ADC Megabit Modem 320F User Manual
MEGABIT MODEM 310F AND
320F USER MANUAL
Catalog Number
MMD4067I2 Issue 2
Copyright
June 11, 2002
©2002 ADC DSL Systems, Inc. All rights reserved.
Information contained in this document is comp any private to ADC DSL Systems, Inc., and shall not be
modified, used, copied, reproduced or disclosed in whole or in part without written consent of ADC.
Trademark Information
ADC is a registered trademark of ADC Tel ecommunications, Inc.
Megabit Modem is a regist ered trademark of DSL Systems, Inc. No right, license, or interest to such
trademarks is granted hereunder, and you agree that no such right, license, or interest shall be asserted
by you with respect to such trademark.
Other product names ment ioned in this manual are used for identification purposes only and may be
trademarks or registered trademarks of their respective companies.
Disclaimer of Liability
Contents herein are current as of the date of publication. ADC reserves th e right to change the contents
without prior notice. In no event shall ADC be liable for any damages resultin g fro m loss of data , loss of
use, or loss of profits, and ADC further disclaims any and all liability for indirect, incidental, special,
consequential or other similar damages. This disclaimer of liability applies to all products, publications
and services during and after the warra nty period.
Specific Disclaimer for High-risk Activities
This product is not designed or intended for use in high-risk activities, including, without restricting the
generality of the foregoing, on-line control of aircraft, air traffic, aircraft navigation or aircraft
communications; or in the design, construction, operation or maintenance of any nuclear facility. ADC
(including its affiliates) and its suppliers specifically disclaim any express or implied warranty of fitness
for such purposes or any other purposes.
ii Megabit Modem 310F and 320F User Manual
About This M anual
ABOUT THIS MANUAL
This manual is intended to help a network administrator install and configure the ADC®
Megabit Modem 310F and 320F for use in a private network environment. It includes:
• a summary of the modem features and suggested applications
• instructions for installing and configuring th e modem s
• explanation of the performance monitoring screens
• technical specifications and cabling pinouts
• a glossary
DOCUMENT CONVENTIONS
Two types of messages, identified by icons, are used throughout the document:
Notes contain information about special circumstances.
Cautions indicate the possibility of equipment damage or the possibility of
personal injury.
PRODUCT CERTIFICATIONS
FCC
Megabit Modem
This equipment has been tested and f ound to comply with the limits for a Class B 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 environmen t. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used
in accordance with this instruction manual, may cause harmful interference to radio
communication.
Megabit Modem 310F and 320F User Man ual iii
Product Cer tifications
However, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
• Consult the dealer or an experienced radio/TV technician for help.
cUL
This product meets all safety requirements per UL-1950 standard.
iv Megabit Modem 310F and 320F User Manual
Table of Contents
TABLE OF CONTENTS
Chapter 1: Megabit Modem 310F and 320F Features and Applications...........................1
Features................................................................................................................................1
Applications.........................................................................................................................2
Chapter 2: Installing the Megabit Modem 310F and 320F..................................................3
Unpacking and Inspecting the Shipment.............................................................................3
Attaching the Feet................................................................................................................4
Identifying The Connectors.................................................................................................5
Installing the Cabling ..........................................................................................................6
Identifying LEDs.................................................................................................................7
Powering Up and Checking LEDs ......................................................................................8
Chapter 3: Preparing for Configuration and Management................................................9
Connecting a Terminal........................................................................................................9
Configuring the Terminal..................................................................................................10
Logging On and Navigating the Interface.........................................................................10
Logging On to the Local Modem........................................................................10
Logging On to the Remote Modem ....................................................................12
Navigating the Interface......................................................................................13
Logging Off.......................................................................................................................14
Chapter 4: Configuring the Modems...................................................................................15
Setting System Configurations..........................................................................................15
Changing the System Time.................................................................................16
