Pc Modem Serial Cable; Table B-11 Pc Modem Cable Pinout - Silicon Graphics OCTANE2 Owner's Manual

Appendix B: Technical Specifications
234

PC Modem Serial Cable

Use a full-handshake (includes RTS and CTS) PC modem serial cable for a modem with
RTS/CTS flow control. Table B-11 shows the cable connector pin assignments for this
cable.
You can use this cable for all serial devices except those that do not need RTS flow control.
If you add a null modem adapter to one end of the cable, you can still use it with devices
like serial printers and dumb terminals that do not need RTS flow control. You can
purchase the full-handshake PC modem serial cable from SGI or your local service
provider.
If you are attaching a modem with modem signals and RTS/CTS flow control, you
Note:
must use the /dev/ttyf* command devices in the configuration files. For more detailed
information, see the serial man page. To access this man page, choose Toolchest > Help >
InfoSearch > Man pages. Or place the cursor in the console window and type:
man serial
PC Modem Cable Pinout
Table B-11
Signal Pin Number
Description DB9 Connector (Female)
DCD 1
RXD 2
TXD 3
DTR 4
GND 5
DSR 6
RTS 7
CTS 8
RI 9
Pin Number
DB-25 Connector (Male)
8
3
2
20
7
6
4
5
22