IEEE P802.3CV/D3.0-2020 pdf free.Draft Standard for Ethernet Amendment: Maintenance #1 5: Power over Ethernet.
Vhen the PD is in POWEROFF and V0 falls beloW Vta th the PD transitions to NOPOWER and may show a valid or invalid detection signature. and may or may not draw mark current, draw any class current. and show MPS. Inicroperability between PSE and PD is no longer guaranteed when thc nopower variable is TRUE or the PD has entered NOPOWER_INRUSH since the last time V1) was below VRC P1) max.
Change thi rd paragraph in 145.3.8.2 as follows:
A PD that has enabled Autoclass during Physical Layer classification and dre a pocr higher than Class I power during the period bounded by TUT() P1)1 and Tj() P1)2 or has requested Autoclass through DLL. shall not draw more power than Au(L-I%% p unless the PD ucccssfully negotiates a dit’krent power level up to the PD requested Class, through Daià Link Layer classification as defined in 145.5.
Change paragraph in 145.3.8.4.1 as follows:
For single-signature PDs assigned to Class 8 and for dual-signature PDs assigned to Class 5. when additional information is available to the PD regarding actual link section DC resistance between the PSE P1 and the PD P1. in any operating condition with any static voltage at the PT. the peak power shall not exceed muximum P1 for single-signature PDs and maximum PL)n pn-2prn for dual-signature PDs at the PSE P1 for inore than T(’t:T mm. as defined in Table 145—16 arn.iwith 5% duty cycle. Peak operating power shall not exceed 1,05 P0 p max for single-signature PDs and shall not exceed 1.05 X pip max for dual-signature PDs on each pairset. Pp p max refers to the maximuin power draw as permitted by 145,3.8,2.1.
A PD connected to a PSE that supports Autoclass can initiate an Autoclass request, to optimize the allocated power budget. through the aLldpXdot3LocAutoclassRequcsi (30,l2.2.lJ) attribute in the oLldpXdot3LocSystcms(iroup object class. This request will appear to the PSE as a change in the alJdpXdot3RcmPDAutoclassRcquest (30.12.3. I. 18o) attribute in the oLldpXdol3RemSystemsGroup object class. When the PD sends this request. it needs to be in a state where it consumes the amount of power that, from that moment onward, will be the maximum power drawn.IEEE P802.3CV/D3.0 pdf download.