def __init__(self, name, experiment, description=''):
        super(Vaunixs, self).__init__(name, experiment, description)
        self.motors = ListProp('motors', experiment, 'A list of individual Vaunix signal generators', listElementType=Vaunix,
                               listElementName='Vaunix')
        self.properties += ['version', 'motors']
        num = self.initialize()
        self.motors.length = num
        self.motors.refreshGUI()