ADC EMU-830 User Manual
WorldDSL
TM
Exchange Office Management Unit
EMU-830 User Manual
Document Number:
LTPE-UM-3159-02
REVISION HISTORY
The Revision History provides a summary of any changes in this manual. Please make sure you are using the
latest revision of this manual.
September 25, 2006
Revision Release Date Revisions Made
01 September 30, 2004 Initial release.
02 September 25, 2006 Technical update for L4A/L6A.
This manual is available online at ADC’s website (www.adc.com/documentationlibrary/) or you can order copies
of the manual by contacting your sales representative. Please ask for document LTPE-UM-3159-02.
Copyright
©2006 ADC Telecommunications, Inc. All rights reserved.
Trademark Information
ADC is a registered trademark of ADC Telecommunications, Inc. WorldDSL is a trademark of ADC Telecommunications,
Inc. No right, license, or interest to such trademarks is granted hereunder, and you agree that no such right, license, or
interest shall be asserted by you 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.
Disclaimer of Liability
Information contained in this document is company private to ADC Telecommunications, Inc., and shall not be modified,
used, copied, reproduced or disclosed in whole or in part without the written consen t of ADC.
Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice.
In no event shall ADC be liable for any damages resulting from 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 d isclaimer of
liability applies to all products, publications and services during and after the warranty period.
Table of Contents
Chapter 1: Overview ....................................................................................................... 1-1
New Features ........................................................................................................................... 1-1
St an dard Features ....................................................................................................................1-1
Front Panel ...............................................................................................................................1-2
Major Components ................................................................................................................... 1-3
Multishelf TAO ..........................................................................................................................1-3
SNMP .......................................................................................................................................1-6
SNMP Management Information Base .................................................................................... 1-7
Traps ........................................................................................................................................ 1-8
BOOTP and TFTP Protocols .................................................................................................... 1-9
Xmodem Protocol ..................................................................................................................... 1-9
Alarms ....................................................................................................................................1-10
Autonomous Dial-out Alarm Reporting ..................................................................................1-10
External Shelf Clock Backup Circuit ........................................................................................1-11
Chapter 2: Installation .................................................................................................... 2-1
EMU Jumper Settings ..............................................................................................................2-1
EMU Installation .......................................................................................................................2-2
Multishelf Cable Connections ...................................................................................................2-4
Local Terminal Connections .....................................................................................................2-5
Remote Terminal and Local Shelf Modem Connections ..........................................................2-7
Management Station Internal Modem ................................................................................2-7
Management Station External Modem ............................................................................... 2-7
Local Shelf Modem for Multishelf TAO ............................................................................... 2-7
Shelf Modem for SLIP Operation .............................................................................................2-9
Chapter 3: Menu Navigation and Multishelf Configuration ........................................ 3-1
Console Menu Navigation ........................................................................................................3-1
Console Menu Options .............................................................................................................3-1
Multishelf Configuration ............................................................................................................ 3-3
Logging On ......................................................................................................................... 3-3
Network Screen .................................................................................................................. 3-4
Logging in to the Main menu .............................................................................................. 3-4
Main Menu ..........................................................................................................................3-4
Logging into DSL Circuits ................................................................................................... 3-7
Enabling or Disabling Alarm Reporting ..............................................................................3-8
Config Menu ....................................................................................................................... 3-8
Network Parameters Menu ................................................................................................ 3-8
SNMP Parameters Menu ..................................................................................................3-11
Modem Parameters (Configure and Test Dial-out Alarm Reporting) ...............................3-14
Shelf Alarms Menu ........................................................................................................... 3-16
Remote Alarm Reporting .................................................................................................. 3-17
Set Date and Time ........................................................................................................... 3-17
LTPE-UM-3159-02 iii
Table of Contents September 25, 2006
Change Password ............................................................................................................ 3-18
Set Shelf ID ......................................................................................................................3-19
Terminal Settings ..............................................................................................................3-20
Set to Factory Defaults ..................................................................................................... 3-21
Reset EMU ....................................................................................................................... 3-22
Inventory Information Screen ........................................................................................... 3-22
Managing Firmware Through the Upload Menu .................................................................... 3-24
