R240D
Hardware Installation and Maintenance Guide
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
10/100 Mbit/s interface:
connects to the wired
Ethernet.
Seen from the bottom, the
four Ethernet interfaces are
ETH0, ETH1, ETH2, and
ETH3 from left to right.
Phone interface: connects to
a POTS phone or modem
device.
Reset button: restores
factory settings and restarts
the device if you hold down
the button more than 3
seconds.
The device supports the PoE
power supply and DC power
supply.
To connect the device to a
DC power source, use the
power adapter delivered
with the device; otherwise,
the device maybe damaged.
1.2 Indicator Description
R240D provides only one indicator, as shown in Figure 1-2.