"Samuel W. Heywood" <[EMAIL PROTECTED]> writes:
>
>I have recently acquired a Cardinal Technologies 14400 modem, model
>number 10750. I have no documentation. Cardinal Technologies went
>out of business a couple of years ago and of course no longer provides
>technical support. I should like to configure this modem so that it is
>set up for COM port 2, IRQ 3. The modem has 12 jumper pins arranged
>in six rows of a column of two. The numbering of the pins does not
>seem to provide any clues as to which pins are for what. It looks
>like this:
>
> 6 . . 2
> 5 . . 5
> 4 . . 3
> 3 . . 4
> 2 . . no number
> 1 . . no number
I don't have docs for this modem, but this looks like a fairly simple
layout of pins. Jumpers will only go horizontally, connecting pairs
of pins -- pair #1 is at the bottom, #6 at the top, etc. The top four
pairs will select the IRQ: pair #6 for IRQ 2, pair #5 for IRQ 5, and
so on. You want IRQ 3, so jumper pair #4. Leave #3, #5, and #6 open.
The bottom two pairs of pins will select the port address. Probably:
pairs #1 and #2 both open = COM1, pairs #1 and #2 both closed = COM4.
COM2 will have only one pair closed -- #1 or #2, but not both. Pair
#1 closed seems more likely, at a WAG.
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