3Com Corp., Santa Clara, CA, has selected San Diego, CA-based Applied Micro Circuits Corp.s (amcc)

3Com Corp., Santa Clara, CA, has selected San Diego, CA-based Applied Micro Circuits Corp.`s (amcc) sonet transceivers for use in the company`s CoreBuilder 7000 high-function switch and CoreBuilder 9000 enterprise switch for atm and Gigabit Ethernet high-capacity backbone networks. amcc`s S3028 transceiver and S3027 clock and data-recovery unit are used to support sonet OC-12 (622-Mbit/sec) data transmission in 3Com`s CoreBuilder 7000 switch, which supports data throughput to 5 Gbits/sec, and CoreBuilder 9000 enterprise switch, which supports throughput to 100 Gbits/sec. amcc`s S3029 155-Mbit/sec quad transceiver is used for the Core Builder 9000 enterprise switch`s OC-3 (155-Mbit/sec) solution.