Changes between Version 18 and Version 19 of TBR/BSP/Mbx860_002


Ignore:
Timestamp:
Dec 17, 2011, 2:55:47 AM (8 years ago)
Author:
Ivaylo
Comment:

/* Battery */

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  • TBR/BSP/Mbx860_002

    v18 v19  
    5151= Battery =
    5252
    53 =  =Block diagram==
     53
     54The on-board backup power source for the NVRAM is a Sanyo CR14250SE lithium battery which is socketed for easy removal and replacement. A small capacitor is provided to allow the battery to be quickly replaced without data loss.
     55
     56The lifetime of the battery is very dependent on the ambient temperature of the board and the power-on duty cycle. At 70°C, the
     57worst-case elapsed time for battery protection is 7 years. Battery warning time is 24 hours minimum. At lower ambient temperatures
     58the backup time is greatly extended.
     59
     60When a board is stored, the battery should be disconnected to prolong battery life. This is especially important at high ambient
     61temperatures. The MBX board is shipped with the on-board battery disconnected (i.e., with a jumper installed across J1 pins 2 and 3). If
     62you intend to use the battery as a backup power source, it is necessary to reconfigure the jumpers on J1 and J2 before installing
     63the board. Refer to Backup Power Configuration and Backup Power Conditioning in Chapter 1 for the jumper configurations to use.
     64= Block diagram =
    5465
    5566
    5667[wiki:File:diagram12.png File:diagram12.png]
    57 
    58 ==References==
     68=  =References==
    5969
    6070http://www.emersonnetworkpower.com/en-US/Products/EmbeddedComputing/Documents/DocumentationArchive/TechnicalDocumentation/02/mbxapg.pdf