The ARS is universal rotor interface. It can be connected to any rotor and provides a 10 bits ADC. A large list of log, contest, satellite tracking, and EME. programs are supported •Three relays left / right / Brake (brake only for some rotator models required) Each relay with 2 contacts up to 5A/220V. •One A/D convertor with 10-bit resolution •PC-Interface with 25 pin Dsub connector for parallel interface