RAD Data comm ASMi-52 User Manual

5 (3)

Installation and Operation Manual

ASMi-52

2/4-Wire SHDSL Modem

Version 2.5

ASMi-52

Version 2.5

2/4-Wire SHDSL Modem

Installation and Operation Manual

Notice

This manual contains information that is proprietary to RAD Data Communications Ltd. ("RAD"). No part of this publication may be reproduced in any form whatsoever without prior written approval by RAD Data Communications.

Right, title and interest, all information, copyrights, patents, know-how, trade secrets and other intellectual property or other proprietary rights relating to this manual and to the ASMi-52 and any software components contained therein are proprietary products of RAD protected under international copyright law and shall be and remain solely with RAD.

ASMi-52 is a registered trademark of RAD. No right, license, or interest to such trademark is granted hereunder, and you agree that no such right, license, or interest shall be asserted by you with respect to such trademark.

You shall not copy, reverse compile or reverse assemble all or any portion of the Manual or the ASMi-52. You are prohibited from, and shall not, directly or indirectly, develop, market, distribute, license, or sell any product that supports substantially similar functionality as the ASMi-52, based on or derived in any way from the ASMi-52. Your undertaking in this paragraph shall survive the termination of this Agreement.

This Agreement is effective upon your opening of the ASMi-52 package and shall continue until terminated. RAD may terminate this Agreement upon the breach by you of any term hereof. Upon such termination by RAD, you agree to return to RAD the ASMi-52 and all copies and portions thereof.

For further information contact RAD at the address below or contact your local distributor.

 

International Headquarters

North America Headquarters

 

 

RAD Data Communications Ltd.

RAD Data Communications Inc.

 

 

24 Raoul Wallenberg St.

900 Corporate Drive

 

 

Tel Aviv 69719 Israel

Mahwah, NJ 07430 USA

 

 

Tel: 972-3-6458181

Tel: (201) 529-1100, Toll free: 1-800-444-7234

 

 

Fax: 972-3-6498250

Fax: (201) 529-5777

 

 

E-mail: market@rad.com

E-mail: market@radusa.com

 

 

 

 

 

© 1989–2006 RAD Data Communications Ltd.

Publication No. 148-200-04/06

Limited Warranty

RAD warrants to DISTRIBUTOR that the hardware in the ASMi-52 to be delivered hereunder shall be free of defects in material and workmanship under normal use and service for a period of twelve (12) months following the date of shipment to DISTRIBUTOR.

If, during the warranty period, any component part of the equipment becomes defective by reason of material or workmanship, and DISTRIBUTOR immediately notifies RAD of such defect, RAD shall have the option to choose the appropriate corrective action: a) supply a replacement part, or b) request return of equipment to its plant for repair, or c) perform necessary repair at the equipment's location. In the event that RAD requests the return of equipment, each party shall pay one-way shipping costs.

RAD shall be released from all obligations under its warranty in the event that the equipment has been subjected to misuse, neglect, accident, or improper installation, or if repairs or modifications were made by persons other than RAD's own authorized service personnel, unless such repairs by others were made with the written consent of RAD.

The above warranty is in lieu of all other warranties, expressed or implied. There are no warranties which extend beyond the face hereof, including, but not limited to, warranties of merchantability and fitness for a particular purpose, and in no event shall RAD be liable for consequential damages.

RAD shall not be liable to any person for any special or indirect damages, including, but not limited to, lost profits from any cause whatsoever arising from or in any way connected with the manufacture, sale, handling, repair, maintenance or use of the ASMi-52, and in no event shall RAD's liability exceed the purchase price of the ASMi-52.

DISTRIBUTOR shall be responsible to its customers for any and all warranties which it makes relating to ASMi-52 and for ensuring that replacements and other adjustments required in connection with the said warranties are satisfactory.

Software components in the ASMi-52 are provided "as is" and without warranty of any kind. RAD disclaims all warranties including the implied warranties of merchantability and fitness for a particular purpose. RAD shall not be liable for any loss of use, interruption of business or indirect, special, incidental or consequential damages of any kind. In spite of the above RAD shall do its best to provide error-free software products and shall offer free Software updates during the warranty period under this Agreement.

RAD's cumulative liability to you or any other party for any loss or damages resulting from any claims, demands, or actions arising out of or relating to this Agreement and the ASMi-52 shall not exceed the sum paid to RAD for the purchase of the ASMi-52. In no event shall RAD be liable for any indirect, incidental, consequential, special, or exemplary damages or lost profits, even if RAD has been advised of the possibility of such damages.

This Agreement shall be construed and governed in accordance with the laws of the State of Israel.

General Safety Instructions

The following instructions serve as a general guide for the safe installation and operation of telecommunications products. Additional instructions, if applicable, are included inside the manual.

Safety Symbols

This symbol may appear on the equipment or in the text. It indicates potential safety hazards regarding product operation or maintenance to

operator or service personnel.

Warning

Danger of electric shock! Avoid any contact with the marked surface while the product is energized or connected to outdoor telecommunication lines.

.

Protective earth: the marked lug or terminal should be connected to the building protective earth bus.

 

Some products may be equipped with a laser diode. In such cases, a label

 

with the laser class and other warnings as applicable will be attached near

Warning

the optical transmitter. The laser warning symbol may be also attached.

Please observe the following precautions:

 

Before turning on the equipment, make sure that the fiber optic cable is intact and is connected to the transmitter.

Do not attempt to adjust the laser drive current.

Do not use broken or unterminated fiber-optic cables/connectors or look straight at the laser beam.

The use of optical devices with the equipment will increase eye hazard.

Use of controls, adjustments or performing procedures other than those specified herein, may result in hazardous radiation exposure.

ATTENTION: The laser beam may be invisible!

In some cases, the users may insert their own SFP laser transceivers into the product. Users are alerted that RAD cannot be held responsible for any damage that may result if non-compliant transceivers are used. In particular, users are warned to use only agency approved products that comply with the local laser safety regulations for Class 1 laser products.

