G51 - QorIQ Communications CPU Board (Product Discontinued)

The G51 single-board computer unites the benefits of CompactPCI Serial and the interface capabilities and calculation power of a QorIQ CPU. Being based on an NXP quad-core QorIQ P3041 processor, the 3U, 4 HP SBC provides a large number of high-speed serial interfaces both at the front and at the CPCI-S.0 rear connectors.

Three Gigabit Ethernet channels at the front and another standard port at the rear provide solid connectivity. The three front ports can also be routed to the rear, so that a maximum of four Ethernet channels are available on the backplane. This routing option is a standard feature, and can be set in the U-Boot boot loader.

In a similar way, the G51 single-board computer comes with two SATA 2.x channels, where one can either be used for an onboard mSATA 2.x disk, or as a second port at the rear - also switchable via U-Boot. SGPIO is available, too.

The G51 comes with one USB 2.0 front port, one USB 2.0 configuration port and five standard rear USB 2.0 ports. The USB front interface can be led to the rear as a hardware option, for a total of six USB backplane channels. Three PCI Express links (two x2 and one x4) add another important column of CompactPCI Serial features to the G51's rear I/O.

Its abundant connectivity, flexible configuration options and multi-core computing performance make the G51 a universal off-the-shelf platform for all kinds of communication and processing tasks. Data acquisition, data encryption, simulation and process control systems are only a few examples. Suitable CompactPCI Serial peripheral cards are available to add specialized functions in a modular system where necessary.

Apart from its connectivity, the card comes with fast DDR3 RAM, a microSD card slot, a number of board management functions and Linux BSP support. All components are soldered for protection against shock and vibration and withstand an extended operating temperature of -40°C to +85°C. As an option, the board can be equipped with M12 Ethernet front connectors. The G51 is also ready for coating so that it can be used in humid and dusty environments.

All this makes the G51 a perfect choice for railway, aerospace or marine applications, but also for fields like automation or power & energy, where computers face harsh environments.


  • Single-board computer with up to 4 Gb Ethernet
  • P3041 NXP QorIQ quad-core PowerPC processor
  • 4 HP system master and peripheral slot
  • PICMG CPCI-S.0 CompactPCI Serial
  • Up to 8 GB DDR3 SDRAM soldered, ECC
  • Standard front I/O: 3 Gb Ethernet, 2 USB 2.0
  • Standard rear I/O: 3 PCIe, 4 Gb Ethernet, 5 USB 2.0, 2 SATA (3 Gb)
  • -40 to +85°C with qualified components
  • Compliant to EN 50155 (railways)


The following CPU types are supported:
  • NXP QorIQ P3041, quad core, 1.2 GHz, 600 MHz memory bus, with encryption
  • NXP QorIQ P3041, quad core, 1.2 GHz, 600 MHz memory bus, without encryption
  • System RAM
    • Soldered DDR3
    • With or without ECC support
    • 2 GB
  • Boot Flash
    • 32 MB
  • FRAM, non-volatile
    • 8 KB
  • Please see Ordering Information for available standard versions.
Mass Storage
The following mass storage devices can be assembled:
  • microSD card
  • mSATA disk
  • eMMC device, soldered
Front Interfaces
  • USB
    • One Type A connectors, USB 2.0 (480 Mbit/s), host interface
    • One configuration port implemented as a USB 2.0 (480 Mbit/s) device interface
  • Ethernet
    • Three RJ45 connectors, 1000BASE-T (1 Gbit/s), or
    • Three M12 connectors, 1000BASE-T (1 Gbit/s)
    • All Ethernet front ports can be switched to the rear using U-Boot for a total of four rear channels
    • Two link and activity LEDs per channel
    • IEEE 1588 support (PTP, Precision Time Protocol) for 3 front/rear ports and 1 additional rear port
  • Front-panel LED for board status
  • Blue front LED for hot plug
  • Reset button
Onboard Interfaces
Two onboard user LEDs
Rear Interfaces
  • Compatible with CompactPCI Serial PICMG CPCI-S.0 Specification
  • SATA
    • Two channels, SATA Revision 2.x (3 Gbit/s) (reduces to one port if the link to the mSATA disk is required, can be switched in U-Boot)
  • Serial GPIO (SGPIO)
    • One channel, compliant with SFF 8485 specification
  • USB
    • Five channels, USB 2.0 (480 Mbit/s), host
  • Ethernet
    • One channel, 1000BASE-T (1 Gbit/s)
    • All front ports can be switched to the rear using U-Boot for a total of four rear channels
  • PCI Express
    • Two x2 links (1000 MB/s per link), PCIe 2.x (5 Gbit/s per lane)
    • One x4 link (2 GB/s per link), PCIe 2.x (5 Gbit/s per lane)
Supervision and Control
  • Board controller
  • Watchdog timer
  • Temperature measurement
  • Real-time clock with supercapacitor or onboard battery backup
    • Data retention of supercapacitor: 72 hours
  • Hot-plug capability
    • Hot-pluggable when used as a peripheral board
Backplane Standard
  • CompactPCI Serial PICMG CPCI-S.0 Specification
  • System or peripheral slot
Electrical Specifications
  • Supply voltage: +12 V (-5%/+5%)
  • Power consumption
    • +12 V: 1.2 A typ., 1.5 A max.
Mechanical Specifications
  • Dimensions: 3U, 4 HP
  • Weight: tbd. g (model 02G051-00)
Environmental Specifications
  • Temperature range (operation):
    • -40..+85°C
    • Airflow: min. 1.5 m/s
  • Temperature range (storage): -40..+85°C
  • Cooling concept
    • Air-cooled, or
    • Conduction-cooled in MEN CCA frame
  • Relative humidity (operation): max. 95% non-condensing
  • Relative humidity (storage): max. 95% non-condensing
  • Altitude: -300 m to +3000 m
  • Shock: 50 m/s², 30 ms (EN 61373)
  • Vibration (function): 1 m/s², 5 Hz - 150 Hz (EN 61373)
  • Vibration (lifetime): 5.72 m/s², 5 Hz - 150 Hz (EN 61373)
  • Conformal coating on request
  • 13 981 h @ 40°C according to IEC/TR 62380 (RDF 2000) (model 02G051-00 with supercapacitor)
  • 480 063 h @ 40°C according to IEC/TR 62380 (RDF 2000) (calculated for model 02G051-00 without supercapacitor)
  • Flammability (PCBs)
    • UL 94 V-0
  • Electrical Safety
    • Insulation measurement test according to EN 50155 (
    • Voltage withstand test according to EN 50155 (
    • Information technology equipment test according to EN 60950
EMC Conformity
  • EN 55022, IEC 61000-6-4 (radio disturbance)
  • IEC 61000-4-2 (ESD)
  • IEC 61000-4-3 (electromagnetic field immunity)
  • IEC 61000-4-4 (burst)
  • IEC 61000-4-5 (surge)
  • IEC 61000-4-6 (conducted disturbances)
Software Support
BIOS/Boot Loader
U-Boot Universal Boot Loader