Appendix A: Specifications .........................................................................................A-1
Alarms ......................................................................................................................................A-1
Power Requirements ................................................................................................................A-1
Environmental ..........................................................................................................................A-1
Regulatory Approvals ...............................................................................................................A-1
Compatibility .............................................................................................................................A-1
Appendix B: Product Support .....................................................................................B-1
Glossary ......................................................................................................................GL-1
iv LTPE-UM-3159-02
List of Figures
Figure 1-1. EMU-830 Front Panel .......................................................................................1-2
Figure 1-2. Local Management of a Single Shelf Using RS-232/Telnet .............................1-4
Figure 1-3. Remote Management of Multiple Shelves at T wo Si tes Using Multishelf TAO 1-4
Figure 1-4. Multishelf TAO Network Screen .......................................................................1-5
Figure 1-5. Multishelf TAO Main Menu Screen ...................................................................1-5
Figure 1-6. WorldDSL Shelves Managed by SNMP through LAN and SNMP
through SLIP .....................................................................................................1-7
Figure 1-7. EMU-830 Alarm Relay Diagram .....................................................................1-10
Figure 1-8. External Shelf Clock and EMU-830 List 6A Backup Circuit ........................... 1-11
Figure 2-1. Location of the SLIP Header Connector P6 on the EMU-830 ..........................2-1
Figure 2-2. Removing the EMU-Slot Faceplate from EMS-830 ..........................................2-2
Figure 2-3. Installing the EMU-830 into Slot 17 of EMS-830 ..............................................2-3
Figure 2-4. 10BASE-T Multishelf Cable Connections .........................................................2-4
Figure 2-5. EMU-830 Console Port Pinouts to DB-9 or DB-25 Connector .........................2-5
Figure 2-6. Connecting a Maintenance Terminal or PC to the EMU-830 Console Port ..... 2-6
Figure 2-7. Modem to EMU Serial Cable Pinouts ...............................................................2-9
Figure 2-8. Modem to SLIP Port Cable Pinouts ................................................................2-10
Figure 3-1. Logon Screen Dialog Box .................................................................................3-3
Figure 3-2. Network Screen ................................................................................................3-4
Figure 3-3. Main Menu Screen ...........................................................................................3-5
Figure 3-4. Config Menu .....................................................................................................3-8
Figure 3-5. Network Parameters Menu ...............................................................................3-9
Figure 3-6. SNMP Parameters Menu ............................................................................... 3-11
Figure 3-7. Modem Parameters Menu ..............................................................................3-14
Figure 3-8. LOSW* and LOSW1 Alarm Reporting Screen ...............................................3-15
Figure 3-9. LOS*, PFO* and LOSW* Alarm Reporting Screen ........................................3-16
Figure 3-10.Shelf Alarms Menu .........................................................................................3-16
Figure 3-11.Remote Alarm Reporting Menu Item ..............................................................3-17
Figure 3-12.Set Date/Time Dialog Box ..............................................................................3-18
Figure 3-13.Change Password Dialog Box .......................................................................3-19
Figure 3-14.Set Shelf ID Dialog Box ..................................................................................3-19
Figure 3-15.Terminal Settings Menu ..................................................................................3-20
Figure 3-16.Restore To Factory Defaults Warning Prompt ................................................3-21
Figure 3-17.Reset EMU Warning Prompt ..........................................................................3-22
Figure 3-18.Inventory Information Screen .........................................................................3-23
Figure 3-19.Upload Line Unit Menu Item ...........................................................................3-25
Figure 3-20.Upload to Line Unit Dialog Box ......................................................................3-25
LTPE-UM-3159-02 v
List of Figures September 25, 2006
Figure 3-21.Xmodem Transfer Message ...........................................................................3-26
Figure 3-22.Local Line Unit Uploading Message ...............................................................3-26
Figure 3-23.Upload EMU Menu Item .................................................................................3-28
Figure 3-24.Upload to Local EMU Dialog Box ...................................................................3-28
Figure 3-25.TFTP Upload EMU Prompt ............................................................................3-29
Figure 3-26.Xmodem Upload EMU Prompt .......................................................................3-29
Figure 3-27.Boot Loader Prompt .......................................................................................3-30
Figure 3-28.Remote Upload EMU Dialog ..........................................................................3-30
Figure 3-29.Remote EMU Upload Message .....................................................................3-31
vi LTPE-UM-3159-02
List of Tables
Table 1-1.EMU-830 List 4A and 6A Front Panel Components ................................... ........1-2
Table 1-2.W orldDSL Traps ..................................................................................................1-8
Table 3-1.Console Menu Navigation Keys ............................... ................ ................. ..........3-1
Table 3-2.Logon, Network, and Main Menu Screen Selections ..........................................3-2
Table 3-3.DSL Line Unit Status Conditions .........................................................................3-6
Table 3-4.DSL Circuit Alarms in Order of Severity ..............................................................3-6
Table 3-5.Network Parameters .........................................................................................3-10
Table 3-6.SNMP Parameters Menu ..................................................................................3-12
Table 3-7.Data in Inventory Information Screen ................................................................3-23
Table 3-8.Line Unit Uploads ..............................................................................................3-25
LTPE-UM-3159-02 vii
List of Tables September 25, 2006
viii L TPE-UM-3159-02
ABOUT THIS MANUAL
INTRODUCTION
This manual contains information on the ADC® World DSL™ EMU-830 (hereafter referred to as the “EMU-830”). An
Exchange Office Management Unit (EMU) is installed in a WorldDSL Exchange Office Management Shelf (EMS).
