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Megabit Modem 400F User Manual 1
1
ABOUT THE PRODUCT
You have purchased the ADC Megabit Modem 400F 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.
The modem provides this service over a single-pair
telephone line with downstream ADSL transmission up
to 7.552 Mbps. The upstream ADSL transmission is up
to 928 kbps. You can also receive telephone service over
the same single-pair line as your data.
The Megabit Modem 400F uses ATM over DMT ADSL technology to provide this high-speed
transmission between the modem and the service provider. Asynchronous Transfer Mode
(ATM) provides transmission of fixed-size cells over preestablished connections for a network
interface that is predetermined and always in place. The Asymmetric Digital Subscriber Line
(ADSL) provides rate-adaptive transmission which means that the service provider can deliver
the best possible transmission rate to you based on distance and line conditions, in addition to
providing phone service to you over the same single-pair line.
The Megabit Modem 400F 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 configure the modem, launch a Web browser on your PC and load the Megabit Modem
Configuration and Management Tool Web pages that guide you through configuration. Use
the Web page called EasySession™ to configure up to 32 simultaneous sessions with service
providers. You can also configure other system parameters and monitor ADSL, LAN, and other
networking functions using the Web pages.
LEDs on the modem front panel provide continual status at-a-glance for network and modem
connections.
LAN
ADSL
PWR
LINK
TX
RX
SYNC
TX RX MAR
MEGABITMODEM 420F
COL