Size:
2.13 Mb
Download

DL3800E

Inverse Multiplexer

User’s Guide

Part 098-30380-01 Rev F

July 9, 2001

COPYRIGHT AND TRADEMARKS

Copyright © 2001, Quick Eagle Networks

World copyright reserved. No part of this publication may be stored in a retrieval system, transmitted, or reproduced in any way, including but not limited to photocopy, photograph, magnetic, chemical, or other record, without the prior agreement and written permission of Quick Eagle Networks.

PRODUCT LIMITED WARRANTY

Quick Eagle Networks warrants to buyer that any unit shipped to buyer, under normal and proper use, will be free of defects in material and workmanship for a period of twenty-four (24) months from the date of shipment to buyer. This limited warranty is void if there is any unauthorized modification or repair of a unit by anyone other than Quick Eagle Networks or its authorized agent.

THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES. EXCEPT AS OTHERWISE PROVIDED HEREIN, QUICK EAGLE NETWORKS DISCLAIMS ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions may not allow the exclusion of implied warranties, so some of the above exclusion may not apply to you.

For further information about warranty and service on your Quick Eagle Networks product, visit our Web site at www.quickeagle.com.

REMEDIES AND LIMITATIONS OF LIABILITY

All claims for breach of the foregoing warranty shall be deemed waived unless notice of such claim is received by Quick Eagle Networks during the applicable warranty period and unless the items claimed to be defective are returned to Quick Eagle Networks within thirty (30) days after such claim.

Failure of Quick Eagle Networks to receive written notice within the specific period shall constitute a waiver by buyer of any such claim irrespective of whether the facts giving rise to such a claim shall have then been discovered or whether processing, further manufacturing, other use or resale of such items shall have taken place.

ii

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

Buyer's exclusive remedy, and Quick Eagle Networks' total liability, for any and all losses and damages arising out of any cause whatsoever (whether such cause is based in contract, tort [including negligence], strict liability, or otherwise) shall in no event exceed the repair price of the unit from which such cause arises. In no event shall Quick Eagle Networks be liable for incidental, indirect, special or consequential damages resulting from any SUCH CAUSE EVENT WHETHER OR NOT QUICK EAGLE NETWORKS IS AWARE OF THE POSSIBILITY OF SUCH DAMAGES. Quick Eagle Networks may, at its sole option, either repair or replace defective goods or work, and shall have no further obligation to buyer. Return of the defective items to Quick Eagle Networks shall be at buyer's risk and expense.

Quick Eagle Networks shall not be liable for failure to perform its obligations if such results directly or indirectly from, or is contributed to by, any act of God or of buyer; riot; fire; explosion; accident; flood; sabotage; epidemics; delays in transportation; lack of or inability to obtain raw materials, components, labor, fuel or supplies; governmental laws, regulations or orders; or labor trouble, strike, or lockout (whether or not such labor event is within the reasonable control of Quick Eagle Networks); other circumstances beyond Quick Eagle Networks' reasonable control, whether similar or dissimilar to any of the foregoing.

DISCLAIMER

Quick Eagle Networks makes no representation of warranties with respect to the contents of this document and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Further, Quick Eagle Networks reserves the right to revise this publication and to make changes in it from time to time without obligation to notify any person or organization of such revision or changes.

Front Matter

iii

RIGHTS TO SOFTWARE

Quick Eagle Network ("QEN") software products are proprietary to QEN and shall remain the property of QEN. Other than the limited, nonexclusive and non-transferable license granted to END USER to use the products internally, on a single CPU, for the purposes set forth herein, no rights in or to any QEN software products or documentation are granted to END USER. END USER is prohibited from duplicating, reproducing, displaying, printing, disassembling, decompiling, reverse engineering or analyzing for reverse engineering, distributing, sublicensing, disclosing or otherwise transferring possession of or making available copies of QEN software products or documentation, or any part or portion thereof. END USER is also prohibited from making any modifications, additions, adaptations, enhancements, improvements, changes or derivative works of any QEN software product or documentation, or any part or portion thereof. QEN software products may include software (including source code) of Connexant Systems, Inc. and NetScout. The limitations on the license and prohibitions set forth above shall apply equally to all such third party software included in any QEN software products.

ISO COMPLIANCE

Products Manufactured Under

An ISO 9001 Certified

Quality Management System

YEAR 2000 COMPLIANCE

Quick Eagle Networks warrants that products offered as generally available for sale and shipped on or after February 1, 1999 will meet “Year 2000 compliant” requirements. In addition, software released in and after 1998 meets the Year 2000 compliance criteria. For more information on Year 2000 compliance, see our web site information at www.quickeagle.com and click on the Year 2000 compliance icon.

iv

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

Malfunction of the equipment: In the event this equipment should fail to operate properly, disconnect the unit from the telephone line. Try using another FCC approved telephone in the same telephone jack. If the trouble does not persist and appears to be with this unit, disconnect the unit from the telephone line and discontinue use of the unit until it is repaired. Please note that the telephone company may ask that you disconnect this equipment from the telephone network until the problem has been corrected or until you’re sure that the equipment is not malfunctioning.

WARNING: The DL3800 Inverse Multiplexer complies with FCC Part 15 of the Federal Communications Commission (FCC) Rules concerning radio frequency emissions for Class A computing devices. The following section is required by the FCC.

CAUTION: In accordance with FCC Part 15 section 15.21, changes or modifications made by the buyer that are not expressly approved by Quick Eagle Networks could void the buyer’s authority to operate this equipment. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

INTERNATIONAL COMPLIANCE

Industry Canada

This Class A digital device meets all requirements of the Canadian

Interference-Causing Equipment Regulations.

Cet appareil numérique de la classe A respecte toutes les exigences du

Règlement sur le matériel brouilleur du Canada.

Front Matter

v

VCCI

NOTE: As per the Voluntary Control Council for Interference by Information Technology Equipment (VCCI), the DL3800E Inverse Multiplexer complies with VCCI Class 1 ITE. This equipment is in the 1st Class category (information equipment to be used in commercial and/or industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference by Information Technology Equipment aimed at preventing radio interference in commercial and/or industrial areas. Consequently, when used in a residential area or in an adjacent area thereto, radio interference may be caused to radios and TV receivers, etc. Read the instructions for correct handling.

REGULATORY COMPLIANCE

European harmonized standards 73/23/EEC/, 91/31/EEC, 89/336/EEC, 93/68/EEC, and 91/263/EEC

UL 1950 3rd Edition

CAN/CSA C22.2 No. 950-95

Comision Federal de Telecommunicationes (Mexico)

CISPR 22 Level B (EN 55022)

vi

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

Table of Contents

 

 

Preface

xvii

 

 

 

 

 

 

 

 

 

 

 

 

 

Audience

xvii

 

 

Organization

xvii

 

 

Conventions

xviii

 

 

 

Symbols

xviii

 

 

 

Typography

xix

 

 

Quick Eagle Networks Technical Support

xx

 

 

Returning a Unit

xx

 

 

Send Us Your Comments

xxi

 

 

Document Change Record

xxi

Chapter 1, Quick Install Guide

1-1

Purpose

1-1

Configuration

1-1

 

Equipment Needed

1-1

 

Setup

1-2

 

 

Terminal Log On

1-2

 

 

Terminal Configuration

1-2

 

 

Unit Configuration

1-2

 

 

DTE Configuration

1-2

 

 

Network Configuration

1-3

 

 

Save Configuration

1-3

Chapter 2, Introduction

2-1

System Overview

2-1

Product Features

2-2

 

System Features

2-2

 

System Benefits

2-3

vii

 

 

 

 

 

 

 

 

Application

2-3

 

Functional Description

2-4

 

 

 

Signal Flow

2-4

 

 

 

E1 Port Crossover Detection

2-5

 

 

 

Overhead Functions

2-6

Chapter 3, Installation

3-1

Installation

3-1

Mounting

3-2

 

Rack Mounting

3-2

 

Desk Operation And Stacking

3-2

Power Cables And Connections

3-3

 

AC Power Connection

3-3

 

DC Power Connection

3-3

E1 Network Connection

3-5

DTE Cable And Connection

3-5

ASCII Terminal and SNMP Connection

3-5

 

Direct Connection

3-6

 

Modem Connection

3-6

 

Telnet Connection

3-6

 

Daisy Chaining

3-7

Chapter 4, Terminal Interface

4-1

Log In/Log Off

4-1

Terminal Operation Overview

4-2

 

General Menu Flow

4-2

 

Screen Description

4-2

Inverse Multiplexer Main Menu Commands

4-4

Select Local/Remote

4-4

Alarms and Status

4-5

 

Statistics

4-11

 

Event History

4-15

viii

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

 

 

 

 

 

 

 

 

 

Configuration

4-17

 

 

Unit Configuration

4-17

 

 

DTE Configuration

4-20

 

 

Network Configuration

4-25

 

 

Network Thresholds

4-28

 

 

Save Configuration

4-30

 

System Utilities

4-30

 

 

Software Download

4-31

 

 

Software Download Options

4-33

 

 

RAM Software Options

4-34

 

 

Delete Entire Unit Configuration (revert to factory config)

4-35

 

 

Login Configuration

4-37

 

 

SNMP Configuration

4-39

 

 

In-Band SNMP to Remote

4-42

 

 

Save Configuration

4-42

 

Tests

4-43

 

DTE/Network Loopback

4-44

 

Payload Loopback

4-44

 

Line Loopback

4-44

 

Local Loopback

4-44

 

Remote Loopback Detection

4-45

 

Manual Network Restoration

4-46

 

Logout

4-47

Chapter 5, Front Panel Interface

5-1

General

5-1

Display Overview

5-1

Button Overview

5-1

 

Exit Button

5-2

 

Up Arrow and Down Arrow Buttons

5-2

 

Enter Button

5-2

ix

 

 

 

 

 

 

 

 

 

Front Panel LEDs

5-3

 

 

 

Access Levels And Protected Mode

5-4

 

 

Power Up And Reset

5-5

 

 

Top Menu

5-5

 

 

Select Remote/Select Local

5-7

 

 

Display Menu

5-7

 

 

 

Node (Common Equipment) Status

5-8

 

 

 

DTE Status

5-9

 

 

 

NET (1-8) Status

5-9

 

 

 

NET (1-8) Statistics

5-9

 

 

Test Menu

5-12

 

 

DTE Tests

5-14

 

 

 

 

DTE/NET Loopback

5-14

 

 

 

Network Tests (1-8)

5-15

 

 

 

Payload Loopback

5-15

 

 

 

Line Loopback

5-16

 

 

 

Local Loopback

5-16

 

 

Configuration Menu

5-17

 

 

 

Node Configuration

5-19

 

 

 

DTE Configuration Menu

5-24

 

 

 

Network Config

5-26

 

 

 

NET N Config

5-28

 

 

Network Thresholds

5-28

Chapter 6, Diagnostics

6-1

Equipment Return And Repair

6-1

Running Diagnostic Tests

6-1

 

DTE/Network Loopback Test

6-2

 

LOCAL Loopback Test

6-2

 

Payload Loopback and Line Loopback Tests

6-3

 

Possible Sources of Problems

6-3

Troubleshooting the DL3800E

6-3

x

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

 

 

 

 

 

 

 

 

 

Appendix A, Specifications

A-1

 

 

 

 

E1 Network Interface

A-1

 

External Clock Interface

A-1

 

DTE Interface

A-2

 

COMM PORT

A-2

 

NMS Port (SNMP)

A-2

 

Front Panel

A-3

 

Diagnostics

A-3

 

Power

A-3

 

Environmental

A-3

 

Physical /Connectors

A-4

 

External Alarm Contacts

A-4

Appendix B, Pinouts

B-1

Terminal Connection

B-1

DCE Connectors

B-1

Channel 1 Data Cable Pin Assignments

B-2

 

DB-25 to DC-37 Data Port Cable Pin Assignments

B-4

Communication Port Pin Assignments

B-5

 

RS-449, DC-37 to DB-25 DCE Cable Pin Assignments

B-5

E1 Network Pin Assignments

B-6

DB-25 to DE-9 Adapter Pinouts

B-6

X.21 to DB-25 Cable Pinouts

B-7

External Clock Connector Pin Assignments

B-7

Alarm Pinout

B-9

DC Power Connections

B-10

DTE Clock Rates

B-10

Appendix C, Factory Default Settings

C-1

 

 

Glossary

G-1

 

 

 

xi

 

 

 

 

 

 

Index

I-1

 

 

 

 

xii

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

List of Figures

 

 

Figure 1-1 DL3800E Inverse Multiplexer (front panel)

1-1

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2-1 DL3800E Inverse Multiplexer

2-1

 

 

 

 

 

 

Figure 2-2 Typical Application for DL3800E

2-3

 

 

 

 

 

 

Figure 2-3 DL3800E Functional Schematic

2-6

 

 

 

 

 

 

Figure 3-1 DL3800E Rear Panel

3-2

 

 

 

 

 

 

Figure 4-1 INVERSE MULTIPLEXER MAIN MENU

4-3

 

 

 

 

 

 

Figure 4-2 ALARMS AND STATUS MENU

4-5

 

 

 

 

 

 

 

Figure 4-3

STATISTICS MENU

4-11

 

 

 

 

 

 

Figure 4-4 NET STATISTICS MENU

4-12

 

 

 

 

 

 

Figure 4-5 Additional NET STATISTICS

4-13

 

 

 

 

 

 

Figure 4-6 EVENT HISTORY MENU

4-16

 

 

 

 

 

 

 

Figure 4-7

CONFIGURATION MENU

4-17

 

 

 

 

 

 

 

Figure 4-8

UNIT CONFIGURATION MENU

4-18

 

 

 

 

 

 

 

Figure 4-9

DTE CONFIGURATION MENU (V.35)

4-21

 

 

 

 

 

 

Figure 4-10 DTE CONFIGURATION MENU (RS449)

4-21

 

 

 

 

 

 

Figure 4-11 DTE CONFIGURATION MENU (X.21)

4-22

 

 

 

 

 

xiii

 

 

 

 

 

 

 

 

 

Figure 4-12 DTE CONFIGURATION MENU (HSSI)

4-22

 

 

 

 

Figure 4-13 Network Configuration Screen

4-26

 

 

 

 

Figure 4-14 Network Thresholds Configuration

4-29

 

 

 

 

Figure 4-15 SYSTEM UTILITIES MENU

4-30

 

 

 

 

Figure 4-16 SOFTWARE DOWNLOAD MENU

4-31

 

 

 

 

Figure 4-17 SOFTWARE UTILITIES MENU

4-36

 

 

 

 

Figure 4-18 LOGIN CONFIGURATION MENU

4-37

 

 

 

 

Figure 4-19 SNMP CONFIGURATION MENU

4-39

 

 

 

 

Figure 4-20 TESTS MENU

4-43

 

 

 

 

Figure 4-21 Loopbacks within the DL3800E unit

4-45

 

 

 

 

Figure 4-22 MANUAL NETWORK RESTORATION MENU

4-47

 

 

 

 

Figure 5-1 DL3800E Front Panel

5-1

 

 

 

 

Figure 6-1 TESTS MENU

6-2

 

 

 

 

Figure B-1 DC Power Connections

B-10

 

 

 

 

xiv

List of Tables

 

 

Table 4-1

Main Menu

4-4

 

 

 

 

 

 

 

 

 

 

 

 

Table 4-2 3800E Alarm Descriptions

4-5

 

 

 

 

 

 

Table 4-3 NET Statistics Items

4-13

 

 

 

 

 

 

 

Table 4-4

Alarm Level

4-16

 

 

 

 

 

 

Table 4-5 Node Configuration Options

4-18

 

 

 

 

 

 

Table 4-6 DTE Configuration Menu Options

4-23

 

 

 

 

 

 

Table 4-7 Network Configuration Menu Options

4-26

 

 

 

 

 

 

Table 4-8 Login Configuration Options

4-38

 

 

 

 

 

 

Table 4-9 SNMP Configuration Options

4-40

 

 

 

 

 

 

Table 5-1 Front Panel LEDs

5-3

 

 

 

 

 

 

Table 5-2 Net Statistics Menu Information Display

5-9

 

 

 

 

 

 

Table 5-3 Net Statistics Items

5-10

 

 

 

 

 

 

Table 5-4 Configuration Menu Items

5-18

 

 

 

 

 

 

Table 5-5 Node Configuration Menu Items

5-21

 

 

 

 

 

 

 

Table 5-6

Net Threshold Options and Values

5-29

 

 

 

 

 

 

 

Table 6-1

Troubleshooting

6-4

 

 

 

 

 

xv

 

 

 

 

 

 

 

 

Table B-1 COMM and NMS Port Pin Assignments

B-1

 

 

 

 

 

 

Table B-2 HSSI DCE Connector Pin Assignments

B-1

 

 

 

 

 

 

Table B-3 V.35, M-34 to DB-25 DTE Cable Pin Assignments

B-2

 

 

 

 

 

 

Table B-4 EIA-530, DB-25 to DB-25 DCE Conn. Pin Assignmts

B-3

 

 

 

 

 

 

Table B-5 DB-25 to DC-37 Data Port Cable Pin Assignments

B-4

 

 

 

 

 

 

 

Table B-6

RS-449, DC-37 to DB-25 DCE Cable Pin Assignments

B-5

 

 

 

 

 

 

 

Table B-7

Network Pin Assignments

B-6

 

 

 

 

 

 

 

Table B-8

DB-25 to DE-9 Pinouts

B-6

 

 

 

 

 

 

 

Table B-9

DB-25 to DB-15 Pinouts

B-7

 

 

 

 

 

 

Table B-10 External Clock Pinouts

B-7

 

 

 

 

 

 

 

Table B-11

Alarm Pinout

B-9

 

 

 

 

 

 

Table B-12 DTE Clock Rates

B-10

 

 

 

 

 

 

 

Table C-1

Unit Settings

C-1

 

 

 

 

 

 

 

Table C-2

DTE Settings

C-1

 

 

 

 

 

 

 

Table C-3

Network Settings

C-2

 

 

 

 

 

 

Table C-4 Network Threshold Settings

C-2

 

 

 

 

 

 

Table C-5 SNMP Configuration Settings

C-2

 

 

 

 

 

 

 

Table C-6

Test Settings

C-3

 

 

 

 

 

 

xvi

DL3800E Inverse Multiplexer User’s Guide —July 9, 2001

Preface

The DL3800E Inverse Multiplexer User’s Guide provides the information you need to install, test, operate, and manage the DL3800E Inverse Multiplexer.

