GigaBlox Rugged -40°C to +100°C GigaBit Switch

Currently in manufacture
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Expected release date is 10th May 2023


The Smallest Industrial Gigabit Ethernet Switch

GigaBlox Rugged is a very small layer 2 unmanaged and managed ethernet switch that fits four 10/100/1000Mbps copper ethernet ports in an ultra-compact 50mm x 55mm form factor. GigaBlox Rugged is designed to be a more rugged and more capable upgrade to our GigaBlox product and is designed for space, weight and price-sensitive (SWaP) industrial, mobile and military applications.

GigaBlox Rugged has an input voltage range of 10V to 60V with transient, overvoltage, and reverse polarity protection on board, meaning it can be dropped directly into a system powered by unregulated bus voltage. This wide input voltage range is particularly advantageous in motor control systems where additional voltage headroom is required due to motor voltage transients.

The -40°C to +105°C ambient operation range is achieved by using automotive/military-grade components whose operation is rated for -40°C to +125°C.

GigaBlox Rugged is also coated with a silicone conformal coating (422C) to provide basic ingress protection.

Annotations of GigaBlox Rugged showing programmable RGB, automotive chip, voltage input range, port connectors and port activity LEDs

Annotations of GigaBlox Rugged showing programming header and onboard flash

GigaBlox Rugged does not require any configuration and works “out-the-box” as an unmanaged layer 2 switch. More advanced management features are also possible thanks to the powerful embedded VSC7512 ethernet switch IC from Microsemi. Such features can be enabled by customizing the boot image using reference software from Microchip. 

GigaBlox Rugged supports end-to-end IEEE1588 Precision Time Protocol packets by automatically updating the PTP correction field for all PTP packets received.

Initial performance tests for GigaBlox Rugged can be found here.

Block Diagram

Block diagram of the rugged gigabit ethernet switch

(Please note, the previous SKU of this board was BB-GGR-C-1)



 Input Voltage Range 8.5-60V (reverse protected)
Power Consumption 1W (Idle), 4W (Max)
Ports 4 x 10/100/1000Mb ports
Operating Temperature -40 to +100°C
Storage Temperature -55 to +125°C
Dimensions 50mm x 55mm x 18mm


Supported protocols 10/100/1000BASE-T
Number of PHY Ports 4 x 10/100/1000BASE-T non-blocking ports
Number of non-PHY ports 1 x 1G SGMII, 1 x 2.5G SGMII
Frame buffer Jumbo frame support
Packet buffer 1.75Mbits
Boot image VSC6825 unmanaged software (openly available), F5 unmanaged, loaded onto onboard IS25LQ040B flash
Programming method SPI Flash programming via Tag-Connect 10 pin header or STM32L011D4P7 programming
Indicator LEDs 4 x Onboard LEDs and broken out onto header, 1 x RGB (controlled by STM32)
HS Tariff Code 8517620000



GigaBlox Rugged Rev A/B Datasheet

GigaBlox Rugged Rev C Datasheet

GigaBlox Rugged Programming Note

GrabCAD 3D Models

Dimensional Drawings

GigaBlox Rugged Dimensional Drawing PDF

GigaBlox Rugged Dimensional Drawing DXF BB-GGR-C-1

Electronics > Networking