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Article #5685

Wanted: jumper details for serial cards

#5685
From: Lee M J McLoughlin
Date: Wed, 27 Jan 1993 19:29
28 lines
1822 bytes
I'm trying to upgrade two old serial cards by adding 16550's to the
spare sockets on them.  However I cannot find manuals for either cards
and was hoping some kind soul out there could tell me about the jumper
settings and pin outs.

The first is an Everex AT XT Multi I/O half-card.  It has 2 serial, games
and parallel.  The second serial port needs 3 chips inserted into
sockets.  There is a strip of 9 jumpers towards the bottom left of the
card.  Could anyone tell me what these jumpers do.  I'd like to know
what to un/set to enable the second serial port.  (Serial interfaces are
handled by 2x5 pin strips labeled ASYN1, ASYN2.)

The second half-card is a much older card no-name.  It has just 2
serial.  The second serial again requires three chips inserted into
sockets.  On this card the jumpers are well labeled but the second
serial is handled by a 1x10 pin strip.  I'd like to know the pinout
details for the 10 ping strip.

Thanks in advance
--
Lee McLoughlin.                          Phone: +44 71 589 5111 X 5085
Dept of Computing, Imperial College,     Fax: +44 71 581 8024
180 Queens Gate, London, SW7 2BZ, UK.    Email: L.McLoughlin@doc.ic.ac.uk
--
--
Lee McLoughlin.                          Phone: +44 71 589 5111 X 5085
Dept of Computing, Imperial College,     Fax: +44 71 581 8024
180 Queens Gate, London, SW7 2BZ, UK.    Email: L.McLoughlin@doc.ic.ac.uk
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From: lmjm@doc.ic.ac.uk (Lee M J McLoughlin)
Newsgroups: comp.unix.bsd
Subject: Wanted: jumper details for serial cards
Date: 27 Jan 93 19:29:38
Organization: Dept. of Computing, Imperial College, London. U.K.
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