Interfaces RS-232C / Bi-directional parallel / RS-485 / USB / Connect-It™Paper dimensions 82.5 ± 0.5 x diameter 83 mm {3.25 ± 0.02 x diameter 3.27"}Reliability MTBF 180,000 hours MCBF 37,000,000 linesOverall dimensions 186 x 298 x 195 mm (W x D x H) ...