Always observe standard safety precautions during installation, operation and maintenance of this product. Only qualified and authorized service personnel should carry out adjustment, maintenance or repairs to this product. No installation, adjustment, maintenance or repairs should be performed by either the operator or the user.

Handling Energized Products

General Safety Practices

Do not touch or tamper with the power supply when the power cord is connected. Line voltages may be present inside certain products even when the power switch (if installed) is in the OFF position or a fuse is blown. For DC-powered products, although the voltages levels are usually not hazardous, energy hazards may still exist.

Before working on equipment connected to power lines or telecommunication lines, remove jewelry or any other metallic object that may come into contact with energized parts.

Unless otherwise specified, all products are intended to be grounded during normal use. Grounding is provided by connecting the mains plug to a wall socket with a protective earth terminal. If an earth lug is provided on the product, it should be connected to the protective earth at all times, by a wire with a diameter of 18 AWG or wider. Rack-mounted equipment should be mounted only in earthed racks and cabinets.

Always make the ground connection first and disconnect it last. Do not connect telecommunication cables to ungrounded equipment. Make sure that all other cables are disconnected before disconnecting the ground.

Connection of AC Mains

Make sure that the electrical installation complies with local codes. Always connect the AC plug to a wall socket with a protective ground.

The maximum permissible current capability of the branch distribution circuit that supplies power to the product is 16A. The circuit breaker in the building installation should have high breaking capacity and must operate at short-circuit current exceeding 35A.

Always connect the power cord first to the equipment and then to the wall socket. If a power switch is provided in the equipment, set it to the OFF position. If the power cord cannot be readily disconnected in case of emergency, make sure that a readily accessible circuit breaker or emergency switch is installed in the building installation.

In cases when the power distribution system is IT type, the switch must disconnect both poles simultaneously.

Connection of DC Mains

Unless otherwise specified in the manual, the DC input to the equipment is floating in reference to the ground. Any single pole can be externally grounded.

Due to the high current capability of DC mains systems, care should be taken when connecting the DC supply to avoid short-circuits and fire hazards.

DC units should be installed in a restricted access area, i.e. an area where access is authorized only to qualified service and maintenance personnel.

Make sure that the DC supply is electrically isolated from any AC source and that the installation complies with the local codes.

The maximum permissible current capability of the branch distribution circuit that supplies power to the product is 16A. The circuit breaker in the building installation should have high breaking capacity and must operate at short-circuit current exceeding 35A.

Before connecting the DC supply wires, ensure that power is removed from the DC circuit. Locate the circuit breaker of the panel board that services the equipment and switch it to the OFF position. When connecting the DC supply wires, first connect the ground wire to the corresponding terminal, then the positive pole and last the negative pole. Switch the circuit breaker back to the ON position.

A readily accessible disconnect device that is suitably rated and approved should be incorporated in the building installation.

If the DC mains are floating, the switch must disconnect both poles simultaneously.

Connection of Data and Telecommunications Cables

Data and telecommunication interfaces are classified according to their safety status.

The following table lists the status of several standard interfaces. If the status of a given port differs from the standard one, a notice will be given in the manual.

Ports

Safety Status

 

 

V.11, V.28, V.35, V.36, RS-530,

SELV Safety Extra Low Voltage:

X.21, 10 BaseT, 100 BaseT,

Ports which do not present a safety hazard. Usually

Unbalanced E1, E2, E3, STM, DS-2,

up to 30 VAC or 60 VDC.

DS-3, S-Interface ISDN, Analog voice

 

E&M

 

xDSL (without feeding voltage), Balanced E1, T1, Sub E1/T1

TNV-1 Telecommunication Network Voltage-1:

Ports whose normal operating voltage is within the limits of SELV, on which overvoltages from telecommunications networks are possible.

FXS (Foreign Exchange Subscriber)

TNV-2

Telecommunication Network Voltage-2:

 

 

Ports whose normal operating voltage exceeds the

 

 

limits of SELV (usually up to 120 VDC or telephone

 

 

ringing voltages), on which overvoltages from

 

 

telecommunication networks are not possible. These

 

 

ports are not permitted to be directly connected to

 

 

external telephone and data lines.

 

 

 

FXO (Foreign Exchange Office), xDSL

TNV-3

Telecommunication Network Voltage-3:

(with feeding voltage), U-Interface

 

Ports whose normal operating voltage exceeds the

ISDN

 

 

limits of SELV (usually up to 120 VDC or telephone

 

 

 

 

ringing voltages), on which overvoltages from

 

 

telecommunication networks are possible.

 

 

 

Always connect a given port to a port of the same safety status. If in doubt, seek the assistance of a qualified safety engineer.

Always make sure that the equipment is grounded before connecting telecommunication cables. Do not disconnect the ground connection before disconnecting all telecommunications cables.

Some SELV and non-SELV circuits use the same connectors. Use caution when connecting cables. Extra caution should be exercised during thunderstorms.

When using shielded or coaxial cables, verify that there is a good ground connection at both ends. The earthing and bonding of the ground connections should comply with the local codes.

The telecommunication wiring in the building may be damaged or present a fire hazard in case of contact between exposed external wires and the AC power lines. In order to reduce the risk, there are restrictions on the diameter of wires in the telecom cables, between the equipment and the mating connectors.

Caution

To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cords.

 

Attention

 

 

Pour réduire les risques s’incendie, utiliser seulement des conducteurs de

 

 

télécommunications 26 AWG ou de section supérieure.

 

 

Some ports are suitable for connection to intra-building or non-exposed wiring or cabling only. In such cases, a notice will be given in the installation instructions.

Do not attempt to tamper with any carrier-provided equipment or connection hardware.

Electromagnetic Compatibility (EMC)

The equipment is designed and approved to comply with the electromagnetic regulations of major regulatory bodies. The following instructions may enhance the performance of the equipment and will provide better protection against excessive emission and better immunity against disturbances.

A good earth connection is essential. When installing the equipment in a rack, make sure to remove all traces of paint from the mounting points. Use suitable lock-washers and torque. If an external grounding lug is provided, connect it to the earth bus using braided wire as short as possible.

