DSLAM


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DSLAM

DSLAM

(DSL Access Multiplexer) A network device that aggregates multiple (telephone) DSL lines onto a high-speed channel such as Gigabit Ethernet or ATM in order to gain access to the Internet. Operating at layer 2 of the OSI model, DSLAMs separate phone and data signals and direct them to the appropriate networks. Although a DSLAM is often located in a telco central office (CO), it may also reside in a multi-premises facility such as a hotel or office building. See DSL, OSI model and central office.
References in periodicals archive ?
According to Lanode, the Tahoe DSLAM is constructed around a Linux kernel and is able to support layer 2 bridged services, with Layer 3 routed services, with NAT, firewall and access control lists, and full VLAN support.
Gartner Group estimates that 20 million lines of DSLAM will be added worldwide in 2003.
The V-16 IP DSLAM features native packet architecture for simple, cost-effective provisioning and easy migration to next generation Ethernet-over-copper services and new broadband wireless LAN applications.
Asia Pacific has been the most exciting and dynamic region in terms of DSLAM revenue market share, leading with 45%.
Service providers face two very tough issues with regards to delivering DSL that remote DSLAMs overcome," said Kathie Hackler, vice president and chief analyst for the Telecom Group at Gartner Dataquest.
Zhone's Raptor 50 and 100 Compact DSLAM products extend the requisite remote DSLAM capabilities, such as line-power and flexible uplink options, as well as integrated IP and VLAN support, but they do not fit neatly within non-Zhone solutions.
We are seeing phenomenal growth in IP DSLAMs and broadband loop carriers, both of which will serve as the primary platforms for the delivery of triple-play services in the years to come.
Aggregating both GbE and ATM on the same wavelength provides a migration path for traditional DSLAMs as well as supporting IP DSLAMs at very low cost points compared to alternative approaches.
There will be continued movement away from the standalone DSLAM towards more multi-service access platforms over the next few years.
The IES-5000 is ZyXEL's flagship product for FTTx scenarios and is a chassis-designed IP-based DSLAM that has a 10-slot 6.
A cost-effective data mapping solution for IP DSLAM and 3G BTS backhaul.