Serial port naming conventions

Each serial port has three device nodes associated with it. Each node takes the form of a file which you can access from operating system utilities and user applications. Details of these nodes are shown in the next table.

Device name

Function

Description

Location

 

 

 

 

z1

Normal communications port

Indicates normal

/dev/term

 

for local “tty” devices.

communications port

 

 

 

behaviour.

 

Z1

Modem port

Indicates that a port open will

/dev/term

 

 

not complete unless DCD is

 

 

 

present

 

z1p

Transparent print port.

Indicates that device should

/dev/term

 

 

only be used for transparent

 

 

 

print.

 

UltraPort Serial Adaptors User Guide

Chapter 2 Installing drivers and host cards

Installing under SCO UnixWare

Page 65

 

Page 65
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Perle Systems 5500152-23 manual Serial port naming conventions