Changing the System Date..................................................................................16
Changing the Logon Password............................................................................ 17
Restoring Factory Default Settings.....................................................................18
Disabling or Enabling the RS-232 Port For the Megabit Modem 320F .............19
Megabit Modem 310F and 32 0F U ser Manual v
Table of Cont en t s
Configuring ADSL Service ...............................................................................................20
Configuring the Startup Settings.........................................................................21
Configuring Data Rates.......................................................................................22
Configuring the SNR Margin Threshold.............................................................23
Configuring the ES Threshold......................................... ..... ...... .........................23
Configuring Alarms.............................................................................................24
Configuring the Interleave Options.....................................................................25
Saving ADSL Configuration Changes................................................................25
Resetting the ADSL Link....................................................................................26
Configuring Bridge Parameters.........................................................................................27
Configuring Bridge Aging Time.................... ..... ........................................ ...... ..27
Configuring the Source Address Database..........................................................28
Resetting the Bridge............................................................................................30
Chapter 5: Monitoring Circuit Status and Displaying System Information....................31
Monitoring ADSL Status...................................................................................................31
Monitoring ADSL Performance Status...............................................................32
Monitoring 24 Hour ADSL Performance History...............................................34
Monitoring 7 Day ADSL Performance History..................................................35
Monitoring ADSL Alarm History.......................................................................36
Monitoring Ethernet Bridge Statistics...............................................................................38
Displaying System Information.........................................................................................41
MAC Layer Bridging........................................................................................... ...... ........43
Data Encapsulation............................................................................................................43
Ethernet Frame Rates.........................................................................................................44
Minimum xDSL Bit Stuffing, One Additional Bit..............................................44
Maximum xDSL Bit Stuffing, Zero Additional Bits...........................................46
vi Megabit Modem 310F and 320F User Man ual
Table of Contents
Rate Adaptive Transmission..............................................................................................47
Rate Adaptation...................................................................................................48
Reach, Data Rate, SNR Margin, and Noise Environment..................................48
Technical Specifications....................................................................................................51
Compliance........................................................................................................................52
Connector Pinouts .............................................................................................................53
Limited Warranty ........................................................ ...... ..... ........................................ ...56
Megabit Modem 310F and 32 0F U ser Manual vii
Table of Cont en t s
viii Megabit Modem 310F and 320F User Manual
MEGABIT MODEM 310F AND 320F
FEATURES AND APPLICATIONS
The ADC® Megabit Modem® 310F and 320F use Asymmetric Digital Subscriber Line (ADSL)
technology to provide a multi-megabit connection between the two modems using a single-pair
telephone line. The Megabit Modem 310F and 320F are designed to be used together, one at
each end of a circuit, with the model 310F functioning as the ATU-C and the model 320F
functioning as the ATU-R . The Megabit Modem 310F and 320F use Discrete MultiTone (DMT)
line coding. In addition, ADSL technology allows POTS (Plain Old Telephone Service) to
coexist with the high-speed data service on the same wire pair.
The Megabit Modem 310F and 320F support the full DMT rate of 64kbps to 7040 kbps
downstream and 64 kbps to 928 kbps upstre am. The Megabit Modem 310F and 320F can be
used in either rate adaptive mode, in which the modem speed automatically adjusts to the
maximum attainable data rate depending on distance and line condition, or you can select
a fixed rate.
FEATURES
Megabit Modem 310F and 320F features include:
• 10BASE-T Ethernet port for LAN connection
1
• ADSL port for ADSL connection
• IEEE 802.1d transparent MAC layer bridging of frames received on the LAN port
• full DMT transmission rates
– 64 kbps to 7040 kbps downstream
– 64 kbps to 928 kbps upstream
• RS-232 port for management
The Spanning Tree protoc ol is not suppo rted in the Me gabit Modem 310F or 320F.
