The document discusses the benefits of a dual SIM 4G router. It recommends the H750 Dual SIM 4G LTE Router from E-Lins Communication for projects requiring dual SIM functionality. The H750 supports dual SIMs to allow for failover between networks if one SIM loses connection, and load balancing across the two SIMs to improve throughput. It has additional features such as WiFi, serial ports, GPS, and ruggedized casing making it suitable for industrial Internet of Things applications.

1. H750 Dual SIM 4G Router
Why we need a dual sim 4g router?
Sometimes there are projects requires dual sim 4g router. For example, the case
needs SIM1+SIM2 working together, SIM1 is working as primary while SIM2 is
working as backup.
When SIM1 is off, then router will switch to SIM2 work well; which will ensure the
data link keep alive and stable.
Is there a good choice of Dual SIM 4G Router?
If you have a project or case need a smart dual sim 4g router, i recommend a model
H750 Dual SIM 4G LTE Router which from E-Lins Communication Co., Limited to you.
The E-Lins’ H750 series dual sim 4g router is a compact, ruggedized 3G/4G/LTE and
Dual SIM cellular networking solution designed for mission-critical connectivity in the
most challenging environments. It is qualified for M2M (Machine to Machine), IoT
(Internet of Things) and In-Vehicle applications.
With an extensive list of safety and hardening certifications, the H750 dual sim 4g
router is engineered to protect against extreme temperatures, humidity, shocks,
vibrations, dust, reverse polarity, and transient voltage, which is widely used in more
than twenty industrial fields, such as CCTV security surveillance, vehicle, Telemetry,
vending machines, power control, AMR, traffic, oil field, weather forecast,
environmental protection, street lamp control, post, bank and many other areas.
 Multi-carrier 2G/3G/4G LTE support with Dual SIM card slot
 Cellular/WAN RJ45/Wi-Fi client failover and Load Balance (Bandwidth link
bonding)
 Supports LTE Advanced with SIM-based auto-carrier selection
 Cloud-managed (with NMS network management system), TR-069, Web
management, SMS, SSH/Telnet/Command, SNMP
 Wi-Fi (802.11 a/b/g/n, 2.4Ghz)
 Certified 3G/4G/LTE enterprise/industrial grade internal modems
 Built-in transient and reverse polarity voltage protection
 5-40V DC voltage input range (5-60V DC option), Dual Power Inputs / Power
Failover;
POE (Power over Ethernet)
 GPS / GNSS support
 Serial Port
 DI/DO port * 4
 TF (MicroSD card slot)

2.  Supports Ethernet (T1, DSL, Cable), Wi-Fi as WAN, and Metro Wi-Fi
 Ruggedized to ensure always-on connectivity
 Create real-time alerts to monitor uptime
 Offer secure, guest Wi-Fi to passengers
 Advanced security, VPN, and stateful firewall to protect sensitive data
 Robust Metal Case is ruggedized for vibration, shock, provide IP30 protection
Desktop, Wall-mount and Din-rail mount of installation
Which main features model H750 owns?
To further enhance the wireless M2M and IoT reliability, the H750 dual sim 4g router
load balancing has a second SIM Card slot so that you can insert two SIM cards to get
different applications.
1) Failover
With this using, usually you can get two SIM Cards from different mobile network.
One is the primary SIM, the other is backup SIM. In the event that the primary
network becomes unavailable then the router will switch to the backup SIM card and
use the alternative service provider.
2) Load Balancing and Link Bonding
Being a 4G Load Balancing Router, the H750 dual sim 4g router load balancing can
utilize the two embedded 4G modules, the RJ45 WAN and Wi-Fi Client connections
all at the same time and share these WAN connections with the LAN users.
With channel link bonding, the H750 dual sim 4g router load balancing makes two or
more links are combined for redundancy or increased throughput. Channel bonding
is differentiated from load balancing in that load balancing divides traffic between
network interfaces on per network socket (OSI model layer 4) basis, while channel
bonding implies a division of traffic between physical interfaces at a lower level,
either per packet (OSI model Layer 3) or a data link (OSI model Layer 2) basis.
For more information, please visit E-Lins Technology.