The EMU provides alarm, fault, configuration, and performance management of HDSL and G.SHDSL circuits
deployed from a WorldDSL shelf.
ORGANIZATION
This manual includes the following chapters:
Chapter Description
Chapter 1: Overview Summarizes the features and functionality provided with the
EMU-830 management unit.
Chapter 2: Installation Provides procedures for installing the EMU-830 unit.
Chapter 3: Menu Navigation and Multishelf
Configuration
Appendix A: Specifications Summarizes alarm, power, and card compatibility requirements
Appendix B: Product Support Provides information on how to contact the ADC Technical
Glossary Defines abbreviations and acronyms for the ADC WorldDSL
Describes how to navigate management unit screens and
configure shelf, alarm, performance, and system settings.
for the EMU-830.
Support group.
product family.
INTENDED AUDIENCE
This manual is intended for anyone needing to install, operate, and maintain an ADC WorldDSL EMU-830.
CONVENTIONS
The following style conventions and terminology are used throughout this guide.
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
!
LTPE-UM-3159-02 ix
About This Manual September 25, 2006
Reader Alert Meaning
Alerts you to possible equipment damage from electrostatic discharge
ATTENTION
CAUTION
WARNING
DANGER
Alerts you to possible data loss, service-affecting procedures, or other similar type
problems
Alerts you that failure to take or avoid a specific action might result in hardware damage or
loss of service
Alerts you that failure to take or avoid a specific action might result in personal harm
EU COMPLIANCE
This product has been CE marked in accordance with the requirements of European Directive 73/23/EEC; the
following mentioned product is in conformity with Low Voltage Directive 73/23/EEC in order to comply with the
requirements in the Council Directive 73/23/EEC relating to electrical equipment designed for use within certain
voltage limits and the Amendment Directive 93/68/EEC.
For safety evaluation of the compliance with this Directive 73/23/EEC, these standards were applied:
IEC 60950:1999, EN 60950:2000.
INSPECTING YOUR 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 necessary.
• 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 Appendix B: “Product Support” on page B-1. If you must store the
equipment for a prolonged period, store the equipment in its original co ntainer.
x LTPE-UM-3159-02
Chapter
OVERVIEW
The EMU-830 provides management for HDSL and G.SHDSL circuits using either of the following methods:
• One or more shelves of HDSL or G.SHDSL circuits can be managed by connecting a management terminal (or
PC with terminal emulation software) to the EMU-830 of one shelf. The management terminal (or PC) can be
connected to the EMU-830 either directly (or through modems over a dial-up network). When two or more
shelves are present, the Ethernet ports of each shelf can be interconnected to form a Local Area Network
(LAN). This method of management is referred to as Multishelf Terminal Access Option (Multishelf TAO).
• One or more shelves of HDSL or G.SHDSL circuits can be managed over a LAN using the Simple Network
Management Protocol (SNMP). SNMP can access a shelf through its 10BASE-T Ethernet port or through its
Serial Line Interface Port (SLIP) over dial-up modem connections. These methods of management are referred
to as SNMP through LAN and SNMP through SLIP. The StarGazer application can be used to manage
WorldDSL shelves with the EMU-830 using SNMP through LAN.
• Management of a single shelf or multshelf TAO using Telnet.
The EMU-830 List 4A and List 6A are CE marked.
NEW FEATURES
New features in this release include management of new V11 WD92xGx line cards.
1
Note: DSL is used throughout the remaining page s of th is document when referring to both HDSL and
G.SHDSL.
ST ANDARD FEATURES
St andard fea tur es of the EMU-830 in clud e:
• Support of Multishelf TAO
• Support of Point-to-Multipoint (PTM) application mode (HDSL)
• Support of Single-Pair application, Two Pair, 1+1 Application Modes (WD92xGx)
• Support of Telnet access for TAO over Ethernet or SLIP port
• Doubler support for two-pair line units (HDSL)
• Support of rate-selectable HDSL line and desktop units
• Universal Termination Units (UTUs) supported as a Line Termination Unit (LTU) or Network Termination Unit
(NTU) through SNMP (HDSL and G.SHDSL 1-pair)
• WorldDSL WD92xGx G.SHDSL 2-p air line cards (G.703, Nx64K, Ethernet) configurable as STU-C or STU-R
• User programmable baud rates for SLIP port
• Chassis slots & DSL loops identified in alarm report s
• Configuration changes automatically saved in NVRAM
• Automatic log out after 20 minutes of keyboard inactivity
• Backup timing circuit for external shelf clock on EMU-830 List 6A
• Firmware download protocol (TFTP, XModem)
• Trap s Gener atio n
LTPE-UM-3159-02 1-1
Chapter 1: Overview September 25, 2006
t
FRONT PANEL
Figure 1-1 and Table 1-1 identify and describe the front-panel components of the EMU-830 Lists 4A and 6A.
