only require the traces on one side (pins 1 to 85). The possibility of using only half the pin locations, combined with various height combinations, results in four different connector types that are available on the carrier card: Bay sizes: AMCs used in MicroTCA systems The AdvancedMC card is considered powerful enough that there are situations where the processing functionality is the only requirement. The MicroTCA standard is targeted at supplying a COTS chassis that will allow AMC cards to function without any AdvancedTCA carrier card. The function of the ATCA carrier board and of the ATCA shelf manager are concentrated on one board, which is called the MicroTCA Carrier Hub (MCH). On July 6, 2006, MicroTCA R1.0 was approved. Since this approval, companies like Advantech, Kontron, N.A.T., Annapolis Micro Systems, VadaTech Inc. , have launched AMC and MCH products. Versions of MicroTCA with fewer AdvancedMC card slots are informally known as NanoTCA and PicoTCA. References External links Official PICMG Site PICMG AMC page Introduction to Advanced TCA and the MicroTCA.4, Presentation 2012 by SLAC (English) The MicroTCA Summit coreIPM Project: Free & Open Source firmware for AMC Platform Management IPM430 CoreIPM firmware ported to TI MSP430. (open source) Example of a MicroTCA Carrier Hub (English) MicroTCA Overview Guide - vendor developed (English) Computer buses Telecommunications equipment