
Chapter 1
33
System Overview
System Unit Rear Panel Connectors
RS-232C Serial Input/Output Connector
You can attach a variety of pointing devices (such as a mouse or
trackball), or peripheral devices (such as printers, plotters, modems, and
scanners) to the RS-232C Serial Input/Output (SIO) ports on this
computer. Consult the documentation that accompanies each pointing or
peripheral device for specific information concerning its use.
The SIO ports are programmable. This means that you can set functions
such as bit rate, character length, parity and stop bits using the System
Administration Manager (SAM) or by selecting a system special device
file with the functions already programmed. The SIO ports are used as
an interface for serial asynchronous devices to the CPU.
Table 1-3 shows the SIO connector pin listings. The serial connectors are
9-pin D-sub connectors. Signal names are those specified in the EIA
RS-232 standard.
Table 1-3
Serial I/O Pins
Pin No.
Signal
Description
1
DCD
Data Carrier Detect
2
RXD
Receive Data
3
TXD
Transmit Data
4
DTR
Data Terminal Ready
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
Request To Send
8
CTS
Clear To Send
9
RI
Ring Indicator
Summary of Contents for Visualize c3000
Page 14: ...14 Figures ...
Page 16: ...16 Tables ...
Page 46: ...46 Chapter1 System Overview Powering Up Your System ...
Page 66: ...66 Chapter2 Using Your CD Drive Audio Control for the CD Drive ...
Page 80: ...80 Chapter3 Using Your 3 5 Inch Floppy Disk Drive Additional Floppy Drive Information ...
Page 94: ...94 Chapter4 SCSI Connections Connecting to the SCSI Ports ...
Page 164: ...164 Chapter5 Changing Your Computer Hardware Configuration Changing Your Monitor Type ...
Page 200: ...200 Chapter6 The Boot Console Interface Displaying System Information ...
Page 224: ...224 AppendixA Safety and Regulatory Statements Warnings and Cautions ...
Page 242: ...242 ...