POWER
FAIL
EXT COMM
CRITICAL
MAJOR
MINOR
ALM
System status LEDs
Alarm LEDs
Reset switch
ACO
RESET
V.24
EMU-830
Alarm cut-off LED
and switch
V.24 (RS-232) console por
Figure 1-1. EMU-830 Front Panel
Table 1-1. EMU-830 List 4A and 6A Front Panel Components
Name Mode Function
System Status LEDs:
Power Green Indicates power to the EMU-830.
Fail Red
Indicates system failure.
a
EXT Comm Green Indicates when data is being transmitted from the EMU-830
console port to a management station.
Alarm LEDs:
Critical ALM Red Indicates a critical alarm condition.
Major ALM Yellow Indicates a major alarm condition.
Minor ALM Yellow Indicates a minor alarm condition.
Alarm Cut-off LED and Switch:
ACO LED Green Indicates the Alarm Cut-Off (ACO) was activated.
ACO switch On/Off Activates ACO from the front panel if an alarm is active.
1-2 LTPE-UM-3159-02
September 25, 2006 Chapter 1: Overview
Name Mode Function
Reset switch Resets the EMU-830 hardware.
V.24 (RS-232) console
port
a. It is normal for the Fail LED to illuminate briefly when power is applied to the EMU-830.
Provides access to EMU console menus either by local terminal
connected to console port via serial cable or by remote terminal
connected to console port via modems. Also supports
autonomous dial-out reporting of alarms to management station.
MAJOR COMPONENTS
Major components of the EMU-830 management unit include:
• 68302 processor
• 2 MB Flash RAM program memory
• Ethernet 10BASE-T port
• Asynchronous Serial Line Internet Protocol (SLIP) port (RS-232/RS-485)
• Front panel V.24 (RS-232) console port
• Audible and visual relays for critical, major, and minor alarms
• Backup timing circuit for external shelf clock (EMU-830 List 6A only)
The EMU-830 Flash RAM program memory permits firmware upgrades through TFTP or Xmodem downloads
(see “BOOTP and TFTP Protocols” on page 1-9 and “Xmodem Protocol” on page 1-9).
Note: A total or partial failure of the EMU-830 affects only the centralized management capabilities of the
system, it does not affect the DSL circuits deploye d in the shelf. In case of EMU-830 failure, the HDSL cards
can be managed directly from their front panel V.24 Craft port. To use the local management RS-232
interface of an HDSL card it is necessary to remove the EMU-830 from the shelf. To manage a G.SHDSL
card using an RS-232 interface, it is not required to remove the EMU-830 from the shelf.
MULTISHELF TAO
Multishelf TAO is supported through the EMU-830 front panel V.24 console port and provides an asynchronous,
maintenance terminal, auto-baud interface where you can:
• Monitor all shelf and DSL circuit alarms through a single common screen
• Communicate to a selected shelf and DSL card using the standard line unit console menus
• Set up network configuration parameters and SNMP parameters
• Configure the common equipment and shelf-wide alarms
Figure 1-2 on page 1-4 illustrates local management of a single shelf using TAO. The shelf communicates with the
local terminal (or PC) through the EMU-830 V.24 console port. Figure 1-3 on page 1-4 illustrates remote
management of multiple shelves at two sites using Multishelf TAO. Up to 32 shelves at each site are connected over
a LAN. The IP address and subnet mask are configured to place all shelves at one site on the same subnet. Each
multishelf network communicates with the common network management station over the dial-up Public Switched
Telephone Network (PSTN).
Multishelf TAO is also supported using Telnet to 10BaseT port of an EMU-830.
