Data rates beyond 2 Mbit/s offered - without the cost of E3/T3

10 September 2003 Tel Aviv Lightwave Europe -- How can a mid-field of bandwidth be provided without obliging customers to jump to more expensive and oftentimes wasteful E3/T3 lines? RAD Data Communications believes it has answered this taxing question.

10 September 2003 Tel Aviv Lightwave Europe -- The bandwidth gap between E1/T1 (which provide 2.048 and 1.544 Mbit/s respectively in bandwidth) and E3/T3 services (which provide 34 and 45 Mbps) presents an emerging challenge for carriers and enterprise networks alike.

How can a mid-field of bandwidth be provided without obliging customers to jump to more expensive and oftentimes wasteful E3/T3 lines? At Telecom World 2003 in Geneva, RAD Data Communications says it will unveil new product solutions that will bridge that ever-widening gap using multiple SHDSL and E1/T1 lines.

Managed Inverse Multiplexer Provides Increased Bandwidth RAD's IMXi-4 is a managed inverse multiplexer that can transmit a single high speed data channel over up to either four standard 2-wire SHDSL links or E1/T1 lines. A built-in Ethernet bridge/router connects 10/100BaseT LANs to the device.

"The IMXi-4 spans the bandwidth gap between E1/T1 and E3/T3 by providing increased bandwidth where services higher than E1/T1 are unavailable or unaffordable," says Amir Karo, RAD's Director of Product Management . The product's adaptive bandwidth supports extended transmission ranges over SHDSL lines.

High Speed ATM IAD that Supports Ethernet and IP Services The LA-104, the latest addition to RAD's Link Access family, is a high speed ATM IAD that supports Ethernet and IP services. Using bonding over up to four standard SHDSL links, it provides up to 8.2 Mbps in bandwidth while enabling backup between links for better service levels.

"This is an ideal solution for service providers seeking an innovative way to offer high speed LAN-based access services, such as inter-office connectivity, Internet access or IP VPN, over to small and medium-sized businesses," says Karo. Like the IMXi-4, the LA-104 also provides adjustable bandwidth to support transmission beyond SHDSL's regular reach. "These same cost-effective solutions can also benefit cellular operators in backhauling applications from radio sites of 2G/2.5G and 3G networks."

RAD adds that it will soon introduce additional product solutions that will offer up to eight E1/T1 lines of bandwidth.

"Fast Payback"
RAD has also announced the launch of its "Fast Payback" Programme, providing enterprises with a cost-effective solution for voice and data integration over LAN Extension Service (LES) circuits and E1 leased lines.

Payback is typically achieved in months and visitors to RAD's UK website can calculate how quickly they would realise a return on investment with the programme using the "Fast Payback calculator".

The programme has been designed for enterprise customers that want to save on voice costs by running voice over their data networks and for those that are preparing their data networks to be IP Telephony enabled.

The company says the solution is ideal for those looking to avoid the expense and complexity of installing an IP card for their existing PABX, upgrading their PABX software and reconfiguring their equipment, whilst preserving their investment in the PABX.

The "Fast Payback" Programme is based on RAD's industry-leading Time Division Multiplexing over Internet Protocol (TDMoIP) technology, which allows E1 circuits to be transported transparently over Ethernet, MPLS and IP networks. This simple solution eliminates the need to change voice signalling protocols, thereby enabling seamless voice integration.

RAD's TDMoIP product range includes the IPmux product family and the Vmux product line, which supports voice compression for lower bandwidth links. All solutions employ external devices, avoiding the need to tamper with the PABX.

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