AUDIENCE

This guide is prepared for network managers and technicians who are responsible for the installation of LAN-to-WAN equipment, and who are thoroughly familiar with the network topology in which the DL3800E Inverse Multiplexer is expected to operate.

ORGANIZATION

Chapter 1, “Quick Install Guide,” provides a concise installation procedure for most applications.

Chapter 2, “Introduction,” provides a description of the DL3800E Inverse Multiplexer system architecture, a discussion of features and benefits, and a sample application.

Chapter 3, “Installation,” provides guidelines for placing and securing the DL3800E Inverse Multiplexer in the operation site. Use this chapter to find out about command tools, system access, and basic configuration.

Chapter 4, “Terminal Interface,” shows how to monitor and manage the DL3800E Inverse Multiplexer using a VT100 terminal.

Chapter 5, “Front Panel Interface,” shows how to monitor and manage the DL3800E Inverse Multiplexer using the front panel.

Chapter 6, “Diagnostics” provides guidelines for troubleshooting the

DL3800E Inverse Multiplexer.

Appendix A, “Specifications,” provides the electrical, physical, and networking characteristics of the DL3800E Inverse Multiplexer.

Appendix B, “Pinouts,” details connector and pin assignments for the

DL3800E Inverse Multiplexer.

Appendix C, “Factory Default Settings,” lists factory defaults for the

DL3800E Inverse Multiplexer.

xvii

CONVENTIONS

This section describes the formats used to differentiate specific types of information throughout Quick Eagle Networks user guides.

Symbols

Symbols denote text that requires special attention. The information contained alongside a symbol corresponds to one of four levels of severity:

NOTE: Follow guidelines in this, or the previous, paragraph to use the

Quick Eagle Networks product more effectively.

CAUTION: Follow guidelines in this, or the previous, paragraph to avoid equipment damage or faulty application.

WARNING: Follow the instructions in this, or the previous, paragraph to avoid personal injury.

ELECTRO-STATIC DISCHARGE — CAUTION: Follow the instructions in this, or the previous, paragraph to avoid the discharge of static electricity, and subsequent damage to the equipment.

xviii

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

Typography

Quick Eagle Networks manuals delineate the names of files, commands, and actions by using the fonts and typefaces described in the following table:

Typeface or

Purpose

Example

Symbol

Courier

The names of commands, files, and

Font

directories, as well as on-screen

AaBbCc123

computer output.

Edit your.login file.

Use ls -a to list all files.

machine_name% You have mail.

Courier

Font, Bold

AaBbCc123

The input you provide, as contrasted

machine_name% su

with on-screen computer output.

 

 

 

Keystrokes that you must provide to

Press Ctrl-L to refresh the screen.

use the application.

 

Palatino Font,

Command-line placeholder that you

To delete a file, type rm filename

Italic

replace with a real name or value.

 

AaBbCc123

 

 

Book titles, new words or terms, or

Refer to Chapter 6.

 

 

words that need to be emphasized.

These are called class options.

 

 

 

 

You must be logged in as root to

 

 

access this directory.

 

 

 

Symbol that denotes a single-step

 

Zapf Dingbats

procedure or task. Procedures

 

Font

requiring more than one task are

 

 

numbered.

 

 

 

 

Palatino Font,

Hyperlinks in the table of

 

Bold Blue,

contents.When viewing the Portable

 

Underscore

Document Format (PDF) version of this

 

AaBbCc123

user guide, you can click on one of

 

 

these to jump directly to the selected

 

 

subject matter.

 

 

 

 

Palatino Font,

Hyperlinks throughout general text.

 

Blue

 

 

AaBbCc123

 

 

or

 

 

AaBbCc123

 

 

 

 

 

Helvetica Bold

Denotes actual markings on front or

Attach the cable to the TERMINAL

 

back panels.

port

 

 

 

Preface

xix

QUICK EAGLE NETWORKS TECHNICAL SUPPORT

If you should experience difficulty with the setup and/or operation of your Quick Eagle Networks equipment, the Quick Eagle Networks Technical Support staff can assist you at any time.

Telephone

(408) 745-4200

FAX

(408) 745-4240

E-mail

support@quickeagle.com

Internet

www.quickeagle.com

 

 

RETURNING A UNIT

Use the following procedure if you need to return a unit for service or repair,

1.Contact the Quick Eagle Networks Customer Service Department at (408) 745-4200, or via e-mail at era@quickeagle.com, or fax a request to (408) 745-4240 to obtain an ERA (Equipment Return Authorization) number.

2.Package the unit carefully and, before sealing the shipping carton, include any information you can provide about the problems you are currently experiencing with the unit.

3.Attach an address label to the shipping carton. Be sure to include the ERA number:

Customer Service Department

Quick Eagle Networks

217 Humboldt Court

Sunnyvale, CA 94089

ERA # ___________

xx

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

SEND US YOUR COMMENTS

Please let us know if this user guide manual meets your requirements.

Does the manual answer your questions?

Is the manual thorough?

Is the manual easy to use; that is, can you find the information you need? Is anything missing from the manual?

What would you like to see in the manual?

Quick Eagle Networks Technical Publications

FAX

(408) 745-6250

E-mail techpubs@quickeagle.com

All suggestions and comments are appreciated.

DOCUMENT CHANGE RECORD

Date

Issue Rev.

Description

Pages Affected

 

 

 

 

May 1996

A

Initial Release

All

 

 

 

 

January 1999

B

Update & Misc.

All

 

 

Changes

 

 

 

 

 

January 2000

C

Update & Misc.

All

 

 

Changes

 

 

 

 

 

September 2000

D

Update & Misc.

All

 

 

Changes

 

 

 

 

 

October 2000

E

Update & Misc.

All

 

 

Changes

 

 

 

 

 

June 2001

F

Update & Misc.

All

 

 

Changes

 

 

 

 

 

Preface

xxi

 

 

 

 

xxii

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

 

 

1

Quick Install Guide

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PURPOSE

This chapter is a quick reference for the setup and configuration of the DL3800E Inverse Multiplexer (see Figure 1-1). Please note that not all configuration items will be discussed, because this chapter only serves to get you up and running.

Figure 1-1 DL3800E Inverse Multiplexer (front panel)

CONFIGURATION

Equipment Needed

Terminal or PC, with DE-9 port, that will emulate an ANSI VT100

DL3800E E1 Inverse Multiplexer product (various ports)

The DL3000E comes either with BNC or 120 ohm

DE-9 cable (plug-socket) 154-00050-01 (Model DL1081) or equivalent.

DA-15 (plug) to RJ-48 (plug) for E1 connections 155-00011-01 (Model DL1033) or equivalent.

HSSI or 155-10082-01 (HSSI) (Model DL1404-10) or equivalent

M-34 to DB-25 cables (v. 35) or 155-00903-01 (v. 35) (Model DL1300-10, or equivalent

DC-37 to DB-25 (RS-449) 155-00902-01 (RS449) (Model DL1302-10) or equivalent

X.21+DB-25 (X.21) 155-00907 (DL1314-10) and 155-00907-12 (DL1314-50) (Model ID1314-10 and -50) or equivalent

1-1

1

Setup

Terminal Log On

Connect your terminal to the COMM port on the back of the DL3800E unit. Before you can log into the unit, you must make sure that terminal settings match the DL3800E. Defaults for the DL3800E unit COMM port: 9600 baud, no parity, 8 bit word length, 2 stop bits. To log into the unit, first press Ctrl-x five times (that is, hold down the control key on the keyboard and press the x key five times. This gives you the unit number. Now type Ctrl-x # Unit Number and press Return or Enter. When prompted for user name and password press Return twice, and the Main Menu on the DL3800E unit should appear. The default unit number is 0.

Terminal Configuration

Change only the configuration items listed below. Leave the other options at the factory default settings. To make a change, note that you must press the UP and DOWN ARROW keys to highlight the item, press the space bar until the desired option displays, then highlight CONFIRM and press Enter before exiting the menu.

Unit Configuration

Select Configuration from the Main Menu. Select Unit Configuration. Set the time and date. Set unit number other than zero. Select Confirm, then select EXIT to go back to the CONFIGURATION MENU.

DTE Configuration

WARNING: V.35/RS449/X.21 will only work at a higher data rate with a DTE that can give terminal clocking, when in SCTE mode.

Configure the DTE interface for either v.35/RS449/x.21 or HSSI. For V.35/RS449/X.21 configuration, set the clock to SCTE and Normal TD/RD clock. Set the DTE loss condition for NONE. Select Confirm, then select EXIT to go back to the CONFIGURATION MENU.

1-2

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

1

Network Configuration

Set up a port for each E1 line you plan to use. Set Alarm to Report. Set

ACTICVE/RESTORE MODE to Use w/auto restore. Normally is CRC4 enable. Primary clock Xmt=Network (assuming carrier or remote unit providing timing). Primary clock RCV should be set to AUTO. Configure SER to Immediate Confirm and select EXIT. Select Exit again to the Main Menu.

Save Configuration

Select SAVE CONFIGURATION from the Main Menu.

You’re done! If you have any questions, please feel free to call Quick Eagle Network’s Technical Support at (408) 745-4200.

Quick Install Guide

1-3

1

1-4

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

 

 

2

Introduction

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SYSTEM OVERVIEW

The DL3800E Inverse Multiplexer bridges the gap between E1 and E3 data services by providing E1 multiplexing of multimegabit (up to Nx1.976 Mbps) DTE data onto two to eight E1 circuits. The DL3800E Inverse Multiplexer is an economical solution to bandwidth intensive applications as it provides multimegabit data transport without the need for E3 circuits. The DL3800E unit is an ideal solution for applications such as LAN-to- LAN internetworking, bulk data transfer, video teleconferencing, and disaster recovery.

Figure 2-1 DL3800E Inverse Multiplexer

The inverse multiplexing technique employed by the DL3800E unit is completely transparent to the DTE application, as the multiple E1 circuits act as a single high-speed data link. The DL3800E unit can accept up to a 31-millisecond differential delay between individual E1 circuits, thus providing the capability to accommodate E1 circuits from divergent paths. This is often the case with circuits being utilized from different carriers.

An excessive delay alarm will cause an E1 line to be taken out of service. If the relative delay between all the E1 lines exceeds 31 milliseconds, then the E1 lines are removed from service one port at a time until the remaining group reside within the 31-millisecond window. The first port taken out of service will be the one that is farthest away from the average value, regardless of its relative delay value. In order to restore an E1 line, you must use the manual restore command. In order to bring an E1 line back into service, execute the manual restore command on the remote unit first. Then execute the manual restore command on the local unit. Auto restore will not work for lines removed due to excessive delay.

The DL3800E unit supports either High Speed Serial Interface (HSSI) or V.35/RS449/X.21 interfaces to the DTE.

2-1

2

The DL3800E unit features an automatic rate fallback in the event of a failing E1 circuit. If the performance of an E1 circuit is detected to be falling below accepted levels, the DL3800E unit automatically removes the E1 from service, and throttles back the DTE to a data rate corresponding to the remaining E1s. When the alarm condition on the affected E1 has been cleared, the DL3800E unit can automatically restore the E1 and data rate.

You can configure, control, and monitor the DL3800E unit through the front panel, an ASCII terminal (locally or remotely via a modem or remotely in-band) or a Simple Network Management Protocol (SNMP) management station. The remote DL3800E unit can be managed in-band using overhead in all active connections as the communications path. The DL3800E unit features an integrated SNMP agent which supports the E1 Management Information Base (MIB) in addition to a unit specific enterprise MIB.

A downloadable software feature of the DL3800E unit allows new features and functionality to be added to the unit on line (without interrupting the data) via the unit's built-in communications port, or via a selected E1 connection.

PRODUCT FEATURES

The DL3800E Inverse Multiplexer allows you to connect high-speed data terminal equipment (DTE) to multiple E1 links, providing aggregate data rates up to 15.808 Mbps. Utilizing up to eight E1 links simultaneously, the DL3800E unit is ideally suited to high bandwidth applications such as LAN-to-LAN internetworking, video teleconferencing, bulk data transfer and high-speed data recovery.

System Features

High bandwidth data transmission over 1 through 8 E1 ports.

HSSI or V.35/RS449/X.21 DTE interface

Automatic Bandwidth response/recovery

Local or remote management via front panel, terminal, or embedded SNMP agent

Extensive diagnostics:

Front panel indicators

Built-in test loops

Automatic self test

Integral event log with nonvolatile memory

2-2

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

2

System Benefits

The numerous features of the DL3800E unit provide you with many benefits:

Reliable, full performance access to E1 networks for the widest variety of DTE products

Enterprise wide visibility via SNMP

Local and remote access via front panel, terminal, or telnet

Complete maintenance and diagnostic support via exhaustive alarm, statistic, and test capabilities

Downloadable code provides for on-line upgrade to the DL3800E unit software for both major and minor feature enhancements

Application

The DL3800E unit accepts data from a high-speed bridge, router, front-end processor or other DTE device and multiplexes the bit stream onto one through eight E1 circuits for transmission at N x 1.976 Mbps. Because the inverse multiplexing process is completely transparent to the attached equipment, the combined E1 circuits appear as a single high-speed data link to the DTE. The DL3800E unit accepts up to a 31-millisecond differential delay between individual E1 circuits, ensuring reliable operation in multiple carrier networks.

A unique feature of the DL3800E unit is the automatic bandwidth response to an E1 signal loss or network errors. If an E1 link falls below acceptable performance levels, the DL3800E unit removes the link from service and reduces the DTE data rate to correspond with the remaining E1 links in service. When the alarm condition has been cleared, the DL3800E unit restores the E1 link and increases the DTE data rate to its original level.

A typical application is shown in Figure 2-2.

Figure 2-2 Typical Application for DL3800E

Introduction

2-3

2

FUNCTIONAL DESCRIPTION

The base DL3800E unit configuration consists of a motherboard with two (E1) network interface connectors and the DTE connectors (HSSI and V.35/RS449/X.21). Six additional E1 network ports can be added with the addition of from one to three daughterboards, each daughterboard supporting two additional E1 ports.

The general operation of the DL3800E unit is explained in the following paragraphs which describe the signal flow and overhead functions.

Signal Flow

The DL3800E unit is configured by you for the number of E1 signals to be used for transmission. The DL3800E unit will provide a smooth clock to the DTE at the data rate required for the number of E1 outputs you have configured. For E1, this rate will be Nx1.976 Mbps, where N is the number (1 to 8) of E1s to be used.

The transmit smooth clock PLL can use any of the incoming E1 clocks, an external clock, or internal clock as reference. The receive smooth clock will use one of the receive clocks at its source. The smooth clock VCO will be divided down to 8 kHz to be phase compared to the 8 kHz reference. The receive buffers are large enough to accommodate variations between E1 receive clocks.

The DL3800E unit supports one DTE interface. For data rates up to 6 Mbps, the DTE interface can be HSSI or V.35/RS449/X.21 (software selectable). For data rates over 6 Mbps, only the HSSI interface will be supported.

Data is sent from the DTE interface to an Inverse Multiplexer (IMUX) transmit framer. A 16-bit proprietary framing pattern is defined to satisfy the requirements of inverse multiplexing communications. This frame is constructed by using one payload bit in each frame for 16 consecutive frames. For E1, the inverse multiplexing frame is the first bit after the framing bit.

From the inverse mux framer, the data is sent to all E1 framers, where the E1 framing is added, and then to the appropriate E1 network interface and out over the E1 network.

All incoming configured E1 lines, with their respective clocks, are received into a standard E1 framer. The output of the E1 framer is fed into the IMUX framer.

Data coming into the DL3800E Inverse Multiplexer is stored in N independent buffers, where N is the number of configured input channels. From these buffers, the data will be read and IMUX framing removed.

2-4

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

2

When the incoming signal is framed on the inverse mux frame, the framer will start loading its Dual Port RAM. The address to the Dual Port RAM is derived from the 16-bit inverse mux frame. The software will ask all framers to latch their Dual Port RAM addresses at the same time, and by looking at the addresses, the software can determine which network has experienced the greatest delay.

From the receive inverse IMUX framer, the incoming data will go to the receive multiplexer. The net that is last in time will be enabled to tell the receive multiplexer when to start unloading the Dual Port RAM to the DTE interface. To allow for jitter and wander specifications, the read address counter will be positioned approximately three frames behind the write address for the network last in time.

E1 Port Crossover Detection

When the IMUX E1 circuits synchronize, they use the IMUX framing to communicate to know the ports (1-8). A crossover is a situation where a network line is connected to a port on the remote 3800E different from the port it originates from on the local 3800E.(e.g. port 1 on the local unit is connected to port 2 on the remote unit). This situation will cause DTE traffic to be incorrectly multiplexed and, as a result, severely errored.

When a crossover is detected, the DL 3800E removes the crossed port from the DTE data bundle and reduces the DTE data rate. The LED will change to flashing green and the port status in the Alarms & Status menu read “Line crossed”, and also (Crossed to port:x), where x is the port number connected at the remote end. It also generates an SNMP alarm: enCrossoverAlarm.

When the crossover is cleared, the port is restored to DTE bundle and the LED restores to green. Port crossover status clears and the SNMP alarm enCrossoverAlarm is idled.

An IMUX E1 circuit is reestablished as soon as the mismatched circuits are disconnected and reconnected properly.

Figure 2-3 is a functional schematic of the DL3800E unit showing a unit supporting four E1 lines.

Introduction

2-5

2

 

 

 

 

 

 

T

 

 

 

 

 

 

 

E1 Framer

 

 

 

E1 TX Int.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TX_

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1 Framer

 

 

 

E1 TX Int.

 

 

 

 

 

 

 

 

 

F

 

 

 

TX LCA

 

 

 

 

 

 

 

 

 

 

 

DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I

 

 

 

IMUX Framer

 

 

 

 

 

 

 

 

 

 

 

 

 

INTF

 

 

 

 

 

 

 

 

E1 Framer

 

 

 

E1 TX Int.

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1 Framer

 

 

 

E1 TX Int.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

IMUX Buffer

 

 

IMUX Framer

 

 

E1 Framer & RX Int.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IMUX Buffer

 

 

IMUX Framer

 

 

E1 Framer & RX Int.

 

 

 

 

RX_

 

F

 

 

RX

 

 

 

 

 

 

 

 

DTE

 

I

 

 

LCA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INTF

 

F

 

 

 

 

 

IMUX Buffer

 

 

IMUX Framer

 

 

E1 Framer & RX Int.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IMUX Buffer

 

 

IMUX Framer

 

 

E1 Framer & RX Int.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2-3 DL3800E Unit Functional Schematic

Overhead Functions

The overhead functions consist of a controller, front panel, two RS232 communication interfaces (terminal and network management), and a power supply.

