ZyXEL Communications Corporation OX253P Manuel D’Utilisation
Chapter 16 The Status Screen
OX253P User’s Guide
171
16.3 Technical Reference
The following section contains additional technical information about the OX253P
features described in this chapter.
features described in this chapter.
Modulation
A modulation technique is a method used to encode digital or analog information
onto an analog carrier signal so it can be transmitted. A device modulates digital
data onto an radio signal to send over the wireless network. The receiving device
demodulates the radio signals back to digital data. The specific frequency at which
the information is modulated on the radio signal is called the carrier.
onto an analog carrier signal so it can be transmitted. A device modulates digital
data onto an radio signal to send over the wireless network. The receiving device
demodulates the radio signals back to digital data. The specific frequency at which
the information is modulated on the radio signal is called the carrier.
QPSK
The Quadrature Phase-Shift Keying digital modulation technique is used in WiMAX
networks to transmit downlink traffic using a maximum data rate of 9.5 Mbps.
networks to transmit downlink traffic using a maximum data rate of 9.5 Mbps.
16QAM
The Quadrature Amplitude Modulation (QAM) digital modulation technique
modulates (changes) the amplitude of two carrier waves. WiMAX networks use
16QAM to transmit downlink traffic using a data rate of 18 Mbps.
modulates (changes) the amplitude of two carrier waves. WiMAX networks use
16QAM to transmit downlink traffic using a data rate of 18 Mbps.
TTLS Inner EAP
This field displays the type of secondary authentication method.
Once a secure EAP-TTLS connection is established, the inner EAP is
Once a secure EAP-TTLS connection is established, the inner EAP is
the protocol used to exchange security information between the
mobile station, the base station and the AAA server to
authenticate the mobile station. See the WiMAX security appendix
for more details.
mobile station, the base station and the AAA server to
authenticate the mobile station. See the WiMAX security appendix
for more details.
The OX253P supports the following inner authentication types:
• CHAP (Challenge Handshake Authentication Protocol)
• MSCHAP (Microsoft CHAP)
• MSCHAPV2 (Microsoft CHAP version 2)
• PAP (Password Authentication Protocol)
• MSCHAP (Microsoft CHAP)
• MSCHAPV2 (Microsoft CHAP version 2)
• PAP (Password Authentication Protocol)
Certificate
This is the security certificate the OX253P uses to authenticate the
AAA server, if one is available.
AAA server, if one is available.
Table 81 The WiMAX Profile Screen (continued)
LABEL
DESCRIPTION