Multi-Tech Systems MTASR1-100 manual Glossary

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Glossary

M

Management Information Base (MIB): A database of network management information used by the Common Management Information Protocol (CMIP) and the Simple Network Management Protocol (SNMP).

Megacom: An AT&T service with a normal WATS line (typically T1) between the customer premise and the AT&T serving class 4 CO are the customer’s responibility.

MegaLink: BellSouth’s leased T1 service.

Message: Associated with such terms as packet, frame, and segment. 1. In information theory, an ordered series of characters intended to convey information. 2. An assembly of characters and sometimes control codes that is transferred as an entry from an originator to one or more recipients.

Modem: A communications device that enables a computer to transmit information over a phone line. It converts the computer’s digital signals into analog signals to send over a phone line and converts them back to digital signals at the receiving end. Modems can be internal and fit into an expansion slot, or external and connect to a serial port.

Multiplexer (Mux): 1. A device that takes several input signals and combines them into a single output signal in such a manner that each of the input signals can be recovered. 2. A device capable of interleaving the events of two or more activities or capable of distributing the events of an interleaved sequence to the respective activities. 3. Putting multiple signals on a single channel.

Multiprotocol: A device that can interoperate with devices utilizing different network protocols.

RouteFinder: A secure gateway that provides multiple LAN users with high performance Internet access by functioning as a TCP/IP RouteFinder that resides on the outer edge of a firewall.

Multithreading: The ability of a software system to be able to handle more than one transaction concurrently. This is contrasted to the case where a single transaction is accepted and completely processed befor the next transaction processing is started.

N

Nailed Connection: A permanent or dedicated circuit of a previously switched circuit or circuits.

Nailed-up Circuit: A semi-permanent circuit established through a circuit-switching facility for point-to-point connectivity.

NAK (Negative Acknowledgment): Communications code used to indicate that a message was not properly received, or that a terminal does not wish to transmit. Contrast with ACK.

Network: A group of computers connected by cables or other means and using software that enables them to share equipment, such as printers and disk drives to exchange information.

Node: Any point within a network which has been assigned an address.

O

Object-Oriented:A method for structuring programs as hierarchically organized classes describing the data and operations of objects that may interact with other objects.

Office Channel Unit - Data Port (OCU-DP):The CO channel bank used as the interface between the customer’s DSU and the channel bank.

Off-hook:The condition of a device which has accessed a phone line (with or without using the line). In modem use, this is equivalent to a phone handset being picked up. Dialing and transmission are allowed, but incoming calls are not answered. Contrast “on-hook”.

Off Premise Extension (OPX): An extension or phone that terminates in a location other than that of the PBX. Commonly used to provide a corporate member with an extension of the PBX at home.

Ones Density: the measure of the number of logical 1s on a T1 line compared to a given total number of bits on that line; used for timing information in data recovery in AMI and B8ZS.

On-Hook:The condition of a device which has not accessed a phone line. In modem use, this is equivalent to a telephone handset that has not been picked up. In other words, it can receive an incoming call. Contrast “off-hook”.

Open Shortest Path First (OSPF): A hierarchical Interior Gateway Protocol (IGP) routing algorithm for IP that is a proposed standard for the Internet. OSPF incorporates least-cost routing, equal-cost routing, and load balancing.

Outage: The measure of the time during which a circuit is not available for use due to service interrupt. Outage is the complement of circuit “availability” (100% minus % available = % outage).

Out-of-band:Signaling that is separated from the channel carrying the information (e.g., the voice/data/video signal is separate from the carrier signal). Dialing and various other “supervisory” signals are included in the signaling element. Contrast “In-band” signaling.

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Contents User Guide Record of Revisions User GuideRevision Description PatentsContents Glossary of Terms Index Introduction and Description Preview of this Guide IntroductionService, Warranty and Tech Support Remote Configuration and ManagementRelated Documentation Introduction and DescriptionWAN Link Front PanelBack Panel Shunt Positions ShuntsCommand Port SpecificationsEthernet Port WAN LinkMTASR1-100 Installation Unpacking UnpackingChanging Shunt Position InstallationBack Panel Connections Cabling your RouteFinderSoftware Loading and Configuration Loading your Software Do you want to download default setup? dialog is displayed Software Loading and ConfigurationNovell IPX Protocol Default Setup dialog box is displayed Software Loading and Configuration RouteFinder MTASR1-100 User Guide Setting Up Your Remote User Database Call Back Security Enabled User PasswordCall Back Delay Call BackRouteFinder Software Before You Begin Download Default SetupWAN Device Configuration Configuration Port SetupUninstall Download FirmwareIP Port Setup Router ConfigurationRouteFinder Software MTASR1-100 Open Shortest Path First Ospf IPX Setup RouteFinder Software Spanning Tree Setup WAN Port Setup Point-to-Point Setup Frame Relay Setup Frame Relay Dlci Diagnostics Applications SetupScripting Remote Configuration and Management Modem-Based Remote Configuration Procedure Remote Configuration and Management Windows Sockets Compliant TCP/IP Stack LAN-Based Remote ConfigurationRemote Configuration and Management Telnet Remote ManagementRouter Management WEB Browser Management Service, Warranty and Tech Support On-line Warranty Registration Limited WarrantyTech Support Service, Warranty and Tech SupportRecording RouteFinder Information Service To log on to the Multi-Tech BBS Multi-Tech BBSTo Download a file If you know the file nameAbout the Internet About the Multi-Tech Fax-Back ServiceAppendixes 10BASE-T RJ-45 10BASE 2 BNC LAN CablesAppendixes WAN CablesRS232C/V.24 * Link Cable Link CableScript Language Grammar Appendix B Script LanguageThere are two types of conditional constructs Two basic types of variables are supportedThere are two types of iterative constructs Operator PrecedenceExample Script Appendix C Regulatory Information Class a Statement EMC and Safety Directive ComplianceFCC Part Industry CanadaTCP/IP Appendix D TCP/IPAppendixes Internet Protocol IP Glossary of Terms MTASR1-100 Glossary MTASR1-100 Glossary MTASR1-100 Glossary MTASR1-100 Glossary MTASR1-100 Glossary Subscriber Loop See Local loop Glossary MTASR1-100 Index IndexSoftware