Cga), Ccitt, Chap – Verilink XEL XSP-100 SHARK IAP (9SA-USRS-9.0R1.02) Product Manual User Manual
Page 245

Chapter 10.Appendix A: Glossary
Chapter 10
SHARK™ IAD User's Guide
XEL P/N & Release: 9SA-USRS-9.0R1.02
Appendix: 10-3
B
LUE
A
LARM
See AIS.
BPS
Bits per second. A measure of data transmission speed.
BPV
Bipolar violation. The digital data format consists of pulses at opposite polarity or voltage. Two
consecutive pulses of the same polarity are considered a bipolar violation.
BRIDGE
Device that passes packets between two network segments according to the packets' destination
address.
BROADCAST
Message sent to all nodes on a network.
BROADCAST
ADDRESS
Special IP address reserved for simultaneous broadcast to all network nodes.
BUFFER
Storage area in a computer or other device's memory used to hold data until it can be forwarded.
- C -
CARRIER
Signal suitable for transmission of information.
C
ARRIER
G
ROUP
A
LARM
(CGA)
This is a condition caused by receiving an alarm indication on a T1 circuit. The alarms received
on the T1 will be in the form of a Local or RED alarm; a Remote or YELLOW alarm; or an AIS
signal. The Shark will maintain this condition until the received alarm signal is removed from
the T1 circuit.
CCITT
Comité Consultatif International Télégraphique et Téléphonique or Consutative Committee for
International Telegraph and Telephone. An international organization responsible for developing
telecommunication standards.
CD
Carrier Detect.
CELL
Unit of transmission in ATM consisting of a fixed frame that contains a 5-byte header and a 48-
byte payload.
CENTRAL OFFICE
Telephone company node that connects the users' local lines to the public switched telephone
network.
C
HANNEL
B
ANK
A device that fractions the 1.544-Mbps T1 line into 24 channels.
CHAP
Challenge-Handshake Authentication Protocol. Security protocol in PPP that prevents
unauthorized access to network services. See RFC 1334 for PAP specifications Compare PAP.
CLIENT
Network node that requests services from a server.