[comp.sys.ibm.pc] Diablo 620 printer and IBM PS/2 30/286

msmith@topaz.rutgers.edu (Mark Robert Smith) (01/20/90)

We have a printer which we believe is a Diablo 620 (from the name
plate) which WANG has slapped their name on.  We want to hook it up to
a PS/2 30/286 as a serial printer.  Two questions come up.

1)  Is the PS/2 30/286 25-pin serial port COM1 or COM2?

2)  Does the Diablo 620 need a standard Rs-232 serial cable, or are
some pins different, requiring a different cable?

Thanks for your help.
Mark

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rshelby@ms.uky.edu (Richard Shelby) (01/22/90)

In article <Jan.19.15.08.18.1990.26874@topaz.rutgers.edu>, msmith@topaz.rutgers.edu (Mark Robert Smith) writes:
> We have a printer which we believe is a Diablo 620 (from the name
> plate) which WANG has slapped their name on.  We want to hook it up to
> a PS/2 30/286 as a serial printer.

Several companies slapped their names on 620 and sold them as part of
a system; I often use a 620 with Xerox's name on it.  The printer may
have "Diablo" on the back panel or inside the case (the Xerox does).

> Two questions come up.
> 
> 1)  Is the PS/2 30/286 25-pin serial port COM1 or COM2?

COM1

> 2)  Does the Diablo 620 need a standard Rs-232 serial cable, or are
> some pins different, requiring a different cable?

I'm don't know what you mean by a "standard RS-232 serial cable", but
you can get the computer and printer to communicate by using a null-modem
cable.  Any decent cable supplier should have one availble or be able to
make one very quickly.  If you want to make one yourself look in computer
books for diagrams or see message 47524 in this group for a schematic.

> Thanks for your help.

You're welcome.


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Richard L. Shelby                    rshelby@ms.uky.edu
Department of Health Services        rshelby@ukma.BITNET
University of Kentucky               {rutgers,uunet}!ukma!rshelby

darcy@druid.uucp (D'Arcy J.M. Cain) (01/22/90)

In article <13772@s.ms.uky.edu> rshelby@ms.uky.edu (Richard Shelby) writes:
>In article <Jan.19.15.08.18.1990.26874@topaz.rutgers.edu>, msmith@topaz.rutgers.edu (Mark Robert Smith) writes:
> [...]
>> 2)  Does the Diablo 620 need a standard Rs-232 serial cable, or are
>> some pins different, requiring a different cable?
>
>I'm don't know what you mean by a "standard RS-232 serial cable", but
>you can get the computer and printer to communicate by using a null-modem
>cable.  Any decent cable supplier should have one availble or be able to
>make one very quickly.  If you want to make one yourself look in computer
>books for diagrams or see message 47524 in this group for a schematic.
>
>
Are you sure that message isn't your local number?  If you mean my recent
posting with the diagram, the message ID is <1990Jan20.125629.9392@druid.uucp>.
In any case here is the diagram from that posting:


    1 --- 1
    2 --- 3
    3 --- 2
    4 --- 5
    5 --- 4
    6 --- 20
   20 --- 6
    7 --- 7

In some cases you may have to tie 6 & 8 on the same end together as well.

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D'Arcy J.M. Cain (darcy@druid)     |   Thank goodness we don't get all 
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