安全
| 防火墙 |
NAT |
| 支持虚拟专用网 |
IPSec, PPTP, L2TP |
| MAC（媒体存储控制）地址过滤 |
Y |
以太网LAN特性
| 布线技术 |
10/100Base-T(X) |
| 以太网的数据传输率 |
10, 100 Mbit/s |
管理功能
| 通用即插即用（UPnP） |
Y |
| 支持服务质量（QoS） |
Y |
| 重启按钮 |
Y |
| 网上管理 |
Y |
协议
| DMZ支持 |
Y |
| 动态主机配置协议客户 |
Y |
| 动态主机配置协议服务器 |
Y |
| 支持网络协议 |
AAL5, ATM, ITU-T, PPP, PPPoE, RIP, NAT, DHCP, IGMP, SNTP |
ADSL的特点
| ADSL说明书 |
ADSL: ANSI T1.413, ITU-T G.992.1 Annex A, ITU-T G.992.2 Annex A, ITU-T G.994.1; ADSL2: ITU-T G.992.3 Annex A/L/M, ITU-T G.992.4 Annex A, ADSL2+: ITU-T G.992.5 Annex A/L/M |
其他功能
| 网路功能 |
Fast Ethernet |
| 输入电压 |
12 / 15 V |
环境条件
| 运行温度范围（T - T） |
32 - 104 °F |
另外
| 以太网连接器 |
Y |
| 连接方式 |
Wired |
| 包括 AC 适配器 |
Y |
| 以太网路(RJ-45)连接接口数量 |
4 |
DSL-2540U, ADSL2+, QoS, Fast Ethernet, 308g, black
What this product does
This ADSL router connects to the Internet using an integrated high-speed ADSL2/2+ interface. Multiple computers at home or the office can share the high-speed Internet connection. The router provides firewall protection and QoS for secure and smooth on-line games, voice communication and download of photos, files, music and video over the Internet. Built-in 4 Ethernet LAN ports provide ready connection for4 computers through the Ethernet cables.
Get high-speed ADSL speed
Ready ADSL connection with up to 24Mbps downstream and 1Mbps upstream. Watch TV, listen to live music and broadcast on the Internet, play games and experience clear Internet phone calls. Now, smooth streaming multimedia and VoIP voice are possible at home and in the office through a simple connection to this router.
Ultimate internet connection
The DSL-2540U ADSL router is an affordable high-performance ADSL router for home and the small office. With integrated ADSL2/2+ supporting up to 24Mbps download speed, firewall protection, Quality of Service (QoS) and 4-port switch, this router provides all the essentials that a home or small office needs to establish a secure and high-speed remote link to the outside world.
Affordable high-speed connection for home & small office
Designed as a very affordable high-performance ADSL router for home and SOHO users, the DSL-2540U provides not only the low-cost, high-speed Internet connection, but also the security and Quality of Service (QoS) required by users in today"s high-risk and versatile Internet environments.
Integrated 4-port switch
The DSL-2540U provides an integrated 4-port Ethernet switch for ready computer connection. With 4 built-in 10/100BASE-TX LAN ports, this router save you the cost and trouble of installing a separate Ethernet switch for home and office users to share the Internet broadband line.
Firewall protection & QoS
Security features prevents unauthorized access to the home and office network from Internet intruders. The router provides firewall security using Stateful Packet Inspection (SPI) and hacker attack logging for Denial of Service (DoS) attack protection. SPI inspects the contents of all incoming packet headers before deciding what packets are allowed to pass through. Router access control is provided with packet filtering based on port and source/destination MAC/IP addresses. For Quality of Service (QoS), the router supports multiple priority queues to enable a group of home or office users to experience the benefit of smooth network connection of inbound and outbound data without concern of traffic congestion. This QoS support allows users to enjoy high ADSL transmission for applications such as VoIP, streaming multimedia and on-line games over the Internet.
