ADC 700F, 600F User Manual
Megabit Modem
Megabit Modem
Megabit Modem 400F, 500L, 600F, and
700F User Manual
Version 3.2.X
Catalog Number
MMD4090I1 Issue 1
C
ht
opyrig
March 2001
©Copyright 2001 ADC DS L Syst em s, Inc. All Rights Reserved.
Trademark Information
ADC is a registered trademark of ADC Telecommunications, Inc.
Avidia and Megabit Modem are registered trademarks of PairGain Technologies, Inc. No right, license, or interest to
such tradema rks is g rante d here under , an d you ag ree t hat no such r ight, licen se, or inte rest s hall b e asser ted by you wi th
respect to such trademark.
Other product names ment ion ed in this practice are used for identification purposes only and may be tr ademarks or
registered trad em arks of their respect ive companies.
Disclaimer of Liability
Information contained in this document is company private to ADC DSL Systems, Inc., and shall not be modified, used,
copied, reproduced or disc lose d in whole or in part without the wr it te n consent of ADC.
Contents herein are current as of the dat e of publication. ADC res erves the right to change the contents wi thout prior
notice. In no event shall ADC be liab le for any damages resulting from loss of data, loss of use, or loss of profits, a nd
ADC further disclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This
disclaimer of liability applie s to a ll products, publications and services during and after the warranty period.
ii Megabit Modem 400F, 500L, 600F, and 700F User Manual
About This User Manual
ABOUT THIS USER MANUAL
Use this manual to install and configure the Megabit Modem® 400F, 500L, 600F, and 700F.
This manual provides instruction on:
• information you will need to configure the modem
• unpacking and inspecting the modem for installation
• installing the modem
• setting up parameters for your applications that will be used to configure the modem
• configuring system parameters
• configuring sessions between the modem and a service provider
• monitoring and troubleshooting the modem
Chapter 10 provides a reference for the technology implemented in the Megabit Modem 400F,
500L, 600F, and 700F. This chapter covers information about ATM over ADSL transmission,
operating modes of PPP or bridging/routing, and SNMP management.
IP addresses used in this manual are for example only. You will acquire your own addresses
from the service provider and your information services coordinator to configure the Megabit
Modem 400F, 500L, 600F, and 700F. However, you will use the IP address specified in
“Accessing the Modem Web Pages” on page 27 to access the Megabit Modem 400F, 500L,
600F, and 700F from a Web browser.
DOCUMENT CONVENTIONS
Two types of messages, identified by icons, appear in the text.
Notes contain information about special circumstances.
Cautions indicate the possibility of equipment damage or the possibility of
personal injury.
Megabit Modem 400F, 500L, 600F , and 700F User Manual iii
Product Cer tifications
PRODUCT CERTIFICATIONS
FCC Class B Compliance
This equipment has been tested and f ound to comply with the limits for a Class B d igital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not ins talled and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation.
If this equipment does cause harmf ul interference to rad io 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.
UL
This product meets all safety requirements per UL-1950 standard.
CE
This product meets all EMC and safety requirements per EN 300 386-2 and IEC 950
(EN60950).
