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===Control system=== <gallery perrow=4 heights=250px widths=250px> File:44982 - 1992 control system game materials.png|The two controller boxes with the wiring diagram for the umbilical [https://www.frcarchive.com/index.php?q=post/view/44982] File:44981 - 1992 game materials.png|Diagram showing the length of the umbilical [https://www.frcarchive.com/index.php?q=post/view/44981] File:1413 - 1992 frc20 robot.jpg|The umbilical connector on the right side of [[frc20|team 20]]'s 1992 robot [https://www.frcarchive.com/index.php?q=post/view/1413] File:1551 - 1992 1992cmp frc-11 frc-78 frc-9 frc-99 frc148 frc190 match robot video.gif|Power being turned on at the beginning of a match [https://www.frcarchive.com/index.php?q=post/view/1551] </gallery> Unlike every year since, the 1992 control system was not wireless and offered no proportional control of motors. Four thick "umbilicals" were suspended above the field and connected the driver's controls to the robot. Two controllers with two double pole, double throw switches allowed the two driver-operators to control full-speed forward and reverse control of two motors each. 12 volt power supplies rated for 10 amps were wired directly into the two controllers and then up and back down the umbilical cords to the machines. Each switch would connect power from the power supplies directly to the motor wired to it's matching pins on the machine. Robots needed the matching connector for the umbilical in a position where it could be easily plugged and unplugged, and motors needed to be wired to specific pins to tie motor movement to the controller switches. Umbilical cables measured 23' 10" from the point at which they are suspended, meaning they would go taut towards the edges of the field while falling slack towards the center as well as tangling with the robots and each other. Controllers and tether connectors were color-coded with tape to keep track of which controllers controlled which tether. Available motors included two larger Delco motors, typically used in the drivetrain, and smaller Portescap gearmotors typically used in mechanisms. A 9-volt battery could also be used to power components of the robot as long as they did not cause tennis balls to move after the end of a match.
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