GMX-CS_2026A. Order it, integrate it, certify your application.

A specific hardware configuration of the certified GMX-CS Generic Product: the configured vital boards, the non-vital communication computer, the backplane and the subrack. The safety-related part is inherited unmodified from the certified baseline.

GMX-CS_2026A 6U 19-inch subrack, perspective view
URL  /geminix/gmx-cs-2026a/StatusSpecificationCommunication computer
Certification in progressSafety baseline certified
CERTIFICATION

Status, stated plainly.

Assessor and target date are stated as soon as they are fixed, and the block is kept current.

The vital items of GMX-CS_2026A are a configuration of the already certified GMX-CS Generic Product, reused as they are. What is new in this product is non-vital or passive: the communication computer, the backplane, the subrack and the mechanics. That is the reason the certification effort is bounded, and it is the honest version of the claim.

[To be completed before publication: scope of the certification, name of the assessor, expected completion date, and what may be stated publicly.]

WHAT IS IN THE RACK

The configuration.

The number of input and output boards is not arbitrary. The published configuration table answers the first question every integrator asks.

Power supply2 × PSU110, autostart: powered as soon as main power is applied, no power button
Safety computer1 × CPU-S, nodes A and B, GeminiX-Cores in FPGA on CPU-S, VDI and VDO
Vital inputsn × VIN24, thresholds Vth(H) = 18.3 V and Vth(L) = 9.8 V at nominal 24 V
Vital outputsn × VOUT24, safe state de-energised low
Communication computer1 × CPU-C, non-vital, COM-Express type 10
Mechanics6U 19-inch subrack with backplane, front panels and heatsinks
SoftwareGeminiX-OS, reused as certified
FirmwareGeminiX-Cores, in FPGA across CPU-S, VDI and VDO
GMX-CS_2026A installed in a 19-inch rack
CPU-C

The non-vital computer is where integration happens.

CPU-C is what most differentiates this product in a real installation.

  • COM-Express type 10 module above 800 MHz, at least 2 GB DDR
  • At least 16 GB SSD with Linux, optional additional storage
  • Five Ethernet MAC controllers, one on the module and four added
  • Eight UART transceivers: 2 × RS232, 2 × RS422, 4 × RS485
  • Optional GPS module with front panel antenna connector
  • Optional temperature sensors, EEPROM, real-time clock, GPIO expander
  • Maximum power consumption within 30 W
Placeholder image for NEAT / CPU-C / BLOCK DIAGRAMNEAT / CPU-C / BLOCK DIAGRAM

Diagram: the CPU-C functional block diagram, showing the COM-Express module, the Ethernet switch, the usb2eth and pcie2eth devices, the mPCIe slots and the front panel interfaces.

APPLICATIONS

Where it fits.

Electronic Interlocking

As the vital computer, with GRIO at the field interface.

National ATP

Wayside and on-board vital computing to national specifications.

ERTMS vital computers

Including the RBC Generic Product in a redundant configuration.

On-board applications

Rolling stock vital computing within the environmental envelope.


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