Changes between Version 9 and Version 10 of newport/errata


Ignore:
Timestamp:
03/19/2020 03:44:41 PM (3 years ago)
Author:
Tim Harvey
Comment:

added NP9 Reverse Current Susceptibility

Legend:

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  • newport/errata

    v9 v10  
    149149 * GW630x-C.2/D.3/E.1 (PCB 02210153-02, PCB 02210153-03, PCB 02210153-04)
    150150 * GW640x-B.1 (PCB 02210151-01)
     151
     152[=#np9]
     153== NP9 Reverse Current Susceptibility
     154Issue:
     155 * While 'reverse polarity' protection exists on most Gateworks boards allowing Vin polarity reversal to not damage boards, 'reverse current' protection does not exist on certain boards which could cause board damage under specific situations. A condition which would allow for such damage is if a board was connected to a Power-Over-Ethernet supply (regardless of if it is enabled for Active PoE) as well as at the same time powered with a lower voltage supply connected to board input power (ie barrel jack or 2-pin Vin aux connector). For example powering a board with 48V PoE at the same time as a 24V supply on the barrel jack would cause power to flow from the higher PoE positive rail back through the supply connected to the barrel jack which could put the supply in an over-current failure mode that sinks current directly to ground damaging the Gateworks board.
     156
     157Affected Products:
     158 * GW6905-A (PCB 02210207-00)
     159 * GW6904-A (PCB 02210206-00)
     160 * GW6902-A (PCB 02210209-00)
     161 * GW640x-A/B/C (PCB 02210154-00, 02210154-01, 02210154-02)
     162 * GW630x-A/B/C/D/E (PCB 02210153-00, 02210153-01, 02210153-02, 02210153-03, 02210153-04)
     163 * GW620x-A/B (PCB 02210152-00, 02210152-01)