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NT1-M Serial to Ethernet Super Network Port RJ45 Interface TTL Level Serial Device Modbus Gateway
[Introduction]：NT1-M Serial to Ethernet Pin Module is an Ethernet module (also known as "super network port") that realizes TTL serial port data ⇌ Ethernet data transmission. The product comes with an RJ45 interface and a full network port package. It can meet the networking functions of various TTL level serial devices and MCUs.
| No. | Pin | Description |
| 1 | RXD0 | NC, burning interface, no need to be suspended |
| 2 | TXD0 | NC, burning interface, no need to be suspended |
| 3 | BOOT | NC, burning interface, external pull-up is recommended |
| 4 | RST | Connected to chip reset pin, pull down for more than 100uS to take effect, external pull-up is recommended |
| 5 | 485_EN | 485 enable pin |
| 6 | RELOAD | Restore factory settings, pull down to take effect |
| 7 | STATE0 | PHY connection indication, pull down after negotiation is completed |
| 8 | RXD | User serial port, 3.3V TTL level |
| 9 | TXD | User serial port, 3.3V TTL level |
| 10 | GND | Power + signal ground |
| 11 | VCC | Power positive pole, recommended power supply capacity 300mA@3.3V or more |
| 12 | STATE1 | Physical data indicator, level jumps when there is data |
| 13 | LED0- | LED0 indicator negative pole, can be connected to 7-pin to indicate STATE0 signal |
| 14 | LED0+ | LED0 indicator positive pole, connected to 3.3 power + |
| 15 | LED1+ | LED1 indicator positive pole, connected to 3.3 power + |
| 16 | LED1- | LED1 indicator negative pole, can be connected to 7-pin to indicate STATE1 signal |