Lenovo 46M4002, Installation And Maintenance Manual

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Chapter 6. Using the PDU environment sensor
The PDU environment sensor is a connectivity device that enables you to remotely monitor the temperature,
humidity, and status of two contact devices through a standard web browser, providing greater power
management control and flexible monitoring.
When the PDU environment sensor is connected to the environment sensor connector on the PDU,
temperature and humidity readings are automatically displayed in the web interface. To access the readings,
you must run the web browser and connect to the PDU IP address.
Power-on LED PDU environment
sensor
Ethernet
connector
The PDU environment sensor kit comes with one PDU environment sensor, screws, hook-and-loop
fasteners, and Ethernet cable. You can install the device anywhere on the rack by using either the screw or
the self-adhesive hook-and-loop fasteners.
Features
The PDU environment sensor has the following features:
• The hot-swap feature simplifies installation by enabling you to install the probe safely without turning off
power to the PDU or to the loads that are connected to it.
• It monitors temperature and humidity information of any environment that you want, to protect your critical
equipment.
• It measures temperatures between 0°C and 80°C (32°C and 176°F) with an accuracy of ±1°C.
• It measures relative humidity between 10% and 90% with an accuracy of ±5%.
• It can be located away from the PDU with a Category 5 network cable up to 20 m (65.6 ft) long.
• It monitors the status of the two user-provided contact devices.
• Temperature, humidity, and contact closure status can be displayed through a web browser.
• User-selectable alarm thresholds enable you to define acceptable temperature or humidity limits.
• Notification is by e-mail through Simple Mail Transfer Protocol (SMTP), using e-mail client software when
acceptable alarm limits are exceeded or contact status changes.
• Changes in external contact status are logged in the PDU event history log.
• When temperature and humidity values exceed user-selectable limits, the event is logged in the PDU
event history log.
Connecting the PDU environment sensor to the PDU
To connect the PDU environment sensor to the PDU, complete the following steps:
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