To whomever is knowledgeable on CL147 half-duplex,
I noticed odd (perhaps only to me) paragraph changes in D2.2 of .3cg in CL147, 147.1 second paragraph. It said
"The 10BASE-T1S PHY is specified to be capable of operating at 10 Mb/s in several modes. All
10BASE-T1S PHYs can operate a half-duplex PHY with a single link partner over a point-to-point link segment defined in 147.7, and, additionally, there are two mutually exclusive optional operating modes: a fullduplex point-to-point mode over the link segment defined in 147.7, and a half-duplex shared-medium mode, referred to as multidrop mode, capable of operating with multiple link partners connected to a mixing segment, defined in 147.8. The cabling supporting the operation of the 10BASE-T1S PHY is defined in terms of performance requirements between the attachment points (Medium Dependent Interface (MDI)), allowing implementers to specify their own cabling to operate the 10BASE-T1S PHY as long as the normative requirements included in this clause are met."
QUESTION: Red text and blue text above seem to contradict each other. I am assuming the red text "
can operate a half-duplex PHY with a single link partne" is in error. And the blue text is correct. Please confirm (or correct my assumption) Thank you!
best regards,
Yong Kim, affiliation: NIO
.