iv Megabit Modem 400F, 500L, 600F, and 700F User Manual
Table of Contents
TABLE OF CONTENTS
Chapter 1: About The Product...............................................................................................1
Megabit Modem 400F.........................................................................................................2
Megabit Modem 500L.........................................................................................................4
Megabit Modem 600F.........................................................................................................5
Megabit Modem 700F.........................................................................................................6
Chapter 2: What You Need To Start.....................................................................................9
Verify Package Contents.....................................................................................................9
Requirements For Your System ........................................................................................10
Requirements For The Installation Site.............................................................................10
Location for Modem Installation ........................................................................10
Phone Service......................................................................................................13
What You Need from Your Service Provider...................................................................13
What You Will Choose .....................................................................................................14
Configuration ......................................................................................................14
Power Cable................................................................... .....................................14
Chapter 3: Installing the Modem.........................................................................................15
Attaching the Feet..............................................................................................................16
Setting the MDI/MDI-X Switch........................................................................................17
Installing Cabling ..............................................................................................................18
Setting Up ADSL Service .................................................................................................20
Checking LED Indications................................................................................................20
Connecting Phone Service.................................................................................................21
Chapter 4: Setting Up For Configuration...........................................................................23
Setting Up the PC To Configure the Modem....................................................................24
Configuring a Web Browser..............................................................................................25
Accessing the Modem Web Pages.....................................................................................27
Saving the Configuration...................................................................................................28
Megabit Modem 400F, 500L, 600F , and 700F User Manual v
Table of Cont en t s
Saving the Configuration to NVRAM.................................................................29
Resetting the Modem...........................................................................................30
Resetting the Modem to Factory Defaults...........................................................31
Chapter 5: Configuring System Settings .............................................................................35
Defining TFTP Parameters................................................................................................36
Defining SNMP Parameters...............................................................................................38
Defining Static NAT Entries..............................................................................................40
Configuring Static MAC Entries.......................................................................................42
Display Static MAC Entries................................................................................42
Add a Static MAC Entry.....................................................................................42
Modify a Static MAC Entry................................................................................42
Delete a Static MAC Entry..................................................................................43
Configuring Static Routes..................................................................................................44
Display Static Routes ..........................................................................................44
Add a Static Route...............................................................................................44
Modify a Static Route..........................................................................................44
Delete a Static Route...........................................................................................45
Configuring System Security.............................................................................................46
Admin IP Address...............................................................................................46
RS-232 MGMT Port............................................................................................47
Selecting the System Mode of Operation..........................................................................48
Chapter 6: Configuring PPP Sessions..................................................................................51
Selecting Configuration Parameters..................................................................................52
Setting Up the PPP Mode (700F Only) .............................................................................52
Configuring the WAN PPP Sessions.................................................................................53
Add a PPP over ATM WAN Session..................................................................54
Modify a PPP over ATM WAN Session.............................................................57
Delete a PPP over ATM WAN Session ..............................................................57
Configuring the LAN.........................................................................................................58
vi Megabit Modem 400F, 500L, 600F , and 700F User Manual
Table of Contents
Configure Modem Parameters ............................................................................58
Saving the Configuration....................................................................................59
Assigning LAN Users to PPP Sessions............................................................................. 60
Add a User Assignment ......................................................................................60
Delete a User Assignment:..................................................................................61
Activating and Deactivating Sessions...............................................................................62
Chapter 7: Configuring Bridging/Routing Sessions...........................................................63
Setting Up the Bridging/Routing Mode (700F Only)........................................................64
Configuring the WAN Bridging/Routing Sessions...........................................................65
Add a Bridging/Routing WAN Session..............................................................66
Modify a Bridging/Routing WAN Session.........................................................68
Delete a Bridging/Routing WAN Session...........................................................68
Configuring the LAN ........................................................................................................69
Configure Modem Parameters ............................................................................69
Saving the Configuration....................................................................................70
Activating and Deactivating Sessions...............................................................................71
Chapter 8: Viewing Statistics ...............................................................................................73
Viewing ADSL Status ...................................... ..... ............................................................73
Viewing Network Statistics.......................................................... .....................................75
LAN Statistics.....................................................................................................75
WAN Statistics....................................................................................................76
Chapter 9: Maintenance and Troubles hooting...................................................................77
Maintenance ......................................................................................................................77
Updating Software ..............................................................................................77
Using the RS-232 Management Port................................................................... 80
Setting Up the PC to Request an IP Address.....................................................................83
Troubleshooting.................................................................................................................84
Chapter 10: Technical Reference.........................................................................................85
Transmission on the Wide Area Network.........................................................................85
Megabit Modem 400F, 500L, 600F , and 700F User Manual vii
Table of Cont en t s
ADSL...................................................................................................................85
ATM....................................................................................................................86
System Mode Encapsulation..............................................................................................87
PPP ......................................................................................................................87
Bridging...............................................................................................................88
Routing................................................................................................................90
Encapsulation for RFC 1483 Bridging/Routing..................................................90
Management Protocols ................................................. ..... ................................................91
SNMP..................................................................................................................91
MIB and Trap Support ........................................................................................92
DNS Resolution.................................................................................................................93
TFTP Server.......................................................................................................................93
Appendix A: Specifications and Data ...................................................................................95
WAN Interface Specifications...........................................................................................95
Encapsulation.....................................................................................................................96
LAN Interface....................................................................................................................97
Physical Specifications......................................................................................................97
Power Supply.................................... ....................................... ..........................................97
Environmental....................................................................................................................97
Compliance........................................................................................................................98
RFCs ..................................................................................................................................98
MIBs ..................................................................................................................................98
Rate vs. Reach....................................................................................................................99
Hardware..........................................................................................................................100
Installation Kit.......................................... ...... ..... ..............................................100
Connector Pinouts .............................................................................................101
Appendix B: Technical Assistance and Returns................................................................103
Technical Support............................................................................................................103
World Wide Web.................................................... .........................................................103
viii Megabit Modem 400F, 500L, 600F , and 700F User Manual
Table of Contents
Advance Replacement.....................................................................................................103
Billing..............................................................................................................................104
Returns.............................................................................................................................105
Appendix C: Configuration Worksheets............................................................................107
Appendix D: Glossary ..........................................................................................................117
Megabit Modem 400F, 500L, 600F , and 700F User Manual ix
Table of Cont en t s
x Megabit Modem 400F, 500L, 600F, and 700F User Manual
ABOUT THE PRODUCT
You have purchased the Mega bit Modem® that connects
your Ethernet LAN to service providers for instant and
high-speed access to the Internet or to other types of Wide
Area Network (WAN) applications. It uses Asymmetric
Digital Subscriber Line (ADSL) technology to give you
broadband access over existing cabling in your home,
office, or building.
