ZyXEL Communications ALC1248G User Manual

ALC1248G

ADSL2/2+ Line Card

User’s Guide

Version 3.90 3/2008 Edition 1

www.zyxel.com

About This User's Guide

Intended Audience

This manual is intended for users of the ALC1248G ADSL2/2+ Line Card. It describes detailed information about the cards’ features and hardware.

Document Conventions

Warnings and Notes

These are how warnings and notes are shown in this User’s Guide.

1 Warnings tell you about things that could harm you or your device.

" Notes tell you other important information (for example, other things you may

need to configure or helpful tips) or recommendations.

Syntax Conventions

• The ALC1248G may be referred to as the “ALC”, the “device” or the “system” in this User’s Guide.

• The “ALC1248G”, the “ALC” and the “line card” refer to the ALC1248G-51 for ADSL over POTS (Annex A). They also refer to the ALC1248G-53 for ADSL over ISDN (Annex B). Differentiation is made where needed.

• “IES” refers to the IES-5000 or IES-6000 system, including the main chassis and all associated cards.

• “MSC” refers to the MSC1000G or MSC1024G management switch card.

• Product labels, screen names, field labels and field choices are all in bold font.

• A key stroke is denoted by square brackets and uppercase text, for example, [ENTER] means the “enter” or “return” key on your keyboard.

• “Enter” means for you to type one or more characters and then press the [ENTER] key. “Select” or “choose” means for you to use one of the predefined choices.

• A right angle bracket ( > ) within a screen name denotes a mouse click. For example, Maintenance > Log > Log Setting means you first click Maintenance in the navigation panel, then the Log sub menu and finally the Log Setting tab to get to that screen.

• Units of measurement may denote the “metric” value or the “scientific” value. For example, “k” for kilo may denote “1000” or “1024”, “M” for mega may denote “1000000” or “1048576” and so on.

ALC1248G User’s Guide

Safety Warnings

1 For your safety, be sure to read and follow all warning notices and instructions.

• Do NOT use this product near water, for example, in a wet basement or near a swimming pool.

• Do NOT expose your device to dampness, dust or corrosive liquids.

• Do NOT store things on the device.

• Do NOT install, use, or service this device during a thunderstorm. There is a remote risk of electric shock from lightning.

• Connect ONLY suitable accessories to the device.

• Do NOT open the device or unit. Opening or removing covers can expose you to dangerous high voltage points or other risks. ONLY qualified service personnel should service or disassemble this device. Please contact your vendor for further information.

• Make sure to connect the cables to the correct ports.

• Place connecting cables carefully so that no one will step on them or stumble over them.

• Always disconnect all cables from this device before servicing or disassembling.

• Do not use the device outside, and make sure all the connections are indoors. There is a remote risk of electric shock from lightning.

• Do NOT obstruct the device ventilation slots, as insufficient airflow may harm your device.

• Warning! To avoid risk of electric shock, remove only one card at a time and do not place fingers or objects inside the chassis. Cover empty slots with slot covers.

This product is recyclable. Dispose of it properly.

ALC1248G User’s Guide

Safety Warnings

ALC1248G User’s Guide

Table of Contents

About This User's Guide ..........................................................................................................3

Document Conventions............................................................................................................4

Safety Warnings.......................................................................................................................5

Table of Contents...................................................................................................................... 7

List of Figures ...........................................................................................................................9

List of Tables...........................................................................................................................11

Chapter 1

Introducing the ALC1248G.....................................................................................................13

1.1 ALC1248G Overview ........................................................................................................... 13

1.2 ADSL Standards Overview .................................................................................................. 13

1.3 Features .............................................................................................................................. 14

1.4 Front Panel ......................................................................................................................... 18

1.5 Ports and LEDs ................................................................................................................... 18

1.5.1 Ports ........................................................................................................................... 18

1.5.2 LEDs ......................................................................................................................... 19

1.6 Default Settings .................................................................................................................. 19

Chapter 2

Product Specifications...........................................................................................................21

2.1 Product Specifications ......................................................................................................... 21

2.2 Firmware Naming Conventions ........................................................................................... 23

2.3 Telco-50 Connector Pin Assignments .................................................................................. 24

2.4 Wire Gauge Specifications ..................................................................................................27

2.5 Console Cable Pin Assignments ......................................................................................... 27

Chapter 3

Troubleshooting......................................................................................................................29

3.1 Power and LEDs .................................................................................................................. 29

3.2 DSL Data Transmission ....................................................................................................... 30

3.3 Local Server ........................................................................................................................ 30

3.4 Data Rate ........................................................................................................................... 31

3.5 Management and Configuration .......................................................................................... 31

3.5.1 Uploading the Default Configuration File via Boot Commands .................................. 32

3.5.2 Uploading the Firmware via Boot Commands ............................................................ 33

ALC1248G User’s Guide

Table of Contents

Appendix A Legal Information ................................................................................................35

Appendix B Customer Support ...............................................................................................39

Index......................................................................................................................................... 45

ALC1248G User’s Guide

List of Figures

Figure 1 Front Panel ............................................................................................................................... 18

Figure 2 ALC Ports 1-24 Telco-50 Connector Pin Assignments ........................................................... 24

