Paradyne Hotwire 7984 GL-2, Dslam, Dtlb, Ethernet, Etsi, factory defaults, Febe, frame relay

Models: Hotwire 7984

1 122
Download 122 pages 48.4 Kb
Page 116
Image 116
DSLAM

Glossary

DSLAM

Digital Subscriber Line Access Multiplexer. A platform for DSL modems that provides

 

high-speed data transmission over traditional twisted-pair wiring.

DSR

Data Set Ready. A signal from the modem to the DTE that indicates the modem is turned

 

ON and connected to the DTE.

DTE

Data Terminal Equipment. The equipment, such as a computer or terminal, that provides

 

data in the form of digital signals for transmission.

DTLB

Data Terminal LoopBack. Loopback mode that loops the data for a particular synchronous

 

data port back to the port just before it is combined with the rest of the T1 data stream.

DTR

Data Terminal Ready. A signal from the DTE to the modem, sent via Pin 20 of the

 

EIA-232 interface (V.24 circuit 108/1, /2), that indicates the DTE is turned ON and

 

connected to the modem.

E1

A wideband digital interface operating at 2.048 Mbps, defined by ITU recommendations

 

G.703 and G.704. It is used primarily outside North America.

EER

Excessive Error Rate. An error rate that is greater than the threshold that has been

 

configured in the device.

EOC

Embedded Operations Channel. An in-band channel between DSL devices, used for

 

8 kbps management data.

ES

Errored Seconds. A second with one or more error events (one or more CRC error events

 

or OOFs).

ESF

Extended SuperFrame. The T1 transmission standard that specifies 24 frames as an

 

extended superframe to be used for frame synchronization and to locate signaling bits.

Ethernet

A type of network that supports high-speed communication among systems. It is a widely

 

implemented standard for LANs. All hosts are connected to a coaxial cable where they

 

contend for network access using a Carrier Sense, Multiple Access with Collision

 

Detection (CSMA/CD) paradigm.

ETSI

European Telecommunications Standardization Institute. An organization that produces

 

technical standards in the area of telecommunications.

factory defaults

A predetermined set of configuration options containing the optimum settings for operation

 

on asynchronous dial networks.

FAS

Frame Alignment Signal. A loss of frame (LOF) error detection.

FAW

Frame Alignment Word. A loss of synchronization error detection.

FCC

Federal Communications Commission. The Board of Commissioners that regulates all

 

electrical communications that originate in the United States.

FEBE

Far-End Block Error. Block errors reported by remote equipment.

frame relay

A high-speed connection-oriented packet switching WAN protocol using variable-length

 

frames.

FTP

File Transfer Protocol. A TCP/IP standard protocol that allows a user on one host to

 

access and transfer files to and from another host over a network, provided that the client

 

supplies a login identifier and password to the server.

G.703

An ITU recommendation for the physical and logical characteristics of hierarchical digital

 

devices.

G.704

An ITU recommendation for synchronous frame structures.

HDB3

High Density Bipolar Three Zeros Substitution. A line coding technique used to

 

accommodate the ones density requirements of E1 lines.

GL-2

February 1999

7984-A2-GB20-10

Page 116
Image 116
Paradyne Hotwire 7984 manual GL-2, Dslam, Dtlb, Ethernet, Etsi, factory defaults, Febe, frame relay, G.703, G.704, HDB3