The Megabit Modem is easy to install and configure. To
install the modem:
• connect a telephone cable from the modem to a wall phone jack for ADSL service
• connect a cable from the modem to a PC or an Ethernet hub for LAN service
• connect a power cable to a local power source
To access the modem configuration, you launch your Web browser and enter the modem IP
address as the URL. Use the modem Web pages to:
• configure ADSL, LAN, and WAN parameters
• view ADSL, IP, LAN, and WAN statistics
1
• upgrade software
• define SNMP parameters
• perform a syste m reset
• define static MAC, NAPT, and route tables
In addition, the LEDs on the modem front panel provide continual s tatus at-a-glance for network
and modem connections.
The following sections list the Megabit Modem 400F, 500L, 600F, and 700F features and
applications.
Megabit Modem 400F, 500L, 600F , and 700F User Manual 1
Megabit Modem 400F
MEGABIT MODEM 400F
The Megabit Modem 400F is designed for LAN applications and offers these features:
• supports full-rate ADSL and G.lite
• offers rates up to 7.552 Mbps downstream and 928 kbps upstream for full rate
• offers rates up to 1.5 Mbps downstream and 512 kbps upstream for G.lite
• offers symmetric rates up to 928 kbps
• supports 1483 bridging and routing over ATM
• supports up to 32 Bridge/Router sessions
• contains an embedded SNMP agent
• operates as a DHCP server
• supports NAT (including NAPT) and DNS
See the illustration on the next page for an application example.
2 Megabit Modem 400F, 500L, 600F, and 70 0F User Manual
Chapter 1: About The Product
i
Bus
ness Internet Access
ADSL
400F
Megabit Modem 400F, 500L, 600F , and 700F User Manual 3
Internet
Megabit Modem 500L
MEGABIT MODEM 500L
The Megabit Modem 500L is a rate adaptive G.lite modem for single user applications and
offers these features:
• complies with the G.lite standard
• offers rates up to 1.5 Mbps downstream and 512 kbps upstream
• supports RFC 2364 PPP over ATM ( AAL 5)
• supports up to 8 sessions
• contains an embedded SNMP agent
• operates as a DHCP server
• supports NAT (including NAPT) and DNS
Microfilter
ADSL
500L
4 Megabit Modem 400F, 500L, 600F, and 70 0F User Manual
Internet
Chapter 1: About The Product
MEGABIT MODEM 600F
The Megabit Modem 600F is a high-performance ADSL modem designed for power users. It
offers these features:
• supports full-rate ADSL and G.lite
• offers rates up to 7.552 Mbps downstream/928 kbps upstream for full rate
• offers rates up to 1.5 Mbps downstream/512 kbps upstream for G.lite
• offers symmetric rates up to 928 kbps
• supports RFC 2364, carrying PPP traffic over ATM (AAL5)
• supports 32 PPP sessions
• contains an embedded SNMP agent
• operates as a DHCP server
• supports NAT (including NAPT) and DNS
600F
POTS
Splitter
Provider
Network
Megabit Modem 400F, 500L, 600F , and 700F User Manual 5
Megabit Modem 700F
MEGABIT MODEM 700F
The Megabit Modem 700F is designed as an ADSL router for LAN applications.
• supports full-rate ADSL and G.lite.
