User`s manual

U.S. Robotics I-modem Command Reference
Glossary • Page G-1
Glossary
Note Cross-references in the following deÞnitions are blue underlined.
Symbols and Numerics
1B+D
In ISDN BRI, a common conÞguration of 1 B-channel and 1 D-channel.
16550 UART
The fastest type of UART that is currently available.
2B+D
In ISDN BRI, a common conÞguration of 2 B-channels and 1 D-channel.
5ESS
See AT&T 5ESS.