Downloading Firmware Updates | Liebert EM manual

Downloading Firmware Updates

7.0DOWNLOADING FIRMWARE UPDATES

This section explains how to update the unit’s firmware.

! CAUTION

When the firmware is updated, all settings except the network configuration are lost.

1.The first step is to download the upgrade text file. To do this, visit Liebert’s Web site at http://www.liebert.com and go to the OpenComms EM section. Or contact Liebert Monitoring Application Support at 1-800-222-5877. The firmware upgrade files are named with the model name, firmware version number and the extension “.txt” as follows:

•The filename for the EM Controller is em-x.x.txt, where x.x is the firmware version number.

•The filename for the EM PDU Controller is empdu-x.x.txt, where x.x is the firmware version number.

•The filename for the vEM-14 Controller is vem-14-x.x.txt, where x.x is the firmware version number.

2.Connect the unit to your network using an Ethernet cable or crossover cable (see 2.3.2 - Connect to an Ethernet Network).

3.Make sure the permission to upgrade is set to Allowed (see 5.7 - Sys Info Window).

NOTE

Steps 4 through 11 must be done on the same network segment where the OpenComms EM is connected.

NOTE

The following instructions refer to the Microsoft® Windows® HyperTerminal program. These steps may vary for other communications programs.

4.Open a communications program such as HyperTerminal.

(One way to do this in Windows is to click on the Start button, then on Programs, then Accessories, then Communications and finally HyperTerminal.)

5.Create a new connection in HyperTerminal.

6.When prompted, enter a name for the new connection and click OK. This opens the Connect To window.

7.In the Connect To window:

a.Select TCP/IP (Winsock) as the type of connection in the Connect Using box. After TCP/IP is selected, the Host Address and Port Number boxes appear in the window.

b.In the Host Address box, enter the IP address of the OpenComms EM.

c.In the Port Number box, enter 3001.

8.This should allow you to connect to the unit. The status area at the bottom left corner of the HyperTerminal window will display Connected and the amount of time you have been connected.

9.Click the Transfer tab at the top of the HyperTerminal window, then select Send Text File.

10.In the Send Text File window, specify the location of the firmware text file, then click Open. Several dots will appear across the HyperTerminal screen, indicating that it is checking for errors. Then it will begin downloading the file to the unit.

11.When the download is complete, a message appears and the status area changes to Disconnected. At this point, you may close the HyperTerminal program by clicking on the File menu, then on Exit.

If you have not saved the connection created in Step 5, a prompt message will ask whether you wish to do so.

12.After downloading a firmware update to the unit, you must wait about one minute before disconnecting power from the unit.

EM specifications

The Liebert EM is a state-of-the-art, modular and scalable cooling solution designed to meet the needs of today's data centers and IT environments. This innovative unit offers unmatched precision and flexibility, making it ideal for facilities that require meticulous temperature control and energy efficiency.

One of the main features of the Liebert EM is its modular design, allowing for easy expansion and customization based on the specific requirements of a facility. This scalability ensures that organizations can efficiently adapt to changing cooling demands without the need for significant infrastructure changes. The system can be configured in various capacities, making it suitable for spaces of different sizes and cooling needs.

Incorporating advanced technologies, the Liebert EM utilizes inverter-driven compressors, allowing for variable refrigeration capacity. This feature optimizes energy consumption, reducing operational costs while maintaining precise temperature control. The unit is designed with built-in smart controls that enable real-time monitoring and adjustments, ensuring enhanced performance and efficiency across the entire cooling system.

The Liebert EM also comes equipped with EC (Electronically Commutated) fans, which contribute to its energy efficiency by adjusting their speed according to the cooling load. This not only ensures adequate airflow but also minimizes energy waste, leading to lower overall operating costs.

Furthermore, the system features intelligent connectivity options that facilitate integration with existing building management systems. This capability allows for centralized monitoring and control, empowering facility managers to maintain optimal conditions and respond quickly to any fluctuations in temperature or humidity.

Safety and reliability are also paramount in the design of the Liebert EM. The unit includes comprehensive backup systems and redundancy features to ensure continuous operation even in the event of a component failure. This reliability is crucial for critical applications where downtime can result in significant losses.

In summary, the Liebert EM stands out as a versatile and high-performance cooling solution, equipped with advanced technologies that offer scalability, energy efficiency, and precise temperature control. Its modular design, coupled with intelligent control options, makes it an essential component for modern data centers looking to optimize their cooling infrastructure while ensuring reliability and reducing operational costs.