Quad Ima/uni Phy Device Networks Corporation

The MT90221 device is targeted to systems implementing the ATM FORUM UNI specications for T1/E1 rates or Inverse Multiplexing for ATM (IMA). In the MT90221 architecture, up to 4 physical and independent T1/E1 streams CAN be terminated through the utilization of off-the-shelf, traditional T1/ E1 framers and LIUs. This allows ATM designers to leverage previous T1/E1 design experience, hardware and software implementation, and to select the best T1/E1 framer for the required application. The MT90221 device provides ATM system designers with a exible architecture when implementing ATM access over existing and deployed trunk Interfaces allowing a migration towards ATM service technology. In addition to allowing for the design of ATM UNI specications for T1/E1 rates, the MT90221 device is compliant with the ATM FORUM IMA specications for controlling IMA groups of up to 4 trunks in a single chip. The MT90221 CAN be congured to operate in different modes to facilitate the implementation of the IMA function at both CPE and Central Ofce sites. For systems targeting ATM over T1/E1 with IMA and UNI operating simultaneously, the MT90221 device provides the ideal architecture and capabilities. By Mitel
MT90221 's PackagesMT90221 's pdf datasheet

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