The controller function is performed by a microprocessor on the main board. The controller collects E1 statistics. It also processes E1 alarms and performance monitoring information, as well as supporting unit configuration, test and maintenance activities. Finally the Controller block supports the front panel display, terminal port, and SNMP port interfaces.

The front panel consists of a 16-character vacuum fluorescent display, 4-key keypad, and LEDs. This panel can be used to provision the unit, run diagnostic tests, or access performance statistics.

The serial ports are RS-232C compatible ports with one port supporting a menu driven ASCII terminal interface, and the other port providing access to the built-in SNMP agent functionality.

The DL3800E unit can be ordered with DC or AC power supplies and the built-in power supply has a range of 110 to 240 VAC and -40 to -75 VDC.

2-6

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

 

 

3

Installation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INSTALLATION

NOTE: Before beginning the installation process, inspect the DL3800E unit for damage which may have occurred during shipment. If damage has occurred, notify Quick Eagle Networks and your package carrier immediately.

1.Unpack and inspect the DL3800E unit for damage that might have occurred during shipment. If necessary, wipe off the exterior with a soft cloth. Save all packing slips and papers that come with the unit. Save the shipping cartons and packing materials until installation is complete and proper operation is verified.

2.Verify that all items ordered are included in the shipment. The shipment should consist of the following:

DL3800E Digital Inverse Multiplexer

DL3800E User’s Guide (this manual).

Appropriate data and network interface cables and connectors (if ordered).

Power cord

3.Mount the DL3800E unit.

See “Mounting” on page 3-2.

4.Connect Power Cables and Connections.

See “Power Cables And Connections” on page 3-3

5.Connect network cables to the DL3800E unit.

See “E1 Network Connection” on page 3-5

6.Connect the DTE cable to the DL3800E unit.

See “DTE Cable And Connection” on page 3-5

7.ASCII Terminal and SNMP Connection

See “ASCII Terminal and SNMP Connection” on page 3-6

3-1

3

8.Configure Unit

See “Unit Configuration” on page 4-17 (ASCII terminal)

a.Configure COMM PORT

See “Unit Configuration” on page 4-17 (ASCII terminal)

b.Configure NMS (Network Management) Port

See “SNMP Configuration” on page 4-39 (ASCII terminal)

9.Configure Network

See “Network Configuration” on page 4-25 (ASCII terminal)

10.Configure DTE

See “DTE Configuration” on page 4-20 (ASCII terminal)

MOUNTING

Rack Mounting

The DL3800E unit (Figure 3-1) is shipped with mounting ears for a 19or 23-inch rack that are mounted for use with a 19-inch rack.

Desk Operation And Stacking

Four stick-on rubber feet are supplied with each DL3800E unit. Remove the covering and stick them onto the DL3800E unit bottom. You can now stack units as required on a flat surface in a well-ventilated, secure area.l

Figure 3-1 DL3800E Rear Panel

NOTE: On DC versions of the DL3800E, the AC receptacle will be covered with a DC face plate.

3-2

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

3

POWER CABLES AND CONNECTIONS

The DL3800E unit can be ordered with an AC or DC power supply.

AC Power Connection

An AC power cord is supplied with the DL3800E -AC-XXX to provide 120 to 240 VAC power. The power cord receptacle is located on the rear panel of the DL3800E-AC-XXX. For AC power, connect the AC power cord to the DL3800E-AC-XXX, and plug into the nearest AC outlet.

DC Power Connection

The Quick Eagle Networks DL3800E Inverse Multiplexer can also be powered by a -48 VDC power source. The DC power connection on the DL3800E is located on the back panel. There are eight screw terminals located on the rear panel. The two screw terminals on the far right (looking at the rear panel) are for DC power.

Connect the -48 V wire to the screw terminal labeled . Attach the 48 V Return(+) wire to the screw terminal to the immediate right, labeled +. Connect earth ground to the ground stud.

When using DC power, you will need the following:

A tray cable which must be UL recognized 14 AWG, 3 conductors, copper strand.

Electrical power and control cable type TC, 600 V 90°C. (Alpha Wire Company No. 45443 is an example.)

To mechanically install the DL 3800E when using DC power, perform the following steps:

1.Place the DL3800E unit on a flat surface or in a rack.

2.Before you connect the DL3800E unit to the centralized DC power source, strip 2.0 inches of jacket material off the tray cable and 0.5 inch of insulation off each wire.

3.Connect the -48 VDC wire to the - terminal (on the rear panel’s terminal block, using a small flat screw driver (¼-inch blade) to fasten the wire.

Installation

3-3

3

4. Connect the ground (+) wire to the + terminal in the same way.

NOTE: The unit is designed to operate with negative voltage; therefore, you must connect the positive terminal to ground.

5.Connect the frame ground terminal to the local earth ground, if required.

6.To minimize disturbance to the wires through casual contact, secure a tray cable near the rack frame using multiple cable ties. Use at least four cable ties, a minimum of four inches apart. The first tie should be within six inches of the terminal block.

7.Connect the DL3800E unit to a DC power source.

WARNING: Damage to the DL3800E unit may result if power is connected improperly. Do not operate the DL3800E unit without a ground connection to the ground stud.

The DL3800E unit automatically runs a self-test at power up, during which the front panel displays a self-test message. Payload service resumes upon completion of the self-test and the front panel displays the following default message:

EFS 00.0 PERCENT

WARNING: Do not operate the DL3800E unit without an earth ground connection to the ground stud.

The DL3800E unit is designed to operate with a negative power supply. This means the positive terminal is connected to the ground.

WARNING: Damage to the DL3800E unit may result if power is connected improperly.

3-4

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

3

E1 NETWORK CONNECTION

The eight port connector can be either a DB-9, DB-15, or BNC. The connectors are located on the DL3800E unit back panel for connecting to the E1 networks.

Connect the DL3800E unit to each E1 Network using the appropriate cable and connectors, available from Quick Eagle Networks.

DTE CABLE AND CONNECTION

DTE interface connectors are provided on the back of the DL3800E, a 50-pin SCSI socket receptacle for HSSI compatible DTE, and a DB-25 (E1A-530) socket connector for V.35/X.21 or RS-449 compatible DTEs.

If using a HSSI interface, the cable connecting the DL3800E unit to the DTE consists of 25 twisted pairs with an overall foil/braid shield. The DL3800E unit end of the cable should have a plug connector. One 50-pin SCSI socket receptacle is provided on the rear of the DL3800E unit to connect it to HSSI-based networks/systems. Cables and connectors are available from Quick Eagle Networks. Using the appropriate cable and connectors, connect the DL3800E-HSSI connector to the HSSI DTE.

If using a V.35/X.21 interface, use a shielded cable supplied by Quick Eagle Networks to connect the DL3800E unit to the DTE. One DB-25 (E1A-530) socket connector is provided on the back of the DL3800E unit to connect the DL3800E to the V.35/RS-449/X.21 compatible DTE. Using the appropriate cable and connectors, connect the V.35/RS-449/X.21 DTE device to the DL3800E unit.

ASCII TERMINAL AND SNMP CONNECTION

The DL3800E unit is accessed by an ASCII terminal or SNMP Management System workstation through direct, daisy-chained, or dial-up modem connection.

On the rear panel of the DL3800E unit, two socket DE-9 receptacles labeled NMS and COMM PORT are provided for connection to the SNMP workstation or ASCII terminal, respectively. An RS-232 straight cable, with DE-9 plug connectors, is used to link the DL3800E unit with the terminal, modem, or workstation.

Installation

3-5

3

Direct Connection

For direct connection, using the appropriate DE-9 cable, connect the ASCII terminal or SNMP workstation to the DL3800E unit through the Terminal or SNMP connector on the back of the rear panel. The baud rate, parity bit, and stop bit settings must match those of the terminal: baud rate, 9600; eight bits, no parity and two stop bits.

Modem Connection

When using a modem, the baud rate, parity bit, and stop bit settings of the modem must match the terminal or workstation port default settings: baud rate 9600; eight bits; no parity, and two stop bits. If these parameters are not the same, reconfigure the unit default settings using the front panel controls.

When the parameters of the modem and the terminal or workstation port coincide, using the RS-232 straight cable, connect the modem to the appropriate RS-232 comm port (COMM PORT or NMS) on the rear panel of the DL3800E. Then, connect the modem to the phone line and the ASCII terminal or SNMP workstation. DE-9 to DB-25 adapters and null-modem adapters are available from Quick Eagle Networks. Specify a plug or socket terminal connection when ordering.

For direct connection, the terminal, workstation, or modem may be placed up to 15 meters away from the comm port when operating at 9600 baud. Distances may be increased if the baud rate is reduced.

Telnet Connection

For a telnet connection, connect a device that provides a SLIP connection to the NMS port of the DL3800E unit. Examples include a terminal server, router auxiliary port, or the Quick Eagle Networks Management Access Processor (MAP). Be sure to provide a valid IP address to the DL3800E. There can be up to two active telnet sessions at any given time. There is no way for a user to delete the telnet session of another user.

3-6

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

3

Daisy Chaining

Multiple DL3800E units can be daisy-chained together through the Terminal Port to provide centralized network monitoring and management capabilities.

A ribbon-type cable with DB-9 connectors is available from Quick Eagle Networks for daisy-chaining your DL3800E units. You can order specific cables to daisy-chain four units (Part No. 154-00051-01), eight units

(Part No. 154-00052-01), or twelve units (Part No. 154-00053-01). To place an order, contact the Quick Eagle Networks Sales Department at (408) 7456200.

If using a cable other than the above, see “Terminal Connection” on page B-1 for Terminal Port pin assignments. With this cable, CTS (pin 8) must be connected between DL3800E units, but must not be connected to the terminal.

The one socket connector on the ribbon is to be connected to the terminal or modem (if a remote site). The remaining plug DE-9 connectors are connected to the DL3800E1 unit port. Each unit must be assigned a unique node number.

When units are daisy-chained together, the local terminal must be operating in Multidrop Mode. Each unit should be given a unique Node Number.

NOTE: For detailed instructions on installing SNMP systems, refer to the separate installation guides for these products.

Installation

3-7

3

3-8

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

 

 

4

Terminal Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOG IN/LOG OFF

Each DL3800E unit is equipped with an integrated RS-232 ASCII user interface that can be accessed through the COMM PORT (DE-9 connector) located on the rear panel of the DL3800E. Through this interface, you can perform various functions described in this section.

When operating in multidrop mode (that is, when multiple DL3800E units may be daisy-chained together for centralized network management), you must log in to establish communication with a single unit on the network. Only one unit may be accessed at a time. All units continuously monitor the line, but only the unit which is logged on will respond to terminal commands. When no unit is logged on, the characters typed on the terminal will not show up on the display screen.

To log on and log off a particular unit, follow these procedures:

1.Type five Ctrl-X commands in a row to return a “roll call” of all Node Numbers on the chain.

This feature is useful when the Node Numbers of any units on the network are unknown.

2.Type Ctrl-X followed by #, the node number, and press Enter (or

Return).

These characters will not be displayed on the terminal screen, but the units will receive them.

If passwords are enabled for the unit, you will be prompted for the username and password. Initially, no password or username is needed, so simply press Enter when prompted for a username or password.

3.The Main Menu will appear. If not, check that the Node Number matches what is typed on the terminal.

If it still does not appear, check that the DL3800E unit port settings match the terminal settings (baud rate, parity, data bits, and stop bits). If so, a null modem adapter may be required to interchange pins 2 and 3 (transmit and receive) from the terminal.

4-1

4

4. To log on to another DL3800E unit on the same daisy chain, simply type Ctrl-X, followed by a # and the Node Number and press Enter.

The previous unit is logged out and the new unit is logged on.

5.To log off all units without logging onto any new units, press Ctrl-X at the Main Menu.

TERMINAL OPERATION OVERVIEW

General Menu Flow

The menu interface for the DL3800E unit consists of the Main Menu, and a series of submenus.

From the Main Menu, select the submenu to be selected or function to be performed by moving the highlight bar through the menu screen with the Cursor Arrow keys until the desired function is highlighted.

To prevent any accidental data and/or status change, every proposed change requires a confirmation response. To confirm a proposed change, move the highlight bar to Confirm on the menu and press Enter. Type any other key and the change will not be made. This will cause the terminal to continue to prompt you to confirm the change(s). To abort the change, move the highlight bar to Exit, and press the Enter key rather than confirming the change.

NOTE: Pressing the Escape key brings the display back to Select

Local/Remote when in the Main Menu, and back to Exit when in the

EXECUTION MENU.

Screen Description

The top four lines of each display screen contain information regarding the last two status or alarm conditions reported by the DL3800E unit. This information includes: the severity of condition reported; the date and time condition was reported; the Unit and NET (E1 port) reporting the alarm; a code for the type of condition, and a description of the condition.

4-2

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

The next two lines in the menu, which are always highlighted, represent the Status Bar. The first line of the Status Bar displays the product type, the software release number, node number, node name, date & time, and current alarm status of the unit. The second line displays the selected device address and name.

Major

01/01/90 04:58:17

Unit: 0

NET

: 2

(114)

Network 15 Minute UAS

Major

Threshold Exceeded

Major

01/01/90 04:58:17

Unit:

0

NET

: 1

(114)

Network 15 Minute UAS Major Threshold Exceeded

Digital Link DL3800E SR 3.00.00 NODE 7: 01/01/90 05:55:07 MN SELECTED DEVICE ADDRESS: 7.00.000 NAME:

INVERSE MULTIPLEXER MAIN MENU

Select Local/Remote

Alarms & Status

Statistics

Event History

Configuration

System Utilities

Tests

Manual Network Restoration

Logout

Figure 4-1 INVERSE MULTIPLEXER MAIN MENU

The product type is a DL3800E Digital Inverse Multiplexer.

The software revision is 3.XX, where xx equals the latest software revision. This number is useful to determine the features that are supported with this release.

The Node number, in this case 7, is user defined. This can be used to further identify the node within your network. It is recommended that all nodes be given a unique node number. This is crucial in inter-node communications.

The Node name (HOME), is user defined. You can use this field to uniquely describe the node within the network.

The date and time are give in mm/dd/yy, and hh:mm:ss format.

The alarm indicator, in this case MN for minor, is given on each screen to alert you of a local Node alarm.

The Selected Device address, in this example 7.00.000 is shown at the beginning of the second status line. A device is a generic term to indicate a NODE (unit).

Terminal Interface

4-3

4

INVERSE MULTIPLEXER MAIN MENU COMMANDS

When a DL3800E unit is first powered up, the Main Menu (Figure 4-1 on page 4-3) appears on the terminal screen. This describes those functions that can be performed, parameters viewed, changed and/or deleted from this menu. The INVERSE MULTIPLEXER MAIN MENU items are shown in Table 4-1 (these items are described in more detail in the following sections)..

 

Table 4-1 Main Menu

 

 

Menu

Description

 

 

Select Local/Remote

Allows you to move between the Main Menu of the Local and Remote

 

units.

 

 

Alarms and Status

Provides current alarm and status report of the common equipment, DTE,

 

and E1 lines.

 

 

Statistics

Allows you to access the STATISTICS MENUS of the various E1 lines.

 

 

Event History

Allows user to view and clear alarms and event history of the DL3800E.

 

 

Configuration

Allows you access submenus to configure certain parameters of the

 

DL3800E, network, and DTE.

 

 

System Utilities

Allows you to perform various system utility functions such as download

 

software, configure SNMP, configure login, and delete or save

 

configuration.

 

 

Tests

Allows you to initiate diagnostic loopbacks.

 

 

Manual Network Restoration

Allows you to manually restore a E1 circuit instead of it being restored

 

automatically upon the clearing of a problem.

 

 

Logout

Allows you to log out of the DL3800E unit without having to wait for

 

automatic logout.

 

 

SELECT LOCAL/REMOTE

When in the INVERSE MULTIPLEXER MAIN MENU, this option allows you to view and access the other items on either the local or remote DL3800E. The Device Address and Name in the header portion of the display screen will identify the unit that the terminal is presently communicating with.

To move to the Main Menu of the other DL3800E, highlight SELECT LOCAL/REMOTE and press Enter. The Device Address and Name in the header should change to the new unit as shown in Figure 4-1 on page 4-3.

4-4

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

ALARMS AND STATUS

The ALARMS AND STATUS MENU is a view-only screen that allows you to review the current ALARMS AND STATUS items being reported by the DL3800E. To access this screen, move the highlight bar in the INVERSE MULTIPLEXER MAIN MENU to ALARMS AND STATUS and press

Enter.

The ALARMS AND STATUS display (Figure 4-2) will appear on the screen describing the status of the common equipment and each of the E1 ports (lines), plus the status of the DTE leads and the current rate of the DTE port.

Major

01/01/90 04:58:17

Unit:

0

NET

:

2

(114)

Network 15 Minute UAS

Major Threshold Exceeded

Major

01/01/90 04:58:17

Unit:

0

NET

:

1

(114)

Network 15 Minute UAS Major

Threshold Exceeded

Digital Link DL3800E

SR 2.00.00 NODE 7:

01/01/90 05:55:07 MJ

SELECTED DEVICE

ADDRESS:

7.00.000 NAME:

CURRENT ALARMS AND STATUS ITEMS

 

Exit

Repeat

Common

equipment status: No Ext

Clk, Primary Clk, No Net Sync

Network ports:

 

 

 

 

 

 

PORT

1:

LOS,

RED,

Active, OOF MN, UAS 15 MIN MJ Relative delay of 0.000 ms

PORT

2:

LOS,

RED,

Active, OOF MN, UAS 15 MIN MJ Relative delay of 0.000 ms

PORT

3:

BPV MN, OOF MN, BPVS

15

MIN MN

 

PORT

4:

BPV MN, OOF MN, BPVS

15

MIN MN

 

PORT

5:

LOS,

RED,

UAS 15 MIN

MJ

 

 

PORT

6:

LOS,

RED,

UAS 15 MIN

MJ

 

 

PORT

7:

LOS,

RED,

UAS 15 MIN

MJ

 

 

PORT

8:

LOS,

RED,

UAS 15 MIN

MJ

 

 

RS449/X.21

port:

DSR ON

 

 

 

 

Current RS449/X.21 port rate = 3.952 Mbits/sec

Figure 4-2 ALARMS AND STATUS MENU

Following are the Alarm and Status items (severity) that may appear. The Common Equipment alarms and status will appear first, followed by the Network and the DTE alarms and status.

