45UPS Network Management Card 2 User’s Guide
Environmental Monitoring
The Universal I/O menu tab displays when you have installed the temperature and humidity
sensors AP9335T/ TH or the Dry Contact I/O Accessory (AP9810).
The Environment menu options display only when an External Environmental Monitoring card
(AP9612TH) is connected to a UPS with the AP9631 NMC.
The Environmental Monitor Card menu tab displays with a UPS that has the AP9630 NMC.

Overview Page

Path: Environment > Overview
The Overview page lists the status of any environmental monitoring device associa ted with the AP9631 NMC.

Temperature and Humidity Page

Path: Environment > Overview>Temp & Humidity
This displays the name, alarm status, temperature, and humidity (if supported) for each sensor. Click the name
of a sensor to edit the name and location and to configure its thresholds and its hysteresis.
Thresholds. For each sensor, you set the thresholds for temperature and (if supported) humidity measured at
the sensor. When a threshold is breached (passed), the alarm signals.
Hysteresis. Use the Hysteresis value to avoid getting alarms repeatedly for the same violation of the
temperature or humidity threshold.
When the temperature or humidity that causes a violation tends to waver slightly up and down, it can
repeatedly trigger the alarm. A higher hysteresis value can prevent this.
If the hysteresis value is too low, the wavering can first c ause a threshold violation and then clear it , meaning
the alarm can be triggered several times. See the examples below, after noting the following.
• For maximum and high threshold violations, the clearing point for the alarm is the threshold minus the
hysteresis value you input.
• For minimum and low threshold violations, the clearing point is the threshold plus the hysteresis value.
Example of rising but wavering humidity: Say the maximum humidity threshold is 65%, and the humidity
hysteresis is 10%. Then, the humidity rises above 65%, causing an alarm. It then wavers down to 60% and up
Heading Displayed Information
Temperature
and Humidity
Lists all sensors and, for each sensor, the alarm status, temperature currently recorded, and
humidity (if supported) currently recorded. For detailed status or to reconfigure a sensor's
parameters, click the sensor's name.
Input Contacts Lists each enabled input contact and its alarm status and current state (open or closed). For detailed
status or to configure a contact's parameters, click its name.
Output Relay Lists the alarm status and the current state (open or closed) of the output relay of the integrated
Environmental Monitor. For detailed status or to configure a contact's parameters, click its name.
Recent
Environmental
Events
The Recent Environmental Events field lists, in reverse chronological order, the most recent
environmental events. To view the entire event log, click More Events at the lower right.