# 4G industrial router, USR-G806S, IoT, RS485, WiFi, RTU to TCP, 9-36V

- Page: https://sigmanortec.ro/en/4g-industrial-router-usr-g806s-iot-rs485-wifi-rtu-to-tcp-9-36v
- Price: 998.55 RON
- Availability: In stock; 1-2 zile
- Reference: 88006 · EAN: 5945972222492
- Category: Mechatronics and IoT > Communication, GPS and IoT
- Specifications: Input Voltage: 9-36VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.488 kg
- Updated: 2026-09-23
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 04:49 (Europe/Bucharest)

## Description

Industrial 4G router for secure connectivity in IoT and automation applications, offers fast internet access and equipment interconnection via 4G, WiFi and 2 Ethernet WAN LAN ports. Integrates RS485 with Modbus RTU to TCP conversion, supports VPN for remote access, operates at 9-36V and includes 4G and WiFi antennas.
The USR-G806s is an IoT cellular router that integrates 4G, Wi-Fi, and VPN technologies to provide easy, reliable, and secure internet connectivity, as well as high-speed data access for device interconnection. With technologies such as 4G extended wireless network, dual Ethernet ports (LAN + WAN), and Wi-Fi local wireless network, it offers uninterrupted multi-network access capabilities.
The router comes with 4G and WiFi antennas. The package may or may not include a 12V, 1A power supply . If included, it may or may not be for the EU, this differs from batch to batch.
The model integrates 4G functionally in Europe.
Supports 2G/3G/4G networks worldwide.
Supports APN/VPDN SIM cards.
Two Ethernet ports, WAN/LAN.
Supports Modbus RTU to TCP.
Supports watchdog function.
Supports VPN IPsec, PPTP, L2TP, OPENVPN, GRE, etc.
Supports DDNS, PPPOE, DHCP, Static IP.
Supports email notifications, SMS alerts, and real-time alarm notifications in case of anomalies.
It offers wall or DIN rail mounting options for easy installation.
Material: Metal and plastic
Supports a wireless network (WLAN).
Supports web server.
Supports multiple LED communication indicators.
Supports reset button to restore default settings via hardware.
The wired network ports support a rate of 10/100Mbps.
Supports VPN client (PPTP/L2TP/IPSEC/GRE/OPENVPN/SSTP) and VPN encryption and static IP functions.
Supports special APN network cards.
Supports simultaneous wired and wireless network connections and intelligent switching function between multiple backup networks.
Supports remote update and remote monitoring.
Supports Dynamic Domain Name System (DDNS).
Supports mandatory portal (WIFIDOG), this function must be customized according to customer needs.
Supports AT commands for SMS.
For more detailed details, we invite you to download the user manual available in the Download section.
Specifications:
Supply voltage: 9 - 36VDC (12VDC Recommended)
Power connector: Screw pins or 5.5x2.1 connector
RS485: Yes
MicroUSB jack: Yes
WiFi: Yes
4G: Yes
Dimensions mm: 90 x 84 x 25mm
Cell
Interface
Antenna
1 x SMA-K
Note: North American models: 2 x SMA 4G antenna connectors.
SIM card
1 x (3 V and 1.8 V) standard 2FF SIM, drawer-type SIM card slots
Ethernet
1 x WAN port (can be configured to LAN) 10/100 Mbps, IEEE 802.3 compliant, supports auto MDI/MDIX, 1.5 KV network isolation transformer protection
1 x LAN port, 10/100 Mbps, compliant with IEEE 802.3, IEEE 802.3u standards, supports auto MDI/MDIX, 1.5KV network isolation transformer protection
indicator
light
PWR: always on after power on
WLAN: always on when WiFi is enabled and working properly
WAN: solid when cable is connected, flashes when data is being transmitted and received
LAN : solid when the cable is connected, flashes when data is being transmitted and received
2/3G/4G mode indicator:
The 2G LED is on after connecting to the 2G network.
The 3G LED is on after connecting to the 3G network.
Both LEDs are on after connecting to the 4G network (CN only)
Signal strength : 4 solid bars, strongest signal
WiFi interface
Standards and frequency
IEEE 802.11b/g/n, 2.4 GHz, AP mode
Data speed
IEEE 802.11b/g, maximum 54 Mbps.IEEE 802.11n, maximum 150 Mbps
Antenna
1 x SMA-K
Transmission distance
80 meters line of sight. The actual transmission distance depends on the site environment.
Power supply
Adapter
DC 12V/1A
Connector
DC power jack female barrel type 5.5 * 2.1 mm round plug or 2-pin 5.08 mm industrial terminal block, reverse polarity protection
Input voltage
DC 9~36V
Working power
Average 270mA/12V
Serial interface
RS485/RS232 (alternative)
Industrial terminal block with 3 pins of 3.81 mm. Note: RS485 default
Transmission rate (bps)
1200,2400,4800,9600,19200,38400,57600,115200,230400
Data bits
8
Stop bit
1.2
Parity
NOTHING, WHAT, APPEARS
Physical
Features
Housing
Metal housing, IP30
size
112.0 * 84.0 * 25.0mm (L * W * H )
Installation method
Panel mounting, DIN rail mounting
EMC
Static IEC61000-4-2, level 2
Pulsed electric field IEC61000-4-4, level 2
Surge IEC61000-4-5, level 2
Operating Temperature
-20 ℃ ～ +70 ℃
Storage temperature
-40 ℃ ～ +125 ℃
Operating humidity
5% ~ 95 %RH ( non-condensing)
Others
Recharge
Hole reset button
TBD
Debug interface (TTL level)
Built-in guard dog
The device runs self-detection, automatically recovering from failures
Software specifications
Network
Connection
WAN protocol
PPP, PPPoE, DHCP client
LAN protocol
ARP, DHCP server, NAT
4G network access (CN only)
Automatic APN/VPDN, private network
Access authentication: CHAP/PAP
WLAN security
Open system, WPA/WPA2 PSK
TKIP/AES encryption
IP routing
Static routing
Network diagnosis
Ping, traceroute, DNS
Serial modem
Working method
NET,HTTPD
plugs
4 sockets, 4 hubs, TCPS(SOCKA)/TCPC/UDPS/UDPC
Modbus RTU to TCP
To support
Device
management
Configuration
Web
Remote management
Telnet, SSH, AT command, SNMP
PUSR Platform
Remote monitoring, remote upgrade, alarm, base station location, remote access to router web pages
Security
Failover backup
Failover between 3G/4G and WAN, ensures automatic switching to an alternative backup connection
Firewall
DMZ, anti-DoS, filtering (IP/domain name/MAC address), port mapping, access control
VPN
Supports PPTP, L2TP, GRE, IPSEC VPN (IKEv1), OPENVPN protocols
Service
DDNS
Remote access to the device via domain name
Alarm
Email, SMS
Others
NTP client
Synchronization task
Frequency
TDD-LTE
B38/B40/B41
FDD-LTE
B1/B3/B5/B7/B8/B20/B28
WCDMA
B1/B5/B8
GSM/GPRS/EDGE
850/900/1800MHz