[Interface Signal]：Ethernet
[Serial Ports]：2
[Operating Voltage]：DC 3.0-5.5V
[Size]：89 x 49mm
[Product weight]：32.3 ± 1g
[Introduction]：The NS2-V2-TB Ethernet module test kit comes with a built-in USB to TTL converter (only one channel is built-in and can be switched via a jumper cap), which allows for quick debugging without an external converter. It also exposes the reset and factory reset pins for easy operation, and exposes all the module's functional pins for easy external debugging.
[Interface signal]：Ethernet
[Number of serial ports]：4
[Operating voltage]： DC 3.0-5.5V
[Size]：89*49mm
[Product weight]：32.3±1g
[Introduction]：The NS4-V2-TB Ethernet module test kit includes a built-in USB-to-TTL converter (only one channel is built-in, switchable via a jumper), enabling quick debugging without an external converter. The reset and factory reset pins are exposed for external buttons, and all module function pins are exposed for convenient external debugging.
[Interface signal]：Ethernet
[Number of serial ports]：8
[Operating voltage]：DC 3.0-5.5V
[Size]：89*49mm
[Product weight]：32.3±1g
[Introduction]：The NS8-V2-TB Ethernet module test kit includes a built-in USB-to-TTL converter (only one channel is built-in, switchable via a jumper), allowing for quick debugging without an external converter. The reset and factory reset pins are exposed for external buttons, and all module function pins are exposed for convenient external debugging.
| project | illustrate |
| Operating voltage | 3.0～5.5V（DC） |
| Working current | Peak: 130mA @ 5V |
| Standby: 80mA@5V | |
| Peak: 150mA @ 3.3V | |
| Standby: 100mA@3.3V | |
| Serial port level | TTL level (3.3V) |
| Working Mode | TCP Server（默认）、TCP Client、UDP Server、UDP Client、 HTTP Client、MQTT Client |
| Socket Connection | A single-link TCP server supports up to 5 client connections |
| Network Protocol | IP、TCP/UDP、IPv4、APR、DHCP、DNS、HTTP、MQTT |
| IP address | Customizable (default, 192.168.3.7) |
| Domain name resolution | support |
| DNS domain name resolution server | Customizable (default 114.114.114. 114) |
| Configuration method | Configuration tools, AT commands |
| Local Port | Customizable (default, channel 1 to channel 8: 8001-8008) |
| Subnet mask | 255.255.255.0 (default, customizable) |
| Gateway | 192.168.3.1 (default, customizable) |
| Serial port buffer | n×3kByte |
| 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 |
| Product size | 89*49 mm |
| Product weight | 32.3g |
| Working temperature and humidity | -40 ~ +85℃, 5% ~ 95%RH (non-condensing) |
| Storage temperature and humidity | -40 ～ +105℃, 5% ～ 95% RH (non-condensing) |
