ADC WorldDSL EMU-830 Manuale utente

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

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

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 regis-

tered 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 consent 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 disclaimer of

liability applies to all products, publications and services during and after the warranty period.

Revision Release Date Revisions Made

01 September 30, 2004 Initial release.

02 September 25, 2006 Technical update for L4A/L6A.

Table of Contents

LTPE-UM-3159-02 iii

Chapter 1: Overview ....................................................................................................... 1-1

New Features ...........................................................................................................................1-1

Standard 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

Table of Contents September 25, 2006

iv LTPE-UM-3159-02

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

List of Figures

LTPE-UM-3159-02 v

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 Two Sites 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

List of Figures September 25, 2006

vi LTPE-UM-3159-02

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

List of Tables

LTPE-UM-3159-02 vii

Table 1-1.EMU-830 List 4A and 6A Front Panel Components ...........................................1-2

Table 1-2.WorldDSL 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

List of Tables September 25, 2006

viii LTPE-UM-3159-02

LTPE-UM-3159-02 ix

ABOUT THIS MANUAL

INTRODUCTION

This manual contains information on the ADC

®

WorldDSL

™

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:

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.

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

Describes how to navigate management unit screens and

configure shelf, alarm, performance, and system settings.

Appendix A: Specifications Summarizes alarm, power, and card compatibility requirements

for the EMU-830.

Appendix B: Product Support Provides information on how to contact the ADC Technical

Support group.

Glossary Defines abbreviations and acronyms for the ADC WorldDSL

product family.

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

About This Manual September 25, 2006

x LTPE-UM-3159-02

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 dam-

aged 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 container.

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

Reader Alert Meaning

LTPE-UM-3159-02 1-1

1

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.

STANDARD FEATURES

Standard features of the EMU-830 include:

• 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-pair 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 reports

• 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)

• Traps Generation

Note: DSL is used throughout the remaining pages of this document when referring to both HDSL and

G.SHDSL.

Chapter 1: Overview September 25, 2006

1-2 LTPE-UM-3159-02

FRONT PANEL

Figure 1-1 and Table 1-1 identify and describe the front-panel components of the EMU-830 Lists 4A and 6A.

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.

POWER

FAIL

EXT COMM

CRITICAL

MAJOR

MINOR

ALM

ACO

RESET

V.24

EMU-830

Reset switch

V.24 (RS-232) console por

t

Alarm cut-off LED

and switch

Alarm LEDs

System status LEDs

September 25, 2006 Chapter 1: Overview

LTPE-UM-3159-02 1-3

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).

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.

Reset switch Resets the EMU-830 hardware.

V.24 (RS-232) console

port

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.

a. It is normal for the Fail LED to illuminate briefly when power is applied to the EMU-830.

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 deployed 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.

Name Mode Function

Chapter 1: Overview September 25, 2006

1-4 LTPE-UM-3159-02

Figure 1-2. Local Management of a Single Shelf Using RS-232/Telnet

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 TAO Network screen (Figure 1-4 on page 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 and WD92xGx) cards can be managed from their front-panel 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 logical IP network.

Exchange

Switch

VT100 dumb

terminal or

PC with terminal

emulation software

DSL Lines

NTU/STU-R

PBX

Video

Conference

GSM

Base Station

To EMU Console port

from PC serial port

WorldD

S

L

Shelf

PC running

Telnet Client

To EMU

10Base-T

port

VT-100 dumb terminal

or PC with terminal

emulation software

Network Management Station

Exchange Office 2Exchange Office 1

Modem

DSL

Lines to

NTUs/

STU-Rs

DSL

Lines to

NTUs/

STU-Rs

Modem connected to

console port of any EMU

Up to 32 shelves linked

over Ethernet network

Modem connected to

console port of any EMU

Printer

PSTN

Modem

DSL

Lines to

NTUs/

STU-Rs

DSL

Lines to

NTUs/

STU-Rs

DSL

Lines to

NTUs/

STU-Rs

DSL

Lines to

NTUs/

STU-Rs

PC running Telnet

Client/StarGazer

Network Management Station

Ethernet Hub/

Switch

Ethernet

Network

EMU

10Base-T

Port

September 25, 2006 Chapter 1: Overview

LTPE-UM-3159-02 1-5

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 network, as the local shelf 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.

Chapter 1: Overview September 25, 2006

1-6 LTPE-UM-3159-02

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 transmitted 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 TAO Main menu.

This utility uses TFTP and Xmodem protocols.

A proprietary software download protocol permits firmware to be downloaded to any unit (EMU or DSL line card) in a

multishelf TAO network. This protocol is supported by a special ADC application program that 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.

SNMP

SNMP (Simple Network Management Protocol) is an application layer protocol of the Internet suite of protocols,

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 technology capable 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 Protocol (ARP). Two

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 provides 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.

Note: The Multishelf TAO firmware and SNMP agent are factory loaded on all EMU-830 management units.

STU-C and STU-R terminology is used with the G.SHDSL WD92xGx line cards.

September 25, 2006 Chapter 1: Overview

LTPE-UM-3159-02 1-7

Figure 1-6. WorldDSL Shelves Managed by SNMP through LAN and SNMP through SLIP

SNMP MANAGEMENT INFORMATION BASE

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 WorldDSL product. 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:

Site #2

Site #1

NTU/STU-R

Ethernet LAN

Ethernet

Network

Ethernet LAN

Managed DSL

link

SNMP

via

SLIP

WorldDSL Shelf

Network Management Station

Unix workstation or PC running SNMP

Management Station software/StarGazer

Ethernet LAN

Modem

Site #3

Modem

RS-232/485

SLIP Port

WorldDSL Shelf

Site #3

Modem

RS-232/485

SLIP Port

WorldDSL Shelf

PSTN

SNMP

via

LAN

Chapter 1: Overview September 25, 2006

1-8 LTPE-UM-3159-02

• 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 descrip-

tion of the chassis' interface ports (data ports 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 WorldDSL product line.

• pgetsi.mib (ETSI Interface MIB). Enterprise MIB containing management objects for the shelf common equip-

ment (chassis and EMU-830) and DSL circuit elements (LTUs/STU-Cs, NTUs/STU-Rs, doublers), excluding

DSL performance related objects which are contained in the DSL MIB. Examples include the EMU-830 LED sta-

tus (emuLedStatus), 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).

TRAPS

Traps are autonomous, interrupt-driven 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 event 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 traps to up to three trap receivers (that is, management stations).

The WorldDSL traps are listed in Table 1-2.

Table 1-2. WorldDSL Traps

!

IMPORTANT

These MIB files must be used with the management unit software release.

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.

September 25, 2006 Chapter 1: Overview

LTPE-UM-3159-02 1-9

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 network administrator keep the image file in a single 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 or 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.

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

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.

Line unit configuration

change

Enterprise trap that signals when a change has occurred in the configuration of

a line unit (includes alarm severity settings, circuit IDs, and loopback modes).

Do not abort the download procedure when an XModem transfer is in progress.

Traps Definition

Chapter 1: Overview September 25, 2006

1-10 LTPE-UM-3159-02

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: alarm LEDs, alarm relays, terminal screens, SNMP traps, 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 that 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.

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 (page C-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 shelf) 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 report DSL card and shelf alarms. For the EMU-830 to perform 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).

Normally Closed

Normally Open

Common

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