Table 4-2

3800E Alarm Descriptions

 

 

ALARM

DESCRIPTION

 

 

NETWORK

 

 

 

LOS

Loss of Signal -- Net Port does not detect

 

any E1 pulses

 

 

LOF

Loss of Frame - Net Port does not detect a

 

valid E1 framing format

 

 

Terminal Interface

4-5

4

Table 4-2 3800E Alarm Descriptions

 

ALARM

DESCRIPTION

 

 

 

 

 

 

AIS DET

Alarm Indication Signal Detected — Net

 

 

 

Port detects an unframed continuous

 

 

 

stream of binary ones.

 

 

 

 

 

 

AIS

Alarm Indication Signal — Not used.

 

 

 

 

 

 

YEL Det

Yellow Alarm (RAI — Remote Alarm

 

 

 

Indication) Detected. #Net Port detects the

 

 

 

presence of an RAI.

 

 

 

 

 

 

YEL

Yellow Alarm (RAI) - Net Port transmits a

 

 

 

Yellow Alarm (RAI) when receiving an AIS,

 

 

 

LOS, or LOF.

 

 

 

 

 

 

Failed Signal

Not used.

 

 

 

 

 

 

Xmt Failed

Not used.

 

 

 

 

 

 

User Line Lpbk

User Line Loopback – Net Port in a Line

 

 

 

Loopback. Enabled by you under the Tests

 

 

 

menu.

 

 

 

 

 

 

User Payload Lpbk

User Payload Loopback – Net Port in a

 

 

 

Payload Loopback. Enabled by you under

 

 

 

the Tests menu.

 

 

 

 

 

 

HW Line Lpbk

Not used.

 

 

 

 

 

 

HW Payload Lpbk

Not used.

 

 

 

 

 

 

Remote Lpbk

A loopback is occurring on the net lines or

 

 

 

on the remote unit.

 

 

 

 

 

 

*Active

Net Port is Active. This indicates that the

 

 

 

Net Port is part of the bundle passing data

 

 

 

to and from the DTE port.

 

 

 

 

 

 

Not Active

Net Port is Inactive. This indicates that the

 

 

 

Net Port has been removed from the

 

 

 

bundle and is no longer passing data to

 

 

 

and from the Data Port.

 

 

 

 

 

 

Excessive Delay

The Net Port has exceeded the 31ms

 

 

 

relative delay.

 

 

 

 

 

 

Set Code Detected

The Net Port has detected a Loop code

 

 

 

sent from the Network.

 

 

 

 

 

 

Reset Code Detected

Net Port has detected a Loop down code

 

 

 

sent from the Network.

 

 

 

 

 

 

CRC Threshold

Net Port has exceeded the CRC Threshold.

 

 

 

 

 

 

 

 

 

4-6

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

Table 4-2 3800E Alarm Descriptions

ALARM

DESCRIPTION

 

 

SES Threshold

Net Port has exceeded the Severely

 

Errored Second Threshold.

 

 

UAS Threshold

Net Port has exceeded the Unavailable

 

Second Threshold.

 

 

BPV MN/MJ

Net Port has declared a Bipolar Violation

 

Major or Minor Alarm.

 

 

OOF MN/MJ

Net Port has declared an Out Of Frame

 

Major or Minor Alarm.

 

 

BPVs 15 Min. MN/MJ

Net Port has declared a Bipolar Violation

 

15 minute Major or Minor Alarm

 

 

CRCs 15 Min. MN/MJ

Net Port has declared a CRC 15 minute

 

Major or Minor Alarm

 

 

ES 15 Min. MN/MJ

Net Port has declared a Errored Second

 

15 minute Major or Minor Alarm

 

 

SES 15 Min. MN/MJ

Net Port has declared a Severely Errored

 

Second 15 minute Major or Minor Alarm.

 

 

UAS 15 Min. MN/MJ

Net Port has declared a Unavailable

 

Second 15 minute Major or Minor Alarm.

 

 

BPVs 24 Hr MN/MJ

Net Port has declared a Bipolar Violation

 

24 Hour Major or Minor Alarm.

 

 

CRCs 24 Hr MN/MJ

Net Port has declared a CRC 24 Hour

 

Major or Minor Alarm.

 

 

ES 24 Hr MN/MJ

Net Port has declared a Errored Second

 

24 Hour Major or Minor Alarm.

 

 

SES 24 Hr MN/MJ

Net Port has declared a Severely Errored

 

Second 24 Hour Major or Minor Alarm.

 

 

UAS 24 Hr MN/MJ

Net Port has declared a Unavailable

 

Second 24 Hour Major or Minor Alarm.

 

 

COMMON EQUIPMENT

 

 

 

External Alarm

An External Alarm has been detected. This

 

alarm is based on the External Alarm

 

contacts on the back panel.

 

 

Proc Restart

Unit has rebooted.

 

 

RAM Test Fail

This occurs if the unit’s RAM does not pass

 

the memory test which occurs at startup.

 

 

Terminal Interface

4-7

4

Table 4-2 3800E Alarm Descriptions

ALARM

DESCRIPTION

 

 

ROM Checksum Fail

This occurs if the checksum for the code

 

image stored in ROM does not match that

 

expected.

 

 

No Ext Clk

No clock detected on the External Clock

 

DB-- 9 connector on the back panel.

 

 

Primary Clock

The set primary receive clock source is

 

now providing the network receive clock.

 

 

Secondary Clk

The set secondary receive clock source is

 

now providing the network receive clock.

 

(Occurs if the primary source has been

 

lost).

 

 

Internal Clk

Loss of Internal Clock.

 

 

Sync

Net 1 -- Net Port 1 is the network receive

 

clock source.

 

 

Sync

Net 2 -- Net Port 2 is the network receive

 

clock source.

 

 

Sync

Net 3 -- Net Port 3 is the network receive

 

clock source.

 

 

Sync

Net 4 -- Net Port 4 is the network receive

 

clock source.

 

 

Sync

Net 5 -- Net Port 5 is the network receive

 

clock source.

 

 

Sync

Net 6 --- Net Port 6 is the network receive

 

clock source.

 

 

Sync

Net 7 -- Net Port 7 is the network receive

 

clock source.

 

 

Sync

Net 8 -- Net Port 8 is the network receive

 

clock source.

 

 

No Net Sync

Shows all port are down. More

 

specifically, if a network clock cannot be

 

sourced from any port.

 

 

DTE

 

 

 

HSSI Channel Lpbk

A HSSI hardware loopback has been set.

 

 

User Lpbk

The DTE/Network loopback has been set.

 

 

V.35 LT Lpbk

A V.35 hardware loopback has been set.

 

 

4-8

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

Table 4-2

3800E Alarm Descriptions

 

 

ALARM

DESCRIPTION

 

 

DTE Loss

The signal indicating DTE presence has

 

been lost.

 

 

DTR On

The V.35 DTR signals is present.

 

 

RTS On

The V.35 RTS signal is present.

 

 

RLB On

The V.35 DTE Remote Loopback signal has

 

been set.

 

 

LT On

The V.35 LT signal is present.

 

 

TA On

The HSSI TA signal is present.

 

 

LA On

The HSSI LA signal is present.

 

 

LB On

The HSSI LB signal is present.

 

 

DSR On

The V.35 DSR is asserted.

 

 

CTS On

The V.35 CTS signal is asserted.

 

 

RLSD On

The V.35 RLSD signal is asserted.

 

 

TM On

The V.35 TM signal is asserted.

 

 

CA On

The HSSI CA signal is asserted.

 

 

LC On

Not used

 

 

Line crossed

E1 network lines are crossed.

 

 

Terminal Interface

4-9

4

NOTE: Status display will read ACTIVE, if the DL3800E unit is in

Inverse Mux mode and receiving I-Framing on the E1 without Blue,

Yellow, or Red Alarms or Major Alarm Thresholds being exceeded.

If the E1 Network Configuration is set to NEVER USE and a good E1 is connected, the Alarm & Status display will read NOT USED.

In Single DSU Mode, the DL3800E unit is Active if it is receiving valid E1 pulses from the network without Blue, Yellow, or Red Alarms or Major Alarm Thresholds being exceeded and 1) if, in HSSI mode, the TA must be asserted or 2) if, in non-HSSI mode, you must select DTR or RTS.

A Blue, Yellow, or Red Alarm or the exceeding of Major Alarm

Thresholds will cause the E1 to be taken out of service.

4-10

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

Statistics

This menu allows you to access the performance STATISTICS SUBMENU of any E1 port. Highlight STATISTICS in the INVERSE MUX MAIN MENU, and press the Enter key. The STATISTICS MENU appears (Figure 4-3).

Major

01/01/90 04:58:17

Unit:

0

NET : 2

(114)

Network

15 Minute UAS Major Threshold Exceeded

Major

01/01/90 04:58:17

Unit:

0

NET : 1

(114)

Network

15 Minute UAS Major Threshold Exceeded

Digital Link DL3800E

SR 2.00.00 NODE 7: 01/01/90 05:55:07 MJ

SELECTED DEVICE ADDRESS:

7.00.000

NAME:

 

STATISTICS MENU

Exit

 

 

 

NETWORK 1

STATISTICS

 

 

 

 

 

NETWORK 2

STATISTICS

 

 

 

 

 

NETWORK 3

STATISTICS

 

 

 

 

 

NETWORK 4

STATISTICS

 

 

 

 

 

NETWORK 5

STATISTICS

 

 

 

 

 

NETWORK 6

STATISTICS

 

 

 

 

 

NETWORK 7

STATISTICS

 

 

 

 

 

NETWORK 8

STATISTICS

 

 

 

 

 

Figure 4-3 STATISTICS SUBMENU

Terminal Interface

4-11

4

To view the performance statistics of any one E1 port, highlight that port and press Enter. The NET STATISTICS for that port (Figure 4-4) will appear on the screen.

Figure 4-4 NET STATISTICS MENU

This screen displays the selected port’s E1 performance statistics for the current 15-minute interval and for the past 48-hour interval. The performance statistics for the first 24 hours are in both accumulative form and in 15-minute intervals. The statistics for the second 24 hours are only in accumulative form. It also allows you to clear the display and reset the counters. For the DL3800E unit, the E1 statistics displayed are BPV, EB, FE, ES, SES, BBE, UAS, EFS, ESR, SESR, and BBER.

To view additional pages with this set of performance data, press the Cursor DOWN ARROW, or to view the previous page, press the Cursor UP ARROW.

Additional NET STATISTICS are presented in subsequent screens. To view additional screens with this same set of performance data, press the tab key or the Cursor right and left arrow keys until the next field is highlighted, then press Enter. Continue to press Enter with the NEXT field highlighted to view all the screens.

This screen contains NET STATISTICS snapshots at 15-minute intervals.

4-12

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

DIGITAL LINK DL3800E

SR 3.00.22 NODE

1:

09/20/00 03:55:17 MJ

SELECTED DEVICE ADDRESS:

1.00.000 NAME:

 

 

 

 

NET STATISTICS - PORT

1

Exit

Repeat

Clear

Page

1

 

 

CURRENT SECONDS: 563

 

PAST INTERVALS: 192

ERROR-FREE SECONDS: 100.0%

 

ESR:

0.0%

 

SESR:

0.0%

 

 

BBER:

0.0%

 

 

BPV

 

EB

FE

ES

SES

BBE

UAS

 

CURRENT

 

0

 

0

0

0

0

0

0

 

CUMULATIVE

1

0

 

0

0

0

0

0

0

 

CUMULATIVE

2

0

 

0

0

0

0

0

0

 

03:30-03:45

0

 

0

0

0

0

0

0

 

03:15-03:30

0

 

0

0

0

0

0

0

 

03:00-03:15

0

 

0

0

0

0

0

0

 

02:45-03:00

0

 

0

0

0

0

0

0

 

02:30-02:45

0

 

0

0

0

0

0

0

 

 

Figure 4-5

Additional NET STATISTICS

 

 

 

 

.

 

Table 4-3 NET Statistics Items

 

 

Parameter

Definition

 

 

EFS

Error Free Seconds (EFS) is calculated whenever ESR is calculated, and is the simple

 

percentage complement of ESR: EFS = 100.0 - ESR. When there have been UAS in

 

the statistics history for the past 24 hours, then EFS is set at 100%.

 

 

ESR

Errored Second Ratio (ESR) is the ratio of ES to total seconds in available time during

 

a fixed measurement interval. The fixed interval is the last 24 hours before the current

 

15-minute interval. When there have been UAS in the statistics history for the past 24

 

hours, then ESR is set at 0%.

 

 

SESR

Severely Errored Second Ration (SESR) is the ratio of SES to total seconds in

 

available time during a fixed-measurement interval. The fixed interval to be used is

 

the last 24 hours before the current 15-minute interval. When there have been UAS

 

in the statistics history for the past 24 hours, then SESR is set at 0%.

 

 

BBER

Background Block Error Ratio (BBER) is the ratio of errored blocks to total blocks

 

during a fixed-measurement interval, excluding all blocks during SES and unavailable

 

time. The fixed interval is equal to the last 24 hours before the current 15-minute

 

interval.

 

 

Terminal Interface

4-13

4

 

Table 4-3 NET Statistics Items (Continued)

 

 

Parameter

Definition

 

 

BPV

This display provides the number of Bipolar Violations (BPVs) that have occurred

 

during the accumulation period. A total of 15430 BPVs in a 10-second sliding

 

window (approximately 10-3) will create a Major Alarm and 916 BPVs in a

 

600-second sliding window (approximately 10-6) will create a Minor Alarm.

 

 

FE

A Frame Error (FE) is declared when two out of four consecutive framing bits are in

 

error. Typically, an FE indication will be accompanied by a significant number of

 

payload data bit errors. This display provides the number of FEs that have occurred

 

in the accumulation period.

 

 

EB/CV

An Errored Block (EB) is a block in which one or more bits are in error. The EB if

 

therefore equivalent to the Code Violation (CV) count calculated and displayed in the

 

previous versions of the DL3800E unit. This count allows you to monitor the rate of EB

 

faults on a line that is unavailable.

 

EBs are counted in the unavailable state; ES, SES, and BBE are not counted in the

 

unavailable state.

 

 

ES

An Errored Second (ES) is a one-second period with one or more errored blocks (such

 

as one or more CRC4 errors) or an Out Of Frame (OOF). This display provides the

 

number of ESs that have occurred in the accumulation period. ESs are not

 

accumulated during UAS.

 

 

SES

Severely Errored Seconds (SES) is a one-second period which contains 30% or more

 

errored blocks or at least one severely disturbed period (SDP). An SDP is present if

 

either a LOS, AIAS, or LOF occurs.

 

Since there are 1000 blocks per second, an SES is a one-second period which

 

contains either a combination of 300 or more CRC4 errors, an OOF, or at least one

 

of the following: LOS, AIS, or LOF. This requirement is a slight change from the prior

 

DL3800E unit SES definition, which required 320 or more CRC4 errors or LOS, AIS,

 

or LOF. SESs are not accumulated during UAS.

 

 

BBE

A Background Block Error (BBE) is an errored block not occurring as part of an SES.

 

A BBE is calculated and displayed as a raw count of non-SES EBs. The count is

 

updated at the end of every measurement second excepting any second that is an

 

SES. The updated count is discarded for all UAS.

 

 

4-14

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

 

4

 

 

 

 

 

 

 

Table 4-3 NET Statistics Items (Continued)

 

 

Parameter

Definition

 

 

UAS

Unavailable Seconds. This display provides the number of UAS that have occurred in

 

the accumulation period. At the onset of 10 consecutive SES events, a period of

 

unavailable seconds begins. These 10 seconds are part of the unavailable seconds

 

count. At the onset of 10 consecutive non-SES events, a new period of available time

 

begins. These 10 seconds are part of available time.

 

UAS occurs as soon as a Red Alarm is invoked (such as after two seconds of LOS.)

 

ES, SES, and BBE are not counted during unavailable time. Rate parameters ESR,

 

SESR, and BBER are the ratio of the fault-seconds count to the total seconds in

 

available time.

 

 

 

Event History

Use this screen to review and clear the DL3800E unit alarm and status history.

To view the EVENT HISTORY, move the highlight bar to EVENT HISTORY in the NODE MAIN MENU, and press Enter. Use the up and down keys to move to the next or previous page of the EVENT HISTORY MENU.

Terminal Interface

4-15

4

Table 4-4 Alarm Level

Alarm Parameter

Definition

 

 

 

 

Alarm Level:

 

 

Major

Service affecting

 

Minor

Needs attention, not yet service affecting

Idled

Alarm condition has expired

 

Status

Non-service-affecting event

 

 

 

Date and Time

Date and time of the occurrence or expiration of the alarm/state

 

 

 

Address

The address is the physical location

 

 

 

Device

The device reporting the status and alarm condition (Unit #), and the type of device

 

(NET, DTE, or NODE)

 

 

 

Event Code

Number designation for type of alarm or status condition. This number will be

 

useful when contacting the factory

 

 

 

 

Description

Describes the event

 

 

 

 

To clear the report of all History Events, move the highlight bar to CLEAR

 

HISTORY and press Enter. Figure 4-6 is an example.

Major

01/01/90 17:56:47

Unit: 1NET : 2(33)

 

Loss of Frame

 

 

Idled 01/01/90 17:56:58

Unit: 1NET : 2(13)

 

Loss of Frame Idled

 

DIGITAL LINK DL3800E SR 2.00.000

NODE 7:HOME

01/01/90

03:14:54 MN SELECTED DEVICE ADDRESS: 7.00.000NAME:HOME

 

EVENT HISTORY

Exit

Repeat

Clear History

Page 1

Idled

01/01/9009:02:10Unit 1NET 2

(29)

 

Yellow Signal Detected Idled

 

 

Major

01/01/9009:02:06Unit 1NET 2

(30)

 

Yellow Alarm

 

 

 

 

Status

01/01/9008:58:09Unit 1NET 2

(29)

 

Yellow Signal Detected

 

 

 

Idled

01/01/9008:58:01Unit 2NET 3

(29)

 

Yellow Signal Detected Idled

 

 

Minor

01/01/9008:56:24Unit 1Node

(36)

 

ROM Checksum Failed

 

 

 

 

Figure 4-6 EVENT HISTORY MENU

4-16

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

Configuration

The CONFIGURATION MENU item provides access to a series of submenus to configure various parameters of the unit, DTE, and network.

Highlight Configuration in the INVERSE MULTIPLEXER MAIN MENU and press Enter to access the CONFIGURATION MENU. See Figure 4-7.

