Virtual TapeServer SCSI-to-FC Adapter User Manual

2-13
Chapter 2: Getting Started
Serial Port Connection
The RJ-11 connector on the back panel of the VT5900-SA provides a serial port that is compatible
with RS-232 signaling levels. The VT5900-SA is designed to communicate with a terminal or any
operating system utilizing a terminal emulator. The baud rate, data bits, stop bits, parity, and flow
control of both the VT5900-SA and the host system must use the same settings. The Autobaud
feature described below provides an effective method to set the baud rate of the VT5900-SA and
host system.
Figure 2-17. VT5900-SA Serial port
Autobaud Feature
The autobaud feature automatically configures the baud rate on the VT5900-SA. Once you set the
baud rate in the terminal emulator, wait until the VT5900-SA completes the Power-On Self Test
(POST) and then the Firmware Initialization process. This can take up to 90 seconds, during which
time the POST and initialization information may or may not be visible on the terminal or terminal
emulator. After this process has completed, you can press the Enter key slowly 7 or 8 times (or just
type shift-z) and the VT5900-SA will automatically detect the baud rate being used by the serial
port. The baud rate is then saved in the VT5900-SA’s configuration and will be retained through
future power cycles.
The baud rate used by the terminal or terminal emulator must be 9600, 19200, 38400, 57600, or
115200 for the autobaud feature to recognize it. The VT5900-SA will not function properly at any
other baud rate.
Note: Pressing the Enter key before the POST has completed is of no benefit to the Autobaud
feature. Wait until both the POST and the Firmware Initialization processes have completed
before pressing the Enter key. This may take up to 90 seconds.
Serial port