Surveon NVR7312(2U), User Manual

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4.4.2. Replacing the Power Supply Module / Cooling
Module
The power supply units (PSU) are configured in a redundant configuration with each
PSU housed in a robust steel canister.
4.4.3. Detecting a Failed PSU
If a PSU module fails, the system notifies you through the following indicators:

PSU status LED locations
 Audible alarm
 Firmware utility (refer to Firmware User Manual in the CD-ROM for
details)
4.4.4. Replacing Power Supply Unit
A failed PSU should be replaced as soon as possible, but only when you have a
replacement module in your hand. Contact your vendor for more details.
WARNING
Although the system can operate with a failed PSU in a system, it is not
recommended to run the system with a failed PSU for an extended period of
time. The failed spare redundant PSU should be replaced as soon as possible!
To replace a PSU, follow these steps:
1. Power off the system, turn off the PSU and unplug the power cord.