Liebert EM manual Connectors on Back of Unit, Description of indicators and connectors

Page 9

Introduction

1.1.3Connectors on Back of Unit

The back of the OpenComms EM, shown in Figure 2, has an input power source, sensor ports, a modem port and an Ethernet port. The EM PDU and vEM-14 controllers have serial ports, and vEM-14 controllers also have 10 dry contact inputs.

Figure 2 Rear view

 

 

Sensor

Sensor

Modem Ethernet DCN

EM

2

1

 

 

 

 

 

CONTROLLER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F - Power

EM PDU CONTROLLER

 

 

 

 

 

 

 

D - Serial

 

 

 

 

 

 

 

 

 

 

 

B - Sensors

C - Modem

E - Ethernet

devices

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DCN

Sensor

Sensor

Modem

Serial

 

Serial

Ethernet

 

2

 

1

 

 

2

1

 

 

 

F - Power

vEM-14

CONTROLLER

B - Sensors C - Modem D - Serial E - Ethernet devices

G - Dry contact inputs

F - Power

Table 1

Description of indicators and connectors

 

 

 

 

 

 

 

Item

 

Description

 

For more information, see:

 

 

 

 

A - Power and

Indicators on the front of the unit show the status of input power

1.2:

Indicators

port indicators

and other connections (see Figure 1).

 

 

 

 

Sensor ports to connect compatible sensors:

 

 

 

 

• Temperature sensor

 

 

B - Sensors

 

(provided with TMNET & TMPDUNET kits)

2.3.4: Connect Sensors

 

• Temperature & humidity combination sensor

 

5.3:

Sensors Window

 

 

(provided with THCMNET & THCMPDUNET kits)

 

 

 

 

 

 

• Humidity, water detection or dry-contact sensor

 

 

 

 

(available separately)

 

 

C - Modem

 

Port for connection to a modem.

2.3.3: Connect to a Modem

 

• Requires RJ45 cable (customer-supplied)

 

 

 

 

 

 

 

2.3.5: Connect Serial Devices

D - Serial

 

Serial 1 and Serial 2 ports to connect serial devices

 

(EM PDU/vEM-14 Controllers)

 

(EM PDU and vEM-14 controllers).

5.4:

Power Window (EM PDU &

devices

 

 

• Requires serial cable (one provided)

 

vEM-14 Controllers)

 

 

 

 

 

 

5.7.4: Serial Ports

 

 

 

 

E - Ethernet

Port for connection to an Ethernet network.

2.3.2: Connect to an Ethernet Network

• Requires RJ45 cable (customer-supplied)

5.7.1: Network Connectivity

 

 

F - Power

 

Power connection for the OpenComms EM.

2.3.1: Connect Power to the Unit

 

• Requires 9VDC

 

 

 

 

G - Dry

 

10 dry contact inputs for auxiliary devices (vEM-14 controller).

 

contact inputs

• Requires Form C dry contacts

 

 

3

Image 9
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 EMDecide on Placement of the OpenComms EM Mounting the Unit on a Wall EM / EM PDU Controllers44.5mm Horizontal mounting Vertical mounting Mounting the Unit on a Wall or in a Rack vEM-14 Controllers Wall MountingRack 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 AddressMain Parts of the Web Interface WEB Interface OverviewAddress bar Tabs Device Identification Main display Links 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 ThresholdsMP Advanced Power Strip Thresholds Examples of sensor limits MP Advanced power strip sensorsAmps Name Current Value Color 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 PortConfigure Thresholds Power tab Links to set thresholds Select a power stripRefresh Critical & Warning limits Rearm Graph see Section 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.