ADSL MODEM

Broadband Internet Glossary

Broadband Internet — ADSL Modem

 

 

 

 

 

 

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Information on ADSL Modem

In the context of an ADSL broadband Internet connection, the ADSL modem is situated in the customer's premises, and is used to encode signals sent over the ADSL channel to the ISP and decode signals received from the ISP. The ADSL modem provides different data rates on the uplink and downlink; usually a higher speed is provided on the downlink.
     Modem is a contraction of modulator/demodulator, which transforms a digital bit stream into an analogue signal (in the modulator), and vice versa (in the demodulator) so that the digital signal can be passed over an analogue channel.
     An advantage of ADSL is that the ADSL modem is powered from the same copper pair as carries the data, which means that an ADSL link can operate even if the mains power fails.

Manufacturers of ADSL Modem

Brands of ADSL Modem include:
  • Netgear.  Products from Netgear include Ethernet Bridge, NAT Router, Broadband Switch, Ethernet Router and Wireless Router
  • Netcomm.  Products from Netcomm include Ethernet Router, Wireless Router, ADSL Router, Wireless DSL Access and Broadband Router
  • Dlink.  Products from Dlink include xDSL Modem, Bridge, NAT VPN, VPN and NAT Firewall


Other topics in our resources on Broadband Internet related to ADSL Modem include: 
 
  • ADSL Broadband (Asymmetric Digital Subscriber Line Broadband)
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