Configuring Systems for Terminals, Printers, and Other Serial Devices (32022-90051)

116 Chapter7
Terminal and Printer Profiles
What is a Profile
Terminal Type 18
Use terminal type 18 for non-Hewlett-Packard devices. It differs from
terminal type 10 in the following ways:
• Block mode data transfers are not supported.
• Data protection is supplied through the XON/XOFF protocol. By
default, parity checking is not used.
• The read trigger character is not recognized.
Terminal Type 24
Use terminal type 24 for PAD terminals. Limitations apply to
operations over PAD connections. For example, the following functions
are not supported:
• Block mode applications.
• HP Block Mode applications.
• Parity generation, programmatically
• Parity checking, programmatically.
For more information on supported PAD operations, refer to the
Asynchronous Serial Communications Programmer’s Reference Manual.
Printer Types
A printer type is a collection of characteristics that cause a printer to
act and react in specific ways. It defines the relationship between the
printer and the MPE/iX operating system. Four printer types are
supplied with MPE/iX: printer type 18, printer type 21, printer type 22,
and printer type 26.
Printer Type 18
Use printer type 18 for spooled and application printers, without status
checking. An application printer is controlled by a program running on
an MPE/iX computer. The program performs the following functions:
• Opens the printer.
• Writes to the printer.
• Initializes the printer before each listing.
• Spools output to the printer.
• Sends messages to the system console or the user’s terminal.
• Checks the status of the printer. (Only some printers can supply this
information.)
• Closes the printer.