Huawei Quidway S3300 Series User Manual

2.1 Power Supply Configuration
This section describes the power supply configuration on the S3300.
PoE Power Supply
The downlink electrical interfaces of S3300 PoE switches provide PoE power. Each interface
provides a maximum of 30 W power and supports a maximum of 100 m power supply distance.
The S3300 can transmit both current and data on a pair of signal cables.
PoE power supply units are classified into two types: 500 W current sharing power supply and
250 W current sharing power supply.
Power Supply Unit PoE Power Device Power
500 W current sharing power
supply
369.6 W 120 W
250 W current sharing power
supply
123.2 W 120 W
The S3300 PoE switches include:
l S3328TP-PWR-EI
S3328TP-PWR-EI provides two power supply unit slots. Each slot accommodates a 500
W or 250 W power supply unit. The power supply configurations are shown in the following
table.
Power Supply Unit
PoE Power Maximum Number of
Interfaces
250 W current
sharing power
supply
- 123.2 W
l 802.3af: 8
l 802.3at: 4
500 W current
sharing power
supply
- 369.6 W
l 802.3af: 24
l 802.3at: 12
250 W current
sharing power
supply
250 W current
sharing power
supply
246.4 W
l 802.3af: 16
l 802.3at: 8
500 W current
sharing power
supply
500 W current
sharing power
supply
739.2 W
l 802.3af: 24
l 802.3at: 24
l S3352P-PWR-EI
S3352P-PWR-EI provides two power supply unit slots. Each slot accommodates a 500 W
or 250 W power supply unit. The power supply configurations are shown in the following
table.
2 Power Supply Unit
Quidway S3300 Series Ethernet Switches
Hardware Description
2-2 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2011-01-30)

Huawei Quidway S3300 Series Specifications

General

Brand	Huawei
Model	Quidway S3300 Series
Category	Switch
Language	English