Figure 3-4 Principle of the DC power supplies on the S9300
Board 2 Board n
-48V1/-60V1
-48V2/-60V2
DC
PWR1
-48/-60VRTN
DC
PWR2
-48V2/-60V2
RTN1
RTN2
Board 1
Backplane
-48/-60VRTN
RTN1
RTN2
-48V1/-60V1
-48V/-60V: power cable RTN: power grounding cable
Quidway S9300 Terabit Routing Switch
Hardware Description 3 Power Supply
Issue 01 (2010-12-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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