Upgrade of systems of railway automatics and telematics not to do without replacement of certain types апаратуры on electronic analogues. The code travelling transmitter carries out function of the gauge number-code of sequences. At present существующии alternatives of the electromechanical transmitter are not up to the end fulfilled as assume entering of circuit changes or have ограниченичия in приминении. Despite одназначность to executed function and use in состяве relay апаратуры, to alternative transmitters are shown safety requirement and reliability same as for microprocessor systems. It dictates a choice of the scheme of construction. In article the electronic code transmitter which construction is considered allows to receive more высокии reliability and safety indicators thus without changing existing schemes of inclusion.