Extension unit for providing power supply, repeater and splitter dunctions19' rack mount unitLong life, built-in temperature regulated fan for low-noise operationFour built-in 125W power suppliesFour independent DCS-LAN repeater ports Increase system capacity: An extension power supply for increasing either the DDS 5900 or the DCS 6000 systems capacity. The power supply splits one DCS-LAN chain into 4 chains while adding regeneration of the signal and 125 watts of power to each of the four chain.Redundancy and Reliability: As each repeater port is isolated, system redundancy and reliability is improvedExtension unit for providing power supply, repeater and splitter functions19'' rack mount unitLong lofe built-in temperature regulated fan for low-noise operationFour built-in 125W power suppliesFour independent DCS-LAN repeater ports