5G Redcap • Gigabit RJ45 • PoE In • RS232

H685frc-RS232

H685frc 5G RedCap Router with RS232

The E-Lins H685frc 5G RedCap router with RS232 is a compact industrial cellular router designed for serial communication and industrial automation applications. Supporting RS232 connectivity, remote device management, and stable 5G RedCap networking, it is ideal for PLC, SCADA, telemetry, and industrial IoT deployments.

SIM slots: Single SIM
Ethernet: 2 EH Ports
Interfaces: RS232

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Introduction Video

Product Overview

The E-Lins H685frc 5G RedCap industrial router with RS232 is a compact and reliable wireless networking solution designed for industrial communication and remote device management. Powered by advanced 5G RedCap technology, it provides efficient, low-power, and cost-effective cellular connectivity for industrial IoT and automation applications.

With integrated RS232 serial communication support, the H685frc operates as a dependable industrial RS232 router for connecting PLCs, legacy serial devices, industrial controllers, and monitoring equipment to cloud platforms and remote control systems. As a versatile serial to cellular router, it enables seamless wireless data transmission between serial devices and cellular networks.

The router is also ideal as an RS232 cellular router for SCADA systems, industrial telemetry, vending machines, kiosks, smart utility systems, and remote equipment monitoring. Supporting stable industrial-grade networking and secure VPN communication, the H685frc ensures reliable connectivity in demanding environments.

Designed for industrial automation and machine-to-machine communication, the H685frc serves as a high-performance industrial serial router, PLC serial router, and SCADA serial router for applications requiring secure and continuous remote serial communication.

Highlights

Multi-carrier 3G/4G LTE/5G support with 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 or 802.11ac, 2.4Ghz or dual band 2.4Ghz/5Ghz); Built-in transient and reverse polarity voltage protection, over-current and over-voltage protection; 5-40V DC voltage input range (5-60V DC option), Dual Power Inputs / Power Failover; GPS / Beidou support; Serial Port; DI/DO port * 4; Supports Ethernet (T1, DSL, Cable, MetroE), 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; Desktop, Wall-mount and DIN-Rail mount of installation; External antenna connectors for high gain antennas replacement; MIMO supported;

E-Lins has a better industrial design

Industrial Design: Robust and Working in Wide Range Temperature

H685frc 5G router with Ethernet is industrial designed, excellent function to ensure 7x24h running in stability and reliability;

Wide range power input with dual types of input supported; Alloy-metal case, IP30 protection standard;

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

With Multi-Powerful-Features

Built-in Industrial Modem Module and SIM Card Slot

The H685frc can built-in industrial class radio modem module to provide robust and reliable cellular network communications. With SIM Card Slot, users can insert a SIM to dial-up 3G/4G/5G networks directly.

Rich Interface

VPN Safety and Securiy

H685frc 5G router external antenna offers more VPN safety application schemes, data transmission reach to financial grade standard E-Lins wireless routers support APN/VPDN private networks, also including various VPN access such as IPSEC, PPTP, L2TP, GRE,OPENVPN, Wireguard, DMVPN, etc. including the function of VPN client and server. Add one more channel of encryption communication under the base of special network can fully guarantee the safety and accuracy of data of dealing and management.

Dual Power or Tri Power Input

The H685frc smart 5G Router supports wide voltage range of 5V to 40V DC (option up to 60V DC) and has two power inputs so if the primary power fails then the modem will automatically use the second power supply without link downtime.

Three Types of Installation (Din-rail, wall-mount, Desktop)

Beidou / GPS is supported

Multi-management

Supporting Web GUI, Telnet, SSH Command, SMS, TR-069, SNMP, and NMS (E-Lins Network Management System), users can manage and control the H685frc 5G router external antenna easily and flexibly.

All E-Lins communication terminals can be connected to the E-Lins remote managing and controlling platform (NMS), which brings the generous devices scattering in different areas to carry out concentrate monitor, configuration, updated, diagnose, maintenance, manage and control. Highly reduce the maintenance costing in the operator, integrator, devise supplier etc, increase the managing efficiency.

