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Overview

GR531 is a compact industrial cellular router that provides reliable connectivity in rigorous conditions common in industries like smart meter, monitoring, and retail. This model is equipped with 4G LTE, WLAN, and two Ethernet ports, making it ideal for quickly setting up primary and backup connectivity with remote management capabilities.

Highlights

4G/3G seamless coverage WLAN/WAN/Cellular Auto-failover

Compact Size

Dual SIM

POE

Richlink Cloud FOTA/Remote configuration

Multiple network protocols

Wide temperature

VPN for Data Security

Technical Specification

Features

* Dual SIM backup

* 1×WAN+1×LAN or 2×LAN

* WLAN IEEE802.11 a/b/g/n/ac

* GNSS(optional)

Physical Specification

* Dimension: 82.4×78 ×28.3mm

* Weight: About 168g

* Casing material: Aluminum housing

* Mounting: Bracket

Operating Environment

* Normal Temp: -30℃ ~ +70℃

* Extreme Temp: -40℃ ~ +80℃

* Storage Temp: -40℃ ~ +85℃

* Humidity: 5%~95% RH

Mobile

* Modem: LTE Cat.4, LTE: Max. DL 150Mbps / UL 50Mbps;HSPA+: Max. DL 42Mbps / UL 5.76Mbps

* Status: Signal strength (RSSI), SINR, RSRP, RSRQ, EC/IO, RSCP, Bytes sent/received, connected band, IMSI, ICCID

* SIM Management: SIM select, SIM lock

* AutoAPN

* Network select, Band lock, Used band status display

WLAN

* Wireless Mode: IEEE 802.11 a/b/g/n/ac, Access Point (AP), Station (STA)

* WLAN Security: WPA_TKIP, WPA_AES, WPA_TKIPAES, WPA2_TKIP, WPA2_AES, WPA2_TKIPAES, WPAWPA2_TKIP, WPAWPA2_AES, WPAWPA2_TKIPAES, WPA3_AES, WPA2WPA3_AES, WPAWPA2WPA3_AES

* WPS: PIN code, PBC

* WLAN users: Up to 10 simultaneous connections

Ethernet

* WAN/LAN: WAN/LAN1, 10/100 Mbps, compliance with IEEE 802.3, IEEE 802.3u standards, supports auto MDI/MDIX

* LAN: LAN2, 10/100 Mbps, compliance with IEEE 802.3, IEEE 802.3u standards, supports auto MDI/MDIX

Serial Port

* Type: 1×RS-232 + 1 × RS-485 serial port

* Signal Definition: RX, TX, GND (RS-232) , A+, B-

* Baudrate: RS-232 (300-115200bps), RS-485 (300-115200bps)

Physical Interface

* Ethernet: RJ45 port×2, 10M/100M

* I/O: 1×Digital Input, 1×Digital Output on 4-pin power connector

* Status LED: Power, Signal, Net state, LAN1, LAN2, WLAN

* SIM: 2×SIM slot (Mini SIM – 2FF), 1.8 V/3 V; 1×eSIM QFN 5×6 (optional)

* Antenna: SMA Female: 2 for LTE ,1 for WLAN, 1 for GNSS

* Power supply: 4-pin industrial DC power socket

* Serial: 2×3-pin 3.5 mm socket

* Reset: Factory reset button/WPS

Power

* Connector: 4-pin industrial DC power socket

* Input voltage range: 9~30 VDC, reverse polarity protection, surge protection >33 VDC 10us max

* PoE (passive): Passive Alternative B PoE. Possibility to power up through LAN1 port , not compatible with IEEE802.3af, 802.3at and 802.3bt standards.

* Power consumption*: Idle: <2 W, Max: <10 W

Function

* WAN Failover: Automatic switching to available backup connection, WLAN, Mobile, Ethernet, each of which can be used as an automatic Failover

* Network Protocols: PPP, PPPoE, TCP, UDP, DHCP, DHCP RELAY, ICMP, NAT, HTTP, HTTPs, DNS, ARP, NTP, SSH, DDNS, etc.

* Routing: Static Routing, Policy routing, RIP, OSPF and BGP, etc.

* Firewall: NAT, DMZ, Port Forword, IP/MAC Filter, Access Control List

* VPN: PPTP/L2TP/GRE/IPSec

* Remote Management: HTTP, SSH, SNMP V2/V3, SNMP TRAP*, RICHLINK Cloud

STANDARD ORDER CODES

* GR531-JP-LWGS-S

- LTE: B1, B3, B8, B18, B19, B26, B39, B41

- WCDMA: B1, B6, B8, B19