Cisco Systems on Tuesday took the wraps off two new product lines. The Cisco Global Site Selector 480 is essentially a $20,000 security blanket that companies use to back up a computer network and ensure it doesn't lose any data after a cataclysmic event. The company also introduced less expensive versions of its content service switches, which manage traffic on a computer network. The new CSS11501 costs about $11,000 and is meant for smaller or midsized businesses. Cisco will continue selling more sophisticated versions of the same product, which costs between $17,000 and $26,000 each.