ETX (form factor)
|This article does not cite any references or sources. (September 2011)|
ETX, standing for Embedded Technology eXtended, is a highly integrated and compact 95 × 125 mm (3.7 × 4.9 in) computer-on-module (COM) form factor that can be used in a design application much like an integrated circuit component. Each ETX COM integrates core CPU and memory functionality, the common I/O of a PC/AT (serial, parallel, etc.), USB, audio, graphics, and Ethernet. All I/O signals as well as a full implementation of ISA and PCI buses are mapped to four high-density, low-profile connectors on the bottom side of the module.
Evolution of the ETX standard
One of the fastest-growing concepts in the embedded world is the "Computer-On-Module" or COM. One of the principal COM implementations available in the market is the Embedded Technology eXtended (ETX) specification, first developed by Kontron (formerly *JUMPtec) in the early 2000.
As technology evolves, the ETX standard has undergone further development in scalability and performance. In April 2006, the members of the ETX Industrial Group released the latest generation of the ETX 3.0 specification. The ETX Industrial Group (www.etx-ig.org) is an independent association of companies and individuals that work to exchange knowledge about ETX, communicate with users of the ETX world, monitor trends and ensure the ETX standard fulfills the market’s needs. Membership is open to companies all over the world who develop and produce ETX modules. Members of the ETX Industrial Group include Kontron Embedded Modules GmbH, Advantech, MSC Vertriebs GmbH, ADLINK Technology Inc., Avalue Technology Inc., SECO Srl, Arbor Technology Corp., Axiomtek Co., Blue Chip Technology, AAEON Technology Inc., AEWIN Tecnologies IBase, Honeywell – CMSS and Portwell.
|Dimensions||95 × 114 mm (3.7 × 4.5 in)||95 × 114 mm (3.7 × 4.5 in) (ETX footprint)||
|Legacy1 support||Full legacy||Legacy except ISA||Legacy except ISA|
|PCI Express support||-||4 Lanes||up to 6 Lanes (basic)|
|PCI Express Graphic support||-||-||up to 16 Lanes|
|IDE support||2 IDE, 2 SATA2||2 IDE, 4 SATA||IDE, 4 SATA|
|USB support||4 USB||6 USB||8 USB|
|Audio support||Line In/Out, Mic||AC'97, Line In/Out, Mic||AC'97, Line In/Out, Mic, AC'97 digital, HDA|
|Power||5V, 5VSB||5V, 5VSB||12V, 5VSB|
- Connector X1: PCI bus, USB Audio
- Connector X2: ISA BUS
- Connector X3: VGA, LCD, Video, COM 1, COM2, LPT/Floppy, IrDA, Mouse, Keyboard
- Connector X4: IDE 1, IDE 2, Ethernet, miscellaneous
- SATA: Two ports via connector on the top side (as of version 3.0)