The equipment is designed to comply with EMC requirements when connecting it with unshielded twisted pair (UTP) cables. However, the use of shielded wires is always recommended, especially for high-rate data. In some cases, when unshielded wires are used, ferrite cores should be installed on certain cables. In such cases, special instructions are provided in the manual.

Disconnect all wires which are not in permanent use, such as cables used for one-time configuration.

The compliance of the equipment with the regulations for conducted emission on the data lines is dependent on the cable quality. The emission is tested for UTP with 80 dB longitudinal conversion loss (LCL).

Unless otherwise specified or described in the manual, TNV-1 and TNV-3 ports provide secondary protection against surges on the data lines. Primary protectors should be provided in the building installation.

The equipment is designed to provide adequate protection against electro-static discharge (ESD). However, it is good working practice to use caution when connecting cables terminated with plastic connectors (without a grounded metal hood, such as flat cables) to sensitive data lines. Before connecting such cables, discharge yourself by touching earth ground or wear an ESD preventive wrist strap.

FCC-15 User Information

This equipment has been tested and found to comply with the limits of the 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 Installation and Operation manual, may cause harmful interference to the 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.

Canadian Emission Requirements

This Class A digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment Regulation.

Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

 

Warning per EN 55022 (CISPR-22)

Warning

 

This is a class A product. In a domestic environment, this product may cause

 

radio interference, in which case the user will be required to take adequate

 

measures.

 

 

 

 

 

Cet appareil est un appareil de Classe A. Dans un environnement résidentiel, cet

Avertissement

appareil peut provoquer des brouillages radioélectriques. Dans ces cas, il peut

 

être demandé à l’utilisateur de prendre les mesures appropriées.

 

 

 

 

 

Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können

Achtung

bei Betrieb dieses Gerätes Rundfunkströrungen auftreten, in welchen Fällen der

 

Benutzer für entsprechende Gegenmaßnahmen verantwortlich ist.

Declaration of Conformity

Manufacturer's Name:

RAD Data Communications Ltd.

Manufacturer's Address:

24 Raoul Wallenberg St.

 

Tel Aviv 69719

 

Israel

declares that the product:

 

Product Name:

ASMi-52

Conforms to the following standard(s) or other normative document(s):

EMC:

EN 55022: 1994

Limits and methods of measurement of radio disturbance

 

 

characteristics of information technology equipment.

 

EN 55024: 1998

Information technology equipment – Immunity characteristics

 

 

– Limits and methods of measurement.

Safety:

EN 60950: 2000

Safety of information technology equipment.

Supplementary Information:

The product herewith complies with the requirements of the EMC Directive 89/336/EEC, the Low Voltage Directive 73/23/EEC and the R&TTE Directive 99/5/EC. The product was tested in a typical configuration.

Tel Aviv, 30th June, 2002

Haim Karshen

VP Quality

European Contact: RAD Data Communications GmbH, Otto-Hahn-Str. 28-30, 85521 Ottobrunn-Riemerling, Germany

Quick Start Guide

Installation of ASMi-52 should be carried out only by an experienced technician. If you are familiar with ASMi-52, use this guide to prepare the units for operation.

1.Installing ASMi-52

Connecting the Interfaces

1.Connect the line to the RJ-45 rear panel connector dedicated SHDSL.

2.Connect the DTE to the appropriate rear panel connector.

3.Connect the control terminal to the rear panel CONTROL connector.

Connecting the Power

Connect the AC or DC power to the ASMi-52 modem.

The unit has no power switch. Operation starts when power is connected to the rear panel power connector.

2.Configuring ASMi-52

Configure ASMi-52 to the required operation mode via an ASCII terminal connected to the rear panel CONTROL port directly or via a modem link.

Connecting the Terminal

To connect the terminal:

1.Connect the terminal cable to the CONTROL connector of ASMi-52.

2.Turn the control terminal on.

3.Configure the terminal to the default communication parameters: 9.6 kbps, one start bit, eight data bits, no parity, one stop bit.

4.Select the full-duplex mode.

5.Turn the terminal echo off.

6.Disable any type of flow control.

You are now ready to start a control session.

ASMi-52 Ver. 2.5

Configuring ASMi-52

1

Quick Start Guide

Installation and Operation Manual

 

 

Configuring the Master Clock

To configure the master clock:

From the System Configuration menu (Main Menu > Configuration > System Configuration > Master Clock), configure the central ASMi-52 clock to external or internal and remote ASMi-52 clock to the receive clock.

Configuring the SHDSL Interface

To configure the SHDSL interface:

From the SHDSL Configuration menu (Main Menu > Configuration > Port Configuration > SHDSL Configuration), configure the following SHDSL parameters:

SHDSL compatibility Power backoff

Snext margin, if line probing is set to adaptive Current margin, if line probing is set to adaptive

Power spectral density (for ASMi-52 with 2-wire line interface and line probing set to fixed)

Line probing

Line type (for 4-wire ASMi-52 units only) Loop attenuation threshold

SNR margin threshold.

Configuring the DTE Interface

ASMi-52 includes a serial, E1, T1, or 10/100BaseT DTE interface configured as a single interface. ASMi-52 can be multiplexed as i.e., E1 + Serial DTE interface, or E1 + 10/100BaseT DTE interface, or Serial + 10/100BaseT DTE interface, in which case each pair of interface has to be configured separately.

Configuring the Serial Interface

To configure the serial interface:

From the DTE Port Configuration (Main Menu > Configuration > Port Configuration > DTE Configuration), select the required data rate.

Configuring the E1 Interface

When configuring an E1 interface, you have to select the modem’s framing mode and assign each E1 timeslot to carry data or idle code.

If in your application, an ASMi-52 unit with an E1 interface operates opposite another ASMi-52 unit, the E1 settings of the remote device are automatically matched to those of the local modem (the Units Identical Setting value is set to YES by default). The Units Identical Setting value of the local modem overrides the management commands of the remote supervisory terminal.

