TECHNICAL BULLETIN
                         Bulletin #1-269

Date:  April 27, 1990

              Error in 3Com Installation Supplement

The addendum to the NetWare Installation Supplement for 3Com
Etherlink and Etherlink Plus (revision 1.00, P/N 101-385-001)
contains erroneous information.  Specifically, the configuration
option table (Figure 2) is incorrect for every option.  The correct
configuration option information for DOS is listed below. 
 
     3Com 3C503 EtherLink II 
 
     0.   I/O = 300h, INT = 3, DMA = 1, BNC 
     1.   I/O = 310h, INT = 2, DMA = 3, BNC 
     2.   I/O = 330h, INT = 4, RAM = C8000, BNC 
     3.   I/O = 350h, INT = 5, RAM = CC000, BNC 
     4.   I/O = 250h, INT = 3, RAM = D8000, BNC 
     5.   I/O = 280h, INT = 2, RAM = DC000, BNC 
     6.   I/O = 2A0h, INT = 4, DMA = 1, BNC 
     7.   I/O = 2E0h, INT = 5, DMA = 3, BNC 
     8.   I/O = 300h, INT = 3, RAM = C8000, BNC 
     9.   I/O = 310h, INT = 2, RAM = CC000, BNC 
     10.  I/O = 330h, INT = 4, RAM = D8000, BNC 
     11.  I/O = 350h, INT = 5, RAM = DC000, BNC 
     12.  I/O = 250h, INT = 3, DMA = 1, BNC 
     13.  I/O = 280h, INT = 2, DMA = 3, BNC 
     14.  I/O = 2A0h, INT = 4, RAM = C8000, BNC 
     15.  I/O = 2E0h, INT = 5, RAM = CC000, BNC 
     16.  I/O = 300h, INT = 3, DMA = 1, DIX 
     17.  I/O = 310h, INT = 2, DMA = 3, DIX 
     18.  I/O = 330h, INT = 4, RAM = C8000, DIX 
     19.  I/O = 350h, INT = 5, RAM = CC000, DIX 
     20.  I/O = 250h, INT = 3, RAM = D8000, DIX 
     21.  I/O = 280h, INT = 2, RAM = DC000, DIX 
     22.  I/O = 2A0h, INT = 4, DMA = 1, DIX 
     23.  I/O = 2E0h, INT = 5, DMA = 3, DIX 
     24.  I/O = 300h, INT = 3, RAM = C8000, DIX 
     25.  I/O = 310h, INT = 2, RAM = CC000, DIX 
     26.  I/O = 330h, INT = 4, RAM = D8000, DIX 
     27.  I/O = 350h, INT = 5, RAM = DC000, DIX 
     28.  I/O = 250h, INT = 3, DMA = 1, DIX 
     29.  I/O = 280h, INT = 2, DMA = 3, DIX 
     30.  I/O = 2A0h, INT = 4, RAM = C8000, DIX 
     31.  I/O = 2E0h, INT = 5, RAM = CC000, DIX 

Although the supplement is incorrect, the correct options are
displayed when choosing the configuration in SHGEN under DOS. 
However, when the Multiple Link Interface Drivers (MLID) are
installed as device drivers under OS/2, the configuration options
are not displayed.  The default configuration for OS/2 is:

     I/O = 300h, INT = 3, RAM = C8000, BNC 

Note that the Base Memory Address may not be set to "Disabled" when
running the 3C503 board with the NetWare Requester for OS/2.  See
the NetWare Requester for OS/2 Supplement for additional
information on reconfiguring the NetWare Requester.