Technical documentation for RTCU-D4 - Logic IO

Technical documentation v 1.07, RTCU-D4Logic IOwww.logicio.comExternal connectionsAll connections to external equipment (except the GSM antenna) are done using screwterminals, located at the top and bottom of the unit (see graphical view). Each terminal isnumbered. The number is visible on the plastic top cover.Power supplyThe RTCU-D4 unit must be supplied with a DC voltage between 8 and 36 Volt. Theconnections are as follows:8..36 VDC Supply:The 8..36 VDC supply is connected to the DCin and GND terminals on the unit (These arefound to the left, in the bottom row of screw terminals)Terminal Number DescriptionGND 5 Negative (-) connection from DC power supplyDCin 6 Positive (+) connection from DC power supplyGND 7 Negative (-) connection from DC power supplyAnalog InputsThe analog inputs are all voltage inputs, with a range from 0V to 5V DCThe input signal is connected between AIn and AGND. AGND must be connected to thereference of the connected equipment.Terminal Number DescriptionAGND 8 Analog groundAI1 9 Analog input number 1AI2 10 Analog input number 2AI3 11 Analog input number 3AI4 12 Analog input number 4AGND 13 Analog groundPage 4 of 10Logic IO ApS. Ph: (+45) 7625 0210Holmboes Allé 14 Fax: (+45) 7625 02118700 Horsens Email: info@logicio.comDenmarkwww.logicio.com / www.rtcu.dk