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D-link DIR-855 (1463531) Wireless Router


D-link DIR-855 (1463531) Wireless Router

D-link DIR-855 (1463531) Wireless Router - Pre-802.11n, Functionalities: VPN Pass-Thru, Firewall, Voice over IP (VoIP), WAN: 1 x 10/100/1000 Base-T, LAN: 10/100/1000 Base-T, Firewall: SPI (Stateful Packet Inspection), NAT, DIR-855

More details


167,09 €

72103234



MPN

MPN: 1463531

Key Features

Features: Sets the main function of routeur.VPN Pass-Thru
Firewall
Voice over IP (VoIP)
Connectivity: Wireless
Antenna type: Internal antennas are built into the device. They can not be changed or directed.
External antennas can be oriented in different directions. They are usually used to increase the range of the device.
The detachable antennas are screwed to the device. They can easily be replaced by models puissants.3 detachable antennas
WLAN Standards: IEEE 802.11n
Security: All access points are wireless to guarantee a certain level of security to protect access to data you transmit. These are safety standards that the device is conforme.WPA
WPA2

Interfaces

Integrated: Integrated Switch 4-port
Interfaces LAN: 10/100/1000 Base-T
WAN interfaces: When you buy a router for a long-distance network, remember that this type of network covers a large number of different devices and services. You must therefore choose the interface based on the type of service and the nature and amount of traffic that the network will transmettre.1 x 10/100/1000 Base-T
Additional Interfaces: 1 USB port

Standards and Protocols

LAN standards: IEEE 802.3 CSMA / CD or Ethernet
IEEE 802.3u 100 Mbps (Fast Ethernet)
IEEE 802.11a 5 Ghz 52 Mbps
IEEE 802.11b 2.4 Ghz 11 Mbps Wi-Fi
IEEE 802.11g
Protocols: The protocols are standard formats for converting data between devices. They determine many aspects of data: error checking, compression types and names of the procedures for sending and retrieving data from the devices. Programmers can choose from a wide variety of standard protocols, each with their advantages and disadvantages. Some are easier than others, some are more reliable and more faster. The key for the user that the device uses the correct protocol to communicate with other ordinateurs.PPTP
L2TP
VoIP
IPSec
Management Protocol: A network protocol is a set of rules, conventions and formal data structures that govern how computers exchange information over a network. Fruit of years of evolution and development, network protocols are defined by many standards organizations and vendors technologiques.HTTP

Firewall / VPN

Firewall Features: SPI (Stateful Packet Inspection)
NAT
VPN Protocols: IPSec
PPTP
L2TP

Wireless

Modulation: There are many standards of modulation. The most commonly used are:

DSSS
The standard DSSS (Direct-Sequence Spread Spectrum) is a transmission technology that combines the data signal to a sequence of data bits higher technique called "chipping." This ensures an increased resistance to noise and better data integrity.

OFDM
The standard OFDM (Orthogonal Frequency Division Multiplexing) is to transmit digital data by radio wave by dividing a radio signal into multiple sub-signals. These signals are then transmitted simultaneously at different frequencies. This modulation technique has the advantage of reducing the crosstalk noise.

CCK
CCK (Complementary Code Keying) uses a sequence of 64 code words 8 bits to encode data. This results in speeds of 5.5 and 11 Mb / s in the 2.4 GHz band of laDSSS

Dimension

Width: 11.7 cm
Depth: 19.3 cm
Height: 3 cm
Weight: 0.32 kg

Guarantee

Warranty: 1 year

Various

UPC: 790069314230
Product No.: 72103234
Release date: 2nd Quarter 2007
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