Description:The DNR-12-1G is a compact (3U), rugged Ethernet I/O rack. Though the backplane electronics are identical to our popular PowerDNA Cube series, the RACKtangle DNR series provides two Gigabit Ethernet (100/10 Base-T compatible) interfaces and slots for up to 12 I/O boards. Front-loading slots allow the I/O boards to be quickly and easily installed and removed. These ca-pabilities dramatically increase performance and simplify system reconfiguration when necessary. The backplane within the rack contains no active electronic components, ensuring the rack it-self has an almost unlimited MTBF. It also means that all active components are on easily replaceable I/O modules, offering an extremely short MTTR in critical applications.DNR series I/O boards are electronically identical to the DNA boards developed for use in UEIs I/O Cubes. The DNR-12-1G is supported by a rap-idly growing complement of I/O boards, currently number-ing greater than 30. The DNR RACKtangle chassis is ideall Specifications:Standard InterfacesTo Host ComputerTwo independent 1000Base-T Gigabit Ether-net ports (100/10Base-T compatible)Distance from host100 meters, max Other InterfacesOne USB 2.0 controller port, One USB 2.0 slave port.Config/GeneralRS-232, 9-pin DSyncCustom cable to sync multiple racksI/O Slots AvailableDNR-12-1G12 slotsData transfer and communications ratesEthernet data transfer rate20 megabytes per secondAnalog data transfer rateup to 6 megasample per sec (16-bit samples)DMAP I/O modeupdate 1000 I/O channels (analog and/or digital) in less than 1 millisecond, guaranteedProcessorCPUFreescale 8347, 400 MHz, 32-bitMemory128 MB (not including on-board Flash)Status LEDsPower supplies within spec, One second system heart-beat, Attention, Read/Write, Power, Communications ActiveEnvironmentalTemp (operating)Tested to -40 C to 70 CTemp (storage)-40 C to 85 CHumidity0 to 95%, non-condensingVibration (IEC 60068-2-64)10-500 Hz, 3 g (rms), Broad-band random (IEC 60068-2-6)10-500 Hz, 3 g http://www.ueidaq.comFax: (508) 668-2350Genera