Huawei AR1200 Series Hardware Description page 46

Huawei AR1200&2200&3200 Series Enterprise Routers
Hardware Description
Functions
The PWR350A uses 90 V AC-290 V AC input power, and provides 12 V/350 W output power.
The PWR350A has a fan.
Table 3-5 Protection functions of the PWR350A
Item
Input
protectio
n
Output
protectio
n
Overheating protection
Appearance
Figure 3-9
Issue 03 (2012-04-20)
Table 3-5
Minimu
m Value
Input -
undervolta
ge
protection
Input 305 V
overvoltag
e
Input -
overcurren
t protection
Output 14 V
overvoltag
e
protection
Output 120% x
overcurren 29.2 A
t protection
Output -
short-
circuit
protection
75°C
(167°F)
shows the appearance of the PWR350A.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
describes the protection functions of the PWR350A.
Typical Maximu
Value m Value
- 75 V
- 325 V
- -
- 16 V
- 150% x
29.2 A
- -
- -
3 Power Supply Units
Remarks
Input voltage can be
restored to the normal
range automatically, and
hysteresis is 5 V or less.
Input voltage can be
restored to the normal
range automatically, and
hysteresis is 5 V or less.
The AC input power lines
(L and N) have fuses.
-
-
Output short-circuit can be
recovered automatically.
When temperature exceeds
the upper limit, the power
supply unit automatically
shuts down to avoid
permanent damage. When
temperature is restored to
the normal range, the
power supply unit restarts
automatically.
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