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实用新型
CN202103647U 一种继电保护数据转换器 失效 - 权利终止

一种继电保护数据转换器
摘要：
本实用新型涉及一种继电保护数据转换器。一种继电保护数据转换器，包括232电平转换电路，232电平转换电路的信号端连接有485电路的信号端，232电平转换电路的信号端连接有232接口，485电路的信号端连接有485接口，232接口的IRIG-B码信号输出端和485接口的输入端连接有抗干扰防雷电路的信号输入端。本实用新型通过485电路来控制数据的输入和输出，IRIG-B码传输通过防雷滤波回路将信息送至RS-485，将+5V电源引至光数据转换器RS-232为其提供电源。实现了直接对EIA-232串口的光电转换器进行数据转换，也能实现继电保护装置的IRIG-B码对时信息的传输。
摘要（英）：

The utility model relates to a relay protection data converter. The relay protection data converter comprises a 232 level converting circuit; the signal end of the 232 level converting circuit is connected with the signal end of a 485 circuit and is connected with a 232 interface; the signal end of the 485 circuit is connected with a 485 interface; and an IRIG-B (Inter-range Instrumentation Group-B) code signal output end of the 232 interface and an input end of the 485 interface are connected with the signal input end of an anti-interfering lightning protection circuit. The data input and the data output are controlled through the 485 circuit; and an IRIG-B code transmits information to a RS-485 (Recommend Standard-485) through a lightning protection filtering loop, so that +5V power supply is guided to an optical data converter RS-232 (Recommend Standard-232), and provides power supply for the optical data converter RS-232. Data conversion is directly performed for a photoelectric converter of an EIA-232 (Electronic Industries Association-232) serial port, and the transmission of time information by the IRIG-B code of a relay protection device can also be realized.

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