PairGain Technologies Inc has announced that it has launched its first in a series of rate-adaptive asymmetrical digital subscriber line ADSL products. The new range enables a single platform to offer asymmetric and symmetric high-speed connections. Rate adaptive technology automatically adjusts data transfer speeds to the highest rate possible, depending on transmission distance and line quality. The new Megabit Modem CRA is a RADSL modem for the customer site and transfers at up to 3.2Mbps downstream and 1Mbps upstream over a single copper telephone line. It reaches distances of up to 7.6km and includes a 10Base-T Ethernet port for connection to the customer’s personal computer or network as well as network management software. With the addition of the S1 NID ADSL Splitter, the unit will also support simultaneous voice and data over a single telephone line. The headend unit, the Megabit Modem CRA-C is a standalone RADSL modem that installs at the telephone company, PTT or alternative carrier’s central office or exchange, and supports downstream data rates of up to 3.2Mbps and upstream rates of up to 1Mbps, connecting to a Megabit Modem CRA at the subscriber end. In order to mix the new PairGain units with xDSL products already installed and not from PairGain, the company has also launched the CRA-220S modem card which plugs into a 220-type chassis. This supports downstream rates of up to 3.2Mbps and upstream rates of up to 1Mbps when used in conjunction with the Megabit Modem CRA. The new S1 NID ADSL Splitter divides the ADSL and the POTS signals and works in conjunction with the Megabit Modem CRA at the subscriber end. The Megabit Modem CRA and CRA-C, CRA-220S as well as the S1 NID ADSL Splitter are all available from the company now.
