E Lins
Indoor . 5G RedCap . Cellular . No EH Ports . No Wi-Fi

M400frc

M400frc 5G Redcap Modem
The M400frc 5G Redcap Modem is a complete wireless data modem providing global cellular network connectivity; where cellular signal available, with 5G/4G/3G fallback capabilities for ensured access to the internet anywhere, providing RS232/RS485/USB port option. The M400frc is an easy to install productivity tool designed to provide maximum accessibility to the mobile professional allowing quick access to the internet for real-time business transactions, email, web browsing and more.
5G RedCap No EH Ports No Wi-Fi Single SIM TCP/UDP/IPv4 No OS
M400frc • KEY SPECS IN PRODUCTION
M400frc 5G Redcap Modem
Network 5G Redcap
Form Factor Failover 4G
Integration RS232 or RS485
Enclosure USB
Connectivity Type
5G RedCap
Network Protocols
TCP/UDP/IPv4
Features
Single SIM
Wi-Fi
No Wi-Fi

The M400frc 5G Redcap Modem is a complete wireless data modem providing global cellular network connectivity; where cellular signal available, with 5G/4G/3G fallback capabilities for ensured access to the internet anywhere, providing RS232/RS485/USB port option.

The M400frc is an easy to install productivity tool designed to provide maximum accessibility to the mobile professional allowing quick access to the internet for real-time business transactions, email, web browsing and more.

Highlights

Built-in 3G/4G LTE/5G industrial cellular module with sim card slot, insert SIM/UIM card to work directly. Can design dual sim modem slot. SIM failover/standby APN 3G/4G/5G failover for fixed line broadband connections External antenna connectors for high gain antennas replacement Support At command RS232/RS485/USB/RJ45 port option MIMO supported Support At command Option Features: Voice Supported Built-in TCP/IP Stack GPS

E-Lins has a better industrial design

Robust and Working in Wide Range Temperature

Quality industrial grade casing provides robust and reliable 5G Redcap modem for installation in many different environments and operating temperature of -35 Celcius to +75 Celcius

GNSS / GPS is supported (option)

Industrial Applications

  • Remote data monitoring & control (SCADA / telemetry)
  • CCTV & security surveillance backhaul
  • AMR automatic meter reading — water, gas, oil flow
  • Power station & distribution network supervision
  • POS terminals, ATM & vending machines
  • Traffic signal & street lamp monitoring
  • Fleet management & vehicle diagnostics
  • Hydrologic / weather station data acquisition
  • Telecom base-station equipment supervision

Always-Online Failover

Cellular, wired WAN and Wi-Fi client back each other up automatically. When one link drops, traffic switches in seconds — your SCADA polling never notices.

Serial DTU for Legacy Devices

Optional RS232/RS485 port bridges Modbus RTU meters and decades-old controllers onto IP networks. No forklift upgrade — the serial device just gains a 4G link.

Full VPN Suite On Board

IPsec, L2TP, PPTP and GRE tunnels terminate directly on the router. Site data reaches your platform encrypted, without extra security appliances.

Built for Outdoor Cabinets

Wide-temperature components, enhanced ventilation and a compact metal body fit cramped street cabinets and survive them. Rated for −35 °C cold starts to +75 °C summer heat.

Self-Healing Watchdog

A hardware watchdog plus multi-layer link detection restarts frozen links before anyone calls you. Unattended sites keep working for years, not weeks.

Fleet Management via NMS

Every H685T reports signal, traffic and status to E-Lins NMS cloud. Push configs and firmware to one unit or ten thousand — from a single dashboard.

Typical Deployment Topology

RTU / PLC / Meter

Modbus RTU • Ethernet
existing field device
RS485 / LAN

H685T Router

DTU gateway • VPN tunnel
failover & watchdog
4G TDD-LTE

4G Network

carrier network
B38/39/40/41
IPsec / MQTT

Cloud Platform

SCADA center • E-Lins NMS
your IoT application

M400frc in the E-Lins 4G Family

M400frc This Model H820QOf H700tt-W H685 4G Advanced Router
Product Type Indoor Outdoor Indoor -
Cellular Connectivity Cellular Cellular Cellular -
Connectivity Type 5G RedCap 5G SA/5G NSA 4G Cat6 -
Ethernet Ports No EH Ports 2 EH Ports 5 EH Ports -
SIM Card Single SIM Single SIM Dual SIM -
Ethernet Speed None 10/100/1000Mbps 10/100/1000Mbps -
PoE No PoE Passive PoE In Passive PoE In -
Wi-Fi No Wi-Fi No Wi-Fi Wi-Fi 5 -
SFP Port No SFP No SFP No SFP -
Serial RS232 No Serial No Serial -
Features Single SIM Single SIM/Passive PoE In Dual SIM/Passive PoE In -
Industrial Protocols - Modbus/DNP3 Modbus/DNP3 -
Network Protocols TCP/UDP/IPv4 MQTT/TCP/UDP/IPv4/IPv6/DNS/HTTP/NTP/ICMP TCP/UDP/IPv4 -
Operating System No OS Linux Linux -
Power Socket DC PoE In DC -
Datasheet M400frc ↓ H820QOf → H700tt-W → H685 4G Advanced Router →

KEEP EXPLORING

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IN THE BOX & ADD-ONS

Accessories Available

Genuine E-Lins accessories tested with the M400FRC: power, antenna, mounting and cabling.

Sample list — awaiting the accessory catalogue.

4G LTE SMA Antenna (Standard)
High-Gain 4G Antenna 5 dBi
12V / 1.5A Power Adapter
DIN Rail Mounting Kit
RS232 Serial Cable (DB9)
RS485 Terminal Block Cable
9-36V DC Vehicle Power Cable
Wi-Fi Antenna 2.4 GHz
Magnetic-Mount 4G Antenna
SMA Extension Cable 3 m
Wall-Mount Bracket Kit
PoE Splitter (Passive)
Free 30-Day Trial

Cloud Platform · Included with E-Lins Routers

Network Management
System

Monitor, configure and upgrade your entire fleet of M400FRC routers from one cloud dashboard: bulk operations, real-time alerts and API integration. Cloud SaaS or private on-premise deployment.

Bulk firmware upgrades Real-time alerts Open API integration
E-Lins NMS fleet overview dashboard showing connected sites and signal levels

Knowledge Base · Documentation

M400FRC on the E-Lins Wiki

Configuration guides, firmware changelogs and field tutorials. Full documentation lives on the E-Lins Wiki.

About the E-Lins M400FRC

The M400frc 5G Redcap Modem is a complete wireless data modem providing global cellular network connectivity; where cellular signal available, with 5G/4G/3G fallback capabilities for ensured access to the internet anywhere, providing RS232/RS485/USB port option.

The M400frc is an easy to install productivity tool designed to provide maximum accessibility to the mobile professional allowing quick access to the internet for real-time business transactions, email, web browsing and more.


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