Paradyne Hotwire 8774 User Manual

Also see for Hotwire 8774: Installation instructions User guide

Contents

8774-A2-GB20-40 February 2001 GL-1Glossary511 A random bit test 511 bytes in length.AIS Alarm Indication Signal. A signal transmitted downstream instead of the normal signal topreserve transmission continuity and to indicate to the rest of the network that a fault exists.Also called a Blue Alarm.AMI Alternate Mark Inversion. A line coding technique used to accommodate the ones densityrequirements of E1 or T1 lines.ATI Asynchronous Terminal Interface. A menu-driven, VT100-compatible system for configuringand managing the termination unit.BPV Bipolar Violation. In a bipolar signal, a one (mark, pulse) which has the same polarity as itspredecessor.bridged tap Any part of the local loop that is not in the direct talking path between the CO and theservice user.CAP Carrierless Amplitude and Phase Modulation. A transmission technology for implementing aDSL. Transmit and receive signals are modulated into two wide-frequency bands usingpassband modulation techniques.CD Carrier Detect. The received line signal detector. V.24 circuit 109.CO Central Office/Central Site. The PSTN facility that houses one or more switches servinglocal telephone subscribers.COM port Communications port. A computer's serial communications port used to transmit to andreceive data from a modem. The modem connects directly to this port.CP Customer Premises.CPE Customer Premises Equipment. Terminal equipment on the service user's side of thetelecommunications network interface.CPU Central Processing Unit. The main or only computing device in a data processing system.CRC Cyclic Redundancy Check. A mathematical method of confirming the integrity of receiveddigital data.CTS Clear To Send. A signal indicating that the device is ready for the DTE to transmit data.Usually occurs in response to Request To Send (RTS).CV Code Violation. Detected when using HDB3 coding format, this is equivalent to a BPV whenusing AMI coding.DCE Data Communications Equipment. The equipment that provides the functions required toestablish, maintain, and end a connection. It also provides the signal conversion required forcommunication between the DTE and the network.DCLB Data Channel LoopBack. Loops the data received from the network interface, for all DS0channels allocated to the selected port, back to the network.DSL Digital Subscriber Line. The non-loaded, local-loop copper connection between thecustomer and the first node within the network.DSLAM Digital Subscriber Line Access Multiplexer. A platform for DSL modems that provideshigh-speed data transmission over traditional twisted-pair wiring.