Product Features

Product TypeIndoor

Connectivity Type5G RedCap

Ethernet Ports2 EH Ports

SIM CardSingle SIM

Ethernet Speed10/100/1000Mbps

PoEActive PoE In

Wi-FiNo Wi-Fi

SFP PortNo SFP

SerialRS232

FeaturesSingle SIM/Active PoE In

Industrial ProtocolsModbus/DNP3

Network ProtocolsMQTT/TCP/UDP/IPv4/IPv6/DNS/HTTP/NTP/ICMP

Operating SystemLinux

Power SocketDC

Technical Specifications

Main Feature
WAN	Cellular 3G/4G LTE/5G RedCap WiFi as WAN Failover/Failback and Load Balance (Bandwidth bonding) Advanced Modem Failure Check IP Passthrough WAN ports support Cell/Static IP/DHCP/PPPoE (on demand, keep alive, schedule, manual, standby)
LAN	DHCP Server, Client, Relay DNS and DNS Proxy DDNS UPnP DMZ Multicast/Multicast Proxy QoS (DSCP and Priority Queuing) MAC Address Filtering VLAN 802.1Q
WiFi	802.11 a/b/g/n or 802.11ac Up to 64 connected devices WPA2 Enterprise (WiFi) Hotspot/Captive Portal SSID-based Priority
VPN AND ROUTING	IPsec Tunnel, PPTP, L2TP, GRE Tunnel, OpenVPN (option), DMVPN (option); OSPF/BGP/RIP, Virtual Server/Port Forwarding, IPv6 (option), VRRP;
MANAGEMENT	E-Lins Enterprise Cloud Network Management System (NMS) Web UI, API, CLI/SSH/Telnet Data Usage Alerts (router and per client) Advanced Troubleshooting (support) Device Alerts SNMP SMS control TR-069
SECURITY	RADIUS and TACACS+ support 802.1x authentication for Ethernet Certificate support ALGs MAC Address Filtering Advanced Security Mode (local user management only) Per-Client Web Filtering IP Filtering Content Filtering (basic) Website Filtering Zone-Based Object Firewall with host address (IP or FQDN), port, and mac address Other Details: NAT, SPI, port blocking, service filtering (FTP, SMTP, HTTP, RPL, SNMP, DNS, ICMP, NNTP, POP3, SSH), protocol filtering, WAN ping (allow/ignore)
OPTIMIZED IP COMMUNICATIONS	Automated WAN Failover/Failback support WAN Affinity and QoS allow prioritization of VoIP services Advanced VPN connectivity options to HQ SIP ALG and NAT to allow VoIP and UC communications to traverse firewall MAC Address Filtering 802.1p/q for LAN QoS segmentation and treatment of VoIP on LAN Private Network support (wired and 4G WAN)
Firmware update	support firmware update locally, remotely (LAN, WiFi and OTA WAN) and RMS (Remote Management System) option;
DI/DO (Digital Input and Output)	4 ports, 0-3.3V. Support status monitor via SMS and Email; Option: customers can order E-Lins switch control board (5-40VDC supported)
Others	Cellular and WiFi MIMO supported; Syslog (local and remote); DDNS; DNS proxy; Optimized EMC design; Real-time clock (NTP, support update with defined hours); WAN/LAN/Memory statistics; Local/remote profiles backup and retrieve;
Feature Details
Redundancy and Load Balancing	Failover/failback with 5G, 4G, 3G; WAN failure detection, VRRP; Auto-dial feature, keep alive link; LCP, ICMP check; Built-in watch dog; Cellular (3G/4G/5G), RJ45 WAN (xDSL, DHCP, Fixed IP), WiFi client three line redundancy; Option Feature: Ethernet with rule selection, advanced load balancing options (round robin, spillover, data usage, rate)
Intelligent Routing	UPnP, DMZ, virtual server/port forwarding, routing rules, NAT-less routing, wired or wireless WAN-to-LAN IP passthrough, route management, per-interface routing, content filtering, IP filtering, website filtering, per-client Web filtering, local DHCP server, DHCP client, DHCP relay, DNS, DNS proxy, Split DNS; ALGs: PPTP, SIP, TFTP, FTP, IRC; MAC address filtering, Dynamic DNS, LAN/WAN affinity, VLAN 802.1Q (coming Q4), STP, enterprise routing protocols: BGP/OSPF/RIP, multicast proxy support, IP setting overrides, IPv6 support option;
Management	web-based GUI (local management), optional RADIUS or TACACS+ username/password; remote WAN web-based management w/ access control (HTTP, HTTPS); SNMP v1, v2c, & v3; CLI over SSH, SSH to serial, SSH to telnet; API; one-button firmware upgrade; modem configuration, update, and management; modem data usage w/ alerts, per-client data usage; custom AT scripting to modems; SMS; TR-069; Option: Enterprise Cloud Remote Management System (RMS): cloud-enabled management and application platform (subscription-based);
