MPI for SCO Unix and SVR4/UnixWare
MPI (Menu Port Interface) is the program for configuring intelligent Digi
Boards under SCO Unix and SVR4/UnixWare. This document assumes that you
have already installed the card in the system and configured the BIOS
correctly for that card. For help on how to do this read the
Install Tips FAQ.
MPI consists of several seperate programs, plus all of the drivers for
intelligent cards supported in the OS. There are seperate versions of MPI
for SCO Unix and for SVR4/SCO UnixWare. Make sure you have the right driver
for your system. Install MPI using custom or pkgadd.
The parts of the MPI package are
any of these programs can be run directly from the command line
- MPI, the Menu Port Interface itself, the driver configuration
- Monitor, (DPA) the Digi Port Authority, which shows the current status of a
board or its ports
- ditty, the Digi version of stty
- dscreen, the Digi multiscreen utility
To configure a board under MPI, type MPI and then choose config-->install new
product-->choose the appropriate product family.
Note: Some of the products have similar names -- for instance, the
Xe and X/em are in different product families. Be careful to
choose the correct product and product family.
Choose the number of cards of this family to install, then indicate the type for
each card (use the F2 key to get a pick list). Make sure to choose the right
card type and the right slot type (ISA, EISA, MC, PCI).
For ISA, EISA, or MC cards, choose the I/O and Memory Addresses you used
Several other options appear below the card type:
For C/X Remote:
- TTY ID Select: Auto or Manual
Choose Auto to let MPI choose the port names, choose Manual to
allow manual selection of port names from the allowed list
- Installation Method: Basic or Custom (C/X and EPC/X)
Choose Basic for an installation where both ports on a card will be
connected to local concentrators within 1000 feet of the server, choose
Custom when the card will be attached to Concentrators through a CSU/DSU
or modem, or where at least one concentrator is more that 1000 feet
- Number of Ports Modules: ## (X/em)
Choose the number of ports modules which are connected to this card
If your concentrator is connected through a CSU/DSU or modem, you will
need to configure the wire type correctly.
The second setting you need to configure is the line speed (actually
timeout timing) use the speed that is closest to the DTE line speed of
- The two options for remote wire type are RS232/Modem and
use the setting appropriate to the CSU/DSU or modem you have.
- If your device has a V.35 port, you can use that with the RS422
- Cabling diagrams for the cables necessary are available from tech
For further help in configuring C/X Remotes, consult the Troubleshooting Guide.
Testing Your Installation
Run DPA and check the card status:
If the card shows state OK, and the #Ports is correct,
(and C/X concentators, if any, show state AC), then everything is
configured correctly, and you should be ready to enable your ports.
If you need to remove MPI, and custom/pkgrm fails, check Removing MPI manually.
Revised 4/6/98: BT