CS901 module is shown with the digital encoder SM5262 (the same with the PT2262) consisting of eight remote control transmitter, key SA1 ~ SA8 and diode VD1 ~ VD13 matrix input circuit composed of eight for the eight coded remote control transmitter input circuit . As SM5262 7 to 13 feet for the address / data common terminal, if used as a data input, the circuit has six data input, and when it all as a data input, composed of a total of 26 = 64, ie 64-channel remote control transmitter. This circuit uses only four of which D1 ~ D4 input, which can be composed of 24 = 16 remote control transmitter, the actual use of the circuit is only half of it, that is eight, eight-way remote control to form a transmitter. The eight digital input code transmitters were: SA1-0001, SA2-0010, SA3-0011, SA4-0100, SA5-0101, SA6-0110, SA7-0111. SA8-1000, the remaining unused code 1001-1111.