Liebert EM User Manual

Liebert OpenComms™ EM
User Manual
Monitoring For Business-Critical Continuity
TABLE OF CONTENTS
1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1.1 Dimensions and Mounting Overview - EM & EM PDU Controllers . . . . . . . . . . . . . . . . . . . . . 2
1.1.2 Dimensions and Mounting Overview - vEM-14 Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1.3 Connectors on Back of Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1.1 Unpacking and Preliminary Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Decide on Placement of the OpenComms EM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2.1 Mounting the Unit on a Wall (EM / EM PDU Controllers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2.2 Mounting the Unit on a Wall or in a Rack (vEM-14 Controllers) . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 Make Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.1 Connect Power to the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.2 Connect to an Ethernet Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.3 Connect to a Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.4 Connect Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.5 Connect Serial Devices (EM PDU/vEM-14 Controllers). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.0 ASSIGN AN IP ADDRESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Use IPSET.exe to Assign an IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Use ARP to Assign an IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Use DHCP to Assign an IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.0 WEB INTERFACE OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 Main Parts of the Web Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Tabs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3 Color-Coded Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.4 Thresholds in the Web Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.4.1 Temperature/Humidity Sensor Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.4.2 Dry-Contact Sensor Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.4.3 MP Advanced Power Strip Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.5 Sensor Names and Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.6 Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
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5.0 GETTING STARTED WITH THE WEB INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
5.1 Open the Web Interface and Log In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2 View Summary Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3 Sensors Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.3.1 Configure Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.3.2 Create or Change Sensor Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.3.3 View Sensor Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.4 Power Window (EM PDU & vEM-14 Controllers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.4.1 Control Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.4.2 Configure Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.4.3 View Power Strip Graphs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.4.4 Create or Change Port Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.5 Alerts Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.5.1 E-Mail Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.5.2 Modem Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.5.3 SNMP Trap Alerts Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.6 Security Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.6.1 Create a Password for the Default Liebert Account (Administrators Only) . . . . . . . . . . . . . . 30
5.6.2 Create a New User Account (Administrators Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.6.3 Modify an Existing Account (Administrators Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.6.4 Change Password (Users with Read/Write access). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.6.5 Delete a User Account (Administrators Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.7 Sys Info Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.7.1 Network Connectivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.7.2 SNMP Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.7.3 Data Presentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.7.4 Serial Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.0 PINOUT GUIDES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
6.1 Modem Setup and Pinout Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.2 Contact Closure Cable Pinout Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.3 Serial Cable Pinout Guide (EM PDU & vEM-14 Controllers) . . . . . . . . . . . . . . . . . . . . . . . . 38
7.0 DOWNLOADING FIRMWARE UPDATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
8.0 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
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FIGURES
Figure 1 Front view (EM PDU & vEM-14 controllers shown). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Figure 2 Rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 3 Indicators on front of unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 4 Mounting dimensions - EM / EM PDU Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 5 Mounting - vEM-14 Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 6 Sensor graph - humidity sensor example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 7 Power tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 8 Linking receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 9 Link window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
TABLES
Table 1 Description of indicators and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Table 2 Indicators summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Table 3 Standard and optional components shipped with OpenComms EM . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 4 Methods of assigning IP addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 5 Summary of tab functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 6 Color coding used in Web interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 7 Examples of sensor limits - temperature and humidity sensors . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 8 Examples of sensor limits - temperature and humidity sensors . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 9 Examples of sensor limits - MP Advanced power strip sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 10 Sensor information - name and status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 11 Buttons in the Web interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 12 Summary window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 13 OpenComms EM to DCE modem pinout guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 14 Contact closure cable pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 15 Serial cable pinout - MP Advanced Power Strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 16 OpenComms EM specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
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1.0 INTRODUCTION

The Liebert OpenComms™ EM is a compact, half-duplex device designed to monitor temperature, humidity, water detection and contact closure and notify personnel when those conditions exceed user-defined limits.
The OpenComms EM is available in several models, which vary in size and number and types of ports. All models have sensor ports to monitor temperature, humidity, water detection and contact closure, and all models have either an external or built-in temperature/humidity sensor:
EM
Controller
EM PDU
Controller
vEM-14
Controller

