ftp1.digi.com - /support/firmware/transport/flashwriter/archived-versions/5139/WR21/upgrade_flash_structure/

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 8/23/2013  8:23 PM      8590830 WR21-5139.all
 8/23/2013  8:21 PM          136 WR21-5139.ini
 8/23/2013  8:21 PM       148664 WR21-5139.sbios
 8/23/2013  8:22 PM      6728444 WR21-5139.zip