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How to Configure your PDU?

Published by Lee Kelly on 11 March 2020

In this article, we will be going over some of the basics of configuring your PDU. We will specifically be talking and showing APC switched PDU’s. Configuring your PDU’s are a great way for you to keep track of them and ensure that you can quickly and efficiently identify any issues and fix or replace any PDU’s.

APC PDU connectivity panel

The APC connectivity panel and other manufactures panels are quite similar but there are a few little differences but they all work roughly the same. The diagrams below show you the layouts of PDU panels you will encounter.

Single-phase switched PDUs

Three-phase switched PDUs

Critical Power Supplies - How to Configure your PDU? image 1

Critical Power Supplies - How to Configure your PDU? image 2

You can see the layout for APC switched PDUs above you will need to connect your ethernet cable into the network port (RJ45 Port) or you could connect directly into the PDU via the serial port. We will be using the network port for this guide along with the command-line interface.

Logging in to the Command Line Interface

What you will need:

  • A computer connected to the same network as the PDU
  • Access to Telnet or SSH (You can enable or disable these in the web interface under the administration > network. Enabling SSH will disable Telnet and vice versa.)
  • The IP address of your PDU

To use Telnet to access the command-line interface:

  1. From the computer that has access to the network which your PDU is connected to type into the command prompt, telnet and the IP address for the PDU.
    (e.g. telnet 192.168.1.99) If you have set up a non-default port for the PDU then you would have to type this after the IP with a colon. (e.g. telnet 192.168.1.99:9000).
  2. Enter the user name and password the defaults are apc for both the user name and password or if you are a device user the defaults are device for the user name and apc for the password.

When you log in you will see something similar to the following screen.

Critical Power Supplies - How to Configure your PDU? image 3

From here you can then type ? then press enter and this will show you a list of all the commands available.

Useful Commands

Command

Description

netstat

This allows you to view the status of all network and active IPv4 and IPv6 addresses.

devReading <power/energy>


E.g. devReading power

This allows you to view the power or energy for this device. (kW / kWh)

phReading <phase/s or all> <power/current/voltage>


E.g. phReading all current

This allows you to view the current, voltage, power for a single-phase or all 3 phases

prodInfo

This allows you to view information about the PDU with things such as model, present outlets, max current, phases and more.

humReading

This allows you to view the humidity value for the sensor. If you have a sensor connected to the PDU port.

tempReading

This allows you to view the temperature of the sensor. If you have a sensor connected to the PDU port.

How to configure the PDU near-overload threshold in kW

From the command line interface, you need to use the NearOver command. There are a couple of options that you can use. Firstly is if you want to change one phase or if you would like to change them all. Then you would set the kilowatts threshold that you would require.

phNearOver all 10

The command above would set all the phases to a near-overload threshold of 10kW.

phNearOver 1-3

This command would show you what phases from one through three have been configured to. If you have entered this command you will see the following:

E000: Success

1:  10 A

2:  10 A

3:  10 A

How to configure the PDU low load threshold in kW

From the command line interface, you need to use the LowLoad command. There are a couple of options that you can use. Firstly is if you want to change one phase or if you would like to change them all. Then you would set the kilowatts threshold that you would require.

phLowLoad 1-3 1

The command above would set the phases from one through three to a low load threshold of 1kW.

phLowLoad all

This command would show you what phases from one through three have been configured to. If you have entered this command you will see the following:

E000: Success

1:  1 A

2:  1 A

3:  1 A

Need a little bit more help?

Critical Power Supplies offers a range of different options and solutions to help you configure and produce the system that you desire. If you would like Critical Power to set up your PDU and configure it to your specification you can contact our expert support team and we can get your PDU set up in an instant.

Call our expert support team on 0800 978 8988 or drop them an email on our from here. We look forward to hearing from you.