[Interface signal]：RS485/RJ45
[Working voltage]：DC 8~28V
[Network protocol]：TCP/UDP, MQTT, HTTP, IPv4, DHCP, DNS
[Product size]：110*66*30mm
[Product weight]：90g±5g
[Introduction]：NA111-E is a serial port server that realizes serial port data ⇌ Ethernet data conversion; it has multiple Modbus gateway modes and MQTTC/HTTPC IoT gateway modes, which can meet the networking functions of various serial port devices/PLCs; it adopts industrial-grade design standards to ensure equipment reliability; the product can be installed using guide rails or positioning holes. The product is sprayed with three-proof paint, which has functions such as "anti-mold", "anti-humidity" and "anti-salt spray".
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| Serial number | name | Function | illustrate |
| 1 | POWER | Power indicator | Power on: Blue light is always on. |
| Power off: Light goes out. | |||
| 2 | TXD | Serial port sending indicator | 3 seconds before power-on: flashes quickly. |
| There is data being sent: the red light flashes. | |||
| No data to send: light off. | |||
| 3 | RXD | Serial port receiving indicator | 3 seconds before power-on: flashes quickly. |
| Data is being sent: the green light flashes. | |||
| No data to send: light off. | |||
| 4 | M0 | Link indicator | 3 seconds before power-on: flashes quickly. |
| Network connected, green light is always on. | |||
| The network is disconnected and the light is off. | |||
| UDP mode: The green light is always on. | |||
| 5 | M1 | STATE indicator | The network cable is connected and the yellow light is always on. |
| The network cable is disconnected and the lights are off. | |||
| 6 | Restore | Reset button | Long press until the POWER, TXD, RXD, and M0 indicators are on, then release. |
| 7 | RJ45 | Network port | 10M network port. |
| 8 | RS485 | RS485 interface | A connects to A, B connects to B. |
| 9 | Power Input | NA111-A(AC) | NA111-A: 85-265V AC input, 2×5.08mm Phoenix terminal. |
【Note】When the network cable is not connected, POWER, TXD, RXD, and M0 are all on, M1 is off, and the device is in standby mode.