4G OpenWRT Router, OEM LTE WRT Router 2.4Ghz 5Ghz Dual Band WiFi

E-Lins'CheapOpenWRT routers are mainly focused on cellular types, such as 3G and 4G. 4G is 4G LTE, which is a new technology with 100Mbps download and 50Mbps upload speed. And can be easily updated to 150Mbps, 300Mbps,1000Mbps or higher speed.

For single sim 4G OpenWRT dual band router, the main models are H685, H685m, and H820.


Sim Slot Quantity

Module Quantity

Ethernet Port





WAN RJ45 * 1

LAN RJ45 * 1

With serial port and DIO port for option




WAN RJ45 * 1

LAN RJ45 * 1




WAN RJ45 * 1

LAN RJ45 * 4

With serial port and DIO port for option

OpenWRT is a highly modularized, highly automated embedded Linux system with powerful network components and scalability and is often used in industrial equipment, teles, small robots, smart homes, routers and VOIP equipment. At the same time, it also provides more than 100 compiled software.

Unlike many other distributions for routers, OpenWRT is a full-featured, easy-to-modify router operating system written from scratch. In fact, this means that you can use the features you want without adding other cumbersome.

E-Lins attaches great importance to technology and product development. The company has strong R & D strength, R & D staff with the total staff ratio of more than 50 percent. The backbone R & D personnel in the industry have more than 10 years research and development experience. For a long time, E-Lins close to the pulse of the development of the Internet industry trying to be industry promoter.

Typical Topology

Typical Topology

4G OpenWRT Router Typical Topology

Industrial OpenWRT 4G Router Specification


Compatible Mobile Networks




CDMA2000 EVDO Rev 0, Rev A, Rev B



Cellular Frequency

UMTS/HSDPA/HSUPA/HSPA/HSPA+/ DC-HSPA+(WCDMA/FDD):850/1900/2100 MHz, option for 850/900/1900/2100Mhz/1700Mhz/AWS;

3G TD-SCDMA:2010~2025MHz/1880~1920MHz

Quad-band EGSM 850/900/1800/1900;

CDMA1x/EVDO: 800/1900Mhz, option for 450Mhz;


Band 1--2100Mhz

Band 2--1900Mhz

Band 3--1800Mhz


Band 5--850Mhz

Band 7--2600MHz

Band 8--900Mhz

Band 12--700Mhz

Band 13--700(B13)Mhz

Band 17--700(B17)/AWS

Band 19—800Mhz

Band 20--DD800Mhz

Band 21

Band 25–1900Mhz G Block

Band 31– 450Mhz
Other FDD band…


Band 41–2500/2600Mhz

Band 40 --2300Mhz

Band 39–1900Mhz

Band 38 --2600Mhz

Other TDD band…

Notes: There are many different band andfrequenciesfor 4G LTE. Please confirm the detailed band and frequency with your carriers before order.


FDD LTE:100Mbps or 150Mbps or 300Mbpsdownlink, 50Mbps uplink;
TDD LTE: 150Mbps downlink, 50Mbps uplink;





HSDPA:Downlink 7.2 Mbps,Uplink384kbps;

WCDMA/UMTS:Downlink/Uplink 384 kbps;

EDGE:Downlink384kbps,Uplink 118 kbps;

GPRS:Downlink108kbps,Uplink 42.8 kbps;


Rev B: 14.7Mbps downlink, 5.4Mbps uplink
Rev A: 3.1Mbps downlink, 2.4Mbps uplink

Rev O: 2.4Mbpsdownlink,153.6kbps uplink

3G TD-SCDMA: 2.8Mbps

Notes: the bandwidth is peak value. Real value depends on carrier network support.

Network and Band Lock Feature (Option)

Default is unlocked, can use this feature to lock

Main Features and Performance

USB Host


SMS and SMS/Voice Control and Alarm

Receive and Send the SMS;

WAN Cell APN configuration via SMS;

SMS/Voice Control and Alarm. SMS or Call to control router to be online, offline, reboot, signal and status monitor; SMS is default feature, Voice is option

GPS (Option)

GPS feature

DTU (Option)

With DTU feature (Serial to Cellular Gateway feature, RS232 or RS485 port option).


Serial Baudrate: 300bps, 600bps, 1200bps, 2400bps, 4800bps, 9600bps, 19200bps, 38400bps, 57600bps, 115200bps;

Serial Parity: none, even, odd;

Serial Databits: 7, 8;

Serial stopbits: 1, 2;

Serial flow control: none, hardware, software;

Mode: Server (up to 4 server centre, can OEM to be more), Client;

Protocol: TCP, UDP

Heart Beat: Yes;


PPTP, L2TP, IPSec, GRE, Tunnel(PPTP server, PPTP client, L2TP client, IPSec client, IPsec server), OpenVPN



VRRP (Option)



Static Route;

Optional for Dynamic Route (BGP, BGPD, OSPF, Zebra, Rip);


Support V1, V2. V3


Support multi-LAN IP address, support two IP address


Optional,802.11b/g/n;150Mbps default.

