The Cisco 3662-AC-CO supports central office SONET/SDH operations management interfaces, as well as async and X.25 interfaces on the same platform. In addition, competitive local exchange carriers (CLECs) can use the Cisco 3662-AC-CO in their numerous points of presence (POPs) or central office (CO) co-locations for digital subscriber line access multiplexers (DSLAMs), voice switches, and transmission operations networking.
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