... RF, ASI and IP, ASI and IP output 2. Digital receiver decoder, IRD, up to 12 channels SMP180 is a 1RU ... any headend systems for content delivery and re-distribution. ( Digital receiver decoder, IRD, up to 12 channels )Features: Variety of inputs ... Temperature-40o to 65oCRelative Operating Humidity<95% Digital receiver decoder, IRD, up to 12 channels Digital receiver decoder, IRD, up to 12 channels