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32 Legrand PDU User Guide
RJ45-to-DB9 Cable Requirements for Computer Connections
An RJ45-to-DB9 adapter/cable is required for connecting the
Legrand PDU
to a computer, if the use of a
USB cable is not wanted.
A third party RJ45-to-DB9 adapter/cable needs to meet the following requirements.
RJ-45 to "DB9 female"
RX/TX and according control pins are CROSSED
The widespread blue Cisco RJ-45 to DB9 adapter cable is highly recommended, which has the following pin
assignments:
DB9 pin signal
DB9 pin No.
RJ-45 pin No.
RJ-45 pin signal
CTS 8
1
RTS
DSR 6
2
DTR
RxD 2
3
TxD
GND 5
4
GND
GND 5
5
GND
TxD 3
6
RxD
DTR 4
7
DSR
RTS 7
8
CTS
DCD
1 (Not connected)
RI
9 (Not connected)
N/A
Bulk Configuration Methods
If you have to set up multiple Legrand PDUs, you can use one of the following configuration methods to save
your time.
A bulk configuration file downloaded from Legrand PDU:
Requirement
: All Legrand PDUs to configure are of the same model and firmware.
Procedure
: First finish configuring one Legrand PDU. Then download the bulk configuration file from it
and copy this file to all of the other Legrand PDUs.
See
Bulk Configuration
(on page 262).
A TFTP server:
Requirement
: DHCP is enabled in your network and a TFTP server is available.
Procedure
: Prepare special configuration files, which must include
fwupdate.cfg
, and copy them to the
root directory of the TFTP server. Re-boot all Legrand PDUs after connecting them to the network.
See
Bulk Configuration or Firmware Upgrade via DHCP/TFTP
Curl command:
Requirement
: Two files are required -- one is a configuration file in TXT and the other is a devices list file
in CSV. See
config.txt
(on page 437) and
devices.csv
(on page 439).
Procedure
: Upload both files to all of Legrand PDUs one by one, using the appropriate curl command.
See
Upload via Curl
(on page 462).