Sensor Ports

The OpenComms EM has sensor ports capable of monitoring temperature, humidity, water detection and contact closure through sensors that may be purchased separately (see Table 3). The unit’s auto­sensing capability can determine which type of sensor is connected, making the unit ready to plug into your operation. Default settings for alarm limits may be changed through a Web interface.
Introduction
•has two sensor ports
•ships with an external sensor to detect temperature only (TMNET kit) or both temperature and humidity (THCMNET kit)
• has no serial ports
• takes up zero U rack space
•has two sensor ports
•ships with an external sensor to detect temperature only (TMPDUNET kit) or both temperature and humidity (THCMPDUNET kit).
•has two serial ports to monitor Liebert MP Advanced Power Strips
• takes up zero U rack space
•has four sensor ports
• has a built-in temperature and humidity sensor
•has two serial ports to monitor Liebert MP Advanced Power Strips
•has 10 dry contact inputs
• takes up 1U rack space

Ethernet Ports

The unit has an Ethernet port for connection to a network, which provides access to the Web interface and the capability of receiving alerts when monitored conditions reach alarm status. The OpenComms EM may also be configured to send e-mail alerts and SNMP traps over the network.

Modem Port

A modem port provides the capability of sending pager messages to notify personnel of alarm condi­tions in the monitored area.

Web Interface

A Web interface makes it easy to view monitoring data in tabular and graphic formats, configure the device for alarm thresholds and set up automatic e-mail and pager notifications when a level in a monitored area crosses a predefined threshold.

Serial Ports (EM PDU / vEM-14 Controllers)

EM PDU and vEM-14 controllers have two serial ports that are ideal for monitoring Liebert Managed Power (MP) Advanced Power Strips. Power, voltage, current and temperature levels can be monitored with user-configured alarm thresholds. In addition, some MP Advanced Power Strip models allow each receptacle on the power strip to be turned on or off through the Web interface.

Typical Applications

An OpenComms EM is highly useful in monitoring:
Enclosures, particularly those housing electronic equipment such as servers or telephone switching equipment sensitive to temperature, humidity and power fluctuations
Process Areas, such as areas where environmentally sensitive chemical reactions occur
A closet or an area of a room where temperature levels are important, for example, an area that houses many servers, where you want to verify the area or closet doesn’t get too hot
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1.1 Overview

The OpenComms EM features indicator lights on the front, as shown in Figure 1.

Figure 1 Front view (EM PDU & vEM-14 controllers shown)

EM PDU CONTROLLER
Introduction
Power Link Serial 1 Modem Serial 2 Sensor 1 Sensor
vEM-14 CONTROLLER
2
A - Power and port indicators (see Table 1)

1.1.1 Dimensions and Mounting Overview - EM & EM PDU Controllers

• The unit is 4.75" wide, x 2.5" deep x 1.625" high (120.7 x 63.5 x 41.3mm).
• The unit may be placed on a flat surface or mounted on a wall, using mounting holes on the bot­tom of the unit. See 2.2.1 - Mounting the Unit on a Wall (EM / EM PDU Controllers) for more information.

1.1.2 Dimensions and Mounting Overview - vEM-14 Controllers

• The unit is 17" wide x 5" deep x 1.75" high (431.8 x 127 x 44.5mm).
• The unit may be placed in a rack-mount or desktop orientation.
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1.1.3 Connectors 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
Introduction
EM CONTROLLER
EM PDU CONTROLLER
vEM-14 CONTROLLER
Sensor 2 Sensor
Modem DCN Ethernet
1
B - Sensors C - Modem
Sensor 2 Sensor
Modem DCN Ethernet
1
B - Sensors C - Modem
D - Serial devices
Serial 2 Serial
1
D - Serial devices
E - Ethernet
E - Ethernet
F - Power
F - Power
G - Dry contact inputs
F - Power
Table 1 Description of indicators and connectors
Item Description For more information, see:
A - Power and port indicators
B - Sensors
C - Modem
D - Serial devices
E - Ethernet
F - Power
G - Dry contact inputs
Indicators on the front of the unit show the status of input power and other connections (see Figure 1).
Sensor ports to connect compatible sensors:
• Temperature sensor (provided with TMNET & TMPDUNET kits)
• Temperature & humidity combination sensor (provided with THCMNET & THCMPDUNET kits)
• Humidity, water detection or dry-contact sensor (available separately)
Port for connection to a modem.
• Requires RJ45 cable (customer-supplied)
Serial 1 and Serial 2 ports to connect serial devices (EM PDU and vEM-14 controllers).
• Requires serial cable (one provided)
Port for connection to an Ethernet network.
• Requires RJ45 cable (customer-supplied)
Power connection for the OpenComms EM.
• Requires 9VDC
10 dry contact inputs for auxiliary devices (vEM-14 controller).
• Requires Form C dry contacts
1.2: Indicators
2.3.4: Connect Sensors
5.3: Sensors Window
2.3.3: Connect to a Modem
2.3.5: Connect Serial Devices (EM PDU/vEM-14 Controllers)
5.4: Power Window (EM PDU & vEM-14 Controllers)
5.7.4: Serial Ports
2.3.2: Connect to an Ethernet Network
5.7.1: Network Connectivity
2.3.1: Connect Power to the Unit
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1.2 Indicators

The front of the OpenComms EM has indicators that show input power to the unit and the status of various connections, as shown in Figure 3 and described in Table 2.

