TTL Modbus RTU Voltage Single Phase Power Module Smart Electric Power Meter (1600585737239)

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Price:$7.10
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Product Overview

Description





Specification




serial number
name
characteristic
Pin definition
Function description
1
L
enter
Live wire
Voltage channel sampling live wire input port
2
N
enter
Zero line incoming
Voltage channel sampling neutral input port
Digital port
3
ALARM
Output
Module alarm output pin
Module output alarm signal pin, CMOS output. Level: 3.3V
4
PF
Output
Pulse signal
Module pulse signal output pin, CMOS output. Level: 3.3V
5
TX
Output
Module serial port sending pin
Module serial communication data sending pin, CMOS output. Level: 3.3V
6
RX
enter
Module serial port receiving pin
Module serial communication data receiving pin, TTL3.3V level, with internal weak pull-up, 3.3V.
7
3.3V
enter
Module power
Module power supply input pin, working voltage DC3.3V
8
GND
Reference place
Module reference ground
Module power ground


















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0.0139 s.