Power Supply Principle; Figure 3-3 Configuration Of The S9303 Power Supplies - Huawei Quidway S9300 Hardware Description

3 Power Supply
S9303
The power supplies are located in the PWR1 to PWR2 slots of the S9303. The DC power supplies
and AC power supplies are supported. PWR1 is in area A, and PWR2 is in area B. Area A and
area B work in backup mode, as shown in

Figure 3-3 Configuration of the S9303 power supplies

The maximum power consumption of the S9303 is 350 W. You can use DC power supplies or
AC power supplies on the S9303.
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3.1.2 Power Supply Principle

Figure 3-4
principle of the AC power supplies.
3-6
– Each AC power supply is configured in PWR2 and PWR4, and the filler panels are
installed in PWR1 and PWR3.
– Each AC power supply is configured in PWR1 and PWR4, and the filler panels are
installed in PWR2 and PWR3.
– 2+2 configuration, 110 V AC power supplies (800 W)
One 110 V AC power supplies provide power of 400 W. To meet the power requirement
of the S9306, the backup mode must be adopted for 110 V AC power supplies. The AC
power supplies are installed in the PWR1 to PWR4 slots.
LPU
MCU
PW R1
电源模块
Master PWR Slave PWR
DC power supplies, 1+1 configuration
Each power supply is configured in active area A and standby area B. The two power
supplies work in backup mode, as shown in
Configuration of the S9303 AC power supplies
– 1+1 configuration, 220 V AC power supplies (800 W)
The maximum power consumption is 800 W. Each AC power supply is configured in
active area A and standby area B, as shown in
– 1+1 configuration, 110 V AC power supplies (400 W)
Two 110 V AC power supplies provide power of 400 W. The total power consumption
of the S9303 is less than 400 W; therefore, the S9303 can use two 110 V AC power
supplies in backup mode, as shown in
shows the principle of the DC power supplies on the S9300.
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Figure
LPU
LPU
MCU
PW R2
PoE
Figure
Figure
Quidway S9300 Terabit Routing Switch
3-3.
3-3.
Figure 3-3.
3-3.
Figure 3-5
Hardware Description
shows the
Issue 01 (2010-12-15)