2

Configuring ASMi-52

ASMi-52 Ver. 2.5

Installation and Operation Manual

Quick Start Guide

 

 

To configure E1 parameters:

From the E1 Port Configuration menu (Main Menu > Configuration > Port Configuration > E1 Port Configuration), configure the following E1 parameters:

Framing mode

Timeslot assignment

Note You can configure timeslot 0 to be looped or transparent:

Looped – timeslot 0 is sent back to the E1 interface, when operating opposite remote units with a serial data interface.

Transparent – timeslot 0 is transmitted to the remote modem.

If you operate ASMi-52 with the G732S framing, timeslot 0 is always transparent and timeslot 16 is always connected.

When operating a 2-wire ASMi-52 with E1 interface opposite ASMi-52 with V.35 interface (not in LS mode), assign at least three timeslots, excluding timeslot 0, to carry data.

When operating a 4-wire ASMi-52 with E1 interface opposite ASMi-52 with V.35 interface (not in LS mode), assign at least six timeslots, excluding timeslot 0, to carry data.

Configuring the T1 Interface

To configure the T1 parameters:

From the T1 Port Configuration menu (Main Menu > Configuration > Port Configuration > T1 Port Configuration), configure the following T1 parameters:

Framing mode

Line coding

Receive gain

Interface type

Transmit signal mask

Timeslot assignment

Configuring the 10/100BaseT Interface

To configure 10/100BaseT parameters:

From the LAN Configuration menu (Main Menu > Configuration > System Configuration > LAN Configuration), configure the following LAN parameters:

Bridge static table

Aging timeout

LAN rate

ASMi-52 Ver. 2.5

Configuring ASMi-52

3

Quick Start Guide

Installation and Operation Manual

 

 

4

Configuring ASMi-52

ASMi-52 Ver. 2.5

 

Contents

 

Chapter 1. Introduction

 

1.1

Overview.....................................................................................................................

1-1

 

Versions................................................................................................................................

1-1

 

Applications..........................................................................................................................

1-2

 

Features................................................................................................................................

1-4

1.2

Physical Description...................................................................................................

1-10

1.3

Functional Description...............................................................................................

1-10

1.4

Technical Specifications.............................................................................................

1-12

Chapter 2. Installation and Setup

 

2.1

Introduction.................................................................................................................

2-1

2.2

Site Requirements and Prerequisites ............................................................................

2-1

2.3

Package Contents ........................................................................................................

2-2

2.4

Connecting the Interface Cables ..................................................................................

2-2

 

Connecting the Line..............................................................................................................

2-3

 

Connecting the DTE Interface ...............................................................................................

2-3

2.5

Connecting the Power Cables ......................................................................................

2-3

 

Connecting AC Power...........................................................................................................

2-4

 

Connecting DC Power ..........................................................................................................

2-4

Chapter 3. Operation

 

3.1

Turning On ASMi-52 ...................................................................................................

3-1

3.2

Controls and Indicators................................................................................................

3-1

 

Normal Indications ...............................................................................................................

3-3

3.3

Default Settings............................................................................................................

3-4

3.4

Configuration Alternatives............................................................................................

3-6

 

Managing ASMi-52 via a Terminal Port..................................................................................

3-7

 

Managing ASMi-52 via Ethernet Port .....................................................................................

3-9

 

Managing ASMi-52 via a Dedicated Timeslot.........................................................................

3-9

 

Managing ASMi-52 via Web Browser ..................................................................................

3-10

 

Configuration Menus ..........................................................................................................

3-11

 

Logging Out........................................................................................................................

3-14

3.5

Turning Off ASMi-52 .................................................................................................

3-14

Chapter 4. Configuration

 

4.1

Configuring ASMi-52 for Management.........................................................................

4-1

 

Configuring Management Parameters....................................................................................

4-1

 

Configuring the LAN Port......................................................................................................

4-7

4.2

Configuring ASMi-52 System Parameters ...................................................................

4-12

 

Configuring the Master Clock ..............................................................................................

4-14

 

Configuring Local Card Mode .............................................................................................

4-14

 

Configuring Remote Card Mode..........................................................................................

4-15

 

Configuring Low Speed Operation ......................................................................................

4-15

 

Configuring Control Port Parameters ...................................................................................

4-16

 

Configuring the Terminal Port .............................................................................................

4-17

 

 

ASMi-52 Installation and Operation Manual

i

Table of Contents

 

Setting the G.704 Interface Type.........................................................................................

4-21

4.3

Configuring the Physical Ports ....................................................................................

4-22

 

Configuring the SHDSL Interface.........................................................................................

4-22

 

Configuring the E1 Interface................................................................................................

4-28

 

Matching Remote Unit Settings With Local Unit Settings......................................................

4-33

 

Configuring the T1 Interface................................................................................................

4-34

4.4

Additional Tasks.........................................................................................................

4-36

 

Displaying the ASMi-52 Status.............................................................................................

4-36

 

Entering the User Name and Password................................................................................

4-38

 

Displaying the ASMi-52 Inventory .......................................................................................

4-40

 

Updating Software Releases ................................................................................................

4-41

 

Resetting ASMi-52 ..............................................................................................................

4-45

 

Exiting the Control Session ..................................................................................................

4-48

Chapter 5. Configuring a Typical Application

 

5.1

Overview.....................................................................................................................

5-1

 

Application ...........................................................................................................................

5-1

 

Guidelines for Configuring ASMi-52 Units .............................................................................

5-1

5.2

Configuring the ASMi-52 units .....................................................................................

5-2

 

Setting the ASMi-52 System Parameters ................................................................................

5-2

 

Configuring the Line Interface Type.......................................................................................

5-4

 

Configuring the Serial DTE Interface......................................................................................

5-4

Chapter 6. Troubleshooting and Diagnostics

 

6.1

Monitoring Performance..............................................................................................

6-1

 

Displaying SHDSL Statistics ...................................................................................................

6-1

 

Displaying E1/T1 Statistics .....................................................................................................

