ZyXEL g-2000 plusv2 Guía Del Usuario

ZyXEL G-2000 Plus v2 User’s Guide

Chapter 1 Getting to Know Your Device

39

The IEEE 802.11b data rate and corresponding modulation techniques are shown in the table 
below. The modulation technique defines how bits are encoded onto radio waves.

The ZyXEL device, complies with the IEEE 802.11g wireless standard and is also fully 
compatible with the IEEE 802.11b standard. This means an IEEE 802.11b radio card can 
interface directly with an IEEE 802.11g device (and vice versa) at 11 Mbps or lower 
depending on range.The IEEE 802.11g has several intermediate rate steps between the 
maximum and minimum data rates. The IEEE 802.11g data rate and modulation are as 
follows:.

Note: The ZyXEL device may be prone to RF (Radio Frequency) interference from 

other 2.4 GHz devices such as microwave ovens, wireless phones, Bluetooth 
enabled devices, and other wireless LANs.

(R)STP detects and breaks network loops and provides backup links between switches, 
bridges or routers. It allows a bridge to interact with other (R)STP -compliant bridges in your 
network to ensure that only one path exists between any two stations on the network.

The ZyXEL device can use certificates (also called digital IDs) to authenticate users. 
Certificates are based on public-private key pairs. Certificates provide a way to exchange 
public keys for use in authentication.

You may set a maximum number of wireless stations that may connect to the ZyXEL device. 
This may be necessary if for example, there is interference or difficulty with channel 
assignment due to a high density of APs within a coverage area. 

Table 1   IEEE 802.11b

1

DBPSK (Differential Binary Phase Shift Keyed)

2

DQPSK (Differential Quadrature Phase Shift Keying

)

5.5 / 11

CCK (Complementary Code Keying)

Table 2   IEEE 802.11g

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OFDM (Orthogonal Frequency Division Multiplexing)