The invention discloses a signal conversion apparatus of a traffic control machine. The signal conversion apparatus comprises a rectangular machine housing and a signal conversion circuit board arranged in the machine housing, wherein a front panel of the rectangular machine housing is provided with an LED indicator lamp; an AC220V power interface is arranged on one side of a rear panel; an RJ45 communication interface is arranged on the other side of the rear panel; a DB37 output interface and an ACCESS interface are arranged in the middle of the machine housing; the signal conversion circuit board comprises a voltage transformation module, a main control module as well as an RS485 drive circuit, an on-off output circuit, an LED display circuit and a voltage stabilization circuit which are connected with the voltage transformation module and the main control module; the RJ45 communication interface, the DB37 output interface, the LED indicator lamp and the voltage transformation module are connected with the RS485 drive circuit, the on-off output circuit, the LED display circuit and the voltage stabilization circuit respectively; and the ACCESS interface is connected with the main control module. According to the signal conversion apparatus, a wireless geomagnetic processing host can be seamlessly connected with the traffic signal control machine.
Signal conversion apparatus of traffic control machine
2016-01-13
Patent
Electronic Resource
English
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