Megabit Modem 310F and 32 0F U ser Manual 1
Applications
APPLICATIONS
Use the Megabit Modem 310F and 320F for:
• remote access to private networks, for example telecommuting
• point-to-point LAN extension, for example connecting multiple users at a satellite office
to a corporate office LAN
Telecommuting Application
Home office
Local User
ADSL ADSL
LAN Extension Application
Satellite office
Ethernet LAN
Service Provider
310F Router 310F
320F Modem
ADSL
Corporate office
320F Modem320F Modem
Ethernet LAN
Corporate office
310F Modem
Ethernet LAN
2 Megabit Modem 310F and 320F User Man ual
INSTALLING THE MEGABIT
MODEM 310F AND 320F
Install a Megabit Modem 310F (ATU-C) at one end of a circuit and a Mega bit Modem 320 F at
the other end (ATU-R), using the procedures described in these sections:
UNPACKING AND INSPECTING THE SHIPMENT
The shipping carton contains the Megabit Modem 310F or 320F, this manual and the items
described on page 4. Upon receipt of the equipment:
1 Unpack each container and visually inspect it for
signs of damage. If the equi pment has been damaged
in transit, immediately report the extent of damage to
the transportation company and to your sales
representative. Order replacement equipment if
necessary.
2 Check the shipment contents against the packing list
to ensure complete and accurate shipment. If the
shipment is short or irregular, contact your sales
representative. If you must store the equipment fo r a
prolonged period, store the equipment in its original container.
LINK
LAN
T
X
R
X COL P
WR
MEGABITMODEM
SY
N
C
SDSL
TX
RX
310F
MAR
2
Megabit Modem 310F and 320F User Man ual 3
Attaching the Feet
The shipping carton also contains the items described in the following table.
Item Function
Black cable Connects the modem Ethernet port to a PC NIC using a straight-through cable.
Yellow cable Connects the modem Ethernet port to a network hub using a crossover cable.
Gray ADSL cable Connects the modem ADSL port to an RJ-11 wall jack that has DMT ADSL service.
Gray console
cable and adapter
Universal power
supply
Rubber Feet (4) Attaches to the base of the modem.
Connects the modem RS-232 port to an ASCII terminal or PC running a terminal emulation
program for configuration and management. Cable has RJ-45 connectors. The adapter
converts the RJ-45 port to a DB-9.
Provides primary power to the modem and establishes a safety ground. The Megabit
Modem 310F and 320F are available with a variety of power cords. When you order your
modem, choose one of the following as the last number in the product PN (Megabit Modem
310F is PN 150-2103-7x and Megabit Modem 320F is PN 150-2102-7x) to indicate which
power cord you need:
• 2 does not include a power cord
• 3 includes a North American power cord
• 4 includes a European power cord.
• 5 includes a UK/Ireland power cord
ATTACHING THE FEET
Attach four adhesive-backed rubber feet to the footprint recesses on the bottom of the modem.
Rubber feet
Recess
RX MAR
TX
SDSL
MODEM 310F
SYNC
MEGABIT
PWR
RX COL
LAN
LINK TX
4 Megabit Modem 310F and 32 0F User Manual
Chapter 2: Installing the Megabit Modem 3 10F and 320F
IDENTIFYING THE CONNECTORS
All external connectors are located on the Megabit Modem 310F and 320F rear panel. This
section describes the Megabit Modem 310F and 320F rear panel components.
Component Function
10BASE-T
MDI-X port
RS-232 port RJ-45 port used to connect an ASCII terminal, or PC running a terminal
DSL port RJ-11 port used to connect the modem to the ADSL transmission line.
POWER connector 7-pin DIN port that supplies power to the Megabit Modem 310F and 320F.
RJ-45 port used to connect the modem to the 10BASE-T port of a network hub
or PC NIC.
emulation program, for configuration and management.
Connect only the power s uppl y p r ovid ed to th e Megabit Modem
310F or 320F. Using any oth er po wer supp ly c ould perm anen tly
damage the unit.
