GLOSSARY
Async-Sync PPP Conversion
Asynchronous to synchronous PPP conversion. The 3C882
ISDN modem converts asynchronous PPP into synchronous
(HDLC-based) PPP that can be transported in ISDN
B channels to communications servers that have integrated
ISDN BRI, PRI, or T1 access lines.
AT commands
ATtention Codes. AT commands are used to configure and
operate the 3C882 ISDN modem. These commands can be
sent either automatically or manually through your
communications software.
Autobaud Automatic baud rate detection. Autobaud automatically
detects the baud rate of your computer’s serial port.
B channel Bearer channel. In ISDN communications, a B channel
transmits data and voice traffic at a rate of up to 64 Kbps.
BRI Basic Rate Interface. A BRI line is one of two access methods
to the ISDN. Each BRI consists of two 64 Kbps B channels
and one 16 Kbps D channel for each ISDN line.
CHAP Challenge Handshake Authentication Protocol. CHAP is one
of two PPP authentication protocols; PAP is the other. An
authentication protocol requests information to verify a valid
user. CHAP is a stronger authentication method because it
uses encryption and may repeatedly request verification of
the identity of the user any time after link establishment.