Figure A-2 Serial Port - Silicon Graphics SGI Altix 3700 Bx2 User Manual

Serial Ports
007-4377-002
The IX-brick features two standard available 9-pin serial ports via the base I/O PCI card.
These ports 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.
Pin 3
Transmit
Data (TXD)
Pin 2
Receive Data
Pin 1 (RXD)
Data Carrier
Detect (DCD)
(not used)
Pin 6
Data Set
Ready (DSR)
(not used)
Pin 7
Request to
Send (RTS)
Figure A-2 Serial Port
Pin 4
Data Terminal
Ready (DTR)
(not used)
Pin 5
Ground
Pin 9
Ringing Indicator (RI)
(not used)
Pin 8
Clear to Send
(CTS)
I/O Port Specifications
175