Megabit Modem 310F and 320F User Man ual 5
Installing the Cabling
INSTALLING THE CABLING
Use the provided cables as follows:
• black cable or yellow cable—connect to 10BASE-T port for Ethernet LAN connection
• gray ADSL cable—connect to DSL port for ADSL connection
• power supply—connect to power connector
Megabit Modem 310F or 320F
PC, hub or other
network device
10BASE-T port
RS-232 port
DSL port
Wall RJ-11 jack with ADSL
transmission
10BASE-T
RS-232
D
S
L
P
P
O
O
W
W
E
E
R
R
Power
connector
To wall
outlet
Do not connect any other power supply to the Megabit Modem 310F or 320F.
If you use another power supply, you could permanently damage the unit.
See “Connector Pinouts” on page 53 for ADSL and 10BASE-T connector pinouts.
6 Megabit Modem 310F and 32 0F User Manual
Chapter 2: Installing the Megabit Modem 3 10F and 320F
IDENTIFYING LEDS
The front panels for both the Megabit Modem 310F and 320F contain LEDs that indicate power
and data transmission status. The following illustrations describe the front panel LEDs.
Off: No current reception
Flashing: Collision detected
Off: No current collision
LINK TX RX COL PWR SYNC RX MARTX
LAN
Flashing:
Off:
Transmitting a frame
No current transmission
MEGABIT MODEM 320F
On: Network link is up
Off: Link is down
LINK TX RX COL PWR SYNC RX MARTX
LAN
Flashing:
ADSL link dropped
MEGABIT MODEM 320F
Off: No remote modem detected
On:
Link is up
Flashing:
Off:
Transmitting a frame
No current transmission
Flashing:
Off:
No current reception
On:
Margin is at or above configured threshold
Off:
Margin is below configured threshold
ADSL
On: Power is available to the modem
Off: Power is off
ADSL
Receiving a frame
Megabit Modem 310F and 320F User Man ual 7
Powering Up and Checking LEDs
Powering Up and Checking LEDs
Once you have completed the steps described in the previous sections for both the Megabit
Modem 310F and 320F, you are ready to power up each modem.
1 Plug the Megabit Modem 310F power supply into the facility power and ensure the
Power LED is lit solid green.
2 Plug the Megabit Modem 320F power supply into the facility power and ensure the
Power LED is lit solid green.
3 Allow the modems approximately 30 to 60 seconds to synchronize.
4 After both modems are powered up, verify the following L ED indicatio ns on each modem:
• 10BASE-T LINK LED is soli d green (when the Ethernet port is connected)
• ADSL SYNC LED is solid green when the Megabit Modem 310F synchronizes wit h
the Megabit Modem 320F (the LED flashes green when synchronization is lost
between the two modems)
• ADSL MAR LED is solid green if margin is at or above the configured threshold
If conditions other than those listed above exist, check the cabling. See “Installing the Cabling”
on page 6 for instructions.
8 Megabit Modem 310F and 32 0F User Manual
PREPARING FOR CONFIGURATION
AND
MANAGEMENT
You configure the Megabit Modem 310F and 320F using an ASCII terminal or PC running a
terminal emulation program. This chapter provides the set up procedures.
CONNECTING A TERMINAL
Connect the modem to an ASCII terminal or PC running a terminal emulation program:
1 Plug the console adapter into the standard 9-pin COM port on the terminal or PC and
tighten the captive screws until they are snug. (Skip this step if you are using an ASCII
terminal that has an RJ-45 jack.)
2 Connect one end of the gray console cable to the adapter or ASCII terminal RJ-45 jack.
3 Connect the other end of the gray console cable to the modem RS-232 RJ-45 port.
Megabit Modem 310F or 320F
PC
RS-232 port
3
10BASE-T
RS-232
D
S
L
P
P
O
O
W
W
E
E
R
R
Megabit Modem 310F and 32 0F U ser Manual 9
Configuring the Terminal
CONFIGURING THE TERMINAL
Whether you are using an ASCII ter minal or PC running a term inal emulation program, such as
Hyperterminal, you must configure the communication settings as indicated in this section,
including designating the connection type and communications port. See your terminal
emulation program or operating system documentation for instructions .
