[Interface Signal]：Serial Port (RS485/RS232), Ethernet Port (RJ45)
[Operating Voltage]：DC 8-28V
[Network Protocols]： IP, TCP/UDP, IPv4, ICMP, APR, DHCP, DNS, HTTP, MQTT
[Installation Method]：positioning hole installation
[Size]：198*109*26.5mm
[Product weight]：520 ± 5g
[Introduction]：The NB144S-V2 is a second-generation 4-port serial server developed by Ebyte. It integrates a TCP/IP protocol stack, enabling bidirectional transparent transmission of serial-to-Ethernet data, Modbus protocol conversion, and serial device cloud connectivity. Supporting host computer configuration, it is widely used in industries such as computer room monitoring and environmental monitoring. It is coated with conformal coating, offering anti-mold, anti-humidity, and anti-salt spray properties.
Official Store| project | interface | illustrate |
| power supply | Wire terminal | DC 8~28 V, power cannot be input simultaneously; |
Wire terminal: 5.08mm*2 Phoenix terminal; | ||
| DC female | DC female connector: straight-in round hole, outer diameter 5.5mm, inner diameter 2.0mm; | |
| Network port | RJ45 | 10/100M |
| Working Mode | TCP Server、TCP Client、UDP Server、UDP Client、HTTP Client、MQTT Client（默认 TCP Server） | |
| Socket Connection | TCP server single serial port supports up to 5 client connections | |
| Network Protocol | IP、TCP/UDP、IPv4、ICMP、APR、DHCP、DNS、HTTP、MQTT | |
| How to obtain IP | DHCP, static IP (default static IP) | |
| Domain name resolution | support | |
| Configuration method | Configuration tools, AT commands | |
| IP address | Customizable (default, 192.168.3.7) | |
| Local Port | Customizable (default, channel 1 to channel 8: 8001-8008) | |
| Subnet mask | Customizable (default, 255.255.255.0) | |
| Gateway | Customizable (default, 192.168.3.1) | |
| Serial port buffer | 8×3k Byte | |
| Serial port packaging mechanism | 1024 Byte | |
| Serial port baud rate | 2400 to 115200 bps (default 115200) | |
| Data bits | 8 | |
| Stop bits | 1 (default), 2 | |
| Check digit | None (default), Odd, Even | |
| Installation | Positioning hole installation | |
| Working temperature and humidity | -40 ~ +85℃, 5% ~ 95%RH (non-condensing) | |
| Storage temperature and humidity | -40 ～ +105℃, 5% ～ 95%RH (non-condensing) | |