Figure 3 Indicators on front of unit

EM CONTROLLER
Power Link Activity Sensor 1 Sensor
EM PDU CONTROLLER
Introduction
2
Power Link Serial
1
vEM-14 CONTROLLER
2
Modem Serial
Sensor 1 Sensor
2

Table 2 Indicators summary

Indicator
Type
Power Power Power On Red Power is connected and powering the OpenComms EM.
Ethernet Link Link Cx/Tx Yellow The OpenComms EM is connected to an active network.
Sensor
port
Serial
port*
Indicator Label on Model:
Color DescriptionEM EM PDU vEM-14
Sensor 1 Sensor 1 Sensor 1 Green A sensor is connected to the Sensor 1 port.
Sensor 2 Sensor 2 Sensor 2 Green A sensor is connected to the Sensor 2 port.
Sensor 3** Green A sensor is connected to the Sensor 3 port.
Sensor 4** Green A sensor is connected to the Sensor 4 port.
Serial 1 Serial 1 Green A device is connected to the Serial 1 port.
Serial 2 Serial 2 Green A device is connected to the Serial 2 port.
Modem Activity Modem Mdm Green A modem is connected.
* EM PDU and vEM-14 controllers ** vEM-14 controllers
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2.0 INSTALLATION

This section provides instructions for installing, mounting and connecting power and other cables to the OpenComms EM.

2.1 Installation Considerations

The OpenComms EM must be installed indoors where electrical service is available. The unit should be placed where it can be easily accessed for connecting the unit to a modem, a computer or a network hub and, if used, serial devices.
The unit may either be mounted on a wall or be placed on a surface, depending on the user’s applica­tion and the location of equipment to be connected and monitored. Consider the length of the sensor cable and the distance to the monitored area when deciding where to place the OpenComms EM, whether you use the 1-ft. (0.3m) cable provided with the unit or the optional 15-ft. (4.6m) cable that may be purchased separately.

2.1.1 Unpacking and Preliminary Inspection

• Before unpacking the OpenComms EM, inspect the shipping carton for damage or signs of mis­handling, such as gashes or holes in the carton or severely flattened corners.
• Open the shipping carton carefully. Use care to avoid puncturing the container with sharp objects that might damage the contents.
• Inspect the OpenComms EM and all included components for damage. See Table 3 for a list of items that should be included with each model.
• If any damage from shipping or mishandling is observed, immediately file a damage claim with the shipping agency and forward a copy to:
Liebert Corporation Attn: Traffic Department 1050 Dearborn Drive P.O. Box 29186 Columbus, OH 43229
Installation
Table 3 Standard and optional components shipped with OpenComms EM
Kit Part Number
STANDARD COMPONENTS (Shipped With Kits)
• EM Controller - 2 sensor ports ✔✔ ———
• EM PDU Controller - 2 sensor ports, 2 serial ports ✔✔
• vEM-14 Controller - 4 sensor ports, 2 serial ports
• CD with software and user manual ✔✔ ✔
• Power supply ✔✔ ✔
• Quick-start guide ✔✔ ✔
• Temperature sensor, 1 ft. (0.3m) ——
• Temperature & humidity combination sensor, 1 ft. (0.3m)
• Built-in temperature and humidity sensor
• Serial cable for MP Advanced Power Strips, 5 ft. (1.5m)
OPTIONAL COMPONENTS (May be Purchased Separately)
• Contact closure cable, 15 or 100 ft. (4.6 or 30.5m) • Humidity sensor, 15 or 60 ft. (4.6 or 18.3m)
• Water detection sensor, 15 or 60 ft. (4.6 or 18.3m) • Temperature sensor, 15 or 60 ft. (4.6 or 18.3m)
• Serial cable for MP Advanced Power Strips, 10 ft. (3m)
TMNET THCMNET TMPDUNET THCMPDUNET vEM-14
—— ✔✔
• Temperature & humidity combination sensor, 15 or 60 ft. (4.6 or 18.3m)
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2.2 Decide on Placement of the OpenComms EM