VPN	IPsec – Tunnel, NAT-T, and transport modes; connect to E-Lins, Cradlepoint, Cisco/Linksys, CheckPoint, Watchguard, Juniper, SonicWall, Adtran and others; Hash (MD5, SHA128, SHA256, SHA384, SHA512), Cipher (AES, 3DES, DES); GRE tunneling; PPTP support; L2TP, L2TP over IPSec support; VPN pass-through; OpenVPN support (option); DMVPN (option); Certificate support (option); multiple networks supported in a single tunnel, site-to-site dynamic VPN with NHRP; VTI Tunnel support;
SMS, SMS 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; SMS text sending and receiving;
Specifications
Main
Hardware	RAM: 1000Mb DDR3, option up to 4Gbit; Flash: 128M, option for up to 8Gbit;
WAN	Integrated 5G modem (with 4G, 3G and 2G failover); One 10/100/1000Mbps Ethernet ports – cable/DSL/T1/satellite/Metro Ethernet; WiFi as WAN, Metro WiFi; MIMO “N” 2.4 GHz or dual band; 802.11 a/b/g/n or 802.11ac;
LAN	802.11 a/b/g/n or 802.11ac; Two LAN/WAN switchable 10/100/1000Mbps Ethernet ports;
Ports	Power (DC Jack, 2 Pin Terminal Block for wire connection) 2 Ethernet LAN/WAN 2-4 cellular antenna connectors (SMA) 1 GPS antenna connector (SMA) 2 WiFi antenna connectors (SMA) Serial connector – RS232 / RS485 (Terminal Socket) 4 Digital I/O ports (Terminal Socket) Console Port (Terminal Socket)
Power	Dual Power Inputs / Power Failover; DC input steady state voltage range: 5-40 VDC / 5-60VDC option, (requires inline fuse for vehicle installations); For 9–24 VDC installations, use a 3 A fuse; For > 24 VDC installations, use a 2.5 A fuse; Reverse polarity and transient voltage protection per ISO 7637-2 Ignition sensing (automatic ON and time-delay OFF);Power consumption: Idle: typical=100mA@12VDC; Maximum=500mA@12VDC; Tx/Rx: typical=300mA@12VDC; Maximum=800mA@12VDC; 12VDC 2A adapter recommended
LEDs	SYS1, VPN (IPSec)1, Cell Signal1, Cell1, WAN1, LAN1, WiFi*1
UIM/SIM Card Slot	Support 1.8V/3V UIM/SIM cards,E-SIM is supported.
Others	Reset button, console port
Size	PCBA: 96mm x 56mm x 14mm With case: 100mm x 60mm x 21mm
Weight	About 220g (not including the antenna) About 330g (including the antenna) About 650g (including all accessories, without package)
Temperature	All models: −35 °C to 75 °C ambient air operating; All models: −40 °C to 85 °C storage;
Humidity (non-condensing)	5% to 95% operating 5% to 95% storage
Case	Aluminum alloy; Black color; Customization is available
Cellular
Compatible Mobile Networks	5G (SA and NSA) 4G LTE (FDD/TDD) 3G UMTS WCDMA (HSUPA/HSDPA/HSPA/HSPA+/DC-HSPA+)
Cellular Frequency	5G Sub-6G: n1/n2/n3/n5/n7/n8/n20/n28/n41/n66/n71/n77/n78/n79/n257/n2614G FDD LTE: Band 1–2100Mhz Band 2–1900Mhz Band 3–1800Mhz Band 4–AWS(1700/2100Mhz) Band 5–850Mhz Band 7–2600MHz Band 8–900Mhz Band 9 – 1700Mhz Band 12–700Mhz Band 13–700(B13)Mhz Band 14 – 700Mhz Band 17–700(B17)/AWS Band 18 Band 19–800Mhz Band 20–DD800Mhz Band 21 Band 25–1900Mhz G Block Band 26 Band 28– 700Mhz Band 29 Band 30 Band 31– 450Mhz Band 32 – 1500Mhz (SDL) Band 66 – 1700Mhz Band 72 – 450Mhz Other FDD band…4G TDD LTE (TD-LTE): Band 48 – 3600Mhz (CBRS) Band 46 – 5200Mhz Band 43 –3600-3800Mhz Band 42 –3400- 3600Mhz Band 41–2500/2600Mhz Band 40–2300Mhz Band 39–1900Mhz Band 38–2600Mhz Other TDD band…UMTS/HSPA/HSUPA/HSPA/HSPA+/DC-HSPA+ (WCDMA/FDD): 2100(B1)/1900(B2)/1800(B3)/ 1700/AWS B4/850(B5)/900(B8)/800(B6)/1800(B9)/850 (B19)Quad-band EGSM 850/900/1800/1900Mhz;Notes: There are many different band and frequencies. Please confirm the detailed band and frequency with your carriers before order.
Bandwidth	Downlink data: 5G/NR sub-6: 2Gbps-10Gbps, LTE 2.4Gbps Uplink data: 5G/NR sub-6:2.5Gbps, LTE 450MbpsNotes: 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
WiFi (WLAN)
Wi-Fi	802.11a/b/g/n or 802.11ac; Can be used as AP and client;Frequency Range: 2.4Ghz: 2.412 ~ 2.472Ghz 5Ghz Band 1: 5150~5250MHz 5Ghz Band 4: 5475~5850MHzSpeed: 802.11n in 300Mbps; 802.11AC options in 867Mbps; High gain WiFi module option;
Others
Warranty	1 Year default. Option extends up to 5 years maximum; Other warranty services can be customized;
Package Contents	H685 Series wireless Router Ethernet Cable Power Adapter Cellular Antenna, WiFi Antenna Others depends on option features (GPS/Beidou antenna, Serial Cable, etc.)
OEM / ODM Services	Yes