Figure 3 ALC Ports 25-48 Telco-50 Connector Pin Assignments .......................................................... 24

Figure 4 IES-5000/5005 Cable Telco-50 Pin Assignments (ALC End) ................................................... 25

Figure 5 IES-5000/5005 Cable Telco-50 Pin Assignments (Splitter Card End) ...................................... 26

Figure 6 IES-6000 Cable Telco-50 Pin Assignments (ALC End) ............................................................ 26

Figure 7 IES-6000 Cable Telco-50 Pin Assignments (Splitter Card End) ............................................... 27

Figure 8 Console Cable Mini RJ-11 Male Connector ............................................................................. 28

Figure 9 Example Xmodem Upload ........................................................................................................ 32

Figure 10 Example Xmodem Upload ...................................................................................................... 34

ALC1248G User’s Guide

List of Figures

ALC1248G User’s Guide

List of Tables

Table 1 ADSL Standards Maximum Transfer Rates .............................................................................. 13

Table 2 Front Panel Ports ...................................................................................................................... 18

Table 3 LED Descriptions ...................................................................................................................... 19

Table 4 Device Specifications ................................................................................................................ 21

Table 5 Supported Standards ................................................................................................................ 22

Table 6 ALC Telco-50 Connector Pin Assignments ............................................................................... 24

Table 7 Wire Gauge Specifications ........................................................................................................ 27

Table 8 Console Cable Connector Pin Assignments ............................................................................. 28

Table 9 SYS LED Troubleshooting ........................................................................................................ 29

Table 10 ALM LED Troubleshooting ...................................................................................................... 30

Table 11 DSL Data Transmission Troubleshooting ................................................................................30

Table 12 Local Server Troubleshooting ................................................................................................. 31

Table 13 SYNC-rate Troubleshooting .................................................................................................... 31

ALC1248G User’s Guide

List of Tables

ALC1248G User’s Guide

CHAPTER 1

Introducing the ALC1248G

This chapter introduces the ADSL2/2+ line card's general features, factory default settings and hardware.

1.1 ALC1248G Overview

The ALC1248G ADSL2/2+ Line Card is perfect for ISPs or large building applications seeking to provide high bandwidth broadband services to subscribers while minimizing costs. One ALC provides ADSL service for 48 subscribers over existing telephone wiring, thus avoiding the cost and hassle of installing new wiring.

The line from the user carries both the ADSL and the voice signals. For each line, the splitter card separates the high frequency ADSL signal from the voice band signal and feeds the ADSL signal to the line card, while the voice band signal is diverted to the central office switch or PBX (Private Branch Exchange).

Use the Telco-50 connector pin assignments in Section 2.3 on page 24 along with the directions and safety warnings in the IES User's Guide to install the line card and make the necessary connections.

See the MSC User’s Guide for detailed information on configuring the line card.

1.2 ADSL Standards Overview

These are the ADSL standards and rates that the ADSL line card supports at the time of writing. The actual transfer rates will vary depending on what the subscriber’s device supports, the line conditions and the connection distance.

Table 1 ADSL Standards Maximum Transfer Rates

STANDARD MAXIMUM DOWNSTREAM MAXIMUM UPSTREAM

G.dmt 8160 Kbps 1024 Kbps

ANSI T1.413 issue 2 8160 Kbps 1024 Kbps

G.lite 1536 Kbps 512 Kbps

ADSL2 12000 Kbps 1200 Kbps

ADSL2 Annex M 12000 Kbps 2400 Kbps

ADSL2+ 25000 Kbps 1200 Kbps

ADSL2+ Annex M 25000 Kbps 2400 Kbps

ALC1248G User’s Guide

Chapter 1 Introducing the ALC1248G

1.3 Features

Here is a partial list of the ALC’s features.

ADSL Compliance

• Multi-Mode ADSL Standard

-DMT T1.413, issue 2

-G.DMT (ITU G.992.1) Annex A

-G.DMT (ITU G.992.1) Annex B

-G.LITE (ITU G.992.2)

• ADSL2

-G.992.3 Annex A

-G.992.3 Annex B

-G.992.3 Annex L

-G.992.3 Annex M

• ADSL2+

-G.992.5 Annex A

-G.992.5 Annex B

-G.992.5 Annex M

IEEE 802.1p Priority

The system uses IEEE 802.1p priority to assign priority levels to individual PVCs. The system can also handle multiple IEEE 802.1p priority queues on a single PVC.

System Monitoring

• System status (link status, rates, statistics counters)

• Temperatures, voltage reports and alarms.

System Error Logging

The ALC's system error log will record error logs locally. These logs may be viewed again after a warm restart.

Configurable Alarms

The system allows you to customize the priority levels of individual alarms and the alarm severity threshold for recording alarms on an individual port(s).

Alarm LED

An ALM (alarm) LED lights when the ALC is overheated, the voltage readings are outside the tolerance levels, a fan fails, or another alarm with a severity level of MAJOR or CRITICAL occurs.

IEEE 802.1Q Tagged VLAN

Your ALC uses the IEEE 802.1Q Tagged VLAN (Virtual Local Area Network), which allows it to deliver tagged/untagged frames to and from its ports. The IES supports up to 4094 individual VLANs.

ALC1248G User’s Guide

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