DSL-2640U/RB

Wireless ADSL2+ (Annex B) Router with Ethernet WAN Support
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ADSL Port and 4-port Switch
The router is equipped with an ADSL port to connect to an ADSL line. The built-in 4-port switch enables you to connect Ethernet-enabled computers, game consoles, and other devices to your network. In addition, any Ethernet port of the device can be used to connect to a private Ethernet line.
 
Wireless Interface
You are able to quickly create a wireless network at home or in your office, which lets your relatives or employees connect to your wireless network virtually anywhere (within the operational range of your wireless network). The router can operate as a base station for connecting wireless devices of the standards 802.11b, 802.11g, and 802.11n.
The router supports multiple functions for the wireless interface: several security standards (WEP, WPA/WPA2), MAC address filtering, and the WPS function.
In addition, the device is equipped with a button for switching the Wi-Fi network off/on. If needed, for example, when you leave home, you can easily switch the router’s WLAN by pressing the button, and devices connected to the LAN ports of the router will stay online.
 
Security
The wireless router DSL-2640U includes a built-in firewall. The advanced security functions minimize threats of hacker attacks, prevent unwanted intrusions to your network, and block access to unwanted websites for users of your LAN.
Built-in Yandex.DNS service protects against malicious and fraudulent web sites and helps to block access to adult content on children's devices.
 
Easy configuration and update
You can configure the settings of the wireless router DSL-2640U via the user-friendly web-based interface (the interface is available in two languages – in Russian and in English).
The fast and easy configuration wizard allows you to specify all needed parameters in several simple steps.
You can simply update the firmware: the router itself finds approved firmware on D-Link update server and notifies when ready to install it.

 

Põhiomadused

Hardware
Processor
• RTL8676S (450MHz)
RAM
• 32MB, SDRAM
Flash
• 8MB, SPI
Interfaces
• RJ-11 ADSL port
• 4 10/100BASE-TX LAN ports
LEDs
• POWER
• 4 LAN LEDs
• WLAN
• WPS
• DSL
• INTERNET
Buttons
• ON/OFF button to power on/power off
• RESET button to restore factory default settings
• WPS button to set up wireless connection
• WIRELESS ON/OFF button to enable/disable wireless network
Antenna
• External non-detachable omnidirectional antenna (2dBi gain)
Power connector
• Power input connector (DC)
DSL Parameters
ADSL Standards
• ADSL: ANSI T1.413-1998 Issue 2; ITU-T G.992.1 (G.dmt) Annex B, ITU-T G.992.2 (G.lite) Annex B
• ADSL2: ITU-T G.992.3 Annex B
• ADSL2+: ITU-T G.992.5 Annex B
ATM/PPP Protocols
• Bridged and routed Ethernet encapsulation
• VC-based or LLC-based multiplexing
• ATM Forum UNI3.1/4.0 PVC (up to 8 PVCs)
• ATM Adaptation Layer Type 5 (AAL5)
• ITU-T I.610 OAM F4/F5 loopback
• ATM QoS
• PPP over ATM (RFC 2364)
• PPP over Ethernet (PPPoE)
• Keep-alive for PPP connections
Software
WAN connection types
• PPPoA
• PPPoE
• IPv6 PPPoE
• PPPoE Dual Stack
• IPoA
• Static IPv4 / Dynamic IPv4
• Static IPv6 / Dynamic IPv6
• Bridge
Network functions
• DHCP server/relay
• Stateful/Stateless mode for IPv6 address assignment, IPv6 prefix delegation
• DNS relay
• Dynamic DNS
• Static IP routing
• Static IPv6 routing
• IGMP Proxy
• IGMP snooping
• RIP
• Support of UPnP IGD
• Support of VLAN
• WAN ping respond
• Support of SIP ALG
• Support of RTSP
Firewall functions
• Network Address Translation (NAT)
• Stateful Packet Inspection (SPI)
• IP filter
• IPv6 filter
• MAC filter
• URL filter
• DMZ
• Prevention of ARP and DDoS attacks
• Virtual servers
• Built-in Yandex.DNS web content filtering service
VPN
• IPSec/PPTP/L2TP/PPPoE pass-through
QoS
• Interface grouping
• VLAN priority (802.1p)
Management
• Local and remote access to settings through TELNET/WEB (HTTP/HTTPS)
• Bilingual web-based interface for configuration and management (Russian/English)
• Firmware update via web-based interface
• Automatic notification on new firmware version
• Saving/restoring configuration to/from file
• Support of remote logging
• Automatic synchronization of system time with NTP server and manual time/date setup
• Ping utility
• Traceroute utility
• TR-069 client
Wireless Module Parameters
Standards
• IEEE 802.11b/g/n
Frequency range
• 2400 ~ 2483.5MHz
Wireless connection security
• WEP
• WPA/WPA2 (Personal/Enterprise)
• МАС filter
• WPS (PBC/PIN)
Advanced functions
• WMM (Wi-Fi QoS)
• Information on connected Wi-Fi clients
• Advanced settings
• Guest Wi-Fi / support of MBSSID
• Limitation of wireless network rate
• Periodic scan of channels, automatic switch to least loaded channel
• Autonegotiation of channel bandwidth in accordance with environment conditions (20/40 Coexistence)
Wireless connection rate
• IEEE 802.11b: 1, 2, 5.5, and 11Mbps
• IEEE 802.11g: 6, 9, 12, 18, 24, 36, 48, and 54Mbps
• IEEE 802.11n: from 6.5 to 150Mbps (from MCS0 to MCS7)
Transmitter output power
 