6-4

6.2

Detecting Errors...........................................................................................................

6-8

 

Power-Up Self-Test...............................................................................................................

6-8

 

Front Panel LEDs ..................................................................................................................

6-8

6.3

Handling Alarms ..........................................................................................................

6-8

 

Displaying All Alarms ............................................................................................................

6-9

 

Working with the System Log File .......................................................................................

6-10

 

Displaying the Port Status....................................................................................................

6-10

 

Masking Port Alarms ...........................................................................................................

6-11

6.4

Troubleshooting.........................................................................................................

6-15

 

Working with the Port Log File............................................................................................

6-15

6.5

Testing ASMi-52 ........................................................................................................

6-16

 

Bit Error Rate Test (BERT)....................................................................................................

6-17

 

Running Loopback Tests .....................................................................................................

6-19

 

Running the LEDs Test ........................................................................................................

6-24

6.6

Frequently Asked Questions ......................................................................................

6-24

6.7

Technical Support......................................................................................................

6-25

Appendix A. Interface Connector Specifications

Appendix B. IR-IP Interface Module

Appendix C. Easy Config Device

Index

ii

ASMi-52 Installation and Operation Manual

Chapter 1

Introduction

1.1Overview

ASMi-52 is an SHDSL modem that operates in full-duplex over 2/4-wire lines and offers a cost-effective solution for delivering digital data to customer premises over existing copper cables. ASMi-52 handles multiple data rates in the range of 64–4608 kbps. The unit is available with a single data port or as a multiplexer with two data ports. The modem supports X.21, V.35, RS-530, E1 and T1 interfaces. In addition, ASMi-52 may contain an Ethernet/Fast Ethernet bridge with VLAN support (via management LAN port), or an IP router (IR-IP).

ASMi-52 uses TC-PAM coding and complies with the ITU-T G.991.2 requirements, see page 1-7.

Certain multiplexer application combinations are possible. See Table 1-4 for the multiplexer applications.

Versions

DTE Interface

ASMi-52 supports the following DTE interfaces:

X.21

V.35

RS-530

E1, as per G.704

T1

Ethernet/Fast Ethernet bridge with VLAN support (combined with management LAN port)

IR-IP (IP router).

The following combinations of interfaces can be multiplexed:

V.35 + LAN

E1 + LAN

E1 + serial port (V.35, X.21, RS-530)

Line Interface

ASMi-52 for operation over a 2-wire line

ASMi-52 for operation over a 4-wire line.

ASMi-52 Ver. 2.5

Overview

1-1

Chapter 1 Introduction

Installation and Operation Manual

 

 

Unit Enclosure

ASMi-52 is available in a plastic, metal, or rail-mount enclosure.

Applications

Figure 1-1 illustrates a typical ASMi-52 application, in which standalone modems operate opposite each other. Figure 1-2 shows ASMi-52 units operating opposite a centrally located DXC rack. Figure 1-3 shows ASMi-52 modems operating opposite a centrally located LRS-24 rack.

The following multiplexer applications are supported:

A multiplexer unit opposite the same type of multiplexer unit

A DXC opposite multiplexer units (the multiplexer unit is a CPE), where the DXC supports a multiplexer (the CPE is the receive clock source)

A multiplexer unit configured as a single unit opposite a single unit (where a multiplexer unit is configured as a single unit)

A multiplexer unit opposite an E1 unit, where the single or multiplexer unit is configured as an E1 single unit.

Figure 1-1. Standalone Modem Application

1-2

Overview

ASMi-52 Ver. 2.5

RAD Data comm ASMi-52 User Manual

Installation and Operation Manual

Chapter 1 Introduction

 

 

Figure 1-2. ASMi-52 Modems Operating Opposite a Centrally Located LRS-24 Rack

Figure 1-3. ASMi-52 Modems Operating opposite ASMi-52CD Cards

ASMi-52 Ver. 2.5

Overview

1-3

Chapter 1 Introduction

Installation and Operation Manual

 

 

Features

Note

Functionality

ASMi-52 can be configured to operate in a CO (central office) or CPE (customer premises equipment) mode.

Line Interface

ASMi-52 extends the range of data transmission over 2/4-wire lines up to 7.0 km (4.3 miles), by employing SHDSL TC-PAM technology. ASMi-52 operation complies with the requirements of the ITU-T G.991.2 standard. In addition, 4-wire ASMi-52 units can be configured to operate over 2-wire lines.

Table 1-1 lists typical ASMi-52 ranges over 2/4-wire 26 AWG line.

Table 1-1. Typical Ranges (26 AWG)

 

Data Rate

 

2-wire

 

4-wire

 

 

 

 

 

 

 

 

 

[kbps]

[km]

[miles]

[km]

[miles]

 

 

64

7.5

4.6

 

 

128

7.0

4.3

7.1

4.4

 

 

256

6.7

4.1

6.8

4.2

 

 

384

6.5

4.0

6.7

4.1

 

 

512

6.3

3.9

6.6

4.1

 

 

1024

5.3

3.3

6.0

3.7

 

 

1536

5.0

3.1

5.6

3.5

 

 

2048

4.5

2.8

4.7

2.9

 

 

2304

4.2

2.6

4.5

2.8

 

 

4096

3.7

2.3

 

 

4608

3.0

1.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The typical ranges are based on error-free lab tests without noise. ASMi-52CD/4W operates at data rates up to 4608 kbps, depending on internal or external clock.

1-4

Overview

ASMi-52 Ver. 2.5

Installation and Operation Manual

Chapter 1 Introduction

 

 

DTE Interface

ASMi-52 supports the following DTE interfaces:

X.21

V.35

RS-530

E1, as per G.704

T1

Ethernet/Fast Ethernet bridge with VLAN support (combined with management LAN port)

IR-IP (IP router).

When ASMi-52 is ordered only with the 10/100BaseT port, it can be used to transfer user and management data.

Note An unbalanced E1 interface is provided via an adapter cable (CBL-RJ-45/2BNC/E1). The impedance conversion (120Ω to 75Ω) is performed by ASMi-52 automatically when the adapter cable connection is detected.

