Help Identifying ABT Card

["Ronin Hyde" <ronin@inna-net>]

   Recently purchased an Apple IIe, 20 meg SCSI hd (Apple external) and a
5.25" drive. Took the Apple SCSI card out of the IIe and slapped that and
the hd on the IIGS I have. The rest of the cards in the IIe I can identify
except for one small card made by Advanced Business Technology, Inc.
    I have tried the web and found a company with the same name but they
sell Alpha equipment. Sent an email asking for help to them, but also wanted
to check the newsgroup. It is very small, has 3 chips (74LS155B1, 74LS244P,
74LS27N), and a DB9 connector, of which only pins 2, 3 and 6 are used.
    The most I have piddled with Apple cards is with the GS memory card (1
meg version) so I am at a loss on this one. Any help is greatly appreciated.