Atrie DB-120 WL User Manual
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1 OVERVIEW
1.1 ABOUT WIRELESS ADSL
An ADSL MODEM is a broadband Internet access device, which utilizes the high frequency segment of
the phone line to transmit high-speed data without affecting the voice transmission. The frequency of the
ADSL signal is higher than that of voice, so voice and ADSL signal can coexist in one line by using a splitter to
insulate each from the other. ADSL data transfer adapts the asymmetry model. It supports upload
transmission speed up to 1Mbps and download speed up to 8 Mbps (24Mbps for ADSL2+). ADSL is an ideal
device for broadband access.
But the ADSL users are also limited by the cable and can’t move freely. Wireless ADSL is a new device
that integrates WLAN and ADSL functions. User can slip the leash to visit Internet expediently as long as they
install WLAN card into their computer. The device can be utilized in company, hotel, cafe, airport, station, and
financial institution and home where there are many mobile users and the network infrastructures are difficult to
establish. The wireless ADSL supports 802.11b, 802.11b+ and 802.11g mode with maximum data rate 54Mbps.
1.2 ABOUT ADSL2/2+
Transmission performance of ADSL2 is improved comparing with the first generation of ADSL. These
improvements are mainly concerned with long distance, anti-line-loss, anti-noise, etc. By doubling the
transmission bandwidth, ADSL2+ has implemented a downlink rate as high as 24 Mbps. Therefore, Internet
applications such as synchronous transmission of multi video stream, online games and huge capacity of
downloading files are made possible.
1.3 FEATURES
1.
Support ANSI T1.413 ISSUE 2, ITU G.992.1(G.DMT), ITU G.992.2(G.LITE), ITU G.992.3(ADSL2),
ITU G.992.5(ADSL2+).
2.
Support data transportation among ADSL, Ethernet and WLAN
3.
Support 802.11b, 802.11b+ and 802.11g mode
4.
Web-based configuration and monitoring.
5.
Support up to 8 PVCs.
6.
Routing function.
7.
Support NAT, DHCP.
8.
Maximum downstream transmission rates of 8 Mbps (24Mbps for ADSL2+).
9.
Maximum upstream transmission rates of 1Mbps.
10.
Transmission distance up to 5.5 km.
11.
Wireless access distance is more than 100m
