The Catalyst 8540 ATM Uplink with Enhanced Gigabit Ethernet Module is ideal for supporting high-speed ATM backbone applications that require non-blocking, wire-speed performance. This interface module has one ATM uplink port and one Enhanced Gigabit Ethernet port. The ATM Uplink with Enhanced Gigabit Ethernet Module is supported by the Catalyst 8540 platform, a high-end multiservice switch that allows customers to have integrated Layer 3 and ATM switching in one high-performance platform.This module features a Single Mode Fiber Intermediate Reach.