AUTOHELM ST7000 ST6000 TYPE CR Interface Box Z085 - 3015-038B Empty Case OnlyAUTOHELM ST7000 ST6000 TYPE CR Interface Box Z085 3015 038B Empty case ******* Description: All type CR systems are driven with a standard course computer and terminal board which interfaces to a type CR interface box (Z085). The same interface box is used for both 12V and 24V systems and can be functionally tested by using the following procedure. Type CR Interface Box PCB Circuit Description: The course computer clutch signal activates RLY1 which in