D-Link DSL-2640U user manual

Models: DSL-2640U

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Channel802.11b and 802.11g use channels to limit interference from other devices. If you are experiencing interference with another 2.4Ghz device such as a baby monitor, security alarm, or cordless phone, then change the channel on your router.

54gTM Ratethe wireless link rate at which information will be received and transmitted on your wireless network.

Multicast Ratethe rate at which a message is sent to a specified group of recipients.

Basic Ratethe set of data transfer rates that all the stations will be capable of using to receive frames from a wireless medium.

Fragmentation Thresholdused to fragment packets which help improve performance in the presence of radio frequency (RF) interference.

RTS Threshold (Request to Send Threshold)determines the packet size of a transmission through the use of the router to help control traffic flow.

DTIM Intervalsets the Wake-up interval for clients in power-saving mode.

Beacon Intervala packet of information that is sent from a connected device to all other devices where it announces its availability and readiness. A beacon interval is a period of time (sent with the beacon) before sending the beacon again. The beacon interval may be adjusted in milliseconds (ms).

Xpress Technology—a technology that utilizes standards based on framebursting to achieve higher throughput. With Xpress Technology enabled, aggregate throughput (the sum of the individual throughput speeds of each client on the network) can improve by up to 25% in 802.11g only networks and up to 75% in mixed networks comprised of 802.11g and 802.11b device.

54g Mode— 54g is a Broadcom Wi-Fi technology.

54g Protectionthe 802.11g standards provide a protection method so 802.11g and 802.11b devices can co-exist in the same network without “speaking” at the same time. Do not disable 54g Protection if there is a possibility that a 802.11b device may need to use your wireless network. In Auto Mode, the wireless device will use RTS/CTS (Request to Send / Clear to Send) to improve 802.11g performance in mixed 802.11g/802.11b networks. Turn protection off to maximize 802.11g throughput under most conditions.

Preamble Typethis is the length of the CRC (Cyclic Redundancy Check) block for communication between the router and wireless clients. High network traffic areas should select Short preamble type.

Transmit Powerthis is the percentage of power that should be transmitted from your wireless router. Select from 20%, 40%, 60%, 80%, and 100%.

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D-Link DSL-2640U user manual