... system Units, entrance guard management.Remote Master User Manual:The remote master used to copy RC, working with remote control A, B, C three ... below1) press key5 one time, shows "input 1key to", then press the original remote 1key one time, the machine sounds "bee" a ... one time, then write the code infomation into new remote;3) adjust frequency: back to interface "remot copy", press key4 one time ...