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A DC-UPS is an uninterruptible power system that takes in primary power (usually utility AC) and outputs DC voltage while providing backup power from the integrated batteries in the event the incoming (utility AC) power is lost.
SEI's Power over Ethernet Midspans inject 48 Vdc power on to Ethernet cabling to power end-point devices such as IP phones, Wireless Access Points, cameras and other IP applications.
SEI is the leading supplier of uninterruptible power systems and NT1s for Digital Centrex (ISDN) customer premises equipment. All SEI units come fully assembled and ready to mount!