Ebyte NB124S Modbus RTU to TCP gateway rs485/232/422 to Ethernet network port module industrial-grade
[Interface signal]：RS485/RS422/RS232
[Product size]：173x95x26.5mm
[Installation method]： positioning hole installation
[Product weight]：360g±5g
[Introduction]：NB124S is a common industrial-grade 2-way serial port server that supports DC power supply. The shell adopts three-proof coating, which is Anti-Fungal, Anti-Humidity, and Anti-Salt Spray. It integrates the TCP/IP protocol stack inside, which can realize two-way transparent transmission of data from the 2-way serial port to the Ethernet port. The device has the function of ModBus gateway, supports Modbus TCP to RTU, and supports automatic polling.
| No. | Name | Function | Description |
| 1 | RS232-2 | Serial port 2-RS232 | Standard DB9 female head，2-TXD、3-RXD、5-GND |
| 2 | RS232-1 | Serial port 1-RS232 | Standard DB9 female head，2-TXD、3-RXD、5-GND |
| 3 | RS422-1-R+ | Serial port 1-RS422 -R+ | 3.81mm Phoenix terminal |
| 4 | RS422-1-R- | Serial port 1-RS422 -R- | 3.81mm Phoenix terminal |
| 5 | GND | Serial port 1 Ground | 3.81mm Phoenix terminal |
| 6 | RS422-1-T+/A | Serial port 1-RS422 -T+ Serial port 1-RS485 A | 3.81mm Phoenix terminal |
| 7 | RS422-1-T-B | Serial port 1-RS422 -T- Serial port 1-RS485 B | 3.81mm Phoenix terminal |
| 8 | RS422-2-R+ | Serial port 2-RS422 -R+ | 3.81mm Phoenix terminal |
| 9 | RS422-2-R- | Serial port 2-RS422 -R- | 3.81mm Phoenix terminal |
| 10 | GND | Seria2 port 1 Ground | 3.81mm Phoenix terminal |
| 11 | RS422-2-T+/A | Serial port 2-RS422 -T+ Serial port 2-RS485 A | 3.81mm Phoenix terminal |
| 12 | RS422-2-T-/B | Serial port 2-RS422 -T- Serial port 2-RS485 B | 3.81mm Phoenix terminal |
| 13 | - | DC 8-28 V Negative pole | DC 8-28 V，5.08mm Phoenix terminal； |
| 14 | + | DC 8-28 V Positive pol | DC 8-28 V，5.08mm Phoenix terminal； |
| 15 | DC-IN | DC power input | DC 8-28 V； OD 5.5mm，ID 2.0mm straight plug-in round hole； |
| 16 | Ethernet | Ethernet interface | Standard RJ45 Ethernet interface |
| 17 | Reload | factory reset button | After long pressing for 5s, NET led is always on for 5s, and the device restores to factory settings |