B Alarm Types .................................................................................... 84
TEST — SHDSL-A Subscriber Drop Test ......................................................................... 86
TEST — SHDSL-B Subscriber Drop Test ......................................................................... 87
Information Menu Options ...................................................................................................... 88
INFO — Inventory COLU .................................................................................................. 89
INFO — Inventory RT(s) ................................................................................................... 90
INFO — Inventory ADSL-A ............................................................................................... 91
INFO — Inventory ADSL-B ............................................................................................... 92
INFO — COLU Event Log ................................................................................................. 93
INFO — RT Event Log ...................................................................................................... 95
INFO — Help ..................................................................................................................... 97
Troubleshooting and Fault Isolation ........................................................................................ 98

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Acronyms ................................................................................................................................ 99
Product Support ...................................................................................................................... 101
Technical Support ..............................................................................................................101
Limited Warranty ...............................................................................................................101
Returns .............................................................................................................................. 101
FCC Class A Compliance ....................................................................................................... 102
Modifications ..................................................................................................................... 102

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List of Figures
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Figure 1. Edge RAM Architecture ......................................................................................... 2
Figure 2. ARX-965 RT Enclosure ......................................................................................... 3
Figure 3. ARL-942 Front Panel ............................................................................................. 7
Figure 4. Terminal Menu and Display Structure .................................................................... 12

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List of Tables
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Table 1. Specifications .........................................................................................................4
Table 2. Power Requirements .............................................................................................. 5
Table 3. ARL-942 Front Panel LEDs .................................................................................... 8
Table 4. Navigational Keystrokes ......................................................................................... 11
Table 5. Main Menu Options ................................................................................................ 19
Table 6. Overall Status .........................................................................................................21
Table 7. Channel Status ....................................................................................................... 23
Table 8. ADSL-A and ADSL-B Status .................................................................................. 26
Table 9. Performance Menu Options ................................................................................... 28
Table 10. SHDSL-A and SHDSL-B Summary ....................................................................... 31
Table 11. Alarm Menu Options .............................................................................................. 46
Table 12. Configuration Menu Options .................................................................................. 59
Table 13. System Options ...................................................................................................... 63
Table 14. Alarm Types Reported ........................................................................................... 66
Table 15. System Alarms Types ............................................................................................ 66
Table 16. SHDSL-A and SHDSL-B Alarm Thresholds ........................................................... 69
Table 17. SHDSL-A and SHDSL-B Alarm Types ................................................................... 72
Table 18. ADSL-A and ASDL-B Options ................................................................................ 75
Table 19. ADSL Alarm Thresholds ......................................................................................... 78
Table 20. ADSL-A and ADSL-B Alarm Types ........................................................................ 81
Table 21. Information Menu Options ...................................................................................... 88
Table 22. ARL-942 Troubleshooting and Fault Isolation ........................................................ 98

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OVERVIEW
The PG-FlexPlusTM ARL-942, L1 Asynchronous Transfer Mode (ATM) Remote Line Unit is an integral component of
the Edge Access Network System. The ARL-942 is installed in the ARX-965 24-Channel Edge Remote Access
Multiplexer (RAM) Remote Terminal Enclosure for Edge RAM applications. The Edge RAM extends Asynchronous
Digital Subscriber Line (ADSL) services beyond the normal ADSL range by using Single-pair High-bit-rate Digital
Subscriber Line (SHDSL) transport between the Central Office Terminal Shelf (COTS) and the RAM, then provides
ADSL drops to the subscriber (Figure 1 on page 2). POTS splitters are used with the RAM to combine Plain Old
Telephone Service (POTS) and ADSL on the same copper pair toward the subscriber.

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DESCRIPTION
The Edge Remote Acess Mulitplexer (RAM) extends ADSL services beyond the normal ADSL range by using
SHDSL transport between the COTS and the RAM, then provides ADSL drops to the subscriber (Figure 1). POTS
Splitters are used with the RAM to combine POTS and ADSL on the same copper pair toward the subscriber.
Each line-powered ARL-942 RAM module accepts one SHDSL circuit and supports eight ADSL circuits. The RAM is
line-powered via the SHDSL pair. Each system COTS supports up to 11 RAMs and can serve up to 256 ADSL
subscribers.
ATM data is transported between the COTS and the ATM switch or DSLAM over a DS3 or multiple DS1 circuits.
Equipment protection is provided through the ASU-945, which splits the DS3 signal between the two AMX-944 ATM/
TDM Mulitplex Units. The AMX-943 ATM/TDM Multiplexer Unit can be used in place of the AMX-944s. When using
the AMX-943, the ASU-935 should not be used. DS1’s are wired directly to the COT Shelf backplane. Refer to the
appropriate technical practice (AMX-944 or AMX-943) for more information.
The SHDSL circuits support ATM data from the ALU-935 Dual SHDSL Line Unit to the ARL-942 Line Unit. Analog
POTS circuits are terminated on the ARX-965 and are provided over copper pair or DLC systems from the CO
switch and are combined with the ADSL circuits originating from the ARL-942 in the ASU-940 POTS Splitter. The
ASU-940 must be installed in the ARX-965 to provide ADSL and POTS services to the subscriber.
The Management Unit (MU) (PMU-712/AMU-912) provides shelf management, performance monitoring, alarm and
test interface functions. The AMU-912 supports Simple Network Management Protocol (SNMP); however, the
PMU-712 does not support it.
Figure 1. Edge RAM Architecture