Ordering Models

Model No	Network	Interfaces
H685frc	5G RedCap/4G/3G/2G	2 x GE, 1 x SIM, 1 x Reset, 4 x Cell, 4 x DI/DO
H685frc-W	5G RedCap/4G/3G/2G	2 x GE, 1 x SIM, 1 x Reset, 4 x Cell, 2 x Wi-Fi, 4 x DI/DO
H685frc-W6	5G RedCap/4G/3G/2G	2 x GE, 1 x SIM, 1 x Reset, 4 x Cell, 2 x Wi-Fi, 4 x DI/DO
H685frc-W-RS232	5G RedCap/4G/3G/2G	2 x GE, 1 x SIM, 1 x Reset, 4 x Cell, 2 x Wi-Fi, 1 x RS232, 4 x DI/DO
H685frc-W-RS485	5G RedCap/4G/3G/2G	2 x GE, 1 x SIM, 1 x Reset, 4 x Cell, 2 x Wi-Fi, 1 x RS485, 4 x DI/DO
H685frc-W-G	5G RedCap/4G/3G/2G	2 x GE, 1 x SIM, 1 x Reset, 2 x Cell, 2 x Wi-Fi, 1 x GPS, 4 x DI/DO
H685frc-W-D60	5G RedCap/4G/3G/2G	2 x FE, 1 x SIM, 1 x Reset, 4 x Cell, 2 x Wi-Fi, 4 x DI/DO
H685frc-W-DIO	5G RedCap/4G/3G/2G	2 x GE, 1 x SIM, 1 x Reset, 4 x Cell, 2 x Wi-Fi, 4 x DI/DO
H685frc-P1	5G RedCap/4G/3G/2G	2 x GE, 1 x SIM, 1 x Reset, 4 x Cell, 2 x Wi-Fi, 4 x DI/DO

Remote Management System

Configure, monitor and securely manage your network endpoints remotely using the E-Lins NMS Cloud Management System.

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