Patent ID: 6157638
Filing Date: 2000-12-05
Classification: H04L

Abstract:
A packet switch with high speed interfaces for transporting OC-48 input data streams, said switch comprising:a plurality of input modems coupled to a number of Low Voltage Differential Signaling (LVDS) input lines, said number of LVDS input lines comprising at least sixty-four input groups, each input group having at least four input bits, each input bit comprising two LVDS input lines;a plurality of input rate change devices coupled to said input modems, said input rate change devices performing rate conversions in which two four-bit groups are processed into an eight-bit parallel data structure;an input bus coupled to said input rate change devices, said input bus being configured as a 128.times.8 network, wherein said input bus supports at least sixty-four channels which are at least eight bits wide;a high speed switch coupled to said input bus, wherein said high speed switch comprises at least eight 128.times.128.times.1 non-blocking switches and operates at a rate greater than 350 MHz;a output bus coupled to outputs of said high speed switch, said output bus being configured as a 128.times.8 network, wherein said output bus supports at least sixty-four channels which are at least eight bits wide;a plurality of output rate change devices coupled to said output bus, said output rate change devices performing rate conversions in which an eight-bit parallel data structure is processed into two four-bit groups; anda plurality of output modems coupled to said output rate change devices, said output modems being coupled to a number of LVDS output lines, said number of LVDS output lines comprising at least sixty-four output groups, each output group having at least four output bits, each output bit comprising two LVDS output lines.