D-Link DSL-2640U User Manual

DSL-2640U Wireless ADSL2+ Router with Ethernet WAN Support
User Manual
Configuring via Web-based Interface
Remote Update
!
Attention! Do not turn off the router before the firmware update is completed. This may
cause the device breakdown.
To update the firmware of the router remotely, follow the next steps:
1. On the System / Firmware Update page, in the Remote Update section, click the
CHECK FOR UPDATES button to check if a newer firmware version exists.
2. Click the UPDATE FIRMWARE button (the button is displayed if a newer version of the
firmware is available).
3. Wait until the router is rebooted (about one and a half or two minutes).
4. Log into the web-based interface using the login (admin) and the current password.
If after updating the firmware the router doesn't work correctly, please restore the factory default
settings. To do this, click the Factory button on the System / Configuration page. Wait until the
router is rebooted.
Page 157 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