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Legrand PDU User Guide 31
Connecting the Legrand PDU to a Computer
The Legrand PDU can be connected to a computer for configuration via one of the following ports.
Ethernet ports
USB-B port
RS-232 serial port (RJ-45)
The following diagram illustrates a Zero U model's ports.
To use the command line interface (CLI) for configuration, establish an RS-232 or USB connection.
To use a web browser for configuration, make a network connection to the computer. The Legrand PDU is
automatically configured with the following link-local addressing in any network without DHCP available:
https://169.254.x.x
(where x is a number)
https://pdu.local
See
APIPA and Link-Local Addressing
(on page 17).
Establish one of the following connections to a computer. Ethernet port of Legrand PDU must be enabled for
the described connection to work properly, which has been enabled per default.
Direct network connection:
1. Connect one end of a standard network patch cable to either Ethernet port of the Legrand PDU.
2. Connect the other end to a computer's Ethernet port.
3. On the connected computer, launch a web browser to access the Legrand PDU, using either link-local
addressing:
pdu.local
or
169.254.x.x
. See
Login
(on page 86).
USB connection:
1. A USB-to-serial driver is required in Windows
®
. Install this driver before connecting the USB cable. See
Installing the USB-to-Serial Driver (Optional)
(on page 521).
2. Connect a USB cable between a computer's USB-A port and the USB-B port of Legrand PDU.
3. Perform
Initial Network Configuration via CLI
(on page 522).
Note: Not all serial-to-USB converters work properly with the Legrand PDU so Legrand does not
introduce the use of such converters.
Serial connection for "RJ-45" RS-232 connector:
1. Connect the RJ-45 end of the RJ45-to-DB9 adapter cable to the RJ-45 port labeled CONSOLE on
Legrand PDU.
See
RJ45-to-DB9 Cable Requirements for Computer Connections
(on page 32).
2. Connect the DB9 end to your computer's RS-232 port (COM).
3. Perform
Initial Network Configuration via CLI
(on page 522).