ASMi-52 supports multiple data rates between the range of 64 kbps and 4608 kbps. The data rate depends on the following factors:

Unit rate mode (regular or low speed)

Line interface type (2-wire or 4-wire)

DTE interface type of the local and remote units (serial or E1/T1)

Clock mode (internal or external)

Single or multiplexed.

Table 1-2 and Table 1-3 detail the ASMi-52 data rates with the possible combinations of rate mode types, line/DTE interface types, and clock modes.

ASMi-52 Ver. 2.5

Overview

1-5

Chapter 1 Introduction Installation and Operation Manual

Table 1-2. ASMi-52 Data Rates

DTE Interface and Clock Mode

Line Interface

 

 

 

 

Local ASMi-52

Remote ASMi-52

2-wire

4-wire

 

 

 

 

Serial DTE interface,

Serial DTE interface

n × 64 kbps (n = 1, 2, … 32, 36)

n × 128 kbps (n = 1, 2, …32, 36)

internal clock

 

 

 

 

 

 

 

Serial DTE interface,

Serial DTE interface

n × 64 kbps (n = 1, 2, …, 36)

n × 128 kbps (n = 1, 2, …, 36)

external clock

 

 

 

 

 

 

 

Serial DTE interface

E1 DTE interface

n × 64 kbps (n = 3, 4, …, 32)

n × 128 kbps (n = 3, 4, …, 16)

 

 

 

 

E1 DTE interface

Serial DTE interface

n × 64 kbps (n = 3, 4, …, 32)

n × 128 kbps (n = 3, 4, …, 16)

 

 

 

 

E1 DTE interface

E1 DTE interface

n × 64 kbps (n = 1, 2, …, 32)

n × 64 kbps (n = 1, 2, …, 32)

 

 

 

 

T1 DTE interface

T1 DTE interface

n × 64 kbps (n = 1, 2, …, 24)

n × 64 kbps (n = 1, 2, …, 24)

 

 

 

 

Multiplexer

Serial/E1 DTE

n × 64 kbps (n = 1, 2, …, 32)

n × 64 kbps (n = 1, 2, …, 32)

 

(any) interface

 

 

 

 

 

 

Table 1-3. ASMi-52 Data Rates (Low Speed Mode)

Unit and DTE Interface Type

Line Interface

 

 

 

 

 

Local Unit

Remote Unit

2-wire

4-wire

 

 

 

 

 

 

ASMi-52 in low

n × 64 kbps (n = 1, 2, …, 32)

n × 64 kbps (n = 1, 2, …, 32)

 

speed mode

 

 

 

 

 

 

 

 

ASMi-52 in low

ASMi-52 with serial

n × 64 kbps (n = 3, 4, …, 32)

n × 128 kbps (n = 3, 4, …, 16)

speed mode

DTE interface

 

 

 

 

 

 

 

 

 

ASMi-52 with E1

n × 64 kbps (n = 1, 2, …, 32)

n × 64 kbps (n = 1, 2, …, 32)

 

DTE interface

 

 

 

 

 

 

 

 

 

 

Note

The data rates for a multiplexer modem in Table 1-2 include the entire data rates

 

sum for all the interfaces.

 

 

1-6

Overview

ASMi-52 Ver. 2.5

Installation and Operation Manual Chapter 1 Introduction

Multiplexer Applications

Notes The multiplexer unit cannot be configured as a device with LAN only port. It must have a DTE or IR port.

The hardware of a single unit-based product with a LAN port manager is different from that of a multiplexer-based product.

The hardware has different options for the modem to work as a multiplexer.

Table 1-4 shows all the available multiplexer combinations that can be used.

 

 

Note

 

Software for a multiplexer version is available but is not transferable to a single port

 

 

 

 

 

 

unit.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 1-4. Possible Multiplexer Applications

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CO/CPE

 

 

 

E1

 

 

Serial DTE

 

 

LAN

 

 

E1+Serial DTE

 

 

E1+LAN

 

 

Serial

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTE+LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1↔E1

 

 

E1↔E1

 

 

E1↔Serial DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1

 

 

E1↔E1

 

 

E1↔Serial DTE

 

 

E1↔LAN

 

 

E1↔Serial DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1↔E1+Serial

 

 

E1↔E1+LAN

 

 

E1↔Serial

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTE

 

 

 

 

DTE+LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE↔E1

 

 

Serial DTE↔E1

 

 

Serial DTE↔

 

Serial

 

 

Serial DTE↔E1

 

 

Serial DTE↔

 

 

Serial

 

 

 

 

 

 

Serial DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE

 

 

DTE↔LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTE

 

 

 

 

 

 

 

 

 

 

 

Serial DTE↔

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAN↔Serial

 

 

 

 

 

LAN↔E1

 

 

LAN↔E1

 

 

LAN↔Serial

 

 

 

 

LAN↔E1

 

 

 

 

LAN↔LAN

 

 

 

 

 

 

DTE

 

LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTE

 

 

 

 

LAN↔Serial

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTE

 

 

 

 

 

 

 

 

 

 

 

 

E1↔E1

 

 

E1↔Serial DTE

 

 

E1↔LAN

 

 

E1↔ E1+Serial

 

 

E1↔E1

 

 

E1↔Serial DTE

 

 

 

 

 

 

 

 

 

 

DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE↔E1

 

 

Serial DTE

 

 

V.35↔LAN

 

 

E1↔E1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

↔Serial DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1+Serial

 

 

 

 

 

 

 

 

E1↔Serial DTE

 

 

E1↔E1+LAN

 

 

E1↔Serial

 

 

 

 

DTE↔E1

 

 

 

 

 

 

 

 

 

 

 

 

DTE+LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1+Serial

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE↔E1

 

 

Serial DTE↔E1

 

 

Serial DTE↔

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE↔

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1+Serial

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTE↔E1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1+Serial DTE

 

 

E1+Serial

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

↔E1+Serial

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTE↔E1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ASMi-52 Ver. 2.5

Overview

1-7

Chapter 1 Introduction Installation and Operation Manual

Table 1-4. Possible Multiplexer Applications (Cont.)

