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providers, thus the descriptions herein may not exactly match the product or its
accessories you purchase.
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Figure 2-3 Interfaces and buttons ......................................................................................... 7
Figure 3-1 Connecting the HG552a1.................................................................................... 9
Figure 4-1 Connect to the USB interface............................................................................ 10
Figure 5-1 Network model of voice services ...................................................................... 13
Tables
Table 2-1 Description of the elements for the network application diagram......................... 5
Table 2-2 Meanings of the indicators.................................................................................... 6
Table 2-3 Functions of the interfaces and buttons................................................................. 7
Table 4-1 Requirements on PC settings .............................................................................. 10
Table 5-1 Description of the equipment in voice service networking................................. 13
ii
Warnings and Precautions
1 Warnings and Precautions
To use the device properly and safely, read these warnings and precautions carefully and strictly
observe them during operation. Unless otherwise specified, the term "device" refers to the device
and its accessories.
Basic Requirements
z
During storage, transportation, and operation of the device, keep it dry and prevent it from
colliding with other objects.
z
Do not dismantle the device. In case of any fault, contact an authorized service center for
assistance or repair.
z
Without authorization, no organization or individual can change the mechanical, safety, or
performance design of the device.
z
When using the device, observe all applicable laws and regulations and respect the legal rights
of other people.
Environmental Requirements for Using the Device
z
Before connecting and disconnecting cables, stop using the device, and then disconnect it from
the power supply. Ensure that your hands are dry during operation.
z
Keep the device far from sources of heat and fire, such as a heater or a candle.
z
Keep the device far from electronic appliances that generate strong magnetic or electric fields,
such as a microwave oven or a refrigerator.
z
Place the device on a stable surface.
z
Place the device in a cool and well-ventilated indoor area. Do not expose the device to direct
sunlight. Use the device in an area with a temperature ranging from 0°C to 40°C.
z
Do not block the openings on the device with any object. Reserve a minimum space of 10 cm
around the device for heat dissipation.
z
Do not place any object (such as a candle or a water container) on the device. If any foreign
object or liquid enters the device, stop using the device immediately, power it off, remove all
the cables connected to it, and then contact an authorized service center.
z
During thunderstorms, power off the device, and then remove all the cables connected to it to
prevent it from getting damaged due to lightning strikes.
Precautions for Using Wireless Devices
z
When using the device, ensure that the antenna of the device is at least 20 cm away from all
persons.
z
Do not use the device where using wireless devices is prohibited or may cause interference or
danger.
1
Warnings and Precautions
z
The radio waves generated by the device may interfere with the operation of electronic medical
devices. If you are using any electrical medical device, contact its manufacturer for the
restrictions on the use of the device.
z
Do not take the device into operating rooms, intensive care units (ICUs), or coronary care units
(CCUs).
Areas with Inflammables and Explosives
z
Do not use the device where inflammables or explosives are stored, for example, in a gas
station, oil depot, or chemical plant. Otherwise, explosions or fires may occur. In addition,
follow the instructions indicated in text or symbols.
z
Do not store or transport the device in the same box as inflammable liquids, gases, or
explosives.
Accessory Requirements
z
Use only the accessories supplied or authorized by the device manufacturer. Otherwise, the
performance of the device may get affected, the warranty for the device or the laws and
regulations related to telecommunications terminals may become null and void, or an injury
may occur.
z
Do not use the power adapter if its cable is damaged. Otherwise, electric shocks or fires may
occur.
z
Ensure that the power adapter meets the specifications indicated on the device nameplate.
z
Ensure that the power adapter meets the requirements of Clause 2.5 in
IEC60950-1/EN60950-1 and it is tested and approved according to national or local standards.
z
For pluggable device, the socket-outlet shall be installed near the device and shall be easily
accessible.
Safety of Children
Keep the device and its accessories out of the reach of children. Otherwise, they may damage the
device and its accessories by mistake, or they may swallow the small components of the device,
causing suffocation or other dangerous situations.
Maintenance
z
If the device is not used for a long time, power it off, and then remove all the cables connected
to it.
z
If any exception occurs, for example, if the device emits any smoke or unusual sound or smell,
stop using the device immediately, power it off, remove all the cables connected to it, and then
contact an authorized service center.
z
Do not trample, pull, or overbend any cable. Otherwise, the cable may get damaged, causing
malfunction of the device.
z
Before cleaning the device, stop using it, power it off, and then remove all the cables connected
to it.
2
Product Overview
z
Use a clean, soft, and dry cloth to clean the device shell. Do not use any cleaning agent or spray
to clean the device shell.
2 Product Overview
Product Features
2.1
The EchoLife HG552a1 (hereinafter referred to as the HG552a1) is a high-performance
Asymmetrical Digital Subscriber Line (ADSL) voice gateway designed for home users and small
office and home office (SOHO) users. This section describes the features of the HG552a1.
Flexible Routing
z
Providing an embedded Point to Point Protocol over Ethernet (PPPoE) dialer
z
Supporting the Dynamic Host Configuration Protocol (DHCP) server
z
Supporting simultaneous multi-user access
Abundant Service Interfaces
z
Providing four high-speed Ethernet interfaces
z
Supporting the routing mode and the bridge mode
z
Providing the voice function through the Plain Old Telephone Service (POTS) interface
z
Supporting the multi-service set identifier (MSSID) of Wireless Fidelity (WiFi), which
enables users to use wireless networks conveniently and securely
z
Providing mobile storage capability through the USB host interface
Outstanding Voice Functions
Providing VoIP service and T.38 facsimile service
Standard TR-069 Management Capability
z
Providing complete compatibility with the TR-069 standard of the Digital Subscriber Line
(DSL) Forum
z
Providing complete remote management and diagnosis
z
Providing a zero-configuration solution, which significantly lowers the operation and
maintenance costs and can be combined with the automatic upgrade and service provisioning
processes to conveniently distribute customized services