4G Industrial Routers

YF355 4G LTE Industrial Router

YF355 4G LTE Cat4/Cat6 industrial router with RS232/RS485 serial gateway, Docker edge computing, and IECEx certification. Ideal for oil & gas, mining, and factory automation.

The YF355 is a 4G LTE industrial router designed for M2M, SCADA, and remote industrial IoT deployments. It delivers reliable LTE Cat4 connectivity with dual SIM failover, RS232/RS485 serial ports, and digital I/O, operating from -40°C to +75°C. YF355 is FCC and CE certified for global markets and supports Docker for edge computing applications in utilities, transportation, and energy infrastructure.

IP30 -40°C to +75°C
Cellular
4G LTE Cat4/Cat6 or 5G Redcap
Wi-Fi
802.11b/g/n, 2.4GHz
Ethernet
1x LAN + 1x WAN/LAN
SIM Slots
2 (eSIM compatible)
Serial
1*RS232, 1*RS485
VPN
IPSec, OpenVPN, PPTP, L2TP, Wireguard, Zerotier

Key Features

Built for demanding industrial environments

LTE Cat4/Cat6, 5G Redcap

Dual SIM with automatic carrier failover

Wi-Fi (802.11b/g/n) access point

VPN

OpenVPN, IPSec, L2TP, WireGuard, GRE

Wide voltage input

DC 9–36V

Operating temperature

-40°C to +75°C

Yifan cloud management — remote config, OTA firmware, real-time alerts

DIN rail / wall mount, IP30 enclosure

Cellular

Technology 4G LTE Cat4/Cat6 or 5G Redcap
SIM Slots 2 (eSIM compatible)
Frequency Bands LTE B1/B3/B7/B8/B20/B28/B38/B40/B41 B1/B2/B3/B4/B5/B7/B8/B12/B17/B28/B66 (Optional) B2/B4/B5/B12/B13/B17/B66/B71 (Optional)
Max Downlink 300Mbps/150Mbps
Max Uplink 50Mbps

Networking

Wi-Fi 802.11b/g/n, 2.4GHz
Ethernet 1x LAN + 1x WAN/LAN
Serial Ports 1*RS232, 1*RS485
VPN IPSec, OpenVPN, PPTP, L2TP, Wireguard, Zerotier

Hardware

CPU ARM Cortex-A7, 580MHz
Memory 128MB RAM / 32MB Flash
Power Input DC 9-36V
Dimensions 91.4x92.4x31mm
Weight 200g
Mounting Desktop, Wall Mount, DIN Rail

Environmental

Operating Temperature -40°C to +75°C
IP Rating IP30

General

Model NumberYF355

Software & Platform

Intelligent management built into every device

Management Platform
Yifan IOT Platform

Centralized cloud management for remote monitorning and OTA updates.

Learn More →
Built-in MQTT gateway, supporting data transparent transmission to HTTP/MQTT/Azure cloud
Supports remote management platform and PC client applications
Supports MODBUS TCP and Modbus RTU status/control
Supports MQTT subscription and MQTT publishing
Supports bridging and transparent transmission functions
Flexible access control for SSH, Web interface, CLI, and Telnet

Applications

Trusted across industries for mission-critical connectivity

15+Years Experience
120+Countries Served
FCC & CECertified
24/7Tech Support

Frequently Asked Questions

The YF355 provides one RS232 and one RS485 port, supporting Modbus RTU/ASCII to Modbus TCP protocol conversion for connecting legacy serial devices to modern IP-based SCADA systems.

Yes. The YF355 includes a Docker-compatible edge computing environment for deploying custom applications locally — reducing latency and cloud bandwidth costs.

Yes. The YF355 holds IECEx certification for Zone 1 and Zone 2 hazardous areas, making it suitable for oil and gas, petrochemical, and mining environments.

The YF355 adds RS232, Docker edge computing, IECEx certification, and higher throughput versus the more compact YF325 designed for standard IoT and smart metering.

Yes — through Yifan IOT platform you can remotely monitor, configure, and update firmware across hundreds of YF355 deployments from a single dashboard.

Purchasing & Commercial FAQ

Standard production and delivery lead time for the YF355 is 7-15 business days from our ISO 9001-certified Xiamen, China facility. All units carry a 12-month manufacturer warranty. Express options available — contact sales@yifanrouter.com.

Yes. Yifan offers full OEM and ODM services for the YF355, including private-label branding, custom firmware, hardware modifications, and localized packaging. Submit an OEM/ODM inquiry at yifanrouter.com/industrial-router-manufacturer/ or email sales@yifanrouter.com.

Yes. Evaluation sample orders are available for the YF355 prior to volume commitment. Visit yifanrouter.com/wholesale-industrial-routers/ for details, or email sales@yifanrouter.com with your evaluation requirements.

Ready to Get Started?

Contact us for pricing, samples, or technical consultation. Our engineering team is ready to help you find the perfect connectivity solution.

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