Signals are given both by the main line of the indicator and auxiliary ones. The trend is considered weak if the indicator line is below the 20% level, a strong trend is the line above the 40% level. The signal to open a deal is the intersection of the +Di and -Di lines. If after crossing +Di is above -Di - a signal to open a long position, below - short. The intersection of +Di and -Di with ADX above 20% is an exit from the flat, with ADX in the range of 40-60% - a possible change in the direction of the trend.