• offers rates up to 7.552 Mbps downstream/928 kbps upstream for full rate
• offers rates up to 1.5 Mbps downstream/512 kbps upstream for G.lite
• offers symmetric rates up to 928 kbps
• supports RFC 2364 PPP traffic over ATM (AAL5)
• supports 1483 bridging and routing over ATM
• supports up to 32 sessions in PPP O ver ATM mode or
supports up to 32 sessions in Bridge/Router mode
• contains an embedded SNMP agent
• operates as a DHCP server
• supports NAT (including NAPT) and DNS
See the illustration on the next page for an application example.
6 Megabit Modem 400F, 500L, 600F, and 70 0F User Manual
Chapter 1: About The Product
i
Large Bus
ness Internet Access
ADSL
700F
Megabit Modem 400F, 500L, 600F , and 700F User Manual 7
Internet
Megabit Modem 700F
8 Megabit Modem 400F, 500L, 600F, and 70 0F User Manual
WHAT YOU NEED TO START
This chapter identifies the preparations and prerequisites for installing the Megabit Modem
400F, 500L, 600F, and 700F. Before installing the modem, verify that:
• The contents of the package are accurate as described on this page.
• Your system meets the requirements for connecting to and configuring the modem
(see “Requirements For Your System” on page 10).
• Your facility meets the installation site requirements (see “Requirements For The
Installation Site” on page 10).
• The configuration parameters are available from your service provider (see “What You
Need from Your Service Provider” on page 13).
VERIFY PACKAGE CONTENTS
As you unpack your Megabit Modem, visually inspect the contents for signs of damage. If the
equipment was damaged in transit, report the damage to the transportation company and to the
sales representative.
Check the contents of the package for the
following:
2
• one black cable
• one grey phone cord
• four rubber, self-adhesive feet
• two screws
• power supply and optiona l power cord
(see “Power Cable” on page 14 for options)
• grey cable and DB-9 console port adapter
If you need to store the modem for a prolonged period, store it in the original antistatic bag
and packaging. Observe environmental specifications as stated on page 97.
Megabit Modem 400F, 500L, 600F , and 700F User Manual 9
Requirements For Your System
REQUIREMENTS FOR YOUR SYSTEM
You need the following hardware and software to complete the installation and configuration of
the Megabit Modem 400F, 500L, 600F, and 700F:
• PC with an Ethernet Network Interface Card (NIC)
• TCP/IP network protocol stack (see the operating system documentation)
• Web browser installed such as Netscape
• Ethernet hub (optional )
®
or Internet Explorer® Version 4.0 or higher
REQUIREMENTS FOR THE INSTALLATION SITE
Before installing the Megabit Modem 400F, 500L, 600F, and 700F, you must:
• select a location to install the modems as described in the sectio n below
• identify requirements to connect phones as described in the section “Phone Service” on
page 13
Location for Modem Installation
You can install the modem either:
• placed on a flat surface (shown on page 11)
• mounted on a wall (shown on page 12)
Your facility must have the following minimum site requirements to install each modem:
• power outle t
• RJ-11 wall jack that has DMT ADSL service available
10 Megabit Modem 400F, 500L, 600F, and 700F User Manual
Flat-Surface Mount
Do not stack the mode ms when installing on a flat surface. The modems do not
dissipate heat properly when stacked.
Place the modems on a flat surface, such as on a table or in a rack.
PWR LINK TX RX
LAN
MEGABIT
MODEM
SYNC
TX
ADSL
7
RX MAR
00F
OH
PWR LINK TX RX
LAN
MEGABIT
MODEM
SYNC
TX RX MAR
ADSL
7
00F
OH
Minimum
1-inch clearance
Minimum
1-inch clearance
PWR LINK TX RX
LAN
MEGABIT
MODEM
SYNC
TX RX MAR
ADSL
7
00F
OH
Chapter 2: What You Need To Start
Megabit Modem 400F, 500L, 600F , and 700F User Manual 11
Requirements For The In stallation Site
Wall Mount
Observe the minimum dimensions between multiple modems (shown in the
illustration) to ensure sufficient ventilation for heat dissipation
Mount the Megabit Modem on a wall using the two screws included with the modem.
12 Megabit Modem 400F, 500L, 600F, and 700F User Manual
Chapter 2: What You Need To Start
Phone Service
If you get phone service with your data service, you need the following:
• S1 Network Interface Device (or other POTS splitter) installed by your service provider
• RJ-11 phone jacks for phone service
The POTS splitter is a device that separates data transmission from ph one ser vice. After
installing the POTS splitter, connect separate jacks for data and for phone service. Ensure that
your service provider indicates which jacks are for data and which jacks are for phone service.
