Changes between Version 5 and Version 6 of newport/errata


Ignore:
Timestamp:
10/24/2018 08:31:53 PM (6 years ago)
Author:
Ryan Erbstoesser
Comment:

posted np5 for fan tach

Legend:

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  • newport/errata

    v5 v6  
    7272 * GW630x-D (PCB 02210153-03)
    7373
     74
     75[=#np5]
     76== NP5 Fan Tachometer improvements
     77
     78Issue:
     79 * Certain fans either drive the TACH signal to an inappropriate voltage level for the GSC or produce too much of a load for the GSC to accurately measure TACH pulses.
     80
     81Resolution:
     82 * A FET added to the TACH signal provides voltage protection and isolates the load of the fan allowing the GSC to properly count TACH pulses. The TACH drive on the fan must be capable of sinking 5mA of current to assert the pulse to the GSC.
     83
     84Affected Product:
     85 * GW640x-A (PCB 02210154-00)
     86 * GW630x-B/C/D (PCB 02210153-01, PCB 02210153-02, PCB 02210153-03)
     87 * GW610x-A (PCB 02210151-00)
     88
     89Resolved in:
     90 * GW640x-B (PCB 02210154-01)
     91 * GW630x-E (PCB 02210153-04)
     92 * GW620x-A (PCB 02210152-00)
     93 * GW610x-B (PCB 02210151-00)
     94
    7495[=#np6]
    7596== NP6 GW640x Ethernet LED's non-functional