HP Rack and Power Manager User Guide

Operation
After the CMC sensors are set up, the CMC automatically activates the following alert
actions:
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Temperature 1 or Temperature 2 is detected below minimum, at warning, or above
maximum—An internal CMC alarm sounds and both alarm relays are triggered.
NOTE: For more information about alarm relays, refer to “Accessory Setup Screen” in this chapter.
Humidity is detected below minimum or above maximum—An internal CMC alarm
sounds and both alarm relays are triggered.
Voltage is detected below minimum or above maximum—An internal CMC alarm
sounds and both alarm relays are triggered.
Smoke is detected—Fans are turned off and rack doors are unlocked if these options are
selected on the Sensor Setup screen.
Intrusion is detected—Fans are turned off and the shock sensor is disabled if these
options are selected on the Sensor Setup screen.
Additional alert actions are configured on the Event Response Overview screen.
Accessory Setup Screen
The Accessory Setup screen enables you to enter information about the accessories connected
to the CMC. After entering information on this screen, do one of the following:
Click Apply at the bottom of the screen to accept the information that has been entered.
Click Undo Changes to reject all changes and keep the screen open.
Fans Tab
Select the Fans tab to configure the fan settings.
1. Select Available for each fan that is connected to the CMC. If a fan that is not connected
is shown as available, the CMC will erroneously detect an alarm condition and send
alerts.
2. Enter the temperature at which fans turn on in the Start At field.
3. Set the operating range for the fan in the Hysteresis field. For example, if the Hysteresis
value is set to 8° F and the Start At value to 75° F, the fan switches on when the
temperature reaches 75° F and switches off when the temperature has decreased by 8° F
(to 67° F).
HP Rack and Power Manager User Guide 5-9
HP CONFIDENTIAL Codename: Swordfish Part Number: 311371-002 Last Saved On: 2/3/04 3:32 PM