Currently available BIOS Files for net45xx series:

bios_115a.bin             net45xx BIOS release version 1.15a

b4501x_124.bin          net45xx BIOS release version 1.24, for upgrading pre version 1.20
b4501x_126a.bin        net45xx BIOS release version 1.26a for upgrading pre version 1.20

b4501_124.bin            net45xx BIOS release version 1.24, for upgrading version 1.20 and newer
b4501_126a.bin          net45xx BIOS release version 1.26a, for upgrading version 1.20 and newer
b4501_127.bin            net45xx BIOS release version 1.27, for upgrading version 1.20 and newer
b4501_128.bin            net45xx BIOS release version 1.28, for upgrading version 1.20 and newer
b4501_132.bin            net45xx BIOS release version 1.32, for upgrading version 1.20 and newer
b4501_133.bin            net45xx BIOS release version 1.33, for upgrading version 1.20 and newer

Currently available BIOS Files for net4801:

b4801_124.bin            net4801 BIOS release version 1.24
b4801_126.bin            net4801 BIOS release version 1.26
b4801_127a.bin          net48xx BIOS release version 1.27a
b4801_128.bin            net48xx BIOS release version 1.28
b4801_130.bin            net48xx BIOS release version 1.30
b4801_131.bin            net48xx BIOS release version 1.31
b4801_133.bin            net48xx BIOS release version 1.33

Currently available BIOS Files for net5501:

b5501_132i.bin           net5501 BIOS release version 1.32i
b5501_133.bin            net5501 BIOS release version 1.33
b5501_133c.bin          net5501 BIOS release version 1.33c

Currently available BIOS Files for net6501:

b6501_141c.bin           net6501 BIOS release version 1.41c

Please note: It is not recommended to "downgrade" a BIOS to an older version than the one a board is supplied with.

comBIOS changelog.

 

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Documentation:

net4501_manual.pdf     net4501 Users Manual
net4501_mech.pdf        net4501 Board drawing
net4501_box_85.pdf     net4501 8.5" standard case front and rear
net4501_box.pdf           net4501 6.2" case front and rear (OEM Option)

net4511_mech.pdf        net4511 Board drawing
net4521_mech.pdf        net4521 Board drawing
net4521_box.pdf           net4521 10.65" standard case front and rear

net4526_mech.pdf        net4526 Board drawing
net4526_box.pdf           net4526 7.05" standard case front and rear

net4801_manual.pdf      net4801 Users Manual
net4801_mech.pdf         net4801 Board drawing
net4801_box_85.pdf     net4801 8.5" standard case front and rear

net5501_manual.pdf      net5501 Users Manual
net5501_mech.pdf         net5501 Board drawing
net5501_box_PCI1.pdf  net5501 11.4" standard case front and rear

net6501_manual.pdf      net6501 Users Manual
net6501_mech.pdf         net6501 Board drawing

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Software Drivers:

linux_2_4_dp83815.tar.gz    DP83815 Linux driver with the short cable issue fix.

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Other files:

term28.zip                    Very simple terminal emulator for 28.800 baud only.