Cisco BPX-BXM-155-8DX Installation And Configuration Manual page 603

B
A protocol for T3 lines that converts a channel word with three consecutive zeros into a code which at
B3ZS (Bipolar with
Three Zero the far end is converted back to three zeros.
Suppression)
A T1 line protocol that converts a channel word with eight consecutive zeros into a code which, at the
B8ZS (Bipolar with
Eight Zero far end, is converted back to eight zeros. Allows 64 Kbps clear channel operation while assuring the
Suppression)
ones density required on the T1 line.
A software feature that allows circuits to automatically become active (or "upped") at a specified time
bandwidth
reservation and date and downed at some later time and date. For circuits that do not need to be available 100% of
the time.
In ISDN, a full-duplex, 64-kbps channel used to send user data. Also known as the bearer channel.
B channel
Compare with D channel.
The switch control card in the BPX is the Broadband Control Card, with a 68040 processor..
BCC
E1 interface card used on IGX switches.
BC-E1 (Backcard
E1)
E3 interface card used on IGX switches.
BC-E3 (Backcard
E3)
J1 interface card used on IGX switches.
BC-J1 (Backcard J1)
Subrate interface card used onIGX switches.
BC-SR (Backcard
Subrate)
T1 interface card used on IGX switches.
BC-T1 (Backcard
T1)
T3 interface card used on IGX switches.
BC-T3 (Backcard
T3)
Y1 interface card used on IGX switches.
BC-Y1 (Backcard
Y1)
The address of the slot.port.channel for which the Bframe is destined. This address is part of the Bframe
BDA (Bframe
Destination header and is only used across the switch fabric locally in the node.
Address)
The BPX frame is the 64-byte format for messages used to encapsulate ATM cells which are sent across
Bframe
the switch fabric.
Presence or absence of extra "1" bits on a T1 transmission facility caused by interference or a failing
bipolar violations
line repeater. These extra or missing bits interrupts one of the rules for bipolar pairs of a digital
transmission line.
BISDN (broadband ITU-T communication standards designed to handle high-bandwidth applications. Compare with
ISDN.
ISDN)
The front card used to network BPX switches together and to connect to AXIS and IGX nodes
BNI (BPX Network
configured as shelves. Supports T-3, E-3, and OC3 trunks carrying ATM cells.
Interface Card)
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Cisco BPX 8600 Series Installation and Configuration
Glossary
3