DQ Technology 708 Users Manual
VisionNet 708
User’s Manual
VisionNet 708 ADSL Ethernet Modem
Manual
ADSL Modem
Copyright 2002 DQ Technology Inc.
All Rights Reserved.
No part of this publication may be reproduced or distributed in any form or by any means, or stored in a
database or retrieval system, without the prior written permission of DQ Technology, Inc.
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Manual
ADSL Modem
Contents
Chapter 1. Introduction
▣ What is ADSL ▣ VisionNet 708 Layout and LED Description ▣ VisionNet 708 Specification ------
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Chapter 2. Before Installation
▣ Safety Check
▣ The climate condition Check
▣ System Requirement Check
▣ VisionNet 708 Package Check
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Chapter 3. Installation Of VisionNet 708
▣ Installation VisionNet 708
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▣ Connect and Disconnect the Internet
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Manual
ADSL Modem
Chapter 1. Introduction
This chapter provides the brief concept of ADSL, and the external form and specification of
VisionNet 708.
This chapter covers the following topics:
◈
What is ADSL
◈
VisionNet 708 Layout and LED Description
◈
VisionNet 708 Specification
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Manual
ADSL Modem
◈ What is ADSL
ADSL (Asymmetric Digital Subscriber Line) is a technology for transmitting digital information
at a high bandwidth on existing phone lines to homes and businesses. Unlike regular dialup
phone service, ADSL provides contin uously available, "always on" connection. ADSL is
asymmetric in that it uses most of the channel to transmit downstream to the user and only a
small part to receive information from the user. ADSL simultaneously accommodates analog
(voice) information on the same line. ADSL is generally offered at downstream data rates from
512 Kbps to about 8 Mbps, upstream data rates up to 1Mbps.
ADSL was specifically designed to exploit the one- way nature of most multimedia
communication in which large amounts of information flow toward the user and only a small
amount of interactive control information is returned.
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Manual
ADSL Modem
◈ VisionNet 708 Layout and LED Description
VisionNet 708 (Front view)
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Manual
Location
ADSL Modem
Location Label
① POWER VisionNet 708 power status It’s On when VisionNet 708 is
② USB USB is awake USB connected PC which is working
③ Tx/Rx Data transmission It’s flashing whenever data is
④ SYNC ADSL Line initialization and
⑤ LAN VisionNet 708 LAN status It’s On when VisionNet 708 is
⑤ PPP PPP Connected status It’s On when VisionNet 708 is
Status Description
connected to PC which is working.
transmitted over VisionNet 708
It’s remain on after ADSL line
synchronization
synchronization achieved
connected to PC LAN which is
working.
connected to PPP which is working.
뒷 면
① LINE ADSL Line Port Connects telephone Line cable in ADSL line.
② PHONE Telephone
③ Console Console Port
④ Ethernet Ethernet Port Connects Ethernet cable from the LAN port in
⑤ USB USB Port Ethernet Firmware Upgrade (Option)
⑥ DC IN DC IN Port Connects Adaptor
⑦ Power Power Switch VisionNet 708 Ethernet Power On/Off
Lable
Port
Connection Port
(Option)
Connects the telephone cable in your
telephone.
Console Setting Port.
your PC.
Function
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Manual
may vary depending on your ADSL service, the
◈ VisionNet 708 Modem Specification
ADSL Modem
Size (outfit) 200mm X 147mm
Power (V / A) 600mA 18V
Operating
5℃ ~ 45℃
Temperature
ADSL Standards
ANSI T1.413 Issus 2, ITU G.DMT(G.992.1), ITU G.Lite(G.992.2)
compliant
Connection Speed Down Stream(Rx) : 8Mbps(Max) , Up Stream(Tx) : 860Kbps (Max)
Modulation DMT (Discrete multi-tone)
Telephone Line(RJ 11) connector 2 port , Ethernet 1 port,
Connector
USB Line 1 port,
Interface Ethernet Interface
Operating System Windows 98/98SE/ME/NT 4.0/2000/XP, Macintosh, Linux, UNIX compliant
PPP Over ATM (RFC 2364)
Specification
Protocol
P V C value range VPI: 0~255 , VCI :0~65,535
<<Notice >>
The connection speed of VisionNet 708
ADSL line condition, your PC specification and the distance between ADSL modem and
Central Office of your local ADSL service provider.
Bridged Ethernet Over ATM (RFC 1483)
Classical IP Over ATM (RFC 1577)
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