The unit may either be placed on a level surface or mounted on a wall, depending on the user’s appli­cation and the location of equipment to be connected and monitored. vEM-14 controllers may also be mounted in a rack.
• If placing the unit on a level surface, such as a shelf or a desk, proceed to 2.3 - Make Connec- tions.
• For wall or rack mounting, see the appropriate section for your model:
2.2.1 - Mounting the Unit on a Wall (EM / EM PDU Controllers) or
2.2.2 - Mounting the Unit on a Wall or in a Rack (vEM-14 Controllers)

2.2.1 Mounting the Unit on a Wall (EM / EM PDU Controllers)

The bottom of the EM / EM PDU controller has two holes to accommodate screws to secure the unit to a wall, either horizontally or vertically. You will need a screwdriver and any screws or bolts that will fit in the slots on the bottom of the unit.
1. Mark the wall for the mounting holes 1-3/4" (44.5mm) apart (see Figure 4).
2. Drill holes, if required, to install the two screws that will secure the unit to the wall. Clean up the debris.
3. If the wall material is not strong enough to hold the screws securely, use wall anchors.
4. Install the two screws—the screw heads must be small enough to slip through the larger, bottom portion of the mounting slot in the OpenComms EM (see Figure 4). The screws must also be large enough to extend over the edges of the top of the mounting slot.
5. Tighten the screws until they will hold the OpenComms EM tightly to the wall.
6. Hang the OpenComms EM on the screws, pushing the unit down until the screws are in the smaller, upper portion of the slot.
7. Proceed to 2.3 - Make Connections.
Installation
Figure 4 Mounting dimensions - EM / EM PDU Controllers
1-3/4"
(44.5mm)
horizontal mounting
1-3/4"
(44.5mm)
vertical mounting
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2.2.2 Mounting the Unit on a Wall or in a Rack (vEM-14 Controllers)

The vEM-14 controller may be mounted on a wall or in a rack, such as the Liebert Foundation. The unit has four holes on each side, as shown in Figure 5.
Figure 5 Mounting - vEM-14 Controllers
Installation
REAR OF
UNIT
After determining where to place the unit, check to ensure that you have all the hardware required to install the unit in a rack.
Obtain the needed tools and material. You will need these items for wall or rack mounting:
Follow the instructions below for either Wall Mounting or Rack Mounting.
Wall Mounting
The vEM-14 controller has four holes on each side to accommodate various ways of attaching the brackets (see Figure 5).
The brackets can be installed facing up or down for wall mounting.
1. Mark the wall for the mounting holes 1-3/4" (44.5mm) apart (see Figure 5).
2. Drill holes, if required, to install the screws that will secure the unit to the wall. Clean up the
3. If the wall material is not strong enough to hold the screws securely, use wall anchors.
4. Install the screws and tighten until they will hold the brackets tightly to the wall.
5. Hang the unit on the brackets.
6. Proceed to 2.3 - Make Connections.
Holes for rear mounting Mounting brackets
Holes for front mounting
• Brackets for rack mounting - 2 (provided)
• Screws to attach brackets - 4 (provided)
• Phillips screwdriver
debris.
FRONT OF UNIT
Rack Mounting
The vEM-14 controller has four holes on each side to accommodate various ways of attaching the brackets (see Figure 5). The unit may be front- or rear-mounted, and it can fit into a 19" or 23" rack.
The brackets can be installed facing forward or toward the rear for rack mounting.
1. Decide whether the unit will be front- or rear-mounted. Use the longer side of the bracket for a 19" rack; use the shorter side of the bracket for a 23" rack:
2. Attach the bracket using two screws at front of unit for front mounting. For rear mounting, use holes at rear of unit. Attach the second bracket on the other side.
3. Slide the unit into the rack and secure the brackets to the frame (mounting hardware not included).
4. Proceed to 2.3 - Make Connections.
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2.3 Make Connections

All ports are on the back of the OpenComms EM. The port placement and port labels differ for each model. Refer to Figure 2 for your model.

2.3.1 Connect Power to the Unit

• Connect the DC power adapter to the DCN/Power port on the back of the OpenComms EM, as shown in Figure 2. When power is connected, the Power indicator on the front is ON (red).

