RS485 to WIFI Converter / Serial Server for IOT Solutions

Hardware Instruction

The front view of ESP-4 WIFI serial server is shown in Figure1. ESP-4 uses black anti-radiation SECC board. Left and right are with two "ears" to facilitate the installation.

Size:

L × W × H = 9.4cm × 6.5cm × 2.5cm

Panel Light:

1) ACT: ACT lights up when green indicates that data is normally transferred between WIFI/Ethernet and RS232/485/422. When the ACT light blinks blue, it indicates that data has been returned from RS232/485/422 to WIFI/Ethernet. If the data is short then blue flashing time is relatively short, need to pay attention to view.

2) LINK: LINK lights are green when the RJ45 cable is connected. When the LINK light is blue, it indicates that the TCP connection is established or is in UDP mode.

3) POWER: Indicates that the serial server is powered on.

4) WIFI: WIFI is blue when it indicates that WIFI has established a wifi connection with router as an STA or as an AP there has wifi establishing a connection with it. When the WIFI light is green: 2 seconds flashes, it indicates that it is in AP mode and no wifi connection is established; It flashes every 5 seconds, indicating that the device is in STA mode and is connecting with the router.

The serial interfaces in front of the server area shown in Figure 4, from left there have:

1) Ethernet port: standard RJ45 interface

2) R-, R+, T+, T-: where T+ is RS485A, T- is RS485B; if you need RS422, you can connect these four lines.

3) Terminal power supply +, -: voltage is 9~48VDC.

4) Power outlet: you can use the standard 5.5mm plug (core for the positive), the voltage 9~48VDC.

The back panel of serial server is as shown in Figure 5, from left there have:

1) WIFI antenna. You can choose to the extending line antenna, easy to install to the outside of the metal cabinet.

2) Reset switch: putting on the reset mode, will reset wifi work mode to the AP mode, SSID, password is empty, IP into 192.168.1.254.

3) Serial port using standard DB9 male: line sequence as shown in Table.