Liebert EM Link the Controls of Two Receptacles, On, Off, Reboot buttons, Linked receptacles Port

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Getting Started With the Web Interface

Link the Controls of Two Receptacles

Two receptacles may be linked for simultaneous control. The receptacles may be on the same power strip or on two different power strips. When two receptacles are linked, the Connections column dis- plays the link as x:y, where x is the OpenComms EM serial port number (1 or 2) and y is the number of the linked receptacle. In the example below, receptacles 4 and 7 on serial port 1 are linked, shown in the Connections column as 1:7 and 1:4.

Once linked, both receptacles will be turned on, off or rebooted at the same time when you click on the On, Off or Reboot button for either receptacle in the Power Data window, shown below.

Figure 8 Linking receptacles

On, Off, Reboot buttons

LINK

Linked receptacles

4 & 7 (Port 1)

To link two receptacles:

Figure 9 Link window

In the right side of the Power Data window, click on LINK in the Connections column for either receptacle, as shown in Figure 8.

The right side of the window displays the selected recep- tacle—Receptacle 4 on Port 1 in the example at right.

Click on the down arrow of the Power Strip list box and select the serial port.

Click on the Receptacle box and select the number of the receptacle to be linked.

Click Apply to accept the changes. (Or click Reset to cancel.)

To break the link:

Power strip port

Receptacle to be linked

In the right side of the Power Data window, click on the x:y entry in the Connections column for a receptacle—for example, click on 1:7 for Receptacle 4 in Figure 8.

In the link window (Figure 9), click on the down arrow of the Power Strip list box and select None.

Click Apply to accept the changes. (Or click Reset to cancel.)

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Contents Liebert OpenComms EM Page Table of Contents Pinout Guides Getting Started with the WEB InterfaceFigures Page Introduction Dimensions and Mounting Overview vEM-14 Controllers Dimensions and Mounting Overview EM & EM PDU ControllersPower and port indicators VEM-14see Table OverviewDescription of indicators and connectors Connectors on Back of UnitIndicators summary IndicatorsInstallation Installation ConsiderationsUnpacking and Preliminary Inspection Standard and optional components shipped with OpenComms EM44.5mm Horizontal mounting Vertical mounting Decide on Placement of the OpenComms EMMounting the Unit on a Wall EM / EM PDU Controllers Rack Mounting Mounting the Unit on a Wall or in a Rack vEM-14 ControllersWall Mounting Make Connections Use IPSET.exe to Assign an IP Address Consult Your Network AdministratorAssign AN IP Address Select a MethodUse Dhcp to Assign an IP Address Use ARP to Assign an IP AddressAddress bar Tabs Device Identification Main display Links Main Parts of the Web InterfaceWEB Interface Overview Color-Coded Status TabsSummary of tab functions Color coding used in Web interfaceExamples of sensor limits temperature and humidity sensors Temperature/Humidity Sensor ThresholdsThresholds in the Web Interface Dry-Contact Sensor ThresholdsAmps Name Current Value Color MP Advanced Power Strip ThresholdsExamples of sensor limits MP Advanced power strip sensors Buttons Sensor Names and StatusSensor information name and status Buttons in the Web interfacePassword Address bar Login window User NameOpen the Web Interface and Log Getting Started with the WEB InterfaceView Summary Data Update the InformationTypes of Information Exit the Web InterfaceSensors Window Configure SensorsSensors tab Names Names for sensors Create or Change Sensor NamesOn Sensor 1 port On Sensor 2 port Use these text boxesView Sensor Graphs Sensor graph humidity sensor example Zoom in Feature Humidity sensor exampleControl Receptacles Power Window EM PDU & vEM-14 ControllersControl All Receptacles With One Button Control Individual ReceptaclesPower strip port Receptacle to be linked On, Off, Reboot buttonsLink the Controls of Two Receptacles Linked receptacles PortRefresh Critical & Warning limits Rearm Graph see Section Configure ThresholdsPower tab Links to set thresholds Select a power strip Zoom in Feature Temperature sensor example View Power Strip GraphsCreate or Change Port Names Power tab Port namesAlerts Window Mail SetupModem Setup Snmp Trap Alerts Setup Security Window Security tab User drop-down list Enter & confirm passwordCreate a New User Account Administrators Only Modify an Existing Account Administrators Only Delete a User Account Administrators Only Change Password Users with Read/Write accessSecurity tab Enter & confirm password Security tab User drop-down list Delete buttonSys Info Window Default gatewayNetwork Connectivity Sys Info tabSnmp Information Data Presentation Serial Ports Contact Closure Cable Pinout Guide Modem Setup and Pinout GuideSerial Cable Pinout Guide EM PDU & vEM-14 Controllers Pinout GuidesDownloading Firmware Updates OpenComms EM specifications SpecificationsPage Iti Ne tTi n That

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.