Power Supply Description; Led Indicator - 3onedata NP301 User Manual

RS-232 side is DB9 male. The PIN definition is as follows
Serial number
1
Name
NC

2.3 Power supply description

9～48VDC wide voltage power input, the consumption is about 1.4W

2.4 LED Indicator

NP301 has 3 LED Indicator, include Power, Link/ACT, Rx/Tx, the meaning is as follows:
Power input steadily: Power LED bright all along
Network connect naturally: Link/ACT LED bright all along
Serial interface has data receive: Rx/Tx LED blinking
2 3 4
RxD TxD DTR
Shenzhen
5 6
GND DSR
4
3onedata Technology Co., Ltd
7 8 9
RTS CTS NC