TECHNICAL BULLETIN LANAI / 3COM 3C503 LANtastic AI 08.05.91 LANtastic AI with 3COM 3C503 Ethernet adapters Page 1 of 1 The 3COM 3C503 Ethernet adapter has been tested in-house and is compatible with all other LANtastic Network Operating System software. This bulletin should replace all other notes generated from this office to date. The following information is based on in-house testing and customer support of LANtastic AI. If you are not a registered LANtastic owner, your questions should be directed to our technical sales staff at (602) 293-6363. Any questions or comments on this bulletin may be forwarded by FAX (602) 293-8065 or mailed to: Artisoft Inc., 575 East River Road, Tucson, AZ., 85704, ATTN: LANtastic AI Support. RUNNING LANTASTIC AI WITH A 3COM 3C503 ETHERNET ADAPTER LANtastic/AI 4.0 includes a device driver to support the 3COM 3C503 adapters in their memory mapped mode with our 3C503MM.EXE program. It is intended for the 3C503 adapters only. Support for the other adapters is in development. After running the INSTALL program, and selecting the 3C503 adapter, a program called 3C503MM.DOC will be in the LANTASTI subdirectory. PLEASE READ IT. It is essential that the adapter be placed into it's memory mapped mode. The jumper block is just to the left of the large square chip on the adapter. You have to remove the adapter's MEMORY jumper from the disabled position, and place it onto one of the four other jumpers, depending which high memory address you want to select. With the 3C503MM program, unlike all the other adapters we support that use high memory, there is no need for a corresponding RAMBASE= software switch. (See the SETTINGS fax) ARTISOFT, Inc. makes no warranty as to the completeness or accuracy of this document. LANtastic is a registered trademark of ARTISOFT, Inc. Brand names and product names are trademarks or registered trademarks of their respective companies.