Avaya MERLIN MAGIX Maintenance And Troubleshooting Manual page 271

Maintenance and Troubleshooting
Automatic-Start Tie Trunk
Tie Trunk
destination without a start signal, as soon as the trunk is seized; the destination is
specified during programming. Also called "Automatic Ringdown" or "Auto-In" Tie
Trunk.
B
B8ZS
Bipolar 8 Zero
zeros in a unique binary sequence to detect bipolar violations.
Backup
Procedure for saving a copy of system programming onto a floppy disk or
Memory
Bandwidth
Difference, expressed in hertz, between the highest and lowest frequencies in a
range that determines channel capacity.
Barrier Code
Password used to limit access to the
Private
types of remote access.
Basic Carrier
Hardware that holds and connects the
and up to five other modules in the system. See also
Baud Rate
Strictly speaking, a measurement of transmission speed equal to the number of
signal level changes per second. In practice, often used synonymously with
Rate
B-Channels
Bearer-Channel. 64- or 56-kbps channel that carries a variety of digital
information streams, such as voice at 64 kbps, data at up to 64 kbps, wideband
voice encoded at 64 kbps, and voice at less than 64 kbps, alone or combined.
Basic Rate Interface
See BRI.
Bearer-Channel
See B-Channels.
GL-4
on which incoming calls are routed to an operator or other designated
Substitution. Line-coding format that encodes a string of eight
Card. See also Restore.
Network, it is especially important that barrier codes be required for all
and bps.
Remote Access feature of the system. In a
Processor Module, Power Supply
Expansion
Module,
Carrier.
Bit