Changes between Version 27 and Version 28 of gsc


Ignore:
Timestamp:
10/24/2018 10:18:40 PM (6 years ago)
Author:
Bobby Jones
Comment:

Fixed mention of 9 hour battery checking intervals to 18 hours (actually 18.2...)

Legend:

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  • gsc

    v27 v28  
    251251 - Ventana GW5224-D+
    252252
    253 When a GSC is running from the GSC battery it re-freshes the battery voltage reading a second or so after it starts running off the battery (ie after board power is removed) as well as every 9 hours.
     253When a GSC is running from the GSC battery it re-freshes the battery voltage reading a second or so after it starts running off the battery (ie after board power is removed) as well as every 18 hours.
    254254
    255255
    … …  
    13031303 * !Laguna/Ventana ('''does not apply to Newport boards'''): If battery is replaced while board power is off, '''you must apply board power momentarily afterwards to reset the GSC into the proper operational state. If power is not applied the drain on the battery will be fairly large and will deplete the battery within about 3-4 weeks.'''.
    13041304  * To verify the GSC current consumption, you can measure the voltage across a diode (+ probe on anode, - probe on cathode). The voltage across the diode with no power applied to the board should be approximately 300mV. If you see something in the 400mV range that means the GSC is not reset properly or there is some type of contamination causing excessive current draw. Contact support with your serial number for specifics on which diode ( support@gateworks.com ).
    1305  * Note that bat rail voltage cannot be measured via Linux software as shown above until board power is turned off for one second or more (a second time when battery is replaced/GSC reset). When power is off, we monitor the bat voltage every 9 hours. When the board is fully powered on and booted into Linux, the bat reading cannot be continually updated and reports the last read voltage when the board was last powered off.
     1305 * Note that bat rail voltage cannot be measured via Linux software as shown above until board power is turned off for one second or more (a second time when battery is replaced/GSC reset). When power is off, we monitor the bat voltage every 18 hours. When the board is fully powered on and booted into Linux, the bat reading cannot be continually updated and reports the last read voltage when the board was last powered off.
    13061306 * The GSC can operate down to a battery voltage of 2.2V. If the battery goes below this erratic behavior can result and the battery should be either removed (operate without battery) or replaced.
    13071307 * A fresh battery typically has a voltage ranging from 2.8 to 3.1V (also depends on temperature). The battery discharge rate is fairly flat but once it is discharged it can decay rapidly. Note that when the board is powered, the 3.3V power supply supplies power to the GSC and the battery will not be drained. This should be factored in when determining battery lifetime.