Page 95
724-746-5500 | blackbox.com
Appendix D: Using an Optional Serial Access Unit with the R-Port
Log into the SSH session as admin using the same password as the Web interface.
At the command prompt, type connect x (where x is the Serial Access Unit’s
device number). Or, you can enter command connect -l to see a list of active
devices.
Operating Notes
• Hardware handshaking (CTS/RTS) is required for speeds exceeding 9600 bps. It
is enabled by default on the ServSwitch but may need to be enabled on the
other end of the connection. For UNIX systems, the command is:
stty -crtscts < /dev/[serial port]
• Serial Access Units use a simple RS-485 multidrop network running at 115,200
bps. Every Serial Access Unit will not be inputting/outputting data at the same
rate at all times. However, since these devices use interactive logins, it is unlikely
that all channels would be busy at any one time. Hardware handshaking is used
to limit the individual channels’ output rates.
• Up to four users may simultaneously log into the same device. All users may
type commands at any time, and all users will see the same output.
NOTES: All users have equal access to all channels.
Up to 16 Serial Access Units can be connected at any time.
Plug in and unplug any Serial Access Unit at any time. When reconnected, it will
automatically become available after a 15-second initialization period. The Serial
Access Unit will retain any log entries while deactivated, but it will not be available
to users until you reinitialize it.
D.6 Intelligent Platform Management Interface (IPMI) Function
D.6.1 Background
An optional power management feature lets you remotely restart hardware and
power the host computer on and off. You can use this feature if the computer
supports IPMI (Intelligent Platform Management Interface).
D.6.2 Host Computer Requirements
The host computer must support the IPMI standard version 1.5 to use this option.
Most popular server motherboards now support the IPMI standard. To determine
if your computer supports this IPMI, consult its documentation for more informa-
tion.
