它与ADSL，ADSL2和ADSL2 +标准的要求D820B是一个以太网端口，一个ADSL终端。它支持高达24Mbps的下行速率1Mbps的和上行速率，以及桥接功能。当单独使用时，它使一台PC通过拨号接入Internet;当连接到路由器，它使多台电脑共享上网。此外，6000V照明密集区加强防雷设计，有效拉长了设备的使用寿命;宽电压范围设计特别适应与电压不稳的地区。具有性能稳定，外观精美和极强的兼容性，它是为SOHO和小型企业用户访问Internet的最佳选择。

• 6000V增强型防雷击技术，用于雷电密集区

• 高达24Mbps的下行速率1Mbps的和上行速率

• 主流DSLAM设备兼容

• 宽电压范围设计，适应与电压不稳的地区

• FDM能够打电话，传真和上网冲浪活动，而不相互干扰同时进行

• 符合ADSL，ADSL2和ADSL2 +标准

• 基于Web的管理界面，支持固件升级

• 支持Internet多媒体应用

• 强大的驱动capability--高达6.5公里传输距离

• 易于安装和配置

D820B which complies with ADSL, ADSL2 and ADSL2+ standards is an ADSL terminal with one Ethernet port. It supports up to 24Mbps downstream rate and 1Mbps upstream rate, as well as Bridging function. When used independently, it enables a single PC to access Internet through dialup; when connected to a router, it enables multiple PCs to share Internet access. In addition, 6000V enhanced lightning-proof design for lighting-intensive areas effectively elongates the device's life time; Wide voltage range design specially adapts to areas with unstable voltage. With stable performance, exquisite appearance and great compatibility, it is the best choice for SOHO and small enterprise users to access the Internet.

• 6000V enhanced lightning-proof technology designed for lightning-intensive areas

• Up to 24Mbps downstream rate and 1Mbps upstream rate

• Compatible with mainstream DSLAMs

• Wide voltage range design adaptable to areas with unstable voltage

• FDM enables calling, faxing and Internet surfing activities to proceed simultaneously without mutual interferences

• Compliant with ADSL, ADSL2 and ADSL2+ standards

• Web-based management interface supports firmware upgrade

• Supports Internet multimedia application

• Powerful driving capability-- up to 6.5Km transmission distance

• Easy to install and configure