Griff said....
 
> On the backside of the 925LX, there is a connector block labeled
> "40290-60010" with several places to connect things. Only two have
anything
> connected to them - the ones on the ends. One seems to go to the console
> and the other seems to go to the HP itself. Starting from the end with
> the cable that seems to go to the HP, they are labeled:
>
> (not labeled, goes to HP)
> DCE    Session Port
> M      Remote Support Modem
> 1M
> 2M
> 3DC
> 4DC
> 5DC
> DC (goes to console)
>
> So, it seems that I could hook a modem up to "M", "1M", or "2M", but I
> have no idea which LDEV to configure with SYSGEN. I also have no clue
> which LDEV corresponds with each port on the 40290-60010.
 
With some experimentation using SYSGEN a couple of years ago and the Interex
Interact article of Jan '93 by Evan Rudderow titled "Finding a few more
terminal ports on your MPE/iX system" , I came up with the following on my
home office "big PC" HP3000/925 :-).
 1. There should be a path already for the MUX panel(9600 baud/no speed
sensing) terminal and non-spooling printer ports plus the console of
probably 4.2 (depending on the placement of the mux card internally),
ID=HP27140A.
 2. There then should be LDEV 20, ID=HP2392A, Path=4.2.0 for the console.
 3. The LDEVs 21-25 are the ports correspondingly labeled 1M-5DC. These are
usually configured as ID=HP2392A also.
 4. I believe if you change the MPESUBTYPE parameter with SYSGEN to 1 on
LDEV 21 or 22, then that port becomes a modem port.
 5. Any of the LDEV 21-25 ports can be used as terminal/non-spooling printer
ports.
 6. I believe "M" is modem and "DC" is direct connect.
 
Call if you have questions. Hope this helps......Paul