Moxa OnCell 3120-LTE-1-EU-T Industrial LTE Cat 1 cellular gateway, B1/B3/B8/B20/B28, -30 to 70°C

Introduction

The OnCell 3120-LTE-1 Series is a set of reliable, secure, low power consumption LTE gateways with state-of-the-art global LTE Cat 1 coverage. These LTE cellular gateways provide reliable connections from remote serial and Ethernet devices to a cellular network so that your applications can be easily implemented for IIoT remote-access scenarios. With its efficient power saving features, the OnCell 3120-LTE-1 Series lowers power consumption to less than 40 mW when in standby mode which can be managed using schedules. To enhance industrial reliability, the OnCell 3120-LTE-1 features GuaranLink to ensure robust cellular connectivity.

Remote Access Gateway with VPN and Network Security

Managed by centralized IP management software, OnCell Central Manager
Secure and reliable VPN support with NAT/OpenVPN/GRE/IPsec functionality
Cybersecurity features based on IEC 62443-4-2

Industrial-grade Reliability

Rugged hardware design well suited for hazardous locations (ATEX, C1D2, IECEx)
GuaranLink for reliable cellular connectivity
-30 to 70°C wide operating temperature
Low power consumption: Less than 40 mW in standby mode

Moxa GuaranLink Technology

GuaranLink's 4-tier connection check helps cellular devices automatically detect connection issues, such as an unresponsive base station or deterioration of the connection quality below an acceptable level, and triggers the recovery process to resume cellular connections before these issues lead to a complete network failure. GuaranLink checks the following four key aspects of a cellular connection:

ISP Connection Check
The ISP initial connection check is the first step in GuaranLink's connection process, and is run whenever a cellular device registers with the base station. If the cellular device fails to register with the base station within the timeout period, the GuaranLink recovery process will be activated.

Cellular Connection-Alive Check
Cellular connection-alive checks are vital for cellular devices that continuously transmit data to the control center. The cellular connection check also includes a transmission connection check to provide higher connection reliability. In addition to detecting the data-transmission rate, the OnCell cellular devices keep the cellular connection alive by performing DNS lookups or sending ping commands to obtain the IP address of the intended receiver, remote host, and control center. Although the transmission connection check can increase airtime costs, it is necessary in some critical cellular applications to ensure continuous connectivity.

Packet-Level Check
Cellular devices need a reliable connection to the base station as well as the control center. The packet-level connection check ensures that there is a reliable link between a cellular device and the base station by periodically sending DNS lookups and remote-host pings, even when no data transmission is in progress, to check if a cellular network is available.

Transmission Connection Check
The OnCell cellular devices should receive data polling requests at regular intervals from remote hosts and the control center to keep the connection active. If no polling request is received within the time-out period, the GuaranLink recovery process is activated to ensure that the cellular connection is kept alive.