Owner's Manual

Protected Access Credential
Credentials distributed to a peer for future optimized network authentication. The PAC comprises, at most, three
components: a shared secret, an opaque element, and optionally, other information. The shared secret part contains
the preshared key between the peer and authentication server. The opaque part is provided to the peer and is
presented to the authentication server when the peer wants to obtain access to network resources. Finally, a PAC may
optionally include other information that may be useful to the client.
Protected Extensible Authentication Protocol (PEAP)
A version of Extensible Authentication Protocol (EAP). EAP ensures mutual authentication between a wireless client
and a server that resides at the network operations center.
provisioning
Providing a peer with a trust anchor, shared secret, or other appropriate information necessary for establishing a
security association.
public key infrastructure (PKI)
In cryptography, a public key infrastructure is an arrangement that provides for third-party vetting of, and vouching
for, user identities. It also allows binding of public keys to users. This is usually carried by software at a central
location together with other coordinated software at distributed locations. The public keys are typically in certificates.
quadrature amplitude modulation (QAM)
A modulation technique that uses variations in signal amplitude and phase to represent data-encoded symbols as a
number of states.
Quality of Service (QoS)
Refers to the capability of a network to provide better service to selected network traffic over various technologies.
See
IEEE 802.11e.
RF
radio frequency
radio stream
A value that represents a spatial stream (X) and antenna (Y) configuration for an IEEE 802.11n network connection.
For example, a radio stream value of 3 × 3 represents 3 spatial streams using 3 antennas.
RADIUS
Remote Access Dial-In User Service
residential gateway
A stand-alone wireless hub that allows any computer that has a wireless network adapter to communicate with
another computer and to connect to the Internet. A residential gateway is also referred to as an wireless router/AP.
roaming
A feature of the DW WLAN Card that enables wireless clients to move through a facility while maintaining an unbroken
connection to the wireless network.
root certificate
Internet Explorer divides certification authorities (CAs) into two categories, root certification authorities and
intermediate certification authorities. Root certificates are self-signed, meaning that the subject of the certificate is
also the signer of the certificate. Root CAs have the ability to assign certificates for intermediate CAs. An intermediate
CA has the ability to issue server certificates, personal certificates, publisher certificates, or certificates for other
intermediate CAs.
RTS threshold
The number of frames in the data packet at or above which an RTS/CTS (request to send/clear to send) handshake is
turned on before the packet is sent. The default value is 2347.
scanning
An active process in which the DW WLAN Card sends Probe-Request frames on all channels of the ISM frequency range