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Tiny, rugged Bay Trail COM has wide-range power

Feb 9, 2016 — by Eric Brown — 418 views
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Axiomtek’s “CEM846” is a Linux-ready COM Express Type 10 Mini module with a choice of Atom E3800 SoCs, -40 to 85°C support, and wide-range power.

Last April, Axiomtek launched a trio of Intel Bay Trail COM Express modules, including a CEM841 Type 2 Basic (125 x 95mm) COM, as well as CEM842 and CEM843 Type 6 Compact (95 x 95mm) modules. Now the company has unveiled a smaller, 84 x 55mm CEM846 COM Express Type 10 Mini module, running the Bay Trail Intel Atom E3800. Like the CEM843, it offers industrial -40 to 85°C support, in this case as a standard feature.



COM Express form-factors compared, left to right: Mini (CEM846), Compact (CM842), and Basic (CEM841)
(click images to enlarge)

The CEM846 more directly updates or augments a CEM840 COM Express Type 10 Mini module that escaped our attention when it launched in Nov. 2014. The modules appear to be identical, including standard -40 to 85°C and wide-range (4.75V to 20V) power support. However, the new CEM846 adds a pair of COM ports.


CEM846, front and back
(click images to enlarge)

Specs for the CEM846 are also quite similar to the larger COM Express Type 6 and Type 2 modules noted above. The main exception is the CEM846’s lack of a VGA port, half the maximum RAM at 4GB, and two fewer PCIe interfaces compared to the six-slot CEM842 and CEM843.

Applications for the CEM846 are said to include IoT, medical, transportation, security, military, and portable devices. The module offers a generic Linux Kernel 3.13.0-32-generic x86_64 that supports “any popular Linux OS, such as Ubuntu, Red Hat, etc.,” says Axiomtek.

Specifications listed for the Axiomtek CEM846 include:

  • Processor — Intel Atom E3800 Bay Trail (quad-core, 1.91GHz Atom E3845, dual-core, 1.75GHz Atom E3827, or single-core, 1.46GHz Atom E3815); Intel Gen 7 HD graphics
  • Memory — 2GB or 4GB DDR3L RAM
  • Display:
    • LVDS 18/24-bit single-channel
    • DDI (DP, HDMI, DVI)
    • Dual display support at up to 4K
  • Networking — Gigabit Ethernet controller (Intel I210AT) with Wake-on-LAN, PXE boot
  • Other I/O:
    • 8x USB 2.0
    • 1x USB 3.0
    • 2x SATA-300
    • 2x serial TX/RX
    • LPC, SMBus
    • DIO (4x in, 4x out)
    • HD audio
  • Expansion — 4x PCIe x1 (3x when LAN is connected)
  • Other features — Watchdog; hardware monitoring; optional heatspreader, heatsink, ATX baseboard
  • Power — 4.75V to 20V or ATX 4.75V to 20V/+5VSB
  • Operating temperature — -40 to 85°C
  • Dimensions — 84 x 55mm COM Express Compact Type 10 Mini
  • Operating system — Linux Kernel 3.13.0-32-generic x86_64, supporting major Linux distros; Windows

 
Further information

The CEM846 module will be available soon, says Axiomtek. More information may be found at Axiomtek’s CEM846 product page.
 

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