Specifications
CPU
Quad-core Arm Cortex-A53 @ 1.6 GHz (NXP i.MX8M Plus)
RAM
2 GB DDR4
Storage
16 GB eMMC (soldered, vibration resistant)
Cellular (5G variant)
5G NR SA/NSA: n1/n2/n3/n5/n7/n8/n12/n13/n14/n20/n25/n26/n28/n29/n30/n38/n40/n41/n48/n66/n71/n75/n76/n77/n78/n79
Cellular (4G variant)
LTE FDD B1-B8, B12-B14, B17-B20, B25/B26, B28-B30, B32, B66, B71; LTE TDD B34, B38-B43, B48
SIM
Dual SIM with failover
Ethernet
2x Gigabit Ethernet (10/100/1000 Mbps)
Serial
2x RS-232/485 software configurable, 300-115200 bps, 6-pin 3.5 mm terminal block
Digital I/O
2x DI + 2x DO, wet contact, 8-pin 3.5 mm terminal block with lock
DI/DO Limits
+30 VDC absolute max, 100 mA absolute max
Power Input
12/24/48 V DC; 9-60 VDC range with reverse-polarity and surge protection
Power Consumption
Idle 5 W at 12 V; max 15 W at 12 V
Operating System
RobustOS Pro (Debian 11 based, long-term support)
Containerisation
Docker support for edge applications
Ingress Protection
IP30
Housing
Metal, 567 g
Dimensions
49 x 105 x 128 mm
Mounting
Desktop, wall mount and 35 mm DIN rail
Operating Temperature
-40 °C to +70 °C
Storage Temperature
-40 °C to +85 °C
Humidity
5-95% RH non-condensing
Compliance
RoHS 2.0; CE / RCM on selected variants
Overview
The Robustel EG5120 is a dual-SIM 5G/4G industrial edge AI gateway built on the NXP i.MX8M Plus platform. A quad-core Cortex-A53 at 1.6 GHz with 2 GB DDR4 and 16 GB of soldered eMMC provides the headroom for local data processing and edge inference rather than cloud round-trips.
It is designed as an application platform, not just a modem: RobustOS Pro is Debian 11 based with long-term support and Docker containerisation, so analytics, protocol conversion and inference workloads can be deployed as containers on the gateway itself. Robustel positions the device for real-time visual quality inspection and high-frequency vibration monitoring without saturating cellular backhaul.
Industrial interfaces are provided on locking terminal blocks: two software-configurable RS-232/RS-485 ports, two digital inputs and two digital outputs at up to 30 VDC, plus two Gigabit Ethernet ports. Power accepts 9-60 VDC with reverse-polarity and surge protection, and the metal IP30 housing is rated from -40 °C to +70 °C for DIN-rail, wall or desktop mounting.
Key Benefits
5G and 4G variants with dual-SIM failover. Docker on Debian 11 for edge application hosting. -40 °C to +70 °C metal IP30 housing. Galvanically robust I/O on locking terminal blocks.
Applications
Industrial edge inference and visual inspection, predictive maintenance on rotating machinery, smart metering and energy monitoring, medical and POS kiosks, building automation, and remote asset telemetry over cellular.
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