 

CO/CPE

 

 

E1

 

 

Serial DTE

 

 

LAN

 

 

E1+Serial DTE

 

 

E1+LAN

 

 

Serial

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTE+LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1↔E1

 

 

E1↔Serial DTE

 

 

E1↔LAN

 

 

E1↔E1+Serial

 

 

E1↔E1

 

 

E1↔Serial DTE

 

 

 

 

 

 

 

 

 

 

 

DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1+LAN↔E1

 

 

 

 

 

 

 

 

E1↔E1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1+LAN

 

 

 

 

 

 

 

 

 

 

 

E1↔Serial DTE

 

 

E1↔E1+LAN

 

 

E1↔Serial

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTE+LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1+LAN↔E1

 

 

E1+LAN↔E1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1+LAN↔

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E1+LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE↔E1

 

 

Serial DTE↔

 

 

Serial

 

 

 

 

 

Serial DTE↔E1

 

 

Serial DTE

 

 

 

 

 

 

 

Serial DTE

 

 

DTE↔LAN

 

 

 

 

 

 

 

↔Serial DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE+

 

 

 

 

 

 

 

 

Serial DTE↔E1

 

 

 

 

 

 

 

 

 

 

 

LAN↔E1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial

 

 

 

 

 

 

 

 

 

 

 

Serial DTE↔

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE

 

 

 

 

 

 

 

 

DTE+LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE+

 

 

Serial DTE+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAN↔E1

 

 

LAN↔E1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+LAN↔Serial

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTE +LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DXC

 

 

 

 

 

 

 

 

 

 

 

DXC↔E1+

 

 

DXC↔E1

 

 

DXC↔Serial

 

 

 

 

 

 

 

 

 

 

 

 

 

Serial DTE

 

 

+LAN

 

 

DTE+LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LRS-24

 

 

 

 

 

 

 

 

 

 

 

LRS-24↔

 

 

LRS-24↔

 

 

LRS-24↔Serial

 

 

 

 

 

 

 

 

 

 

 

 

 

E1+Serial DTE

 

 

E1+LAN

 

 

DTE+LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note

Note

Serial DTE = V.35, X.21, RS-530, IR-IP

The following are multiplexer conditions when working with the ASMi-52 unit:

E1+Serial DTE can work as an ‘E1 port only’.

E1+LAN can work as an ‘E1 port only’.

LAN+Serial DTE can work as a ‘Serial DTE port only’.

E1+Ethernet and Serial DTE+Ethernet can be configured as a single port only (‘E1 only’ or ‘Serial DTE only’) while the Ethernet port operates as a management port only.

ASMi-52 E1 or Serial DTE units with a LAN management port previously released with software versions earlier than version 2.5 cannot operate as a multiplexer unit (E1+LAN, Serial DTE+LAN) with version 2.5 due to hardware differences.

Timing

ASMi-52 supports three clock modes:

Internal, derived from its internal oscillator (CO mode)

External, supplied by the attached DTE

1-8

Overview

ASMi-52 Ver. 2.5

Installation and Operation Manual

Chapter 1 Introduction

 

 

Receive, recovered from the received line signal (CPE mode).

Management

ASMi-52 supports the following management options:

ASCII terminal or Easy Config hand-held device via V.24/RS-232 terminal port

Telnet via a dedicated 10/100BaseT port

SNMP network management (RADview) via a dedicated 10/100BaseT port

PC, running a Web browsing application (ConfiguRAD)

Inband management via a dedicated timeslot (units with E1/T1 interface only).

EOC

ASMi-52 provides an inband management channel (EOC) for end-to-end system management and supervision. This management channel uses SHDSL overhead bits and operates without interfering with data transmission.

ConfiguRAD

ConfiguRAD is a user-friendly Web-based terminal management system used for remote device configuration and maintenance. It is embedded in ASMi-52 and provided at no extra cost. ConfiguRAD can be run from any standard Web browser.

Dial-In

The V.24 terminal port supports a dial-up modem connection for remote management of ASMi-52 over telephone lines.

Dial-Out

The V.24 terminal port supports alarm dial-out.

Diagnostics

ASMi-52 supports activation of the following:

Local loopback

Remote loopback

Remote loopback at the SHDSL repeater (activated from the local unit)

Internal Bert (multiplexer units only) vs. multiplexer.

All tests can be activated from the local unit or from the remote unit.

ASMi-52 includes an internal Bit Error Rate Tester (BERT) for complete testing of the local and remote modem and the link quality without any need for an external test equipment. ASMi-52 runs an internal pseudo-random 511-bit test pattern in accordance with the ITU V.52 standard.

Real time alarms provide information on the system status, indicating management failure, synchronization loss and other conditions.

ASMi-52 Ver. 2.5

Overview

1-9

Chapter 1 Introduction

Installation and Operation Manual

 

 

Statistics Collection

ASMi-52 supports SHDSL and E1/T1 statistics collection.

Alarm Reporting

ASMi-52 alarms are relayed via a dedicated 6-pin terminal block connector.

SHDSL Repeaters

Up to eight SHDSL repeaters can be installed in line to increase the operation range of the modem. ASMi-52 provides basic management of the repeaters.

Note

SHDSL repeaters do not support ASMi-52 T1 products.

1.2Physical Description

Figure 1-4 shows a 3D view of the ASMi-52 unit in the plastic enclosure.

Figure 1-4. ASMi-52, 3D View

The front panel includes several LEDs, which display the status of power, data flow and provide diagnostics. For a detailed description of the front panel, see

Chapter 3.

The rear panel includes an AC/DC power connector, a DTE connector, a line connector, a 10/100BaseT port, a V.24 terminal connector, and an alarm relay port. The ASMi-52 rear panel is described in greater detail in Chapter 2.

1.3Functional Description

This section provides a functional description of ASMi-52 in the form of block diagrams (Figure 1-5 and Figure 1-6).