The maximum value of the transmitter output power depends upon the radio frequency regulations applied in your country
• 802.11b (typical at room temperature 25 °C)
18dBm
 
• 802.11g (typical at room temperature 25 °C)
15.5dBm
 
• 802.11n (typical at room temperature 25 °C)
14dBm
Receiver sensitivity
• 802.11b (typical at room temperature 25 °C)
-82dBm at 1Mbps
-80dBm at 2Mbps
-78dBm at 5.5Mbps
-76dBm at 11Mbps
 
• 802.11g (typical at room temperature 25 °C)
-85dBm at 6Mbps
-84dBm at 9Mbps
-82dBm at 12Mbps
-80dBm at 18Mbps
-77dBm at 24Mbps
-73dBm at 36Mbps
-69dBm at 48Mbps
-68dBm at 54Mbps
 
• 802.11n (typical at room temperature 25 °C)
HT20
-82dBm at MCS0
-79dBm at MCS1
-77dBm at MCS2
-74dBm at MCS3
-70dBm at MCS4
-66dBm at MCS5
-65dBm at MCS6
-64dBm at MCS7
HT40
-79dBm at MCS0
-76dBm at MCS1
-74dBm at MCS2
-71dBm at MCS3
-67dBm at MCS4
-63dBm at MCS5
-62dBm at MCS6
-61dBm at MCS7
Modulation schemes
• 802.11b: DQPSK, DBPSK, DSSS, and CCK
• 802.11g: BPSK, QPSK, 16QAM, 64QAM with OFDM
• 802.11n: BPSK, QPSK, 16QAM, 64QAM with OFDM
Physical Parameters
Dimensions (L x W x H)
• 174 x 119 x 32 mm (7 x 4.7 x 1.3 in)
Weight
• 197 g (0.43 lb)
Operating Environment
Power
• Output: 12V DC, 0.5A
Temperature
• Operating: from 0 to 40 °C
• Storage: from -20 to 70 °C
Humidity
• From 5% to 95% (non-condensing)

 


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DSL-2640U/RB/U2   Wireless ADSL2+ (Annex B) Router with Ethernet WAN Support

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DSL-2640U/RBU2
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