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Industrial 4G LTE router with 3x RS232 and 1x RS485 serial ports, optional dual SIM, Wi-Fi, and comprehensive VPN support for SCADA and M2M applications.
The YF336 is a 4G LTE industrial router engineered for heavy-duty M2M, SCADA, and smart grid applications. It provides LTE Cat4 connectivity with RS232/RS485 serial ports, optional dual SIM, and digital I/O, operating from -35°C to +75°C. YF336 is FCC and CE certified and supports IPsec, OpenVPN, GRE, and L2TP VPN for secure remote access across industrial networks.
Built for demanding industrial environments
up to 150 Mbps downlink / 50 Mbps uplink
IPSec, OpenVPN, PPTP, L2TP, GRE (client and server)
DC 5-36V
-35 to +75 degrees C
| Technology | 4G LTE / 3G WCDMA / CDMA / GPRS/GSM |
| SIM Slots | 1 (Dual SIM optional) |
| Frequency Bands | LTE FDD: B1/B3/B5/B7/B8/B20/B28; LTE TDD: B38/B40/B41; WCDMA: 2100/1900/900/850MHz; EDGE/GPRS/GSM: 850/900/1800/1900MHz |
| Max Downlink | 150Mbps (4G LTE) |
| Max Uplink | 50Mbps (4G LTE) |
| Wi-Fi | IEEE 802.11b/g/n, 2.4GHz, up to 144Mbps |
| Ethernet | 1x WAN/LAN + 1x LAN (10/100M RJ45, 15KV ESD) |
| Serial Ports | 3x RS232 + 1x RS485 (15KV ESD, configurable) |
| VPN | IPSec, OpenVPN, PPTP, L2TP, GRE |
| CPU | Industrial-grade CPU |
| Memory | 128MB DDR2 RAM / 16MB Flash |
| Power Input | DC 5~36V |
| Dimensions | 126 x 89 x 30 mm |
| Weight | 320g |
| Mounting | Desktop, Wall Mount, DIN Rail |
| Operating Temperature | -35°C to +75°C |
| IP Rating | IP30 |
| Model Number | YF336 |
Intelligent management built into every device
Centralized cloud management for remote monitoring, configuration and OTA firmware updates
Trusted across industries for mission-critical connectivity
Remote monitoring, PLC data collection and predictive maintenance
Smart grid, EV charging stations and solar inverter connectivity
Real-time GPS tracking, in-vehicle Wi-Fi and route optimization
POS terminals, digital signage and unmanned store networking
Traffic control, environmental sensors and public safety networks
Pipeline monitoring, well-site automation and remote operations
The YF336 has 3x RS232 ports plus 1x RS485, making it one of the few industrial routers with multiple RS232 interfaces for connecting legacy serial equipment.
Dual SIM is available on the YF336-L-SIM2 model, providing automatic carrier failover for improved connectivity reliability.
Standard production and delivery lead time for the YF336 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 YF336, 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 YF336 prior to volume commitment. Visit yifanrouter.com/wholesale-industrial-routers/ for details, or email sales@yifanrouter.com with your evaluation requirements.
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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