WHAT YOU NEED FROM YOUR SERVICE PROVIDER
This section lists the information you need to configure system settings an d sessions for the
modem. Contact your service provider for this information. Use the worksheets, provided in
Appendix C on page 107, to record your configuration information. When you b e gin to
configure the modem in Chapter 4 on page 23, the procedures refer you to the proper table for
the configuration information that you recorded.
1 System mode (WAN connection for the sessions between the modem and the service
provider): PPP over ATM or Bridge/Router RFC 1483
2 If Bridge/Router:
• Configure as a Bridge only, as a Router only, or as a Bridge and Router.
• If Bridge or Router, choose LLC or VC-MUX encapsulation.
• If Router, choose the version of and direction for RIP (RIP1, RIP2, or RIP1
compatible).
• If Bridge, select whether or not to enable Spanning Tree.
3 If PPP over ATM and using CHAP, identify CHAP authentication name.
4 Session addre ss for Ports 1 through 32 (WAN c onfiguration):
• ATM VPI and ATM VCI (specified for each session)
• when using fixed IP addresses, IP address specified for each session by the
service provider
• for PPP system mode, Login Name and Login Password (specified for each session)
For more information about the configuration ch oices listed above, s ee Chapter 10, “Technical
Reference” on page 85.
Megabit Modem 400F, 500L, 600F , and 700F User Manual 13
What You Will Choose
WHAT YOU WILL CHOOSE
Before configuring the modem, consider the options in the following “Configuration” section.
Ensure that you have the appropriate power cable for your facility as described below in the
“Power Cable” section.
Configuration
You can choose to use:
• Network Address Translat ion (NAT) prot ocol. This protocol incl udes both basi c NAT and
Network Address Port Translaton (NAPT). Basic NAT uses a one-to-one mapping of a
private IP address and a public IP address. NAPT uses a multiple-to-one mapping of
multiple IP addresses and their ports to a single IP address and its ports. For more
information about the NAT protocol, see “NAT” on page 87.
• Domain Name System (DNS) resolution. You must specify the IP address for a device to
serve as the DNS resolver. You can also specify a second IP address to designate another
device to serve as a secondary DNS resolver. The DNS device maps human-readable
addresses to IP addresses. For simplicity and ease of management, use DNS relay. DNS
relay allows the LAN hosts to configure the Megabit Modem as the DNS server. Depending
on the host sending the DNS message and what session it is assigned to, the Megabit
Modem will relay the message to the appropriate DNS server. For more information about
DNS resolution, see “DNS Resolution” on page 93.
• TFTP server for downloading sof tware updates to the modem. Yo u specify th e IP address,
subnet mask, and directory path (where software updates are located) for the device that
will be the TFTP server.
Power Cable
The Megabit Modem 400F, 500L, 600 F, and 700F are available with a variet y of power supplies
and power cords. When you order your mod em, choose one of the following as the last num ber
in the product part number (example: use 150-2122-7x for the 700F) for your order to ind icate
which power option you need:
• 2 indicates a power supply for International use and does not include a power cord.
• 3 indicates a power supply for North American use and includes a North American
power cord.
• 4 indicates a Universal power supply and includes a European power cord.
• 5 indicates a Universal power supply and includes a UK/Ireland power cord.
14 Megabit Modem 400F, 500L, 600F, and 700F User Manual
INSTALLING THE MODEM
The Megabit Modem is easy to install by:
• attaching the four adhesive-backed feet
• setting the MDI/MDI-X switch
• connecting a cable from the modem to a PC or an Ethernet hub for LAN service
• connecting a phone cord from the modem to a wall phone jack for DMT ADSL Internet
or other types of WAN services
• connecting a power cable to a local power outlet
Perform the installation on the following pages (see “Requirements For The Installation Site”
on page 10 to determine where to place modems). Use the parts listed below in the installation
procedures.
Part Function
Installation Kit
Rubber feet (four) Attaches to the base of the modem.
Black cable Connects the modem 10/100BASE-T connector to the LAN through a hub
or to a PC NIC. This cable is a straight-through Category 5 cable.
Grey cord Connects the modem ADSL connector to the RJ-11 wall jack with DMT
ADSL service for access to the Internet or other types of WAN applcations.
