Configuring Systems for Terminals, Printers, and Other Serial Devices (32022-90057)

Describing Asynchronous Devices
Chapter 9
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9 Describing Asynchronous Devices
This chapter discusses the following concepts:
• How the HP e3000 Series 900 initially recognizes devices and how it communicates
with them from that time on.
• How devices are owned, who can own them, and the restrictions that apply when a
device is owned.
• How the MPE/iX file system perceives devices and its response to some of their
characteristics.
• How different device operation modes set the functionality of devices.
• How the connection type sets certain device characteristics.
This chapter also discusses processes that are internal to the Datacommunications and
Terminal Subsystem (DTS)
• How to control the flow of data.
• How to control terminals.
• How to control printers.