Kontron COMe Starterkit Eval T2 - Manual (Page 72)

COM Express Interfaces
As there are a large number of Ethernet PHY components and coupling transformers on the
market, it is strongly recommended that the Carrier Board vendor document the transformer used
in this interface circuit, in order to facilitate interoperability analysis between Modules and
carriers. It is also recommended that the COM Express Module vendor identify the specific PHY
component used in the LAN 0 interface on the Module.
PICMG ® COM Express ® Carrier Board Design Guide Rev. 2.0 / December 6, 2013
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