Power cable Connects the modem POWER connector to the local power source. Power
supply optionally has a power cord. (See “Power Cable” on page 14 for
selection options.)
3
Not In Installation Kit (in ship box)
Grey cable and
adapter
Megabit Modem 400F, 500L, 600F , and 700F User Manual 15
Connects the RS-232 MGMT port to an ASCII terminal or a PC running
terminal emulation software. Adapter assembly connects to a DB-9
connector on the PC. Then, one RJ-45 connector installs in the adapter and
the other connector into the console port on the modem.
Attaching the Feet
ATTACHING THE FEET
Attach each of the four adhesive-backed rubber feet to a footprint recess on the bottom of
the modem.
16 Megabit Modem 400F, 500L, 600F, and 700F User Manual
Chapter 3: Installing the Modem
SETTING THE MDI/MDI-X SWITCH
Using the MDI/MDI-X switch, the Megabit Modem can communicate with a device on the
LAN that is either MDI or MDI-X without having to change the cable (a straight-through cable
is supplied with the installation kit).
Set the switch for the 10/100BASE-T port to either:
• MDI-X when you are connecting to a device with a MDI port such as a PC with an
Ethernet NIC
• MDI when you are connecting to a device with a MDI-X port such as a hub, repeater,
bridge, or router
For connection to
devices such as
a PC
MDI-X
For connection to
MDI
devices such as
a hub
10/100BASE-T
Megabit Modem 400F, 500L, 600F , and 700F User Manual 17
RS232 MGMTMDI MDI-X
ADSL POWER
Installing Cabling
INSTALLING CABLING
Install the black cable for the 10/100BASE-T LAN connection, the grey phone cord for the
ADSL port WAN connection, and the power cable to the power connector (cable specified on
page 14).
.
Megabit Modem
To power
outlet
PC, hub or other
network device
Wall jack with DMT ADSL
service
Switch
MDI MDI-X
10/100BASE-T port
10BASE-T
RS232
M
GMT
RS-232 MGMT port
(600F and 700F only)
ADSL port
Power
connector
D
S
L
P
O
W
E
R
18 Megabit Modem 400F, 500L, 600F, and 700F User Manual
Chapter 3: Installing the Modem
1 After you have set the MDI/MDI-X switch to the correct position, connect the black cable
from the modem 10/100BASE-T port to your PC or hub.
2 Connect the grey phone cord from the modem ADSL port to the ADSL wall jack. If your
installation requires a splitter or microfilter, refer to the manufacturer’s documentation for
further instructions.
3 Connect the power cable from the modem power connector to a power outlet.
If you need pinouts fo r the ADS L and 10 /100BAS E-T connec tors , see “Connector Pinouts” on
page 101. For information on how to use the RS-232 m a nagement port for maintenance, see
“Using the RS-232 Management Port” on page 80.
Megabit Modem 400F, 500L, 600F , and 700F User Manual 19
Setting Up AD SL Service
SETTING UP ADSL SERVICE
The service provider sets up the ADSL parameters for your service. The modem must have
the ADSL SYNC LED lit before you can connect sessions with your service provider. Verify
SYNC in the following section, “Checking LED Indications.”
CHECKING LED INDICATIONS
The table below describes LED indications for all operational modes. LEDs on the modem front
panel prov ide continual status at- a-glance for network and modem connections.
LED State Description
PWR On green Modem has power.
Off Modem does not have power.
LAN
LINK On green A PC, hub, or other network device is connected to the modem
Off No device is connected to the modem 10/100BASE-T interface.
TX Flashing green Modem is transmitting data to devices on the LAN.
Off Modem is not transmitting data to the LAN.
RX Flashing green Modem is receiving data from devices on the LAN.
Off Modem is not receiving data from the LAN.
SYNC On green ADSL transceiver is synchronized and in normal operation mode.
Flashing green ADSL transceiver is in a start-up sequence.
Off ADSL modem transceiver is not detecting a transceiver at the far end.
TX Flashing green Modem is transmitting data to the service provider.
Off Modem is not transmitting data to the service provider.
RX Flashing green Modem is receiving data from the service provider.
Off Modem is not receiving data from the service provider.
MAR On green ADSL margin is at or above the value set by the service provider.
Off ADSL margin is below the value set by the service provider.
OH On yellow Telephone receiver is off hook.
Off Telephone receiver is on hook.
10/100BASE-T interface.
ADSL
20 Megabit Modem 400F, 500L, 600F, and 700F User Manual
Loading...