The Allied Telesis AT-SBx81GS24a line card provides 24 SFP Gigabit ports, offering a host of flexible connectivity options. The ability to aggregate a widely distributed network where access devices may be in remote buildings is an excellent solution for multi-building campus environments. The option to mix short-haul and long-haul SFP optical devices in a single line card allows maximum flexibility in the placement of access switches, whether they are located locally or even city-wide.