Mac DOS: Apple LocalTalk PC Network Card (37925)
The information in this article applies to:
- Microsoft Mail for AppleTalk Networks, MS-DOS workstation 3.0
- Microsoft Mail for AppleTalk Networks, MS-DOS workstation 3.1
This article was previously published under Q37925 SUMMARY
Below is a description of the Farallon LocalTalk PC network card.
The following are the system requirements (according to the owner's guide):
- IBM PC or compatible with at least 256K of RAM
- Two floppy disk drives or one floppy disk drive and a hard drive
- Microsoft MS-DOS or IBM PC-DOS version 3.1 or later
- LocalTalk Locking Connector Kit (DB-9)
The following are the default DIP switch settings for the Apple LocalTalk
PC network card:
Switch Desc Default Function
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1 IRQ4 Off Selects Interrupt Request level 4. Same
interrupt as serial port COM1. Switches 2
and 3 must be off to select IRQ4.
2 IRQ3 On Selects Interrupt Request level 3. Same as
serial port COM2. Switches 1 and 3 must be
off to select IRQ3.
3 IRQ2 Off Selects Interrupt Request level 2. This
setting must not be used on a PC/AT
machine because it conflicts with the hard
disk controller. Switches 1 and 2 must be
off to select IRQ2.
4,6 DRQ3,DACK3 Off DMA Request and DMA Acknowledge on DMA
channel 3. Both switches must be on (and
switches 5 and 7 off).
5,7 DRQ1,DACK1 On DMA Request and DMA Acknowledge on DMA
channel 1. Both switches must be on (and
switches 4 and 6 off).
8 $24x/$22x On Selects the address range of the card. If
this switch is on, the card will respond
to control signals sent to addresses in
the range $240 through $247. If this
switch is off, the card will respond to
control signals sent to addresses $220 to
$227.
If you change the DIP switch settings on the card to resolve any conflicts
with other cards in your system, you must notify the AppleTalk driver ATALK
of these changes. This is done by adding one or more parameters after the
driver name ATALK.COM. The following table summarizes these options:
Option Default Other Possible Values
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/CARDINT=x 3 2 or 4
/DMA=x 1 3 (PC/AT only)
/ADDRESS=xxx $24x 220
Modification Type: | Major | Last Reviewed: | 5/20/2003 |
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Keywords: | KB37925 |
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