Major

01/01/90 04:58:17

Unit:

0

NET

: 2

(114)

Network 15 Minute UAS

Major Threshold Exceeded

Major

01/01/90 04:58:17

Unit:

0

NET

: 1

(114)

Network 15 Minute UAS

Major Threshold Exceeded

DIGITAL LINK DL3800E

SR

2.00.00 NODE 7:

01/01/90 05:55:07 MJ

SELECTED DEVICE ADDRESS:

7.00.000

NAME:

 

 

CONFIGURATION MENU

 

Exit

 

 

 

 

Unit

 

 

 

 

 

 

 

DTE

Network

Network Thresholds

SAVE configuration

Figure 4-7 CONFIGURATION MENU

To access any of the configuration submenus, highlight the desired item and press the Enter key. The following are samples and descriptions of the submenus that can be accessed from the CONFIGURATION MENU.

Unit Configuration

Highlighting UNIT and pressing the Enter key accesses the UNIT CONFIGURATION MENU shown in Figure 4-8. The configurable items and options are described in Table 4-5.

The following parameters can be set or changed for the Node: DATE, TIME, ALARM ENABLE, AUTOMATIC BACKUP, FRONT PANEL, PERMIT SELECT DEVICE ACCESS FROM REMOTE, UNIT NUMBER, UNIT NAME and LOCAL TERMINAL BAUD RATE, BITS/PARITY, STOP BITS, X-ON/X-OFF and MULTIDROP MODE. HARDWARE, SOFTWARE and MIB REVISIONS are view-only items and cannot be changed.

Terminal Interface

4-17

4

DIGITAL LINK DL3800E

SR 3.00.22 NODE

1:

08/27/00 00:54:47 MAJOR

SELECTED DEVICE ADDRESS:

1.00.000

NAME:

 

 

UNIT CONFIGURATION

Exit Confirm

 

 

 

DATE: 08/27/00

 

 

 

 

 

 

TIME: 00:54:38

 

 

 

 

 

 

ALARM ENABLE: Disabled

 

 

 

 

 

AUTOMATIC BACKUP: 5 minutes after a database change.

 

FRONT PANEL: On

 

 

 

 

 

 

PERMIT SELECT DEVICE ACCESS FROM REMOTE:

No

 

UNIT NUMBER:

1

 

 

 

 

 

UNIT NAME:

 

 

 

 

 

 

SOFT SERIAL #: 1389031127991

 

 

 

HARDWARE REVISION: H

 

SOFTWARE REVISION:

3.00.22

(DOWNLOADED)

MIB REVISION: 1.10 January 10 2000

 

 

 

TERMINAL BAUD RATE:

 

9600

 

 

 

TERMINAL #BITS AND PARITY: 8 bits, No parity

 

 

TERMINAL STOP BITS:

 

2 bits

 

 

 

Figure 4-8 UNIT CONFIGURATION MENU

 

 

Table 4-5 Node Configuration Options

 

 

Option

Action

 

 

Date

Move the highlight bar to Date, and enter a valid date with the format

 

MM/DD/YY, and press the Enter key.

 

MM

1-12 month

 

DD

1-31 date

 

YY:

0-99 year

 

 

Time

Move the highlight bar to Time, and enter a valid time with the format

 

hh:mm:ss, and press the Enter key.

 

HH

0-23 hours

 

MM 0-59 minutes

 

SS

0-59 seconds

 

 

Alarm Enable

This option allows you to ENABLE or DISABLE the DL3800E unit External

 

Alarms. Highlight ALARM ENABLE and, using the space bar, toggle

 

between ENABLED and DISABLED until the desired choice appears.

 

 

Automatic Backup

This feature allows you to backup the database to the EEPROM

 

automatically, at certain intervals, or manually. To change the present

 

backup mode, highlight Automatic Backup, and use the Space Bar to toggle

 

between the following choices: after every database change, 15 seconds,

 

30 seconds, 1 minute, five minutes after each change, or Off (must change

 

manually with Save Configuration).

 

 

 

4-18

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

 

Table 4-5 Node Configuration Options

 

 

Option

Action

 

 

Front Panel

This feature enables (On) or disables (Off) your ability to make changes in

 

the configuration or run tests from the front panel display and buttons. To

 

change the Front Panel feature, highlight Front Panel, and use the Space Bar

 

to toggle between Off and On.

 

 

Permit Select Device

This feature enables (Yes) or disables (No) the capability that allows you to

Access From Remote

view and access the local configuration settings from the remote unit.

 

 

Unit Number

Move the Highlight bar to Unit Number, and enter a number between 1 and

 

9999. Note: Each unit must be set to a different number to allow remote

 

communication, and daisy chaining of multiple units. For example, if the

 

remote unit is set to the same number as the local unit, you will not be able

 

to access the remote unit.

 

 

Unit Name

Move the highlight bar to UNIT NAME and enter alphanumeric name of up

 

to 20 digits. Press Enter when finished.

 

 

Soft Serial Number

This feature allows you to view the local serial number.

 

If the remote unit is not software compatible with the soft serial number

 

feature, the Unit Configuration screen still displays the serial number field

 

but the information is incorrect. All the other information on the screen (for

 

example, node number, hardware revision number) is still accurate.

 

The soft serial number is preserved if you enter a “Reset Entire Node

 

Database to Factory Defaults” command.

 

 

Terminal Baud Rate

This feature selects the terminal baud rate. To set or change the baud rate,

 

move the highlight bar to Terminal Baud Rate, and press the Space Bar to

 

toggle between the options: 300, 600, 1200, 2400, 4800, 9600, 19,200,

 

and 38,400. (Default - 9600)

 

 

Terminal Parity & Bits

This feature selects the terminal parity and Bits. To set or change the local

 

terminal parity and Bits, move the highlight bar to Terminal Parity & Bits,

 

and press the Space Bar to toggle between the options 7,8, None, Odd,

 

and Even. (Default - 8 None)

 

 

Terminal Stop Bits

This feature selects the terminal stop bit requirement. To set or change the

 

requirement, move the highlight bar to Terminal Stop Bits, and press the

 

Space Bar to toggle between the options 1, 1.5, or 2. (Default - 2)

 

 

Terminal XOn/XOff

This allows you to enable or disable the XOn/XOff Flow Control feature.

 

With the Flow Control feature On, the terminal can request that the unit quit

 

sending data when its buffers are full. To set or change this feature, move

 

the highlight bar to Terminal XOn/XOff, and use the Space Bar to select

 

choice. (Default - On)

 

 

Terminal Interface

4-19

4

 

Table 4-5 Node Configuration Options

 

 

Option

Action

 

 

Terminal Multidrop Mode

If the terminal is connected to more than one DL3800E, it must be in

 

Multidrop Mode. If it is connected to only one unit, this feature can be

 

disabled. When it is disabled, the system starts up directly, without you

 

having to log in. To change this configuration, move the highlight bar to

 

Terminal Multidrop Mode, and use the Space Bar to toggle between the

 

options Enabled, and Disabled. (Default - Enabled)

 

 

To update the node database with all the changes made, move the highlight bar to CONFIRM and press Enter. Changes can be confirmed after each change, or, after all changes have been made. This completes the node configuration. To abort the changes, move the highlight bar to EXIT and press Enter before confirming the changes. (Note: If the terminal speed, parity or stop bits are changed, it is necessary to change the terminal before continuing.)

DTE Configuration

This menu allows you to configure certain parameters of the DTE, including the interface type, clock source, status of leads, and loss criteria.

To access the DTE CONFIGURATION MENU, move the highlight bar to DTE CONFIGURATION in the CONFIGURATION MENU, and press

Enter.

Figure 4-9, 4-10, 4-11, and 4-12 are examples of the DTE Configuration Interface Menus (V.35, RS-449, X.21, and HSSI), and Table 4-6 describes the menu items.

4-20

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

DIGITAL LINK

DL3800E SR 3.00.22 NODE

1:

09/20/00 03:55:47 MJ

SELECTED DEVICE ADDRESS:

1.00.000

NAME:

 

DTE CONFIGURATION

Exit

Confirm

 

 

DTE INTERFACE:

 

V.35

 

 

DTE TOGGLE

INTERVAL:

2 sec

 

 

V.35/RS-449/X.21 OPTIONS:

 

 

 

CLOCK:

 

SCTE

Tx Clock: INVERTED

Rx Clock: NORMAL

RLSD

MODE:

 

AUTOMATIC

 

 

DSR

MODE:

 

AUTOMATIC

 

 

CTS

MODE:

 

AUTOMATIC

 

 

TM

MODE:

 

AUTOMATIC

 

 

DTE LOSS DETECTION: NONE

 

 

 

HSSI OPTIONS:

 

 

 

 

 

CA

MODE:

 

 

 

 

 

DTE LOSS DETECTION:

Figure 4-9 DTE CONFIGURATION MENU (V.35)

DIGITAL LINK

DL3800E

SR 3.00.22 NODE

1:

08/27/00 00:52:37 MJ

SELECTED DEVICE ADDRESS:

1.00.000

NAME:

 

DTE CONFIGURATION

Exit

Confirm

 

 

DTE INTERFACE:

 

RS-449

 

 

DTE TOGGLE

INTERVAL:

None

 

 

V.35/RS-449/X.21 OPTIONS:

 

 

 

CLOCK:

 

SCTE

Tx Clock: NORMAL

Rx Clock: NORMAL

RLSD

MODE:

 

AUTOMATIC

 

 

DSR

MODE:

 

AUTOMATIC

 

 

CTS

MODE:

 

AUTOMATIC

 

 

TM

MODE:

 

AUTOMATIC

 

 

DTE LOSS DETECTION: RTS

 

 

 

HSSI OPTIONS:

 

 

 

 

 

CA

MODE:

 

 

 

 

 

DTE LOSS DETECTION:

Figure 4-10 DTE CONFIGURATION MENU (RS449)

Terminal Interface

4-21

4

DIGITAL LINK

DL3800E

SR 3.00.22 NODE

1:

09/20/00 03:56:16 MJ

SELECTED DEVICE ADDRESS:

1.00.000

NAME:

 

You must confirm to save changes.

 

 

DTE CONFIGURATION

Exit

Confirm

 

 

DTE INTERFACE:

 

X.21

 

 

DTE TOGGLE

INTERVAL:

2 sec

 

 

V.35/RS-449/X.21 OPTIONS:

 

 

 

CLOCK:

 

SCTE

Tx Clock: INVERTED

Rx Clock: NORMAL

RLSD

MODE:

 

AUTOMATIC

 

 

DSR

MODE:

 

 

 

 

 

CTS

MODE:

 

 

 

 

 

TM

MODE:

 

 

 

 

 

DTE LOSS DETECTION: NONE

 

 

 

HSSI OPTIONS:

 

 

 

 

 

CA

MODE:

 

 

 

 

 

DTE LOSS DETECTION:

Figure 4-11 DTE CONFIGURATION MENU (X.21)

DIGITAL LINK

DL3800E

SR 3.00.22 NODE

1: 08/27/00 00:53:38 MAJOR

SELECTED DEVICE ADDRESS:

1.00.000

NAME:

DTE CONFIGURATION

Exit

Confirm

 

DTE INTERFACE:

 

HSSI

 

DTE TOGGLE

INTERVAL:

2 sec

 

V.35/RS-449/X.21 OPTIONS:

 

 

CLOCK:

 

 

Tx Clock:

Rx Clock:

RLSD

MODE:

 

 

 

 

DSR

MODE:

 

 

 

 

CTS

MODE:

 

 

 

 

TM

MODE:

 

 

 

 

DTE LOSS DETECTION:

 

 

 

HSSI OPTIONS:

 

 

 

 

CA

MODE:

 

AUTOMATIC

 

DTE LOSS DETECTION: TA

Figure 4-12 DTE CONFIGURATION MENU (HSSI)

4-22

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

 

4

 

 

 

 

 

 

 

 

 

 

Table 4-6 DTE CONFIGURATION MENU Options

 

 

 

 

Parameter

Description/Action

 

 

 

 

DTE Interface

This allows you to select V.35, RS449, X.21 or HSSI as the DTE Interface.

 

 

To change the present DTE Interface, use the UP and DOWN ARROW

 

 

keys to highlight DTE Interface. Use the Space Bar to toggle between

 

 

V.35, RS-449, X.21, and HSSI until the desired choice appears. Highlight

 

 

Confirm, and press the Enter key to confirm the change. (Default - V.35)

 

 

 

 

DTE Toggle Interval

This parameter determines the length of the interval during which the DTE

 

 

lead indicating signal presence is deasserted when a change in the DTE

 

 

data rate occurs.

 

 

The DTE data rate changes if a network port goes or is taken out of

 

 

service, or if a network loopback is set. The DTE lead toggled is RLSD in

 

 

V.35, RS449, and X.21 modes, and CA in HSSI mode. This toggle

 

 

interval is needed by some DTE devices to allow resynchronization to the

 

 

new data rate. THe interval may be set to NONE, 0.5, 1.0, 1.5, or 2.0

 

 

seconds. (Default - NONE)

 

 

 

 

Clock

This item allows you to enable either the SCT or SCTE leads, and to set the

 

 

transmit (Tx), and receive (Rx) to Normal or Inverted mode.

 

 

Note: In x.21 mode SCT corresponds to the S clock signal and SCTE to

 

 

the x clock signal.

 

 

To set the DTE Clock parameters, use the UP and DOWN ARROW keys to

 

 

highlight the configurable Clock items, and use the Space Bar to toggle

 

 

between the selections until the desired choice appears. The options are

 

 

SCT or SCTE, Tx Normal or Inverted, and Rx Normal or Inverted. When

 

 

the desired selection is in the display, highlight Confirm, and press the

 

 

Enter key to confirm the change (Default - SCTE, Tx Normal, Rx Normal)

 

 

 

 

RLSD (Receive Line Signal

This allows you to Assert, DeAssert, or set to Automatic the RLSD leads.

 

Detector)

To change or set the RLSD lead status, use the UP and DOWN ARROW

 

 

 

 

keys to highlight RLSD, and use the Space Bar to toggle between Assert,

 

 

DeAssert, or Automatic until the desired choice appears. Highlight

 

 

Confirm, and press the Enter key to confirm the change. (In Automatic

 

 

mode, the 3800E places the signal high when you have a clear signal

 

 

from the network, indicating the E1 is up and running.)

 

 

In X.21 mode, RLSD refers to the X.21 signal called Indication. (Default -

 

 

Automatic)

 

 

 

 

 

Terminal Interface

4-23

4

 

Table 4-6 DTE CONFIGURATION MENU Options (Continued)

 

 

Parameter

Description/Action

 

 

DSR (Data Set Ready)

This allows you to Assert, DeAssert, or set to automatic the DSR leads.

 

To change or set the DSR lead status, use the UP and DOWN ARROW

 

keys to highlight RLSD, and use the Space Bar to toggle between Assert,

 

DeAssert, or Automatic until the desired choice appears. Highlight

 

Confirm, and press the Enter key to confirm the change. (In Automatic

 

mode, the 3800E places the signal high when the DTE is sending the

 

associated signal lead DTR.) (Default - Automatic)

 

 

CTS (Clear To Send)

This allows you to Assert, DeAssert, or set to Automatic the CTS leads.

 

To change or set the CTS lead status, use the UP and DOWN ARROW

 

keys to highlight CTS, and use the Space Bar to toggle between Assert,

 

DeAssert, or Automatic until the desired choice appears. Highlight

 

Confirm, and press the Enter key to confirm the change. (In Automatic

 

mode, the 3800E places the signal high when the DTE is sending the

 

associated signal lead RTS.) (Default-Automatic)

 

 

TM (Test Mode)

This allows you to Assert, DeAssert, or set to Automatic the TM leads.

 

To change or set the TM lead status, use the UP and DOWN ARROW keys

 

to highlight TM, and use the Space Bar to toggle between Assert,

 

DeAssert, or Automatic until the desired choice appears. Highlight

 

Confirm, and press Enter to confirm the change. (In Automatic mode, the

 

3800E places the signal high when the DCE’s signal leads for enabling

 

tests are placed high by the DTE.) (Default - Automatic)

 

 

DTE Loss Detection

Sets the criteria by which a DTE Loss Of Signal will be detected.

 

In X.21 mode RTS refers to the X.21 signal called Control.

 

To change or set the DTE LOS criteria, use the UP and DOWN ARROW

 

keys to highlight DTE LOSS DETECTION, and use the Space Bar to toggle

 

between the choices: RTS, DTR, and None. When the desired choice is

 

shown, highlight Confirm, and press Enter to confirm the change.(In

 

x.21 mode, RTS refers to the x.21 signal called Control). (Default - RTS)

 

The following entries must be added:

 

 

4-24

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

 

4

 

 

 

 

 

 

 

 

 

 

Table 4-6 DTE CONFIGURATION MENU Options (Continued)

 

 

 

 

Parameter

Description/Action

 

 

 

 

CA MODE

Allows user to set the CA lead to ASSERT, DEASSERT, or AUTOMATIC

 

 

when the interface is set to HSSI.

 

 

This setting is only accessible when the interface type is set to HSSI. To

 

 

change or set the CA lead status, use the UP and DOWN ARROW keys to

 

 

highlight CA and use space bar to toggle between ASSERT, DESSART, or

 

 

AUTOMATIC until the desired choice appears. Highlight CONFIRM and

 

 

press Enter to confirm the change. (In AUTOMATIC mode, the 3800

 

 

places the signal high when there is one or more active network signals.)

 

 

(Default - AUTOMATIC)

 

 

 

 

DTE LOSS DETECTION

Allows users to set the criteria by which a DTE Loss of Signal will be

 

 

detected when the interface is set to HSSI.

 

 

This setting is only accessible when the interface type is set to HSSI. To

 

 

change or set the DTE LOS criteria, use the UP and DOWN ARROW keys

 

 

to highlight DTE LOSS DETECTION and use the space bar to toggle

 

 

between TA and NONE until the desired choice appears. Highlight

 

 

CONFIRM and press Enter to confirm the change. (Default - TA)

 

 

 

 

 

Network Configuration

This submenu allows you to configure various Network parameters. The configurable parameters include CRC4, TSLOT16, and National Bits.

To access the NETWORK CONFIGURATION MENU, move the highlight bar to NETWORK CONFIGURATION in the CONFIGURATION MENU and press Return.

The NETWORK CONFIGURATION MENU will be slightly different depending on which version DL3800E unit is being used. Figure 4-13 shows the NETWORK CONFIGURATION MENU. Table 4-7 describes the various parameters included.