Can be used as AP and client;

Frequency from 2.4GHz to2.483GHz,Access Points,Routers and Gateway Server Applications, wireless up to254PC users

Fail Over Redundancy(network Backup feature)

Auto-dial feature, keep alive link;

LCP, ICMP check;

Built-in watch dog;

Cellular (2G/3G/4G), RJ45 WAN (xDSL, DHCP, Fixed IP), WiFi client three line redundancy;

Two H685/H820 dual sim same network(Network1+ Network1);

Two H685/H820 dual sim two network (Network2+ Network 2);

Two H685/H820 dual sim dual mode network (WCDMA+CDMA2000, WCDMA+LTE, CDMA2000+LTE);

Cold Backup is default, Hot Backup is option;
Cold Backup=WAN RJ45 and Cellular WAN not online at the same time. One line online and the other line standby, switch freely with triggers;

Hot Backup=WAN RJ45 and Cellular WAN are online at the same time. Data goes the main line, and switch to the other line. Hot Backup switch time is shorter than Cold Backup.

POE (only for H685)

POE for LAN/WAN RJ45 (use with POE adapter)

Firmware update

support firmware update locally or remotely (LAN, WiFi and OTA WAN)


local and remote



DHCP Server



DNS proxy;

Optimized EMC design;

Real-time clock(NTP, support update with defined hours);

WAN/LAN/Memory statistics;

Local/remote profiles backup and retrieve;


Management System




Ethernet RJ45LAN

H685*1 or 2, H820*4

Ethernet RJ45 WAN*1


2antenna for Wi-Fi (detachable,SMA interface* 1, Internal *1)

3antenna for Cellularand GPS(detachable,50Ω SMA female interface), Cellular supportdiversity receiving(MIMO) option




Cell Signal*1



LAN*1 (H685), LAN (10/100M)1, 2, 3, 4 (H820)





1 console port

Serial port

RS232 or RS485 built-in terminal block interface

IO Port(option)



Easy to use and management;

Web/Telnet/SSH/CLI, support remote management



RMS (Remote Management System)

At command


UIM/SIMCard Slot

Support1.8V/3VUIM/SIM cards, one sim card slot

DC Jack

Two types of input jack for DC

2.5mm DC jack * 1

Terminal Block * 1


Power supply

DC5V-50V / DC5V-60V, typical DC9V1A or 12V1A,12v CAR USE;

DC5V~40V is the default, DC5V~50V is the option


Idle: about 100mA@12VDC

Communication: about 260mA@12VDC


Device Management

WEB interface (Internet Explorer v6 or Later; Mozilla Firefox v1.5 or Later, or other Java-enabled Browsers, Chome, Opera, Sarafi, etc.)

Minimum System Requirements

Windows, Linux, Mac OS, IOS, Symbian, Android, other OS support web browser;

Network Interface Card


Operating Temperature

Storage Temperature: -40 ~ 85°C

Working Temperature: -30 ~ 75°C


95% Maximum (Non-condensing)


H685 Model

PCBA:96mm x56mm x14mm

With case:100mm x60mm x21mm

H820 Model

PCBA:156mm x104mm x20mm

With case:168mm x104mm x25mm


H685 Model

220g (not including the antenna)
330g (includingthe antenna)
650g (including all accessories, without package)

H820 Model

455g (not including the antenna)
550g (includingthe antenna)
850g (including all accessories, without package)


Metal Gray-Black, OEM is available



1 Yeardefault.Option extendsto 5 years maximum.

Package Contents

H685/H820Series 4GOpenWRTRouter

Ethernet Cable

Power Adapter


Others depends on option features

What is a 4G OpenWRT router?

The4G OpenWRT routeris a durable device for connecting two or more networks that can transmit the signal to the desired port. The gateway may convert the standard Ethernet to industrial Ethernet protocols, wireless interfaces to wired interfaces, or Ethernet to Fieldbus communication protocols.

Its processor performance is between 200 and 1500 MIPS, and memory capacity is usually greater than 256 KB level 2 cache. This factory automation equipment structure is strong, suitable for the poor industrial environment with no fan cooling, especially for the data transmission equipment in the industrial field.

As the core equipment of the network, the choice of the router is an unavoidable problem. Many business leaders, due to a lack of expertise, often choose inexpensive home routers for wireless coverage. In fact, this kind of practice is improper, because ordinary household routers are often designed for the family environment. If this application is used in the industry, it is hard to guarantee the stability and safety. So if enterprises need the wireless coverage, they must choose professional industrial-grade routers.

If you are looking for bestWRT router, E-Lins will be you suitable choice.

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