Asynchronous Terminals and Printer Processes Configuration and Management Manual

Table Of Contents

Printer Profiles and Default Modifiers

Asynchronous Terminals and Printer Processes Configuration and Management Manual—424280-003

4-18

Printer Modifiers

MODEM

This modifier specifies that the concentrator is connected to the serial printer through a

pair of modems.

For a modem connection, you must specify MODEM and EIA and either BAUD n or

DUAL212.

MULTI $dev-name

Typically, the WAN subsystem creates an I/O process (IOP) for each line interface unit

(LIU) on a SWAN/SWAN 2 concentrator; however, you can direct the WAN subsystem

to create a single IOP for multiple LIUs by specifying this modifier. Use this modifier

whenever possible to minimize the number of IOPs and to reduce operating system

overhead. This is important during normal execution, but it is especially important

during path switches between processors.

To specify the MULTI modifier, follow the instructions below:

•

Determine the set of lines on the SWAN/SWAN 2 concentrator to be managed by a

single IOP (it can be any value in the range 1 through 6).

•

Specify the MULTI $dev-name modifier for the second line in the set, where

$dev-name is the logical device name of the first line in the set (and of the single

IOP managing the LIUs).

•

Specify the MULTI $dev-name modifier for the remaining LIUs in the set.

You can use this modifier to create a single IOP for six lines on the SWAN/SWAN 2

concentrator, but you cannot use it to create a single IOP for lines on two or more

paths or concentrators. In other words, the logical device name specified by the MULTI

modifier must identify a line on the same concentrator as the line for which the MULTI

modifier has been specified.

NAME #subdev-name

This modifier specifies a unique user-defined subdevice name for a serial printer.

Application: Serial printers