The µGUARD is a Firewall / Router / Access Point with long-term availability. The design is optimized for low power consumption, small size (SwaP) and highest flexibility, plus the capability for extended temperature. The µGUARD can be expanded with additional 10 ports over the µMAGBES (managed 10-port switch). The proven GUARD solution allows to operate the Firewall / Accesspoint in harsh environments like public transportation systems, rough industrial areas, or in defense applications.

  • Wide Input voltage range (8 – 36VDC)
  • 3 x 1GBit Ethernet ports
  • 10/100/1000Mbit support
  • Easy integration of 10-port switch (µMAGBES)
  • Proven OpenWRT operating system
  • 2 x mPCIe slot
  • 1 x M.2 slot with dual SIM support


Board Key Data
Processor Dual Core 1.0GHz ARM SoC
Memory 2GByte DDR3L with ECC, 512MByte NAND Flash
Dimensions 75mm x 115mm
Power 8 up to 36VDC <6W (estimate without extensions)
Ethernet 3 x Ethernet 10/100/1000MBit, Auto MDI/MDIX, available on lockable header
mPCI/mSATA 1 x mPCI/mSATA Combo Slot with lockable header for SIM card
mPCI 1 x mPCI Slot with lockable header for SIM card
M.2 Slot 1 x M.2 Slot Type B Key, for socket 2 USB3.0 WWAN, Type 3042-S3-B with dual SIM support
USB 2 x USB2.0 on lockable headers
Operating Temperature -20°C to +60°C / -4°F to 140°F
Extended Temperature -40°C to +85°C / -40°F to 185°F (optional)
Storage Temperature -45°C to +90°C / -49°F to 194°F
Humidity 5% – 95% none condensing, optional coating available
Standard Compliance
The µGUARD Family is designed to meet or exceed the most common standards. Particular references are:
EMC EN 55022, EN 55024, EN 61000, MIL-STD-461E
Shock & Vibration EN 60068
Environmental & Safety EN 50155, MIL-STD-810G, EN 60601, EN 60950
Approval List CE, IEC 60945, IACS E10

µGUARD-A3OH: Firewall with M.2 and 2x mPCI, with WiFi & additional Flash (115 x 75mm)

µGUARD-A12RD: Firewall / Router / Access Point with 12x RJ45 ports and up to 4 SIM card slots

µGUARD-A3RD: Firewall / Router / Access Point with 3x RJ35 ports and up to 4 SIM card slots

µGUARD-A3FMX: Firewall for railway applications with 3x M12 X-coded and LTE

  • MPL