LTPE-UM-3159-02 1-3
Chapter 1: Overview September 25, 2006
Exchange
Switch
Figure 1-2. Local Management of a Single Shelf Using RS-232/Telnet
Network Management Station
PC running Telnet
Client/StarGazer
Ethernet
Network
WorldDSL
Shelf
To EMU
10Base-T
port
PC running
Telnet Client
Network Management Station
VT-100 dumb terminal
or PC with terminal
emulation software
Modem
PSTN
VT100 dumb
PC with terminal
emulation software
Up to 32 shelves linked
over Ethernet network
DSL Lines
terminal or
Ethernet Hub/
Switch
NTU/STU-R
NTU/STU-R
To EMU Console port
from PC serial port
Printer
EMU
10Base-T
Port
Modem connected to
console port of any EMU
Modem
GSM
Base Station
Video
Conference
PBX
DSL
Lines to
NTUs/
STU-Rs
DSL
Lines to
NTUs/
STU-Rs
DSL
Lines to
NTUs/
STU-Rs
Exchange Office 2Exchange Office 1
DSL
Lines to
NTUs/
STU-Rs
DSL
Lines to
NTUs/
STU-Rs
DSL
Lines to
NTUs/
STU-Rs
Modem
Modem connected to
console port of any EMU
Figure 1-3. Remote Management of Multiple Shelves at Two Sites Using Multishelf TAO
The Multishelf TAO firmware allows the DSL circuits in a single shelf or a network of shelves to be managed from a
single point-of-access (the EMU-830 console port of one shelf or using a Telnet session to one EMU-830). The
alarm status for each shelf in a multishelf network can be viewed on a single Network screen (Figure 1-4 on page 1-
5), and the alarm status of each DSL circuit in a selected shelf can be viewed on a single Main Menu screen (Figure
1-5 on page 1-5). Each EMU-830 constantly monitors the DSL cards in its shelf for alarm conditions and
automatically updates the alarm status.
From the T AO Network screen (Figure 1-4 on p age 1-5) , you can access any shelf in the network and then, from the
Main Menu screen (Figure 1-5 on page 1-5), log into any DSL card installed in the shelf. Logging into an DSL card
provides access to that card’s maintenance menus and is equivalent to connecting a terminal directly to the Craft
port on the HDSL card.
Note: HDSL cards cannot be directly managed from their front-panel craft port when the EMU-830 is
installed in the shelf. G .SHDSL (UTU-91x an d WD92xGx) cards can be managed from their front-p anel craft
port when the EMU-830 is installed in the shelf. Telnet can also be used to manage multiple EMU-830s
using multishelf TAO in the same lo gical IP networ k.
1-4 LTPE-UM-3159-02
September 25, 2006 Chapter 1: Overview
Figure 1-4. Multishelf TAO Network Screen
Figure 1-5. Multishelf TAO Main Menu Screen
A multishelf network is created by connecting the local area network (LAN) to the 10BASE-T Ethernet connector
available on a shelf. Each shelf must have an EMU-830 management unit installed. A VT100 terminal (or PC) is
connected either locally or remotely (through modems), or through Telnet access to the console port of one EMU in
the network. The shelf containing this EMU is called the local shelf. The local shelf coordinates communication with
all other shelves in the network, which are called the remote shelves.
It is not necessary for you to explicitly identify each shelf in the netwo rk, as the local she lf automatically discovers
them. You must, however, pre-configure the EMU in each shelf with a unique IP address and subnet mask to place
all the shelves on the same subnet.
Note: Shelf networks cannot be connected through a router because the local shelf uses UDP-broadcast
messages as a mechanism to automatically discover other shelves in the network, and routers generally
filter these broadcasts. For connecting multiple devices, use an Ethernet hub or switch instead.
LTPE-UM-3159-02 1-5
Chapter 1: Overview September 25, 2006
In a remotely managed configuration, an external modem must be connected to the EMU-830 front panel V.24
(RS-232) console port. If enabled, alarm conditions cause ASCII messages to be transmitte d autonomously over the
dial-up network. These messages can be displayed on a monitor or sent directly to a printer. This provides the
network operator immediate notification of problems. The operator can then initiate a remote TAO session with the
local shelf to further diagnose and correct the problem.
The EMU-830 and the DSL card firmware can be easily upgraded using the Upload utility from the T AO Main menu.
This utility uses TFTP and Xmodem protocols.
A proprietary software download protocol per mits firmware to be downloaded to any unit (EMU or DSL line card) in a
multishelf T AO network. This protocol is supported by a special ADC a pplication program tha t can run on a PC. The
PC connects to the front panel RS-232 V.24 console port of one of the EMUs in the network.
Note: The Multishelf T AO firmware and SNMP age nt are factory loaded on all EMU-830 management units.
SNMP
SNMP (Simple Network Management Protocol) is an application layer protocol of the Internet suite of proto cols,
commonly referred to as TCP/IP (after the two core protocols⎯Transmission Control Protocol and Internet
Protocol), and is designed to be an "open" (non-proprietary) network management technolog y capa ble of managing
internetworking equipment from multiple vendors. SNMP is formally specified in a series of related RFC (Request
For Comment) documents from the Internet Engineering Task Force (IETF). The WorldDSL EMU-830 implements
SNMP version 1. Communications standards supported in Version 1 of the SNMP standard include IP, User
Datagram Protocol (UDP), Internet Control Message Protocol (ICMP), and Address Resolution Proto col (ARP). T wo
other protocols, Boot Protocol (BOOTP) and Trivial File Transfer Protocol (TFTP), are also included to support IP
address management and download of EMU-830 code over the network.
