®
USER’S GUIDE
Switched Rack PDU
8
Upgrading Firmware through a Serial Connection
You can use a local computer that connects to the Rack PDU through the
serial port on the front panel of the unit.
1. Select a serial port at the local computer, and disable any service
which uses that port.
2. Use the supplied serial cable (940-0144) to connect the s elected port
to the serial port on the front panel of the Rack PDU.
3. Run a terminal program (such as HyperTerminal) and configure the
selected port for 9600 bps, 8 data bits, no parity, 1 stop bit, and no flow
control. Save the changes.
4. Press ENTER, repeatedly if necessary, to display the User Name
prompt.
5. Enter your user name and password (both apc, by default, for
administrators only) and press the ENTER key.
6. From the Control Con sole menu, select, in order, System, Tools, File
Transfer, and XMODEM.
7. At the prompt Perform transfer with XMODEM-CRC? type YES,
and press ENTER.
8. The system will then prompt you to choose a transfer rate and to
change your terminal settings to match the transfer rate. Press ENTER
to set the Switched Rack PDU to accept the download.
For a complete description of how to download a firmware upgrade
for your Rack PDU, see Upgrading Firmware: Methods and Tools.
That section also explains how to use network-based file transfer
tools, which complete a firmware upgrade more quickly than the
XMODEM protocol described here, which uses a serial connection.