Rs-232C Serial Input/Output Connector; Table 1-3. Serial I/O Pins - HP Visualize B1000 Owner's Manual

Table 1-3

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.
Serial I/O Pins
Pin No. Signal
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
Chapter 1
System Unit Rear Panel Connectors
Description
Data Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Ground
Data Set Ready
Request To Send
Clear To Send
Ring Indicator
System Overview
33