In an SNMP managed network, each WorldDSL shelf is considered a managed node and contains an SNMP
software agent that resides in the EMU-830. The software agent pro vides the operating kernel, SNMP protocols,
transport protocols, and management information. Multiple shelves, each of which deploy up to 16 DSL links, can be
centrally managed from a single SNMP-based Network Management Station. Each DSL link consists of an LTU/
STU-C unit installed in the shelf, a remote NTU/STU-R unit, and possibly one or two mid-span doublers. Doublers
are currently supported only with HDSL (e.g., LTU-804, UTU-804) line cards. A link is managed as one DSL system
by SNMP.
SNMP access is provided over two types of interfaces:
• SNMP through LAN. An interface using an Ethernet port (10BASE-T) on the WorldDSL shelf that supports
UDP over IP.
• SNMP through SLIP. An out-of-band (or dial-up) serial interface using the RS-232/RS-485 configurable SLIP
port on the WorldDSL shelf, which supports IP over a SLIP at a maximum 19.2k baud rate.
The network of WorldDSL shelves can be managed by one or more SNMP management stations at the same time
over either of the SNMP interfaces. Management can be performed through the 10BASE-T Ethernet port and the
RS-232/RS-485 SLIP port simultaneously. StarGazer manages WorldDSL shelves using SNMP through LAN.
Figure 1-6 on page 1-7 shows a network of WorldDSL shelves managed by SNMP through LAN and SNMP
through SLIP.
STU-C and STU-R terminology is used with the G.SHDSL WD92xGx line cards.
1-6 LTPE-UM-3159-02
September 25, 2006 Chapter 1: Overview
Network Management Station
Unix workstation or PC running SNMP
Management Station software/StarGazer
Ethernet LAN
Ethernet
Network
SNMP
via
LAN
Site #1
Ethernet LAN
WorldDSL Shelf
WorldDSL Shelf
NTU/STU-R
Managed DSL
link
Site #2
Ethernet LAN
WorldDSL Shelf
WorldDSL Shelf
WorldDSL Shelf
Figure 1-6. WorldDSL Shelves Managed by SNMP through LAN and SNMP through SLIP
SNMP MANAGEMENT INFORMATION BASE
Modem
Site #3
WorldDSL Shelf
Modem
RS-232/485
SLIP Port
PSTN
SNMP
SLIP
Site #3
via
Modem
RS-232/485
SLIP Port
WorldDSL Shelf
Simple Network Manage Protocol (SNMP) specifies how to send information between a network management
station and managed devices on a network. Managed devices run a program called an agent. The agent interprets
SNMP requests and responds to them. The management station communicates with the agents in the managed
devices to:
• set configurations
• read configurations
• read status parameters
Management Information Bases (MIBs) define these configurations and status parameters. The Internet
Engineering Task Force (IETF) specifies standard MIBs for certain types of devices, ensuring any generic SNMP
application can manage them. Other vendor-specific MIBs such as those used by ADC, define the configuration,
status, trap, and performance parameters unique to the WorldDSL product line.
The EMU-830 performs as a proxy agent when managing line units. Each managed device has configuration,
status, and statistical information that defines its functionality and operation capabilities.
There are a total of six MIB files that define the SNMP management interface of the ADC W orldDSL pr oduct. These
files should be copied into the Network Manager Client MIB Subdirectory. Once copied onto the desired drive they
can be easily accessed by the Network Manager’s MIB compiler. The six MIB files are named as follows:
LTPE-UM-3159-02 1-7
Chapter 1: Overview September 25, 2006
IMPORTANT
!
• RFC 1213 MIB II. The Internet-standard MIB for network management of TCP/IP-based internets. It defines
objects common to all devices that support SNMP. This includes objects related to generic configuration such
as the device's name (sysName), objects related to the transport protocols (IP, TCP, ICMP, etc.), and a description of the chassis' interface ports (data p orts as well as HDSL ports).
• pgmibhd.mib (Common MIB). An enterprise MIB (that is, unique to ADC products) that defines the top-level
branch structure for all ADC products including the W or ldDSL pro duct lin e.
• pgetsi.mib (ETSI Interface MIB). Enterprise MIB containing management objects for the shelf common equipment (chassis and EMU-830) and DSL circuit elements (LTUs/STU-Cs, NTUs/STU-Rs, doublers), excluding
DSL performance related objects which are contain ed in the DSL MIB. Examples include the EMU-830 LED status (emuLedSt atus), an LTU/STU-C V.35 port data rate (ltuDataPrtTimeSlots), and PTM managed items.