2.3.2 Connect to an Ethernet Network

• Connect a straight-through CAT5 Ethernet cable from your 10 Mbit network to the Ethernet/ETH port on the back of the OpenComms EM (see Figure 2).
• When the unit is connected to an active network, the Link/Cx indicator on the front is ON (green).

2.3.3 Connect to a Modem

• If using a modem, connect an RJ45 cable from a modem to the Modem port on the back of the unit (see Figure 2). Also refer to 6.1 - Modem Setup and Pinout Guide.
• When the unit is connected to a modem, the Activity/Modem/Mdm indicator on the front is ON (green).

2.3.4 Connect Sensors

Use a sensor—temperature, humidity, combination temperature & humidity or water detection (see Table 3)—or a contact closure cable (see 6.2 - Contact Closure Cable Pinout Guide).
Installation
For a contact closure cable, the orange/white and white/orange wires must be tied together to form the common. The blue/white wire is the contact that may be defined as either Normally Open or Normally Closed.
• Connect a sensor or contact closure cable to any sensor port—for example, Sensor 1—shown in Figure 2. These connections may be made in any order; the ports are identical and are configured to accept and recognize all types of sensors.
• When a sensor or contact closure cable is connected properly to any sensor port, the corresponding Sensor indicator on the front is ON (green).

2.3.5 Connect Serial Devices (EM PDU/vEM-14 Controllers)

Use the serial cable provided with EM PDU controllers (available separately for vEM-14 controllers), or see 6.3 - Serial Cable Pinout Guide (EM PDU & vEM-14 Controllers).
• Connect the six-wire end of the serial cable into the RS232 port of an MP Advanced power strip.
• Connect the other end (eight-wire) of the serial cable to either serial port (Serial 1 or Serial 2) of the OpenComms EM, shown in Figure 2.
• When a cable is connected properly to either port, the corresponding Serial 1 or Serial 2 indicator on the front is ON (green).
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3.0 ASSIGN AN IP ADDRESS

After connecting the OpenComms EM device to your network, the next step is to identify the device to the network by assigning an IP address.

Consult Your Network Administrator

Consult your network administrator to obtain an IP address that is appropriate for your network, as well as a subnet mask and default gateway address. When your device is assigned a new IP address, it is saved in the Electrically Erasable Programmable Read-Only Memory (EEPROM), meaning the unit will retain its IP address even after power is recycled.

Select a Method

There are three methods of assigning the IP address, as listed in Table 4, depending on your net­work’s method of assigning IP address (static or dynamic) and your computer’s operating system (OS). The IPSET.exe program is included on the CD that came with your unit.
Select a method and refer to Table 4 to determine which instructions to follow.

Table 4 Methods of assigning IP addresses

Method Recommended for: Follow instructions in:
IPSET.exe program
ARP command
DHCP
Network that uses static IP addresses; computer with Windows operating system (shipped with unit)
Network that uses static IP addresses; computer with Windows or other operating system
Network that uses Dynamic Host Configuration Protocol (DHCP), where IP addresses are assigned dynamically
Assign an IP Address
3.1 - Use IPSET.exe to Assign an IP Address
3.2 - Use ARP to Assign an IP Address
3.3 - Use DHCP to Assign an IP Address

3.1 Use IPSET.exe to Assign an IP Address

If your network uses static IP addresses and your computer has a Windows operating system, you may use the IPSET.exe program included on the CD that came with your unit.
NOTE
These steps must be done on the same network segment where the OpenComms EM is connected.
To do this:
1. Insert the OpenComms EM CD in the CD drive.
2. Click on the Start button, then on Run.
3. In the Run window, click on Browse to locate the file IPSET.exe on the CD, highlight the file name and click Open.
4. In the Run window, click OK. The IPSet window opens, as shown at right.
5. In the IP address box in the Target area, enter the IP address for your unit.
Note: The IP address must be unique on the network—not assigned to any other device.
6. Enter the Subnet Mask of your network in the Subnet box. (Depending on your IP address, some or all of the Subnet Mask might be entered automatically after you enter the IP address.)
7. Enter the default gateway address in the Default box.
8. In the MAC address box, enter the MAC address of your device. Note: The MAC address is found on a sticker on the bottom of the device.
9. Click on the Apply button. If the device identification is successful, the message “Successfully set IP address” appears in the Status box. (If not, the message “No response from target” appears in the Status box.)
10. Click on the Close button and proceed to 4.0 - Web Interface Overview.
Enter a unique IP address
Subnet mask
Default gateway address
Enter the unit’s MAC address (look on bottom of unit)
Apply button
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