Huawei R250D-E Hardware Installation And Maintenance Manual page 20

R250D-E
Hardware Installation and Maintenance Guide
Table 2-3 Cable connections
No.
1
2
3
4
5
Pay attention to the following points when bundling the cables:
l
Issue 01 (2016-09-30)
Cable or Device
DC power adapter
USB cable
Phone cable or
Network cable
Network cable
Network cable
NOTE
l If the R250D-E needs to connect to the Ethernet, ensure that the Ethernet cable is working properly.
If the Ethernet cable is not working properly, the R250D-E may fail to be powered on or fail to
work. Before connecting an Ethernet cable to the R250D-E, use the cable test tool to check whether
the cable is qualified. If the cable is unqualified, replace it.
l The R250D-E is powered by either the DC power supply or PoE power supply.
l When the R250D-E works in 802.3af power supply mode, the USB port and PoE_OUT port have no
power output; when it works in 802.3at or DC power supply mode, the USB port and PoE_OUT port
have power output.
Different types of cables must be separately routed with the minimum spacing of 30 mm
and cannot be entangled or crossed. Cables should be parallel or separated using
dedicated separators.
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Copyright © Huawei Technologies Co., Ltd.
Description
When the device uses the DC power supply, use a power
adapter for power supply; otherwise, the device may be
damaged.
Connects to a USB flash drive or other storage devices to
extend the storage space of the device. The USB port
supports the USB 2.0 standard and a maximum output
power of 2.5 W.
The cable is inserted into a Pass Through port for
transparent transmission.
l Connects to STAs through downlink network ports.
l CAT5e cables or higher must be used.
l The length of a network cable cannot exceed 100 m.
However, when the GE1/PoE_OUT port is used for
PoE output, the network cable inserted in this port
cannot be longer than 20 m.
l The GE1/PoE_OUT port supports PoE output and
provides a maximum of 10 W power output.
NOTICE
l The GE1/PoE_OUT port complies with the category
detection mechanism of 802.3af.
l Do not insert a PoE input cable into the GE1/PoE_OUT port.
l Connects to the Ethernet port of an upper-layer PSE
through the uplink network port.
l The GE0/PoE_IN port supports PoE input.
l CAT5e cables or higher must be used.
l The length of a network cable cannot exceed 100 m.
2 AP Installation
14