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Figure 2 shows the ARX-965 RT and the location of the ARL-942s and other cards in the RT Enclosure. The RT
supports three ARL-942s, three ASU-940s and a AFU-960 Fan Unit. The AFU-960 is included with the RT and must
be installed to ensure adequate cooling of the ARL-942s.
Figure 2. ARX-965 RT Enclosure
ARL-942s
and
ASU-940s
AFU-960
Fan Unit

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SPECIFICATIONS
Table 1 lists the specifications for the ARL-942.
Table 1. Specifications
Category Item Value
Electrical Input Voltage 180 Vdc to 270 Vdc
(± 130 Vdc)
Input Power Less than 12 W
G.SHDSL
Performance
Line Rate 576 Kbps to 2056 Kbps (dependent on length)
Line Reach 0 Kft to 12.5 Kft
ADSL Performance Line Rate 32 Kbps to 8160 Kbps
Line Reach Up to 13,000 ft
Environmental Elevation -200 ft. to 13,000 ft
-60 m to 4,000 m
Temperature -40° F to +150° F
-40° C to +65° C
Humidity 5% to 95% (non-condensing)
Compliance NEBS SR-3580 Level 3
ESD Per GR-1089-CORE
Power Cross and Lightning Surge Per GR-1089-CORE
Human Safety UL-1950 for Restricted Access
Emissions Radiation and Immunity GR-1089-CORE for Class A equipment
Physical Height 10.5 in. (26.7 cm.)
Width 2.0 in. (5.08 cm.)
Depth 7.8 in. (19.8 cm.)
Weight 1.0 lbs. (0.5 kg.)

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POWER
Table 2 lists the power metrics of the ARL-942.
Table 2. Power Requirements
Category Measurement
ARL-942 Input Power 8.2 W (no ADSL active)
9.5 W (8 ADSL active)
11 W (8 ADSL active with fan card running)
Power increase from 0 to 8 1.299 W

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PERFORMANCE MONITORING AND ALARM HISTORY
An ARL-942 provides extensive real-time, nondisruptive monitoring of SHDSL transmission performance
parameters. User selectable threshold settings for many of the performance monitoring measurements can be
adjusted in the ARL-942 screen. These settings cause alarms to be activated at the designated setting. ADSL
performance is monitored and some threshold settings can also be adjusted. The ART reports the raw ADSL
statistics to the ARL-942 which accumulates and displays the information. Monitored parameters include the
following:
• SHDSL- Rate, Noise Margin, Insertion Loss, Errored Second (ES), Unavailable Seconds (UAS)
• ADSL - Coding Type, Noise Margin, Rate, Attenuation, Interleave Delay, ES, Severely Errored Seconds (SES),
UAS
ALARMS
An ARL-942 generates the listed alarms for fault conditions on the SHDSL transmission facility and at the
application interface.
All SHDSL alarms are suppressed when unit is initially installed and powered up. When the SHDSL circuit is
synchronized and the ARL-942 and RT margins have cleared, any outstanding alarms that had been suppressed
are made active and reported to the Management Unit (based upon their provisioned types).
ADSL alarms are suppressed until the ADSL line synchronizes for the first time.
ALARM TYPES
Any alarm may be set to the following severities:
• Critical - CR
•Major-MJ
•Minor-MN
• Not Alarmed - NA
• Not Reported - NR
HISTORY
Current cumulative counts of the past 24 hours and historical data in the form of a 24-hour history (in 15-minute
increments) and a 7-day history (in 24-hour increments) are available to assist you in identifying problem sources.
• SHDSL Interface: 24-Hour (15-minute intervals) and 7-Day (24-hour intervals) for ES and UAS
• Alarm: Time stamp of first and last occurrence, number of occurrences for all enabled alarms
• ADSL: 15 minute and 3-Day for ES, SES and UAS
During alarm suppression, alarms are not reported to the Management Unit for generating user alarms.
Only the alarm history is generated for ARL-942 screens that are in alarm.
An alarm type set to NA will accumulate history counts and send an SNMP trap message, but will not be
passed to the management unit for further alarm processing. However, Current Status will show ACTIVE.
An alarm set to NR will not be reported by the system.

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FRONT PANEL
Figure 3 shows the ARL-942 front panel and Table 3 on page 8 describes the front panel LEDs.
Figure 3. ARL-942 Front Panel

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Table 3. ARL-942 Front Panel LEDs
LED Color State Description
PWR Green On ARL-942 is receiving power from the ALU-935
Off ARL-942 is not receiving power from the ALU-935
SHDSL Green On SHDSL is in sync between the ARL-942 and the ALU-935
Flashing
(Fast)
SHDSL is in sync between the ARL-942 and the ALU-935, but the
margin is below the threshold
Flashing
(Slow)
SHDSL is attempting to sync
Off SHDSL does not detect a signal from the ALU-935
FAULT Red On An internal fault has been detected in the ARL-942
Off No internal fault has been detected in the ARL-942
ADSL #
(# = 1 – 8)
Green On ADSL is in sync
Flashing
(Fast)
ADSL is in sync between the ARL-942 and the ALU-935 and the
margin is below the threshold
Flashing
(Slow)
ADSL is idle or attempting to sync
Off LEDs are in power save mode. Press LED REFRESH to see
status.