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Serial ports, Figure a-2 – Intel SGI Altix 450 User Manual

Page 182

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007-4857-002

A: Technical Specifications and Pinouts

Serial Ports

The IRU modules have 9-pin serial interface connectors. These ports are for console interface and
are capable of transferring data at rates as high as 230 kbps. Other features of the ports include the
following:

Programmable data, parity, and stop bits

Programmable baud rate and modem control

Figure A-2 shows a serial port example.

Figure A-2

Serial Port Connector

Pin 7
Request to
Send (RTS)

Pin 3
Transmit
Data (TXD)

Pin 2
Receive Data
(RXD)

Pin 4
Data Terminal
Ready (DTR)
(not used)

Pin 5
Ground

Pin 9
Ringing Indicator (RI)
(not used)

Pin 8
Clear to Send
(CTS)

Pin 6
Data Set
Ready (DSR)
(not used)

Pin 1
Data Carrier
Detect (DCD)
(not used)