Huawei S6700 Series

Figure 2-6 Power supply connections of dual DC power modules
PWR2
NEG RTN
Motherboard
GND-53V
PWR1
NEG RTN
NEG: Negative cable RTN: Positive cable GND: -53 V reference ground
Figure 2-7 shows the power supply connections of dual AC power modules. After AC power
is transmitted to the PWR module, the PWR module provides -53 V output voltage, and the
motherboard provides power for the entire device.
Figure 2-7 Power supply connections of dual AC power modules
PWR2
L N
Motherboard
GND-53V
PGND
PWR1
L N PGND
L: Live wire
N: Neutral wire PGND: Protective ground wire GND: -53 V reference ground
2.4.6 Heat Dissipation
Table 2-10 describes the heat dissipation methods of the S6700-EI.
S6700 Series Ethernet Switches
Hardware Description 2 Chassis
Issue 12 (2015-07-31) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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