Terminal Interface

4-25

4

Major

01/01/90 04:58:17

Unit:

0

NET : 2

(114)

 

 

 

 

 

Network 15 Minute UAS

Major Threshold Exceeded

 

 

 

 

 

Major

01/01/90 04:58:17

Unit:

0

NET : 1

(114)

 

 

 

 

 

Network 15 Minute UAS Major Threshold

Exceeded

 

 

 

 

 

DIGITAL LINK DL3800E

SR 2.00.00 NODE

 

7:

01/01/90 05:55:07

MJ

 

 

 

SELECTED DEVICE ADDRESS:

7.00.000

NAME:

 

 

 

 

 

 

NETWORK CONFIGURATION

Exit Confirm

 

 

 

 

 

 

 

 

PORT

ALARM

ACTIVE/RESTORE CRC4

 

TSLOT16

N1

N2

N3

N4

N5

1

REPORT

Use w/auto restoreENABLE

DATA

 

1

1

1

1

1

2

REPORT

Use w/auto restoreENABLE

DATA

 

1

1

1

1

1

3

MASK

Never Use

 

ENABLE

DATA

 

1

1

1

1

1

4

MASK

Never Use

 

ENABLE

DATA

 

1

1

1

1

1

5

MASK

Never Use

 

ENABLE

DATA

 

1

1

1

1

1

6

MASK

Never UseENABLE

DATA

 

 

 

1

1

1

1

1

7

REPORT

Use w/auto restoreENABLE

DATA

 

1

1

1

1

1

8

MASK

Never Use

 

ENABLE

DATA

 

1

1

1

1

1

Primary Clock Source:

Xmt:

Int

Rcv:

Net 1

 

Secondary Clock Source: Xmt:

Net

Rcv:

Net 2

 

DSU MODE: Inverse Mux (Standard

operation)

Suppress Yellow Det.: Disabled

Second Error restoral interval:

 

Immediate

 

 

Hardware Revision:

Port 3&4: --

 

Port 5&6: --

Port 7&8: --

 

Figure 4-13 Network Configuration Screen

 

Table 4-7 NETWORK CONFIGURATION MENU Options

 

 

Parameter

Description/Action

 

 

Alarm

This item allows you to enable (Report) or disable (Mask) the DL3800E unit

 

from reporting alarms or sending SNMP traps from any of the individual E1

 

network ports.

 

To change the present Alarm mode, use the UP and DOWN ARROW keys

 

to highlight the Alarm item in the appropriate line for the desired port, and

 

use the Space Bar to toggle between Report and Mask. Highlight Confirm,

 

and press the Enter key to confirm any change. (Default - Mask)

 

 

Active/Restore Mode

Selects the Active/Restore Mode for each of the E1 network ports.

 

To change the present mode, use the UP and DOWN ARROW keys to

 

highlight the Active/Restore Mode option for the desired port, and use the

 

Space Bar to toggle between the following selections until the desired choice

 

appears: use w/auto restore (failed line is restored automatically when

 

problem is solved); use w/manual restore (user must manually restore line);

 

Never Use (never mux data onto this line); Install/Test only (always mux

 

data onto this line, even when it’s bad). (Default - Never Use)

 

 

CRC4

Allows CRC4 coding to be enabled or disabled

 

 

4-26

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

 

Table 4-7 NETWORK CONFIGURATION MENU Options (Continued)

 

 

Parameter

Description/Action

 

 

TSLOT16

Allows you to select between DATA and FLAG. If DATA is selected, timeslot

 

16 will be used for payload data. If FLAG is selected, timeslot 16 will not be

 

used for payload and will be stuffed with the value 7E hex.

 

NOTE: E1 links are not truly independent. This field is selectable on a per-

 

E1 link basis. When the DL3800E unit treats the set of E1 links as a whole.

 

If only one E1 link is selected for FLAG, then the DTE bandwidth is reduced

 

to an amount corresponding to all links having been set for a time slot loss.

 

 

Primary Clock Source

This allows you to select either the Primary Clock Source, transmit (xmt), and

 

receive (rcv) for the individual E1 network ports.

 

To change the present Primary Clock Source, use the UP and DOWN

 

ARROW keys to highlight either Xmt or Rcv on the Primary Clock Source

 

line, and use the Space Bar to toggle between the choices. For Xmt

 

(transmit) the choices are Network (NET), External (EXT), and Internal (INT).

 

For Rcv (receive) the choices are Net-1 through Net 8 (each of the individual

 

E1 network ports), or Auto (the unit selects the best source).

 

The DL3800E unit can use several sources to generate the transmit clock.

 

The Internal selection uses an oscillator within the DL3800E, the Network

 

setting recovers the clock from the selected E1 line, and the External setting

 

recovers the clock from the dB-9 Ext. Clock connector on the rear panel of

 

the unit. Typically, the clock source on one side of the link is set to Internal,

 

and the other is set to Network. (Default - Smt: Int., Rcv: Net 1)

 

 

Secondary Clock Source

This allows you to select either the Secondary Clock Source, transmit (xmt),

 

and receive (rcv) for the individual E1 network ports.

 

To change the present Secondary Clock Source, use the UP and DOWN

 

ARROW keys to highlight either Xmt or Rcv on the Secondary Clock Source

 

line, and use the Space Bar to toggle between the choices. For Xmt

 

(transmit), the choices are Network (NET), External (EXT), and Internal (INT).

 

For Rcv, the choices are Net-1 through Net 8 (each of the individual E1

 

network ports) or Auto (the unit selects the best source) until the desired

 

choice appears. (Default - Xmt: Int, Rcv: Net2)

 

 

DSU Mode

This allows youyou to set the DL3800E unit up as a DSU, with one DTE, and

 

one Network port.

 

To change the present DSU Mode level, use the UP and DOWN ARROW

 

keys to highlight the DSU Mode item, and use the Space Bar to toggle

 

between the following selections until the desired choice appears: Inverse

 

MUX (standard operation) or Single E1 DSU. Highlight Confirm, and press

 

the Enter key to confirm the change. (Default-Inverse Mux)

 

 

Terminal Interface

4-27

4

 

Table 4-7 NETWORK CONFIGURATION MENU Options (Continued)

 

 

Parameter

Description/Action

 

 

Suppress Yellow Detect

This item allows you to configure the unit to ignore or report RAI alarm

 

conditions.

 

To change the present Suppress Yellow Detect, use the UP and DOWN

 

ARROW keys to highlight the item, and use the Space Bar to toggle

 

between Enabled and Disabled until the desired choice appears. Highlight

 

Confirm, and press the Enter key to confirm the change. (Default -

 

Disabled)

 

 

Second Error Restoral

The second error restoral configuration is found on the Network

Interval

Configuration Screen on the DL3800E/3900s. Choices for configuration are

 

immediate, 5, 10, 15, 30 seconds and 1, 5, 10, 15 minutes. As seen from

 

previous discussions on fallback conditions, you should notice that it is

 

possible that an E1 will constantly go in and out of service on a flaky circuit.

 

Every time an E1 is taken out of service or put in-service this will

 

momentarily affect your traffic on the other E1s. In order to prevent this

 

problem second error restoral was created.

 

Second error restoral is a feature that will allow the Imux units to monitor a

 

bad E1 for a period of time after it has gone out of service and come back

 

on-line. Once an E1 has come back after the first out of service state has

 

occurred the Imux unit will monitor the E1 for the second error restoral

 

interval selected. If a second out of service state occurs during the

 

monitoring period the Imux unit will keep the E1 out of service (when the E1

 

is good again) for the SER time. Every time a new error occurs with in the

 

second error restoral period, when it is keeping the E1 out of service, will

 

restart the SER counter. Once the SER timer expires the E1 will be restored

 

and the process will start again. You can look SER like two strikes and your

 

out for E1s on Imux units.

 

 

Network Thresholds

This menu allows you to enable/disable the automatic FALLBACK feature and set the various Network Alarm Thresholds that will cause the E1 lines to automatically be taken out of service.

Figure 4-14 is an example of the NETWORK ALARM THRESHOLDS configuration screen.

4-28

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

Major

01/01/90 04:58:17

Unit:

0

NET : 2

(114)

Network 15 Minute UAS

Major Threshold Exceeded

Major

01/01/90 04:58:17

Unit:

0

NET : 1

(114)

Network 15 Minute UAS

Major Threshold Exceeded

DIGITAL LINK DL3800E

SR

2.00.00 NODE 7: 01/01/90 05:55:07 MJ

SELECTED DEVICE ADDRESS:

7.00.000

 

NAME:

 

NETWORK ALARM THRESHOLDS

Exit

Confirm

 

CONSECUTIVE THRESHOLDS

 

FALLBACK

 

SECONDS

 

 

CRC SecondsDisabled10

 

 

 

 

SES

Disabled 10

 

 

 

UAS

Disabled 10

 

 

 

 

 

INTERVAL THRESHOLDS

15 MINUTES

24 HOURS

 

 

 

 

FALLBACK

MAJOR

MINOR

FALLBACK

MAJOR

MINOR

BPV Err Sec(10E-3)

Disabled

100

100

Disabled 10

10

CRC Seconds

Disabled

100

100

Disabled 10

10

ES

Disabled

100

100

Disabled 10

10

SES

Disabled

100

100

Disabled 10

10

UAS

Disabled

100

100

Disabled 10

10

Figure 4-14 Network Thresholds Configuration

Through the CONSECUTIVE THRESHOLDS section of this menu, you disable or enable the fallback condition relating to the number of consecutive seconds (from 1 to 100) in which a CRC, SES or UAS alarm threshold is exceeded. To Enable or Disable the FALLBACK feature, highlight the appropriate item, and use the space bar to select your choice. To change the number of errored consecutive seconds that will cause that E1 line to go out of service, highlight the appropriate item and press Enter. When the highlight bar is blank, type in the number of seconds desired.

NOTE: Default settings are shown in Figure 4-14

The INTERVAL THRESHOLDS section of this menu allows you to enable or disable the FALLBACK feature. FALLBACK relates to the number of inerror seconds (from 1 to 900) occurring in a 15-minute period, or the number of in-error 15-minute intervals (from 1 to 96) occurring in a 24hour period that will cause a MAJOR or MINOR alarm. To Enable or Disable the FALLBACK feature, highlight the appropriate item and use the space bar to select your choice. To change the number of in error seconds or 15-minute intervals that will cause a MAJOR or MINOR network alarm, highlight the appropriate item and press Enter. When the highlight bar is blank, type in the number desired.

Terminal Interface

4-29

4

Save Configuration

This option allows you to manually back up the database to EEPROM at any time. To Save Configuration and back up the database to EEPROM, highlight the Save Configuration in the CONFIGURATION MENU, and press the Enter key.

System Utilities

The SYSTEM UTILITIES MENU in the INVERSE MULTIPLEXER MAIN MENU is used to access submenus in the DL3800E unit to configure various system utilities and perform certain functions with the DL3800E. These System Utilities include Software Download, Delete Entire Node Configuration, Login Configuration, SNMP Configuration, and Save Configuration.

To access the SYSTEM UTILITIES MENU, highlight System Utilities in the INVERSE MULTIPLEXER MAIN MENU, and press the Enter key.

Figure 4-15 is an example of the SYSTEM UTILITIES MENU that will appear. To access any of the submenus or perform certain functions, highlight that line item, and press the Enter key.

Major

01/01/90 04:58:17

Unit:

0

NET : 2

(114)

Network 15 Minute UAS

Major Threshold Exceeded

Major

01/01/90 04:58:17

Unit:

0

NET : 1

(114)

Network 15 Minute UAS

Major Threshold Exceeded

DIGITAL LINK DL3800E

SR

2.00.00 NODE 7: 01/01/90 05:55:07 MJ

SELECTED DEVICE ADDRESS:

7.00.000

NAME:

 

SYSTEM

UTILITIES MENU

 

Exit

 

 

 

SYSTEM

UTILITIES MENUExit

 

 

 

 

 

Software Download

 

 

 

 

DELETE Entire Unit Configuration

Login Configuration

SNMP Configuration

SAVE Configuration

Figure 4-15 SYSTEM UTILITIES MENU

4-30

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

Software Download

This selection is used to choose the desired mode for upgrading the DL3800E unit software revision level via download if this option is available. Highlight SOFTWARE DOWNLOAD in the SYSTEM UTILITIES MENU and press Enter. The SOFTWARE DOWNLOAD MENU (Figure 4-16) appears on the screen.

DIGITAL LINK

DL3800E

SR

3.00.22

NODE

1: 08/27/00 00:55:24 MAJOR

SELECTED DEVICE ADDRESS:

1.00.000

NAME:

DOWNLOAD NEW

SOFTWARE

Exit

Confirm

DOWNLOAD

PROTOCOL:

None

 

 

 

DOWNLOAD

DESTINATION: Remote Unit

 

 

-- DOWNLOAD OPTIONS, LOCAL END --

IMMEDIATE SOFTWARE ACTIVATION: Enabled

RAM SOFTWARE OPTIONS: None

Figure 4-16 SOFTWARE DOWNLOAD MENU

NOTE: DL3800E units with different software versions may not support all features available in the more recent version. It is recommended that local and remote units have identical software versions installed. If possible, both local and remote units should always be upgraded when installing newer software versions.

The following equipment is required to download new software.

A PC with a disk drive capable of reading an MS DOS binary file is required. Quick Eagle Networks provides a 3.5 inch floppy formatted for 1.4 Mb for downloading software.

A terminal emulation program such as Procomm, Mirror, or Xtalk with VT100 or ANSI emulation that supports one or all of the following:

Motorola S-Records with ASCII Transfer

Binary Image with Xmodem

Binary Image with Kermit

Make the proper RS-232 connection between the PC and the DL3800E. A DE-9 connector is pinned out on the DL3800E unit such that the use of a null modem is not necessary. DE-9 to DB-25 adapters may be needed depending upon the PC used.

Terminal Interface

4-31

4

NOTE: The following steps are recommended before initiating the download process.

Disable all control lead dependencies (RTS, CTS, DCD, etc.)

Disable XON/XOFF flow control.

Disable DCD (Data Carrier Detect) aborts (especially on Procomm).

1.Copy the files off the floppy onto the hard drive on the PC. The names of the files will vary in accordance with the current software revision. The file name should look similar to the following: V10xxxxx.RAM.

2.Start the emulation program on the PC and set it up match the DL3800E unit comm port configuration. Default configuration for the DL3800E unit is 9600 Baud, 8 bits, No parity, 2 stop bits. Connect the PC serial port to the DL3800E unit COMM PORT.

3.If the DL3800E unit is set up for “Direct Terminal” configuration, typing a Ctrl-L will refresh the screen. If it is set up for multidrop mode, see “Log In/Log Off” on page 4-1 on how to Log in to a unit.

4.Select the Software Download option from the SYSTEM

UTILITIES MENU. On the SYSTEM UTILITIES MENU, scroll down to where it says None and press the space bar until the desired mode appears. Select CONFIRM and press Enter again to save the change. The DL3800E unit is now ready to receive a file.

5.Enter the file transfer mode on the terminal emulation program and transfer the appropriate file. The file transfer will take at least 10 minutes at 9600 baud.

6.Once the file has downloaded, the DL3800E unit will take up to 30 seconds to reboot if the IMMEDIATE SOFTWARE ACTIVATION feature is enabled. If any communications errors were encountered, it may be necessary to perform this operation again.

4-32

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

Software Download Options

Immediate Software Activation (Enable/Disable)

The IMMEDIATE SOFTWARE ACTIVATION mode is controlled from the SYSTEMS UTILITIES/SOFTWARE DOWNLOAD MENU. When the IMMEDIATE SOFTWARE ACTIVATION feature is enabled, the software download (using MSR, Xmodem, Kermit, TFTP) is immediately activated (that is, copied from RAM to FLASH and rebooted).

For consistency with the previous software version, IMMEDIATE=enabled is the default setting. If the IMMEDIATE SOFTWARE ACTIVATION feature is disabled, the software download (using MSR, Xmodem, Kermit, TFTP) is not activated (that is, not copied from RAM to FLASH and not rebooted).

You must activate the software at a later time by issuing a software download activation command from the System Utilities/Download Software/ RAM SOFTWARE OPTIONS selection field. When the software activation command is executed, the system copies the software image from RAM to Flash and reboots.

A system restart (power cycle) that occurs after the download, but before the activation, will not activate the new software. Loss of power causes the non-activated software download to be lost.

Download Destination (Local Unit, Remove Unit, Both Units)

This feature provides software to be loaded to either the local unit, the remote unit, or both. Use of the Remote or Both option requires use of the Xmodem or Kermit protocol.

A file image loaded to the remote unit is sent over the proprietary IMUX Embedded Data Link (EDL). The EDL is available regardless of the E1 line coding and framing.

To download to the Remote Unit, you do not log into the Remote; instead you select the download destination using the Download Destination field which allows a download to both units at once. It also minimizes disruption to the terminal interface session when the Remote Unit does an immediate software activation (which involves that unit’s rebooting).

Terminal Interface

4-33

4

RAM Software Options

RAM Software Options - Query RAM Software

This feature determines when a valid software image exists in RAM by checking the CRC and image ID. The query indicates if the software can be activated in the unit.

The following response messages are possible:

RAM Image is valid. - CRC is valid, Image ID is valid

RAM Image is active - no reboot necessary. - CRC is valid, Image ID is valid, but images are identical.

RAM Image is invalid (Product ID Error) xxxxxx - CRC is valid, Image ID is xxxxxx.

RAM Image is invalid (Size too small) - Header indicated the code buffer is too small.

RAM Image is invalid (Size too big) - Header indicated the code buffer is beyond its range.

RAM Image is invalid (CRC error) - CRC is invalid.

The DL3800E unit image ID is reserved for use in a future application.

This command does not activate the software if it is downloaded and is pending activation, nor does it indicate the software revision of the downloaded image.

Querying the Remote Unit is performed by first logging into the remote unit from the Main Menu, then navigating to this menu.

RAM Software Options - Activate RAM Software

This feature activates downloaded software by copying the code from RAM to FLASH and then rebooting the unit. If a valid (that is, Image ID and CRC are valid) software image does not exist in RAM, the command fails and a reboot will not occur.

An extended loss of power causes the non-activated software download to be lost.

Modifying this setting in the Remote Unit is performed by first logging into the remote unit from the Main Menu, then navigating to this menu.

4-34

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

TFTP Software Download

If immediate software activation is enabled on the target unit, the software is downloaded to the target unit, and is activated by copying the code from RAM to FLASH and then rebooting.

A TFTP Software Download server is built into the DL3800E. This feature allows you to do an TFTP transfer (using the SLIP/NMS port) to the unit RAM. You issue the “Put” command to the unit to initiate the transfer. If you specify the remote unit IP address, the local unit forwards the TFTP packets to the remote unit.

Once the transfer is complete, activation is based on the setting of the Immediate Software Activation feature with the following results:

If Immediate Software Activation is disabled on the target unit, the software is downloaded to the RAM of the target unit, but is not activated and a reboot does not occur.

