Kantronics TNCs set of three manuals. This covered the KPC-1, KPC-2, KPC-4, KPC-2400 and KAM models.
PACTOR Update Manuals. Version 6.0 Introduced PACTOR, 6.1 fixed the bugs.
KAM Firmware upgrades.
V5.0 adds mailbox access via AMTOR
V6.1 adds PACTOR with mailbox access.
IMPORTANT
If upgrading from a version earlier than V5.0 you will need to upgrade
the EEPROM at U25. This must be replaced by a 24C16.
If your present firmware is below V2.8 then you need to carry out a minor
PCB modification:
With the front of the unit facing you, locate the printed circuit
pads marked X to the left of the largest IC (the processor). You'll
see 3 pads (holes) with a "1" and "2" printed between them.
With a sharp blade, cut the trace jumper marked "1" and install
a jumper between pads at "2". Be careful to use a low-heat iron.
It is recommended that you place the jumper on the back of the
board.
After replacing the firmware, carry out a hard reset as described
in the instruction manual.
