The DTSY23S three-phase support switch STS prepayment mode and postpaid mode. The meter is developed according to IEC62055-31 and STS certified. It measures active/ reactive energy and bills by credit or amount. It can be standalone or used with wired/RF/PLC UIUs. An optical port and an RS 485 port are incorporated. It features pluggable COM modules such as RF, GPRS/3G & PLC, DLMS/COSEM compliance and multiple auxiliary I/O ports.
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