1-10

Functional Description

ASMi-52 Ver. 2.5

Installation and Operation Manual

Chapter 1 Introduction

 

 

Internal

Oscillator

 

Data & Clock

 

 

 

DTE

Modem Glue

 

SHDSL

 

 

Interface

Control Signals

Logic

 

Line Interface

 

 

 

 

 

 

 

 

 

 

 

 

CPU Data Bus

Power

 

 

 

10/100BaseT

 

CPU

 

Management

Supply

 

 

 

 

 

Port

 

 

 

 

 

 

 

 

 

LEDs and Terminal Interface

Figure 1-5. ASMi-52/4W with V.35 Interface and 10/100BaseT Management Port

Figure 1-6. ASMi-52/4W with Framed E1 Interface and 10/100BaseT Management Port

The ASMi-52 modem consists of the following major modules:

DTE interface – Prepares the digital data coming from the DTE into a data stream for modem glue logic. In addition, it translates the data from the modem glue logic into digital data to be sent to the DTE.

ASMi-52 Ver. 2.5

Functional Description

1-11

Chapter 1 Introduction

Installation and Operation Manual

 

 

Internal oscillator – Serves as a source of internal clock for the ASMi-52 unit.

Modem glue logic module – Processes the data from/to the SHDSL interface module.

SHDSL line interface – Translates the received and transmitted data from the line to the DTE interface.

Power supply – Provides 2.5V, 3.3V, 5V and -5V to the ASMi-52 internal elements.

CPU – Controls the ASMi-52 operation.

10/100BaseT management port – Provides LAN connection to the SNMP management station or Telnet host.

LEDs and terminal interface – Provides modem status information via LED indicators on the front panel, and communicates with the supervisory terminal.

1.4Technical Specifications

Line Interface

Type

 

Line Coding

 

Range

 

Impedance

 

Connectors

 

Standard

 

E1 Jitter

 

Performance

 

Protection

DTE Interface

Data Rate

Coding

Line Impedance

2/4-wire unconditioned dedicated line (twisted pair) TC-PAM

See Table 1-1

135Ω

ASMi-52: RJ-45

ASMi-52CD: Two RJ-45

ITU-T 991.2, ETSI 101 524

As per ITU G.823

ITU K.21, UL1950

Depends on the DTE/line interface type and clock mode (see Table 1-2 and Table 1-3)

2-wire (external clock): 64–2304 kbps,

2-wire (internal clock): 64–2048, 2304 kbps

4-wire (external clock): 64–4608 kbps,

4-wire (internal clock): 64–4096, 4608 kbps

ASMi-52CD/4W:

(external clock): 128-4608 kbps (internal clock): 128-4096, 4608 kbps

E1: HDB3

T1: B8ZS or AMI

E1: 120Ω, balanced

75Ω, unbalanced (via adapter cable)

1-12

Technical Specifications

ASMi-52 Ver. 2.5

Installation and Operation Manual

Chapter 1 Introduction

 

 

Connector Type

Management

V.24/RS-232

Ports

Control Port

 

Interface

 

Connector

 

Format

 

Baud Rate

 

Ethernet Port

 

Interface

 

Connector

Timing

 

Diagnostics Loopbacks

Performance

Monitoring

T1: 100Ω, balanced

X.21: 15-pin, D-type, female

V.35 – 34-pin, female

RS-530 – 25-pin, D-type, female

G.703/G.704 E1 – RJ-45, balanced or unbalanced (via adapter cable)

T1 – RJ-45

IR-IP (IP router) – RJ-45

Ethernet (10/100BaseT bridge with VLAN support) – RJ-45

V.24/RS-232 DTE 9-pin D-type, female Asynchronous

9.6 to 115.2 kbps

10/100BaseT RJ-45 shielded

Derived from three alternative sources:

Internal oscillator

External, from the attached DTE

Receive, derived from the received signal

ITU V.54:

Local analog loopback, activated via the management software or by the DTE interface signal (V.35 and RS530 only)

Remote digital loopback, activated via the management software or by the DTE interface signal (V.35 and RS-530 only)

Remote loopback at the SHDSL repeater

SHDSL statistics collection

E1 with CRC-4 or T1 with ESF framing per ITU G.706

E1 without CRC-4 or T1 with SF framing bipolar violations (BPV)

ASMi-52 Ver. 2.5

Technical Specifications

1-13

Chapter 1 Introduction

 

Installation and Operation Manual

 

 

 

Alarm Relay

Operation

Normally Open and Normally Closed, using different

 

 

pins

 

Connector

Terminal block, 6-pin

Indicators

PWR (green)

Power

 

TEST (red)

Test

 

SYNC A/B

Synchronization of DSL line

 

(green/red)

 

 

DATA (yellow)

Data Transfer (except E1 and T1 options)

 

E1/T1 SYNC (red)

Loss of E1/T1 synchronization (E1 and T1 options only)

 

AIS (yellow)

“All 1s string” is received (E1 or T1 interface only)

 

ALM (red)

Alarm

Physical

Plastic Enclosure

 

 

Height

43.7 mm (1.7 in)

 

Width

217 mm (8.5 in)

 

Depth

170 mm (6.7 in)

 

Weight

0.5 kg (1.1 lb)

 

Metal Enclosure

 

 

Height

47.3 mm (1.8 in)

 

Width

215 mm (8.4 in)

 

Depth

147 mm (5.8 in)

 

Weight

0.7 kg (1.5 lb)

 

Rail-Mount Metal

 

 

Enclosure

 

 

Height

150 mm (5.9 in)

 

Width

70 mm (2.7 in)

 

Depth

160 mm (6.3 in)

 

Weight

0.75 kg (1.65 lb)

Power Source

AC/DC Voltage

Wide range power supply:

 

 

100–240 VAC or -48/60 VDC nominal

 

 

DC only:

 

 

24 VDC

 

Power

2-wire: 6W max

 

Consumption

4-wire: 7W max

 

 

1-14

Technical Specifications

ASMi-52 Ver. 2.5

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