D-Link DSL-2640U User Manual

DSL-2640U Wireless ADSL2+ Router with Ethernet WAN Support
User Manual
Configuring via Web-based Interface
In some cases NTP servers addresses are provided by your ISP. In this case, you need to move the
Get NTP server addresses using DHCP switch in the NTP Servers section to the right and
click the APPLY button. Contact your ISP to clarify if this setting needs to be enabled. If the Get
NTP server addresses using DHCP switch is moved to the right, the NTP Servers section is
not displayed.
To allow connected devices to use the IP address of the router in the local subnet as a time server,
move the Run as a server for the local network switch to the right and click the APPLY
button.
!
When the router is powered off or rebooted, the system time is reset to the default value.
If you have set automatic synchronization for the system time, the internal clock of the
device will be configured after connecting to the Inter net. If you have set the system time
manually, you need to set the time and date again (see above).
Page 166 of 174

D-Link DSL-2640U Specifications

Power

input voltage	100V-240V
input current	0.6A
input frequency	50 Hz - 60 Hz
output voltage	12V
output current	1A

Data Transfer Rates

G.dmt full rate downstream	up to 8 Mbps
G.dmt full rate upstream	up to 1 Mbps
G.lite ADSL downstream	up to 1.5 Mbps
G.lite ADSL upstream	up to 512 Kbps
G.dmt.bis full rate downstream	up to 12 Mbps
G.dmt.bis full rate upstream	up to 1 Mbps
ADSL2+ full rate downstream	up to 24 Mbps
ADSL2+ full rate upstream	up to 1 Mbps

Wireless Transfer Rates

IEEE 802.11b transfer rates	11, 5.5, 2, and 1 Mbps
IEEE 802.11g transfer rates	6, 9, 12, 18, 24, 36, 48, 54 Mbps

Media Interface

ADSL interface connector	RJ-11 connector for connection to 24/26 AWG twisted pair telephone line
LAN interface ports	four RJ-45 ports for 10/100BASE-T Ethernet connection