Overview
The Robustel R1520 Dual-SIM Cellular VPN Router from Robustel is a versatile 4G router with 5 x Ethernet ports, GPS and E-mark certification for in-vehicle use. Other hardware features include optically isolated digital inputs and outputs as well as a 10-bit analogue input capable of interfacing directly with sensors in the range of 0 to 24Vdc or 0 to 20mA.
R1520 also has a 2-wire RS485 interface for connection to legacy instruments with full support for Modbus. The RS232 port features RTS/CTS lines so the product can accommodate applications that require hardware handshaking.
Despite being cost-effective, the R1520 is a powerful router with high packet-forwarding capability – way beyond the typical requirements of LTE CAT4 networks. The Linux based Operating System, RobustOS, has been developed entirely in-house which leads to a very high standard of technical support and infrequent firmware updates due to modular nature of the OS. Many unique software innovations are built on top of RobustOS, these include:
RobustVPN – highly flexible hosted VPN service so customers can easily enjoy a “fixed IP router”
RCMS is Robustel’s free router monitoring service compatible with the R1520. It provides a quick location overview on a map, displaying data usage, signal strength, and current network details per router. Additionally, it supports over-the-air updates for firmware, configuration, and apps, ensuring reliable deployment.
For a free trial of RCMS, visit: https://rcms-cloud.robustel.net
KEY FEATURES
- Cost-effective & high performance 3G/4G router
- Rugged design with 9 to 36Vdc power
- “Global” 4G version available
- E-mark certification for in vehicle use
- Optically isolated digital IO
- 10-bit Analogue interface for direct sensor connections
- Supports Dual SIMs & Wifi/Ethernet as WAN
- Cellular keep-alive and fast failover
- Extensive range of software “apps” for enhanced functionality
- RobustVPN – hosted service providing a “fixed IP” router
- IPsec/OpenVPN/GRE/L2TP/PPTP/DMVPN supported
- Extensive global certifications
Specifications
Cellular Interface |
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Number of antennas | 2 |
Connector | SMA-K |
SIM | 2 Mini SIM (2 FF) |
Ethernet Interface |
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Number of ports | 5 x 10/100 Mbps, 5 LAN by default, can be configured as 1 WAN + 4 LAN |
WAN port | Support 802.3 af & 802.3at PD feature on ETH0 |
Magnet isolation protection | 1.5 KV |
WiFi Interface |
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Number of antennas | 2 |
Connector | RP-SMA-K |
Standards | 802.11 b/g/n, supports AP and Client modes |
Frequency bands | 2.4 GHz |
Security | WEP, WPA, WPA2, WPA3 |
Encryption | 64/128 AES, TKIP |
DI/DO |
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Type | 1 x DI + 1 x DO, wet contact |
Isolation | 3 KV |
Socket form | 2 * 3-pin 3.5 mm female socket |
Level | 3 to 30V DC = HIGH, 0 to 1 V DC = LOW |
Absolute maximum VDC | 30V DC(DI/DO) |
Absolute maximum ADC | 10mA(DI/DO) |
Analogue Input |
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Type | 1 X AI (can be configured as voltage type or current type) |
Voltage input range | 0 to 24 Vdc |
Current input range | 4-20 mA (current-type input requires external resistance, and finally measured by voltage) |
Socket form | 2 * 3-pin 3.5 mm female socket |
Signal definition | AI,AGND |
Serial Port |
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Type | 1 x RS232 + 1 x RS485 |
Socket form | 2 x 4-pin 3.5 mm female socket |
Signal definitions | RS232: RXD, TXD, SGND, RTS, CTS
RS485: Data+ (A), Data- (B), GND |
Other Interfaces |
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1 x GPS interface (Optional, depending on the cellular module) | |
1 x 480Mbps high-speed USB2.0 interface(Type A, 5V, 500mA) |
Others |
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Reset button | 1 x RST |
RTC | External RTC clock , Backup energy storage capacitor can be maintained for 2 days |
LED indicators | 1 x RUN, 1 x MDM, 1 x USR, 1 x RSSI, 1 x WiFi |
Watchdog | Built-in |
Software (Basic features of RobustOS) |
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Network protocols | PPPoE, TCP, UDP, DHCP, NAT, DNS, NTP, SMTP, Telnet, VLAN, SSH2, DDNS, etc. |
VPN tunnel | IPsec, OpenVPN, GRE, WireGuard |
Firewall | DMZ, anti-DDoS, Filtering (IP/Domain name/MAC address), Port Mapping, Access Control |
Remote Management | Web, CLI, SMS |
App Center (Available Apps for RobustOS) |
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Apps* | L2TP, PPTP, DMVPN, VRRP, QoS, Captive Protal, WLAN Multi AP, SNMP, Language, RCMS |
*Request on demand. For more Apps please visit www.robustel.com. |
SDK |
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Supported programming language | C, C++ |
Flash available for SDK | 4 MB |
RAM available for SDK | 64 MB |
Power Supply and Consumption |
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Connector | 2 pin 3.5 mm socket with lock |
Input Voltage | 9 ~ 36 VDC |
PoE-PD Voltage | Possibility to power up through ETH0
40 ~ 57 VDC |
Power consumption | Idle: 250 mA@12 V
Data link: 890 mA (peak) @12 V |
Physical Characteristics |
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Ingress protection | IP30 |
Housing & Weight | Plastic, 250 g |
Dimensions | 105 x 90 x 46 mm |
Installations | Desktop, wall mounting and 35 mm DIN rail mounting |
Operating temperature | -25 ~ +70 °C |
Storage temperature | -40 ~ +85 °C |
Relative humidity | 5 ~ 95% RH |
Regulatory and Type Approvals |
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Environmental | RoHS2.0, WEEE |
EMI | EN 55032 Conducted Emission Class B
EN 55032 Radiated Emission Class B |
EMS | EN 61000-4-2 (ESD) Contact Level 2, Air Level 3 EN 61000-4-3 (RS) Level 2 EN 61000-4-4 (EFT) Level 2 EN 61000-4-5 (Surge) Level 3 EN 61000-4-6 (CS) Level 2 EN 61000-4-11 (DIP) Level 2 |
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