1 Configure these communication settings:
• 9600 to 19,200 baud
• no parity
• 8 data bits
• 1 stop bit
• no flow control
2 Set the terminal em ulation mode to ANSI.
LOGGING ON AND NAVIGATING THE INTERFACE
Using the management interface, you can manage both the Megabit Modem 310F and 320F.
The header on each screen identifies the modem you are currently managing:
• ATU-C is the Megabit Modem 310F.
• ATU-R is the Megabit Modem 320F.
Logging On to the Local Modem
Through the Megabit Modem 310F (ATU-C) System Configuration menu,
you can disable the console port on the Megabit Modem 320F (ATU-R).
Use an ASCII terminal or PC running a terminal emulation program to access
the management interface.
1 Press the several times to activate the autobaud feature and to display the
Logon Password screen.
10 Megabit Modem 310F and 32 0F User Manual
SPACEBAR
Chapter 3: Preparing for Configuration and Manageme nt
2 If you have customized your password, type the password at the password prompt.
Otherwise, press which is the factory default password. (See “Changing the Logon
ENTER
Password” on page 17 to customize your password.)
07/20/99 PAIRGAIN TECHNOLOGIES 00:47:59
LOGON PASSWORD>
The
Main Menu displays.
07/20/99 PAIRGAIN TECHNOLOGIES 03:25:24
ATU-C ADSL MEGABIT MODEM TERMINAL v 1.0
ATU-C ADSL MEGABIT MODEM TERMINAL v 1.0
MAIN MENU
1. SYSTEM MENU
2. ADSL MENU
3. BRIDGE MENU
4. REMOTE LOGON
Q. LOGOUT
ENTER CHOICE-->
Megabit Modem 310F and 32 0F U ser Manual 11
Logging On and Navigating the Interfa ce
Logging On to the Remote Modem
From the Megabit Modem 310F (ATU-C), you can log on to the Megabit Modem 320F
(ATU-R) to view system parameters and set configuration options in one of the following ways:
• From the Main Menu on the ATU-C, type and the ATU-R Logon screen displays.
• Type to toggle from any ATU-C screen and the ATU-R Logon screen displays.
ATU-C displays
in the header
when logged on
to the Megabit
Modem 310F
ATU-R displays
in the header
when logged on
to the Megabit
Modem 320F
CTRL T
07/20/99 PAIRGAIN TECHNOLOGIES 00:17:43
ATU-C ADSL MEGABIT MODEM TERMINAL v 1.0
ENTER CHOICE-->
07/20/99 PAIRGAIN TECHNOLOGIES 00:17:45
ATU-R ADSL MEGABIT MODEM TERMINAL v 1.0
4
MAIN MENU
1. SYSTEM MENU
2. ADSL MENU
3. BRIDGE MENU
4. REMOTE LOGON
Q. LOGOUT
LOGON PASSWORD>
Once you log on to both the ATU-C and ATU-R modems, type to toggle between the
CTRL T
ATU-C and ATU-R screens to perform configuration or to view status.
When you log on local ly to the Megab it Modem 320F, you can vi ew system param eters and s et
some configuration options for the Megabit Modem 320F only.
12 Megabit Modem 310F and 32 0F User Manual
Chapter 3: Preparing for Configuration and Manageme nt
Navigating the Interface
The following illustration shows the Megabit Modem 310F and 320F management interface
structure. Select a menu option by typing the number that precedes it.
Logon
Main Menu
System Menu
ADSL Menu
Bridge Menu
System Information
System Configuration
ADSL Performance Status
24 Hour ADSL Performance History
7 Day ADSL Performance History
ADSL Alarm History
ADSL Transceiver Configuration Menu*
ADSL Link Reset
Bridge Aging Time
Bridge Reset
Bridge Statistics Menu
Source Address Database Menu
Remote Logon
*Read-only field for the Megabit Modem 320F
Megabit Modem 310F and 32 0F U ser Manual 13
Loading...