Adtran NetVanta 3120 4-Port Security Router - 1 x 10/100Base-TX WAN, 4 x 10/1...
Product MPN
Interfaces
LAN Interfaces
10/100 Base-T
When purchasing as router for use with a wide-area, keep in mind that wide-area networking spans many different devices and services. Interface considerations will vary depending upon the type of service and the kinds and amount of traffic that will be sent over it.
WAN Interfaces
1 x 10/100 Base-T, 1 x RJ-45 for ADSL
Standards and Protocols
Protocols are agreed upon formats for translating data between devices. Protocols determine many different aspects of the data including, error checking, compression types as well as indications of delivery and retrieval by devices. There are a variety of standard protocols from which programmers can choose. Each with its particular advantages and disadvantages; meaning that, some are simpler than others, some are more reliable, and some are faster. For the user, it is important that the device have the correct protocols in order to be able to communicate with other computers.
Protocols
Frame Relay, HDLC, PPP, PPPoE, IPSec
Routing Protocols
OSPF, RIP Version 1, RIP Version 2, BGP, IGMPv2
Wireless
WLAN Standards
IEEE 802.11d, IEEE 802.1 Q
There are many standards of modulation. The following are some of the most commonly used types. DSSS DSSS (Direct-Sequence Spread Spectrum) is a transmission technology that combines the data signal with a higher data rate bit sequence called a chipping code. This improves noise resistance and data integrity. OFDM OFDM (Orthogonal Frequency Division Multiplexing) transmits digital data over a radio wave by splitting a radio signal into multiple sub-signals. These are then transmitted simultaneously at different frequencies. This modulation technique reduces the amount of crosstalk in signal transmissions. CCK CCK (Complementary Code Keying) uses a set of 64 eight-bit code words to encode data for 5.5 and 11Mbps data rates in the 2.4GHz band of 802.11b standard. The code words have unique mathematical properties. This allows them to be correctly distinguished from one another by a receiver even in the presence of substantial noise and interference.
All wireless access points should offer some sort of security against completely open access of the data you are transmitting. These are the security standards that this device adheres to.
Security
AES, 802.1x, DES
Miscellaneous
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netvanta Adtran NetVanta 3120 4-Port Security Router - 1 x 10/100Base-TX WAN, 4 x 10/100Base-TX LAN - Security Router - 1700601G2
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Adtran NetVanta 3120 4-Port Security Router - 1 x 10/100Base-TX WAN, 4 x 10/100Base-TX LAN - Security Router - 1700601G2
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