If Immediate Software Activation is enabled on the target unit, the software is downloaded to the RAM of the target unit, and is activated by copying the code from RAM to FLASH memory and then rebooting.

The performance of the TFTP data transfer is limited by the speed of the NMS/SLIP port, which has a maximum 38400 baud rate and the Embedded Data Link if the transfer is going to the remote unit. Only the “Put” TFTP server is functional; you cannot do a “Get” of the software from the unit.

Ensure that you specify binary mode instead of ascii mode in the TFTP client.

Delete Entire Unit Configuration (revert to factory config)

WARNING: This command will interrupt service.

Deleting the unit database causes the unit, and any other device's database within that unit, to be reset to the factory default setting. All device names will be erased, and all connections will be removed. The time and date, however, will remain the same, and the node number will be set to “0.00.00”.

As the warning states above, if there are any valid connections in the node, execution of this command will interrupt service.

Terminal Interface

4-35

4

To delete the entire unit configuration, select DELETE ENTIRE UNIT CONFIGURATION from the SOFTWARE UTILITIES MENU, and press Enter. Use the arrow keys to highlight the Desired Action field. Press the space bar until RESET ENTIRE NODE DATABASE TO FACTORY DEFAULTS appears in the field. The change must then be confirmed. Move the highlight bar to CONFIRM, and press the Enter key. Deleting the entire node configuration puts all parameters back to their Factory Default Settings.

From the SOFTWARE UTILITIES MENU (Figure 4-17 on page 4-36) you may also perform the following functions:

Delete RAM code and Revert to ROM code

Restart Node Software

Major

01/01/90 04:58:17

Unit:

0

NET : 2

(114)

Network 15 Minute

UAS

Major Threshold Exceeded

Major

01/01/90 04:58:17

Unit:

0

NET : 1

(114)

Network 15 Minute

UAS Major Threshold Exceeded

DIGITAL LINK DL3800E

SR 2.00.00 NODE 7: 01/01/90 05:55:07 MJ

SELECTED DEVICE ADDRESS:

7.00.000

NAME:

 

DELETE

ENTIRE UNIT CONFIGURATION

 

Exit

 

DESIRED ACTION: None

 

 

 

 

 

DO YOU REALLY WANT TO DO THIS? PLEASE CONFIRM:

Confirm

Figure 4-17 SOFTWARE UTILITIES MENU

Delete RAM Code and Revert to ROM Code

To delete RAM code and revert to ROM code, select DELETE ENTIRE UNIT CONFIGURATION from the SOFTWARE UTILITIES MENU, and press Enter. Use the arrow keys to highlight the Desired Action field. Press the space bar until DELETE RAM CODE AND REVERT TO ROM CODE appears in the field. The change must then be confirmed. Move the highlight bar to CONFIRM, and press Enter.

Restart Node Software

Restart Node Software resets the unit without powering down.

4-36

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

To Restart Node Software, select DELETE ENTIRE UNIT CONFIGURATION from the SOFTWARE UTILITIES MENU (Figure 4-17) and press Enter. Use the arrow keys to highlight the Desired Action field. Press the space bar until RESTART NODE SOFTWARE appears in the field. Confirm the change. Move the highlight bar to CONFIRM, and press Enter.

Login Configuration

This screen allows you to designate a NAME, PASSWORD and ACCESS PRIVILEGE LEVEL for up to eight users.

When the unit is shipped, the factory defaults for username and password are null. Pressing Enter bypasses both of these parameters until the first name and password are entered.

To access the LOGIN CONFIGURATION MENU, move the highlight bar to LOGIN CONFIGURATION in the NODE MAIN MENU and press Enter. Figure 4-18 is an example of the LOGIN CONFIGURATION MENU.

DIGITAL LINK DL3800E

SR 3.00.22 NODE

1:

08/27/00 00:55:51 MJ

SELECTED DEVICE ADDRESS:

1.00.000

NAME:

 

LOGIN CONFIGURATION

Exit

Confirm

 

 

 

USER IDENTIFICATION

PASSWORD

ACCESS TYPE(S)

1)

Cole Porter

12CP

 

Full access

 

2)

Arthur Fiedler

Arty1

Maintenance

 

3)

Louie Armstrong

Satchmo

Provisional

 

4)

Billie Holiday

LadyDay

Full access

 

5)

 

 

 

No access

 

6)

 

 

 

No access

 

7)

 

 

 

No access

 

8)

 

 

 

No access

 

TERMINAL AUTOMATIC LOGOUT:

Off. (Must use Logout to

return to login prompt).

TELNET AUTOMATIC LOGOUT: 5 minutes after no keyboard

activity.

Figure 4-18 LOGIN CONFIGURATION MENU

NOTE: Name and Password are case-sensitive

Terminal Interface

4-37

4

Users must have Full Access class to view or change this screen.

The name and password can be any alphanumeric designation up to 16 characters in length. To enter a name or password, move the highlight bar to the appropriate line and column, and type in the alphanumeric designation. Move the highlight bar to CONFIRM, and press Enter to confirm the changes.

To designate the access privileges that a particular user is to be allowed, move the highlight bar to that column of the menu on your line and, using the space bar, toggle between the following options; FULL ACCESS, MAINTENANCE, PROVISION, PROVISION+MAINTENANCE, NO ACCESS, and DISPLAY ONLY.

NOTE: At least one user must have full access to the unit.

 

Table 4-8 Login Configuration Options

 

 

Parameter

Description

Full Access Class

View any menu and perform any function. It is the only access class

 

where you are allowed to view the LOGIN CONFIGURATION MENU

 

and assign names, passwords, and access levels to users. This user is

 

also the only one who can change the SNMP Configuration, Download

 

Software, or Delete Entire Node Configuration

 

 

Maintenance

Clears the event history log, clear statistics, and initiate tests.

 

 

Provision

Allows you to configure the DL3800E.

 

 

Provision + Maintenance

Allows you to perform all functions allowed Provision and Maintenance

 

access described above.

 

 

Display Only

Allows you access to view-only screens. You are not allowed to make any

 

changes or initiate tests.

 

 

No Access

Not allowed to access the menu screens.

 

 

Terminal Automatic

Sets the Automatic Logout feature of the DL3800E. The unit will logout if

Logout

no activity is detected for the amount of time configured.

 

To change configuration, highlight the item and, using the Space Bar,

 

toggle until your selection appears. Move the highlight to Confirm, and

 

press Enter to confirm the change. The default is Off, with15 sec.,30

 

sec.,1min., three min., five min., 10 min. and 30 min. also configurable.

 

 

4-38

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

NOTE: If the you try to access a screen or perform a function beyond your allowed access level, the following message appears: Access

denied - your account does not have this PRIVILEGE.

SNMP Configuration

Through the SNMP CONFIGURATION MENU, you configure the Network Manager (NMS) port on the rear panel of the DL3800E, setting various addresses and configurable items required for operation with an SNMP Network Manager. The DL3800E unit utilizes SLIP protocol over the RS232 port to communicate with the SNMP management station.

To access the SNMP CONFIGURATION MENU, move the highlight bar to SNMP CONFIGURATION in the CONFIGURATION MENU, and press

Enter.

Figure 4-19 is an example of the SNMP CONFIGURATION MENU, and Table 4-9 describes the SNMP parameters:

DIGITAL LINK DL3800E SR 3.01.0B NODE

1:123

08/27/00 00:55:51 MJ

SELECTED

DEVICE ADDRESS:

1.00.000 NAME:123

 

SNMP CONFIGURATION

Exit

Confirm

 

 

 

NMS SERIAL PORT (SLIP)

 

 

 

 

UNIT IP

ADDRESS:

172.019.001.038

UNIT

IP SUBNET MASK:255.255.255.000

TRAP IP

ADDRESS:

0.000.000.000

Port:

Slip

 

 

 

0.000.000.000

Port:

Slip

 

 

 

0.000.000.000

Port:

Slip

 

REMOTE IP

ADDRESS: 0.000.000.000

SLIP TRAP

DELAY: 0seconds

REMOTE TRAP DELAY: 0 seconds

READ COMMUNITY

STRING:

public

WRITE COMMUNITY STRING:

public

TRAP COMMUNITY

STRING

public

SNMP BAUD

RATE:

9600

 

 

SNMP #BITS AND

PARITY:

8 bits, No parity

SNMP STOP

BITS:

2 bits

 

 

Figure 4-19 SNMP CONFIGURATION MENU

Terminal Interface

4-39

4

 

Table 4-9 SNMP Configuration Options

 

 

Option

Description/Action

 

 

Unit IP Address

The Unit IP Address is a 32-bit quantity which uniquely identifies the node in

 

the IP network. This address is used by the SNMP manager to access

 

information from the node.

 

To set or change the Unit IP Address, move the highlight bar to Unit IP

 

Address, and enter a 32-bit quantity. Press Enter when finished.

 

 

Unit IP Subnet Mask

The Unit IP Subnet Mask is a 32-bit quantity that identifies which bits in the IP

 

address identify the physical network.

 

To set or change the Unit Subnet Mask, move the highlight bar to Unit

 

Subnet Mask, and enter a 32-bit quantity. Press Enter when finished.

 

 

Trap IP Address

The Trap IP Address is a 32-bit quantity that identifies the SNMP manager, the

 

address to which the node sends any event messages.

 

You can specify up to three different IP addresses.

 

To set or change the Trap IP Address, move the highlight bar to Trap IP

 

Address, and enter a 32-bit quantity. Press Enter when finished.

 

 

Read Community String

This alphanumeric identifier, up to 31 characters in length, identifies a portion

 

of the SNMP network that is able to read messages from the node.

 

To set or change the Read Community String, move the highlight bar to Read

 

Community String and enter an alphanumeric identifier, up to 31

 

characters in length. Press Enter when finished.

 

 

Write Community String

This alphanumerical identifier, up to 31 characters in length, identifies a

 

portion of the SNMP network that can write messages to the node.

 

To set or change the Write Community String, move the highlight bar to Write

 

Community String, and enter an alphanumeric identifier, up to 31

 

characters in length. Press Enter when finished.

 

 

Trap Community String

This alphanumeric identifier, up to 31 characters in length, identifies a portion

 

of the SNMP network that is able to receive event messages from the node.

 

To set or change the Trap Community String, move the highlight bar to Trap

 

Community String, and enter an alphanumerical identifier. Press Enter

 

when finished.

 

 

4-40

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

 

Table 4-9 SNMP Configuration Options (Continued)

 

 

Option

Description/Action

 

 

SNMP Baud Rate

This feature selects the SNMP port’s baud rate.

 

To set or change the SNMP port baud rate, move the highlight bar to SNMP

 

Baud Rate, and press the Space Bar to toggle between the options until

 

the desired speed appears. The options are: 300; 600; 1200; 2400; 4800;

 

9600; 19,200 and 38,400. (Default - 9600)

 

If the SNMP Baud rate is changed, it is necessary to change the baud rate at

 

the connection to the SNMP manager before continuing. The same is true for

 

modifying the parity and/or number of stop bits.

 

 

SNMP Bits & Parity

This feature selects the SNMP port’s parity.

 

To set or change the SNMP Parity, move the highlight bar to SNMP Bits &

 

Parity, and press the Space Bar to toggle between the options until the

 

desired parity appears. The options are: None, Odd, and Even. Bits is always

 

set at 8. (Default - None)

 

 

SNMP Stop Bits

This feature selects the SNMP manager stop bit requirement.

 

Move the highlight bar to SNMP Stop Bits, and press the Space Bar to

 

toggle between the options 1,1.5, or 2. (Default-2)

 

 

To update the SNMP database with all the changes made, move the highlight bar to CONFIRM, and press the Enter key. Changes can be confirmed after each change or after all changes have been made.

IP Bridging to a Remote Unit

The IMUX unit now supports bridging of selected IP packets to the remote IMUX unit. The bridged packets are transported between the remote unit and the local NMS/SLIP port using the proprietary Embedded Data Link. In order to minimize bandwidth constraints, only the following protocols are bridged:

• SNMP

• Ping (ICMP Echo Request/Echo Response, a subset of full ICMP)

• TFTP

• SNMP Traps from remote

The illustration below shows the SNMP Configuration from the SYSTEM UTILITIES MENU.

The IMUX unit has a configurable “Remote IP Address” parameter used to identify the remote unit. The remote IMUX’s “Unit IP Address” parameter should be set to the same value, although this is not strictly necessary.

Terminal Interface

4-41

4

However, it is important to note that the remote IMUX’s “Unit IP Address” parameter must be set to some non-zero value in order to respond to the bridged IP packets.

SNMP trap packets from the remote IMUX unit are modified upon receipt. The source IP address field in the trap packet is modified to the “Remote IP Address” parameter; then the packet is forwarded out the NMS/SLIP link.

In-Band SNMP to Remote

This feature allows you to manage both local and remote units with a single NMS station attached to only one of the two units.

If the unit receives an SNMP packet from its SLIP port with the IP address of the remote unit, the local unit forwards the packet to the remote unit over the Embedded Data Link.

If the unit receives an SNMP packet that does not match its IP address or the IP address of the remote unit, the packet is discarded.

The unit responds to SNMP packets with its IP address from an NMS with any IP address.

The unit transmits SNMP responses from either its SLIP port or to the remote unit depending on the direction from which the packet came.

The IP address of the remote unit must be set to a non-zero value for this feature to work. This field is shown in Figure 4-19 on page 4-39.

Save Configuration

This option allows you to manually backup the database to EEPROM at any time To SAVE CONFIGURATION and backup the database to EEPROM, highlight SAVE CONFIGURATION in the SYSTEM UTILITIES MENU, and press the Enter key.

4-42

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

Tests

The TESTS MENU allows you to initiate or stop four types of loopbacks for each individual network port: DTE/NETWORK LOOPBACK for the DTE, PAYLOAD LOOPBACK, LINE LOOPBACK, and LOCAL LOOPBACK. For troubleshooting suggestions see “Troubleshooting the DL3800E” on page 6- 3.

To access the TESTS MENU, move the highlight bar to TESTS in the

DL3800E unit Main Menu, and press Enter.

Figure 4-20 is an example of the TESTS MENU. The individual loopbacks and operation of the menu are described below in the text following the menu.

Major

01/01/90

04:58:17

Unit:

0

NET : 2

(114)

 

Network 15 Minute UAS

Major Threshold Exceeded

 

Major

01/01/90

04:58:17

Unit:

0

NET : 1

(114)

 

Network 15 Minute UAS

Major Threshold Exceeded

 

DIGITAL LINK DL3800E

SR

2.00.00 NODE 7: 01/01/90 05:55:07 MJ

SELECTED DEVICE

ADDRESS:

7.00.000

 

NAME:

 

 

DTE AND NETWORK

TESTS

 

Exit Confirm

 

 

DTE TESTS:

 

 

 

 

 

 

 

DTE/NETWORK LOOPBACK:

 

Off

 

 

 

 

NETWORK TESTS:

 

 

 

 

 

 

 

PORT#

 

PAYLOAD LOOPBACK

 

LINE LOOPBACK

LOCAL LOOPBACK

1Off

2Off

3Off

4Off

5Off

6Off

7Off

8Off

Figure 4-20 TESTS MENU

Terminal Interface

4-43

4

To initiate a test, use the CURSOR keys to move the highlight bar to

DTE/Network Loopback or a Payload or Line Loopback on a selected port. Use the space bar to toggle between OFF and ON until ON appears in the display. When that selection appears in the display, move the highlight bar to CONFIRM, and press the Enter key. To cancel a test that is running, move the highlight bar to DTE/Network Loopback. Use the space bar to toggle between the options until OFF appears in the display. Move the highlight bar to CONFIRM, and press the Enter key.

DTE/Network Loopback

The DTE/NETWORK LOOPBACK is a bi-directional loopback that loops the received DTE signal back to the DTE and the signal from the E1 processor back towards the E1 network. This loopback is used to verify the operation of the DTE and associated cabling.

Payload Loopback

The payload loopback is used to verify proper E1 network operation of the DL3800E unit and the E1 network. The Payload Loopback loops the payload data received from the E1 network back towards the network. The data is regenerated, and a new framing pattern is inserted prior to being looped back. In this way the E1 framing of the unit and network can be verified.

Line Loopback

The line loopback is used to verify the operation of the E1 network. The line loopback loops the data received from the E1 network back towards the network. The data is regenerated prior to being looped back; however, no additional processing of the data is done by the DL3800E. This minimizes the impact of the DL3800E unit during this test so that network problems can be isolated.

Local Loopback

The local loopback is used to verify the operation of the DTE and connections. The local loopback loops the data received from the DTE back towards the DTE at the network interface.

4-44

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

Figure 4-21 Loopbacks within the DL3800E unit

Remote Loopback Detection

The DL3800E has the capability of detecting loopbacks which are set on the remote 3800E or somewhere in the network line. When a remote loopback is detected, the 3800E removes the port from the DTE data bundle and reduces the DTE data rate, sets the port LED to yellow and changes the port status in the Alarms & Status menu to read “Remote Lpbk”. It also generates an SNMP alarm: enRemoteLpAlarm.

When the remote loopback is cleared, the port is restored to DTE bundle and LED is restored to green. Port loopback status is cleared and the SNMP alarm (enRemoteLpAlarm) is idled.

This loopback detection has some limitations. It will not work when a Unit Number of zero is set (factory default). Also, false remote loopback conditions will be reported on all ports if the remote Unit Number is the same as the local Unit Number

NOTE: Remote loopback detection is disabled when the net is configured for “Install/Test Only.”

Terminal Interface

4-45

4

.

WARNING: The E1 Loopback tests will result in removal of the E1 port from service unless the port is configured for “Install/Test Only” mode. In this mode, a port in loopback will remain in service, which will disrupt traffic.

Manual Network Restoration

The DL3800E’s E1 ports are normally set to auto restore. However, you may choose to individually restore E1 networks after they fail, through the MANUAL NETWORK RESTORATION MENU.

NOTE: Manual restore will only work under the following conditions:

1. If the port has previously been set to “Use w/manual restore,” in the Network Configuration screen.

2.If the E1 is not in alarm. If the E1 is in alarm, you must first clear the alarm statistics in the STATISTICS MENU. To learn how to clear alarm statistics, see “Statistics” on page 4-11.

To access the MANUAL NETWORK RESTORATION MENU (Figure 4-22 on page 4-47) move the highlight bar to Manual Network Restoration in the CONFIGURATION MENU, and press Enter.