• pghdsl.mib (DSL MIB). Enterprise MIB containing objects related to the
performance of the DSL links, such as 15-minute and 24-hour performance history.
• pgagtmib.mib (SNMP Agent MIB). MIB containing management objects to control and configure the operation
of the IP and SNMP parameters. Examples include the EMU IP address, boot and image mode, and trap
receiver setup.
• pgetsitr.mib (ETSI SNMP Trap MIB). MIB containing a subset of the RFC 1215 common traps as well as ADC
enterprise traps (see “Traps” below for details).
These MIB files must be used with the management unit software release.
TRAPS
Traps are autonom ous, inter rup t-d rive n messages sent from a managed node (shelf) to a management station to
indicate the occurrence of an extraordinary event (such as alarms or a link going down) or a configuration change
(such as changes in alarm severity settings, circuit IDs, or loopback modes). When an eve nt occurs, the shelf sends
a trap to the management station, which polls the shelf to determine the nature of the event. Circuit Name is also
included in the trap.
A managed node (shelf) can be configured to send trap s to up to three trap receiver s (that is, management stations).
The WorldDSL traps are listed in Table 1-2.
T a ble 1-2 . W orldDSL Traps
Traps Definition
Cold Start MIB II standard trap indicating that the EMU-830 has come on-line.
Authentication failure MIB II standard trap indicating that the agent received an SNMP message with
an improper community string. For example, an SNMP-managed device
assigned to the community “ETSI” receives a message for a device in the
“HGIS” community.
Link up/link down MIB II standard trap indicating a loss of signal condition at one of the
transmission interfaces (E1 or DSL).
DSL circuit alarm ADC enterprise trap sent at the occurrence of an alarm condition on an DSL
circuit if that alarm is of a greater severity than any existing alarms on the
same circuit. Separate trap messages are sent for each DSL circuit in
the shelf.
1-8 LTPE-UM-3159-02
September 25, 2006 Chapter 1: Overview
Traps Definition
Power supply failure Enterprise trap that indicates the failure of a -48 V shelf power supply input.
Multiple DSL loops down Enterprise trap used to indicate when the programmable threshold of the
number of downed DSL loops in the shelf has been exceeded.
System configuration
change
Line unit configuration
change
Enterprise trap that signals when a change has occurred in the physical
configuration of the system, such as the insertion or removal of LTUs/STU-Cs.
Enterprise trap that signals when a change has occurred in the configur ation of
a line unit (includes alarm severity settings, circuit IDs, and loopback modes).
BOOTP AND TFTP PROTOCOLS
BOOTP is a UDP/IP-based protocol that allows the EMU-830 to configure itself dynamically without supervision.
BOOTP provides a means for the EMU-830 to learn its protocol configuration, including:
• Local IP address and subnet mask
• Boot Server IP address
• Name of image file to be loaded into memory and executed
• Default router addresses
The BOOTP and TFTP protocols included with the EMU agent software facilitate these methods of software loading
and network configuration.
The EMU can be configured to learn its protocol configuration at reset from the network (by sending a BOOTP
broadcast message that is recognized by the BOOTP server) or from the NVRAM on the EMU. BOOTP provides a
simple means of unit configuration. It also allows the network administrator to dynamically allocate the IP address for
the EMU.
The EMU can also be configured to know where it should get its operational code (image file): either from the
BOOTP server using TFTP or from the flash RAM on the EMU. This allows the EMU to always download the most
recent image file at power-on or reset, and it lets the netw ork administrator keep the image file in a sing le location for
use by all the WorldDSL shelves.
XMODEM PROTOCOL
The Xmodem protocol permits software to be downloaded to any EMU or line unit (local or remote) from a PC
connected to the EMU front panel V.24 (RS-232) console port.
Associated Upload menus and screens allow selection of any shelf in the network and the EMU o r any line unit in
the shelf as the upload target.
The EMU and each line unit is reset and runs the new code following the software download.
Do not abort the download procedure when an XModem transfer is in progress.
LTPE-UM-3159-02 1-9
Chapter 1: Overview September 25, 2006
ALARMS
The EMU-830 constantly monitors each of the DSL cards for alarm conditions. When so configured, the EMU-830
provides autonomous dial-out reporting of alarms to remote management stations and printers (see “Autonomous
Dial-out Alarm Reporting” on page 1-10). The EMU-830 List 6A monitors the external 2 MHz clock supplied to the
shelf (see “External Shelf Clock Backup Circuit” on page 1-11).
