As I remember, Mark, 422 is 5 wire with xmit/rcv loops.
jack
-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On Behalf Of Mark Landin
Sent: Wednesday, March 23, 2011 6:25 PM
To: [log in to unmask]
Subject: Re: [HP3000-L] Cabling question: ATP to DB-9
Ok thanks. We'll try that!
Now, I am seeing that this printer can run with the RS-232 or RS-422
protocols. Is there a way to tell how mine is configured right now?
Something on the printer itself? Something i can see on the port definition
on the DTC? Would there be a problem with going just straight -232 instead
of 422? (I wish we could find our manual for this beast, but alas...)
On Wed, Mar 23, 2011 at 5:22 PM, michael <[log in to unmask]> wrote:
> On DB9, I think it is 3,2, and 5.
> On DB25 is it 2,3, and 7.
>
> Both in the order of Transmit, Receive, and Ground.
>
> -Mike.
>
>
>
> On 03/23/2011 05:16 PM, Denys Beauchemin wrote:
>
>> 2, 3, 7.
>>
>> -----Original Message-----
>> From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On
>> Behalf Of Mark Landin
>> Sent: Wednesday, March 23, 2011 4:07 PM
>> To: [log in to unmask]
>> Subject: [HP3000-L] Cabling question: ATP to DB-9
>>
>> We have an LPQ 1200 connected to a DTC48 via the 3-pin ATP connector. For
>> reasons I don't want to get into here (because I want to avoid the
>> situation
>> where everyone, with the best of intentions of course, will try to talk me
>> out of it!) I need to replace this ATP connector with a DB9 connector.
>> (Trust me, this is the way we want to go)
>>
>> So, Pins 1, 2, and 3 for the ATP should map to which pins on a DB9?
>> ATP 1 -> DB9 ??
>> ATP 2 -> DB9 ??
>> ATP 3 -> DB9 ??
>>
>>
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