HP 11900 User Manual - Page 4

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HP 11900 User Manual
Item
Humidity

Power supply configuration

You can determine the number of power supplies to be configured for the system
according to the actual power consumption and power supply conditions.
In an environment with two mains power inputs, you can configure N+N redundant
•
mode.
In an environment with only one mains power input, you can configure N+1 or N+N
•
redundant mode.
For easy usage and maintenance, configure a proper circuit breaker for each power
•
input. The rated current of the circuit breaker must be more than 80 A.
NOTE:
N+1
In the terms
slots in the device. N+1 or N+N must not be more than the total number of power
supply slots.

Installing and removing a power supply

Installing a power supply
Figure 2
illustrates the flow for installing a power supply. Strictly follow the sequence to
avoid possible dangers.
Operating
humidity
(noncondensing)
Storage humidity
(noncondensing)
N+N
and
, the value of N depends on the number of power supply
Specifications
10% to 95%
5% to 95%
4