The alarm status is reported in several ways: alar m LEDs, alarm relays, terminal scree ns, SNMP trap s, and dial-out
reporting. DSL card alarms can be specified as major, minor, or disabled. Shelf alarms can be specified as major,
minor, critical, or disabled. A major alarm is asserted when an alarm condition occurs in a card or shelf tha t is
specified as major. A minor alarm is asserted when an alarm condition occurs in an DSL card or shelf that is
specified as minor. Only shelf alarms can be classified as critical. A critical alarm is asserted when any shelf alarm
occurs that is specified as critical. Use the TAO Main menu to login to an DSL circuit to configure the DSL card
alarms (see “Config Menu” on page 3-8).
Six alarm relays are provided for use with external alarm indicators such as lights or buzzers. Each relay is a form C
type which provides three contacts: Common, Normally Open, and Normally Closed. An alarm relay diagram is
shown in Figure 1-7.
Normally Closed
Normally Open
Common
Figure 1-7. EMU-830 Alarm Relay Diagram
The six alarm relays are:
1. Critical Visual
2. Critical Audible
3. Major Visual
4. Major Audible
5. Minor Visual
6. Minor Audible
Additionally, a System ID relay is activated when any minor, major, or critical alarm is active in the shelf.
The Critical Visual and Critical Audible alarm relays and the System ID relay operate in the fail-safe mode. That is,
when power is lost to the EMU-830, the Common contact connects to the Normally Open contact.
The ACO (Alarm Cut-Off) function is used to retire active alarms by resetting the minor, major, and critical alarm
relays (both visual and audible). The Shelf Alarms menu (pageC-16) can be used to program which alarm relays
will and will not be retired when ACO is engaged. ACO can be activated by pressing the front panel ACO switch or
by connecting the external ACO input (pin 25 of the Alarm connector on a shel f) to ground. ACO is deactivated when
there are no alarms or when a new alarm occurs.
AUTONOMOUS DIAL-OUT ALARM REPORTING
When connected through a modem to a dedicated telephone line, the EMU-830 can dial-out to a remote
management station or printer to autonomously re port DSL card a nd shelf alar ms. For the EMU-830 to p erform this
function, you must first configure the EMU Modem Parameters, set the severity of the Shelf Alarms, and enable the
Remote Alarm Reporting option (see page C-14 through page C-17).
1-10 L TPE-UM-3159-02
September 25, 2006 Chapter 1: Overview
E
l
EXTERNAL SHELF CLOCK BACKUP CIRCUIT
The EMU-830 List 6A includes a backup circuit for the 2.048 MHz external shelf clock. This circuit will continue to
provide a 2.048 MHz clock to the DSL cards in the event the 2.048 MHz external shelf clock is lost. The software
reports the status of this circuit and allows the user to set th e seve rity of the alar m ge nerated when the clock is lost.
A block diagram of the clock backup circuit is shown in Figure 1-8 on page 1-11.
Under normal operation the external shelf clock and the backup circuit synchronize their respective clocks through
the EMUs phase-locked loop (PLL) device. In the event the external shelf clock is lost, the oscillator in the backup
circuit will continue to supply the 2.048 MHz clock. A Loss of External Clock alarm is reported to the management
station.
xterna
Backplane
EMS-83x Shelf
Clock
input
Slot 1 Slot 16
LTU/STU-C
LTU/STU-C
Slot 17
Reference
PLL
2.048 MHz
Source
Oscillator
EMU-830 List 6
Figure 1-8. External Shelf Clock and EMU-830 List 6A Backup Circuit
LTPE-UM-3159-02 1-11
Chapter 1: Overview September 25, 2006
1-12 L TPE-UM-3159-02
Chapter
2
INSTALLATION
This section describes the procedures for installing the EMU-830.
Note: Each shelf in a Multishelf TAO network must have an EMU-83 0 management unit inst alled.
Inserting and removing the EMU-830 from a shelf will not affect the operation of the DSL cards installed in
the shelf.
An EMU-830 failure will not affect the operation of the DSL cards installed in the shelf.
EMU JUMPER SETTINGS
EMU-830s are jumper configurable for an RS-232 or RS- 485 SLIP port interface. EMUs have an RS-232 factory
setting.
If you use the SLIP port to manage a shelf or shelves, you must configure the SLIP port interface before installing
the EMU-830. Do one of the following:
• For an RS-232 SLIP port interface, install the jumper on two-pin header connector P6 (Figure 2-1). This is the
factory default setting. Set the SLIP port baud rate as instructed in “Configure SNMP Operation Over SLIP” on
page 3-10.
• For an RS-485 SLIP port interface, remove the jumper from two-pin header connector P6 (Figure 2-1). Set the
SLIP port baud rate as instructed in “Configure SNMP Operation Over SLIP” on page 3-10.
RS-232
P6
Figure 2-1. Location of the SLIP Header Connector P6 on the EMU-830
LTPE-UM-3159-02 2-1
Loading...