Maybe I am missing something here.  I am looking at the DTC Cabling and
Racking Guide ... on page 2-27 (RS232 RJ45 connection to HP terminals
and HP printers), it indicates this scheme:
        RJ45                    25-pin male connector
Pin       1     ------------         2 - TD OUTPUT
          3     ------------         3 - RD INPUT
          6     ------------         7 - SGND

And then, if you are using hardware handshaking, use the same pins and
add:
          4     ------------        20 - DTR OUTPUT

So, if I am using serial printing from a DTC and using printer type
22, does it matter whether I add the fourth pin?  I suppose it depends
on whether I specify hardware handshaking or not.  Right?  So, is the
book right or not?

"L. A. Barnes" wrote:
>
> Wesley,
>
> I pulled out my handy dandy HP Data Terminal Cabling Manual (its been out of print for some time now) and pin to is the transmit and pin 3 is receive.
>
> If you have a standard DB-25 to RJ-45 connector (you can get them from your local Radio Shack, or other electronics outlet) you can configure this connector any way you want.  Simply coordinate the RJ-45 cable to
> match the pins in the DB-25.  I used the Red for pin 2 and Green for pin 3 on the DB-25 side of the connector.
> You may need to switch pins 2 & 3 on one end of your cable depending on the way your printer is configured.  If so simply use a pair of needle nose pliers to push the pins out on the DB-25 and switch them.
>
> Hope this helps
>
> Larry Barnes
>
> Wesley Setree wrote:
>
> > I have a DTC  16mx and I need to attach an HP2566 printer to one of the ports. I have RJ45 connectors on both ends of my comm line. If I am looking at the RJ45 with the metal prongs sticking up my color scheme is:
> >
> >    1           2          3         4        5        6         7        8
> >  white   orange  black   red    green  yellow  blue   brown
> >
> > How do I pin out to the printer side? On my 25-pin converter, I am using:
> >
> > pin 2 - 3rd prong   pin 7 - 4th prong   pin 3 - 5th prong
> >
> > I guess my question is....what lines coming from the DTC16mx are for transmit, receive and ground? On my 25-pin connector, is 2 transmit or is it receive?
> >
> > Wes