Paul Courry writes:

>Bonnie, there are direct connect DTC ports and modem DTC ports. 
>A DTC 16 accepts two cards, each containing 8 ports. The
>cards may be either a direct connect card which supports 
>pins 2,3 & 7 or a modem card which supports pins 2,3,4,5,6,7,8,20.
>(Hey guys, if I'm wrong here, post a correction! I'm doing this from
memory.)

Well, we have a few DTC16's and they have DB25 connectors on the 
back.  They are configurable as modems/direct connect via NMMGR. 
You don't change anything on the DTC, just the configuration 
on the HP3K to change them from direct connect to modem and 
vice versa.  In fact, you can mix and match modem/direct connect 
ports on the same card in the same DTC.

Jim - Who has found out the hard way that modem configured DTC ports 
won't work for direct connected terminals!