Environment

Configure Temperature and Humidity Sensors

Path: Environment

Through the Environment tab, when you have a temperature or a temperature and humidity sensor connected to the Rack PDU, you can set thresholds for Warning and Critical alarm generation (see “Device status icons” on page 54 for details on each type of alarm).

For temperature:

•If the high temperature threshold is reached, the system generates a Warning alarm.

•If the maximum temperature threshold is reached, the system generates a Critical alarm. Similarly, for humidity:

•If the low humidity threshold is reached, the system generates a Warning alarm.

•If the minimum humidity threshold is reached, the system generates a Critical alarm.

Note: Click the thermometer symbol in the upper right corner to toggle between Fahrenheit and Celsius.

To configure temperature and humidity sensors:

1.Enter values for minimum, maximum, high, and low thresholds.

2.Enter Hysteresis values. (See “Hysteresis” on page 71 for details.)

3.Enable alarm generation as desired.

4.Click Apply.

Hysteresis. This value specifies how far past a threshold the temperature or humidity must return to clear a threshold violation.

•For Maximum and High temperature threshold violations, the clearing point is the threshold minus the hysteresis.

•For Minimum and Low humidity threshold violations, the clearing point is the threshold plus the hysteresis.

Increase the value for Temperature Hysteresis or Humidity Hysteresis to avoid multiple alarms if temperature or humidity that has caused a violation then wavers slightly up and down. If the hysteresis value is too low, such wavering can cause and clear a threshold violation repeatedly.

Example of rising but wavering temperature: The maximum temperature threshold is 85°F, and the temperature hysteresis is 3°F. The temperature rises above 85°F, violating the threshold. It then wavers down to 84°F and then up to 86°F repeatedly, but no clearing event and no new violation occur. For the existing violation to clear, the temperature would have to drop to 82°F (3°F below the threshold).

Example of falling but wavering humidity: The minimum humidity threshold is 18%, and the humidity hysteresis is 8%. The humidity falls below 18%, violating the threshold. It then wavers up to 24% and down to 13% repeatedly, but no clearing event and no new violation occur. For the existing violation to clear, the humidity would have to rise to above 26% (8% past the threshold).

71

Switched Rack PDU User Guide

Page 79 Page 81
Page 80
Image 80
APC AP8941, AP89XX manual Environment, Configure Temperature and Humidity Sensors
Page 79 Page 81

AP89XX, AP8941 specifications

The APC AP8941 and AP89XX series are advanced power distribution units (PDUs) designed to meet the growing demands of modern data centers and IT environments. These PDUs are well-regarded for their reliability, efficiency, and ease of use, making them integral components for effective power management in critical applications.

One of the standout features of the AP8941 is its capability to provide both local and remote management. Equipped with a web interface, users can monitor power usage, track energy consumption, and gain insights into the performance of connected equipment from virtually anywhere. This remote capability is particularly beneficial for administrators managing multiple sites, as it enables efficient troubleshooting and minimizes downtime.

The AP8941 also supports environmental monitoring by integrating with temperature and humidity sensors. This feature ensures that data centers maintain optimal conditions to protect equipment from overheating or humidity-induced failures, thus enhancing the overall reliability of the power infrastructure.

Another significant aspect of the AP8941 is its ability to distribute power efficiently through its various outlet configurations. The flexible plug-and-play design allows users to customize their power distribution setups for diverse applications, accommodating unique configurations and equipment requirements.

Security is paramount in today’s IT landscape, and the AP89XX series addresses this concern through advanced security features. The units include user authentication and role-based access control, ensuring that only authorized personnel can access critical power management functionalities.

Additionally, the power visualization tools available with the AP8941 enable users to analyze real-time data, identify potential issues, and optimize their power usage. The sleek design and Mounting options make installation straightforward, whether horizontal or vertical, in standard racks or enclosures.

The series supports a variety of power input options and offers robust overload protection, which is essential for preventing damage to both the PDU and connected devices. The combination of management capabilities, security features, and real-time monitoring tools positions the APC AP8941 and AP89XX series as an excellent choice for IT professionals seeking reliable power management solutions in today's data-heavy environments.

In conclusion, the APC AP8941 and AP89XX offer a comprehensive suite of features that cater to the complex needs of data centers. With their focus on efficiency, security, and management capabilities, these PDUs serve as an essential part of modern IT infrastructure, ensuring operational continuity and power reliability.
Top Page Image Contents