4-46

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

4

Major

01/01/90 04:58:17

Unit:

0

NET :

2

(114)

Network

15

Minute UAS

Major Threshold Exceeded

Major

01/01/90 04:58:17

Unit:

0

NET :

1

(114)

Network

15

Minute UAS

Major Threshold

Exceeded

DIGITAL LINK DL3800E

SR

2.00.00 NODE 7:

01/01/90 05:55:07 MJ

SELECTED

DEVICE ADDRESS:

 

7.00.000

NAME:

You must

confirm to save

changes.

 

MANUAL NETWORK RESTORATION

Exit

Confirm

PORT# RESTORE

1No Change

2No Change

3No Change

4No Change

5No Change

6No Change

7No Change

8No Change

Figure 4-22 MANUAL NETWORK RESTORATION MENU

To manually restore an E1 port (network), use the UP and DOWN ARROW keys to highlight the line item of the corresponding network port number. Toggle from No Change to Restore using the Space Bar. Select Confirm, and press the Enter key to save the changes.

Logout

This allows you to manually log off the unit, instead of waiting for the provisioned automatic logoff time for the unit to log off automatically. Highlighting LOGOUT and pressing Enter logs you off the system.

Terminal Interface

4-47

4

4-48

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

 

 

5

Front Panel Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GENERAL

The front panel (Figure 5-1) features a 16 character vacuum fluorescent display and four buttons that help you to move through the various menus to configure the unit, perform tests, and obtain vital performance data. The front panel also features six LEDs for the DTE port, one for each of the E1 networks, three for the DL3800E unit status and one for Network Test.

Figure 5-1 DL3800E Front Panel

DISPLAY OVERVIEW

The DL3800E unit has a 16-character fluorescent front panel display. The left most character often provides an indication when the displayed message relates to a remote unit. A remote unit message is indicated by the character R followed by a comma (R,). When displaying a message relating to the local unit, this character position is a blank.

BUTTON OVERVIEW

The DL3800E unit has four front panel buttons. The unit generally responds to a button when it is pressed. Pressing and holding a button results in a repeating action after one-half second.

 

EXIT

 

 

 

END TEST

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5-1

5

The front panel buttons are also used for Alarm Cutout. When an alarm condition occurs, the External Alarm Output contacts close. This typically actuates external alarm indicators such as bells or alarm lights. Pressing any of the four front panel buttons clears the condition, and turns off the external bell or light.

Exit Button

The EXIT button is used to cancel operations or exit to a higher level menu loop from a submenu loop. This button doubles as a left arrow button in a few situations.

UP ARROW and DOWN ARROW Buttons

The UP ARROW button is used to move to the previous menu item or configuration option.

The DOWN ARROW button is used to move to the next menu item or configuration option.

Pressing both the UP ARROW and the DOWN ARROW buttons simultaneously (the End Test combination), terminates all active tests on the local unit and brings the front panel menu to the TEST MENU showing the test that has just been terminated. If no tests are active, pressing the End Test combination has no effect.

Enter Button

The ENTER button is used to select a submenu loop or configuration option. This button doubles as the right arrow button in a few situations.

5-2

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

5

Front Panel LEDs

 

Table 5-1 Front Panel LEDs

 

 

Indication

Description

 

 

Test

Test In Progress LED

 

 

Off

No tests are in progress.

 

 

Solid Red

A test condition exists.

 

 

Data Port LEDs

 

 

 

TD

Data DTE Activity LED. Represents pulses to DTE.

 

 

Green

Pulses are being detected.

 

 

Off

No pulses are being detected.

 

 

RD

Date DTE Activity LED. Represents pulses from DTE.

 

 

Green

Pulses are being detected.

 

 

Off

No Pulses are being detected.

 

 

RTS/TA

Request to send indicator, from DTE or TA (HSSI)

 

 

Yellow

RTS from DTE is active.

 

 

Off

RTS has been removed.

 

 

CTS/CA

Clear To Send indicator, to DTE or CA (HSSI)

 

 

Yellow

CTS to DTE is active.

 

 

Off

CTS has been removed, indicating that the DL3800E unit is not

 

sending valid data.

 

 

DTR

Data Terminal Ready Indicator (N/A for HSSI)

 

 

Yellow

DTR from DTE is active.

 

 

Off

DTR from DTE is inactive.

 

 

Test

Indicates the port is in test mode.

NOTE: The Test LED is off only when the port is not allocated bandwidth. It lights red when there is a HW DTE Loopback or DTE/NET Loopback in progress. It is connected to the TEST lead going from the DL3800E unit to the DTE, so both the LED and the lead carry the same data

Network LEDs (T-1 through T-8)

Red

Network is in Red Alarm.

 

 

 

 

Green

Network is Active and running.

 

 

 

 

Flashing Green

The network is ready, but it is not part of the bundle to the DTE.

 

 

 

 

 

 

 

Front Panel Interface

5-3

5

 

Table 5-1 Front Panel LEDs (Continued)

 

 

Indication

Description

 

 

Flashing Green

Network crossover is detected.(Check Front panel Display Menu)

 

 

Yellow

Network is in Loopback.

 

 

Flashing Yellow

Receiving yellow/AIS alarm.

 

 

Off

Network is inactive.

 

 

Unit LEDs:

Display the status of the DL3800E, and whether the condition is a

Status

Major or Minor alarm.

Maj

 

Min

When a port’s Active/Restore mode is set to Never Use and its

 

alarm mode is set to Mask, then the port LED will be turned off.

 

 

Access Levels And Protected Mode

Front panel access can be limited by placing the DL3800E unit in the Protected Mode. In this mode, you can use the Front Panel User Interface only to monitor the status of the unit and its Error Counters, and view its configuration. The following operations cannot be performed through the Front Panel User Interface when the unit is in Protect Mode:

Clearing the Error Counters.

Changing the unit configuration.

Starting or terminating diagnostic tests.

The unit can be put into and out of Protected Mode through the Terminal User Interface, but not from the Front Panel User Interface. To place the unit in protect mode, toggle the Front Panel field to Off, in the UNIT CONFIGURATION MENU. Refer to “Unit Configuration” on page 4-17.

When a user needs to take a unit out of Protected Mode but a terminal is not available, the following procedure can be used:

1.Turn off the power to the unit.

2.Press EXIT and the DOWN ARROW buttons at the same time.

3.Turn the power to the unit back on.

NOTE: The unit automatically performs a self test every time the unit is powered up.

5-4

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

5

This procedure takes the unit out of the Protected Mode (and clears any password that may have been programmed) and sets all parameters to their default settings. To allow you to perform this procedure when the unit is in protected mode, the Protected Mode is ignored in the first sixty seconds after powering up. When in Protected Mode, the TEST MENU does not appear in the Main Menu.

POWER UP AND RESET

During power up initialization, the unit performs self test and displays a self-test message. Payload service resumes at the completion of Self Test. When the Self Test message is removed, the default message DL3800E Inverse Multiplexer appears on the display.

TOP MENU

NOTE: The menu system in the DL3800E unit is consistent with other Quick Eagle Networks products. Therefore, a user familiar with an existing product can easily operate the DL3800E. An example of a menu tree is shown below:

The TOP MENU loop consists of five items: (1) DL3800E Inverse Multiplexer designation, (2) Select Remote/Local, (3) MONITOR MENU,

(4) TEST MENU, and (5) CONFIGURATION MENU.

Front Panel Interface

5-5

5

DL3800 Inverse Mux

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENTER

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SELECT REMOTE

 

 

 

 

 

 

 

Select Remote/Local

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DISPLAY

 

 

 

 

 

 

 

 

Display Menu

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEST

 

 

 

 

 

 

 

 

Test Menu

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONFIGURATION

 

 

 

 

 

 

 

Configuration Menu

 

 

 

 

 

 

 

 

 

 

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This menu loop may also be entered at any time by pressing the Exit button to go up the menu hierarchy until reaching the TOP MENU. Continuing to press Exit while in the TOP MENU brings the unit to the default display DL3800E INVERSE MULTIPLEXER scrolling across the screen. Pressing the UP and DOWN ARROW buttons get you into the menu loop. A menu is selected by pressing Enter when the menu name appears on the display.

The DISPLAY MENU is used for displaying Node Status, DTE Status, and Status of each installed E1 network. The 24-hour line data is only available with the terminal interface or through the Network Manager. The data in the DISPLAY MENU is a subset of the parameters that are available on the ALARM AND STATUS MENU through the terminal interface, or the Network Manager.

The TEST MENU is used for DTE and Network loopbacks. The DL3800E unit does not allow performing tests on the remote unit through the front panel user interface. This feature is only available with the terminal interface.

5-6

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

5

The Configuration MENU is used to view and change the unit's configuration parameters, date and time, network interface parameters, and DTE interface parameters.

Both the DISPLAY and CONFIGURATION MENUS are also able to access the remote unit. Remote monitoring and configuration are only available when there is an EML (Embedded Maintenance Link) channel to the remote unit. When you request status or configuration information from the remote unit, the local unit sends a request to the remote unit over ADL, and waits for a reply. While waiting for the reply, the local unit displays the message:

PLEASE WAIT...

On the front panel. If there is no reply from the remote unit within 10 seconds, the display of the local unit will show:

REMOTE NOT AVAILABLE

Otherwise, the information reported by the remote unit will be displayed.

SELECT REMOTE/SELECT LOCAL

Pressing the DOWN ARROW cursor button when the default message is in the display brings the message SELECT REMOTE or R, SELECT LOCAL to the display. This allows you to log onto either the local or remote DL3800E.

When logged onto the local unit it displays SELECT REMOTE. When logged onto the remote unit, the display will read R,SELECT LOCAL. To change the DL3800E unit being monitored and controlled, press Enter. The message in the display blinks. Press Enter once again to change from SELECT REMOTE to R,SELECT LOCAL or visa versa.

NOTE: When logged onto the remote unit, an R, will appear as the first two characters in the display For example: R,NET1 STATISTICS

DISPLAY MENU

The DISPLAY MENU is used for displaying Node status, DTE status and the status of each installed E1 line. It is also used to clear the error counters (Clearing the error counters can only be done when the DL3800E unit is not in the Protected Mode).

Front Panel Interface

5-7

5

DISPLAY MENU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENTER

Use Arrow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NODE STATUS

 

EXIT

keys to view

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

status.

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENTER

Use Arrow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTE STATUS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

keys to view

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

status.

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENTER

Use Arrow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NET 1 STATUS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

keys to view

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

status.

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENTER

Use Arrow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NET 2 STATUS

 

 

EXIT

keys to view

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

status.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENTER

Use Arrow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NET 1.STATISTICS

 

 

 

EXIT

keys to view

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

statistics.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENTER

Use Arrow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NET 2.STATISTICS

 

 

 

 

keys to view

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXIT

statistics.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RETURN TO MAIN MENU

DISPLAY ITEM

NOTE: Only those E1 circuits physically installed (from two to eight) will have status lines in this menu.

Node (Common Equipment) Status

This display shows the status of the unit. NODE STATUS is accessed from the DISPLAY MENU by pressing Enter when NODE STATUS appears in the display.

If one of more errors are detected, one or more of the following messages will appear. Use the UP and DOWN ARROW buttons to view the following messages, see Table 5-1 on page 5-9 for a list of those Common Equipment Alarm and Status items that could appear in this menu.

5-8

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

5

DTE Status

The next display shows the status of the DTE data port. The menu is accessed by pressing Enter when DTE STATUS appears in the display.

If errors are detected, one or more of the following messages will appear. Use the down and UP ARROW buttons to view further messages.

See Table 4-2 on page 4-5 for a list of those Common Equipment Alarm and Status items that could appear in this menu.

NET (1-8) Status

The next eight displays show the status of the E1 Networks (NET 1 STATUS through NET 8 STATUS if all are installed). Use the UP and DOWN ARROW buttons to select the E1 Network to be monitored and press Enter. Use the UP and DOWN ARROW buttons to view further status items relating to the same E1 circuit.

See Table 4-2 on page 4-5 for a list of those Common Equipment Alarm and Status items that could appear.

NET (1-8) Statistics

The menu provides you with the various performance statistics of the individual E1 circuits. These performance statistics are listed and defined in Table 5-3. To view the statistics of a particular E1 circuit, press Enter when the display reads NET N.STATISTICS, where N is the number of the desired E1 network port.

The following table lists and explains the information that can be viewed from the NET STATISTICS MENU, for each performance statistic:

 

Table 5-2 NET STATISTICS MENU Information Display

 

 

Front Panel Display

Explanation

 

 

NET N XXX

XXX = the performance statistic.

 

N = the E1 network port (1-8).

 

 

SEC YYY VALID. Z

YYY = the number of seconds into the current interval.

 

Z = the number of valid 15 minute intervals since the error counters were reset

 

(0-96).

 

 

CUR. X

X = the error count within a statistics period.

 

 

TOTL. X

X = the number of errors in the current interval.

 

 

Front Panel Interface

5-9

5

 

Pressing the DOWN ARROW from any of these displays will step you

 

through the last 96 15-minute intervals while displaying the number of

 

errors in each of the interval. From the Net STATISTICS MENU, press

 

Enter. When you see Net N CV, press Enter again. The first display will

 

read SEC. 455 VALID.8, showing the number of seconds in the current

 

interval, and the number of valid 15 minute intervals since the error

 

counters were last reset.

 

Pressing the DOWN ARROW button from this point in the menu will show

 

the number of Code Violations in the current interval (CUR 4). Pressing the

 

DOWN ARROW will display the total number of errors since the registers

 

were last reset (TOTL. 8). Pressing the DOWN ARROW from here will

 

cycle you through the last 96 fifteen-minute intervals (or however many

 

intervals exist since the counters were last reset), displaying the number of

 

Code Violations in each interval, starting with the most recent, i.e., 1 = 0.

 

The NET STATISTICS items are listed in Table 5-3.

 

Table 5-3 NET Statistics Items

 

 

Parameter

Definition

 

 

EFS

Error Free Seconds (EFS) is calculated whenever ESR is calculated, and is the simple

 

percentage complement of ESR: EFS = 100.0 - ESR. When there have been UAS in

 

the statistics history for the past 24 hours, then EFS is set at 100%.

 

 

ESR

Errored Second Ratio (ESR) is the ratio of ES to total seconds in available time during

 

a fixed measurement interval. The fixed interval is the last 24 hours before the current

 

15 minute interval. When there have been UAS in the statistics history for the past 24

 

hours, then ESR is set at 0%.

 

 

SESR

Severely Errored Second Ration (SESR) is the ratio of SES to total seconds in

 

available time during a fixed measurement interval. The fixed interval to be used is

 

the last 24 hours before the current 15 minute interval. When there have been UAS

 

in the statistics history for the past 24 hours, then SESR is set at 0%.

 

 

BBER

Background Block Error Ratio (BBER) is the ratio of errored blocks to total blocks

 

during a fixed measurement interval, excluding all blocks during SES and unavailable

 

time. The fixed interval is equal to the last 24 hours before the current 15 minute

 

interval.

 

 

BPV

This display provides the number of Bipolar Violations (BPVs) that have occurred

 

during the accumulation period. A total of 15430 BPVs in a 10 second sliding

 

window (approximately 10-3) will create a Major Alarm and 916 BPVs in a 600

 

second sliding window (approximately 10-6) will create a Minor Alarm.

 

 

FE

A Frame Error (FE) is declared when two out of four consecutive framing bits are in

 

error. Typically, an FE indication will be accompanied by a significant number of

 

payload data bit errors. This display provides the number of FEs that have occurred

 

in the accumulation period.

 

 

5-10

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001

 

5

 

 

 

 

 

 

 

Table 5-3 NET Statistics Items (Continued)

 

 

Parameter

Definition

 

 

EB/CV

An Errored Block (EB) is a block in which one or more bits are in error. The EB if

 

therefore equivalent to the Code Violation (CV) count calculated and displayed in the

 

previous versions of the DL3800E. This count allows a user to monitor the rate of EB

 

faults on a line that is unavailable.

 

EBs are counted in the unavailable state; ES, SES, and BBE are not counted in the

 

unavailable state.

 

 

ES

An Errored Second (ES) is a one second period with one or more errored blocks

 

(such as one or more CRC4 errors) or an Out Of Frame (OOF). This display provides

 

the number of ESs that have occurred in the accumulation period. ESs are not

 

accumulated during UAS.

 

 

SES

Severely Errored Seconds (SES) is a one-second period which contains 30% or more

 

errored blocks or at least one severely disturbed period (SDP). An SDP is present if

 

either a LOS, AIAS, or LOF occurs.

 

Since there are 1000 blocks per second, an SES is a one second period which

 

contains either a combination of 300 or more CRC4 errors, an OOF, or at least one

 

of the following: LOS, AIS, or LOF. This requirement is a slight change from the prior

 

DL3800E unit SES definition, which required 320 or more CRC4 errors or LOS, AIS,

 

or LOF. SESs are not accumulated during UAS.

 

 

BBE

A Background Block Error (BBE) is an errored block not occurring as part of an SES.

 

A BBE is calculated and displayed as a raw count of non-SES EBs. The count is

 

updated at the end of every measurement second excepting any second that is an

 

SES. The updated count is discarded for all UAS.

 

 

UAS

Unavailable Seconds. This display provides the number of UAS that have occurred in

 

the accumulation period. At the onset of 10 consecutive SES events, a period of

 

unavailable seconds begins. These 10 seconds are part of the unavailable seconds

 

count. At the onset of 10 consecutive non-SES events, a new period of available time

 

begins. These 10 seconds are part of available time.

 

UAS only occurs at the onset of 10 SES.

 

ES, SES, and BBE are not counted during unavailable time. Rate parameters ESR,

 

SESR, and BBER are the ratio of the fault-seconds count to the total seconds in

 

available time.

 

 

 

Front Panel Interface

5-11

5

TEST MENU

The TEST MENU is used to activate network loopbacks and DTE loopbacks. The TEST MENU is only available when the unit is not in the Protected Mode.Tests are performed by selecting a test from the TEST MENU or one of the TEST submenus, and pressing Enter. To end all tests, press the END TEST button combination (UP and DOWN ARROW buttons simultaneously). When a test is selected that could apply to an E1 port, you are asked to specify to which fraction the test should apply. Only the local unit can be tested from the front panel. Testing the remote unit is limited to placing it in the Network Loopback Test.

The TEST MENU is broken down into two types of submenus: DTE TESTS (one menu) and NETWORK TESTS (one for each network interface installed). Through these submenus, you initiate and stop various tests and loopbacks.

The TEST MENU is accessed from the Main Menu by pressing Enter when TEST appears in the display. Pressing the down or UP ARROW button toggles through the three submenus. The submenus are accessed by pressing Enter when the appropriate menu appears in the display.

5-12

DL3800E Inverse Multiplexer User’s Guide — July 9, 2001