NetComm NCT240 User Manual

Page 37

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NetComm NCT240 Installation Guide Release 1.0

MPOE (Minimum or Main Point of Entry)

The location in a building where cables from the telephone service provider are terminated.

Network Diameter

Wire distance between two end stations in the same collision domain.

Private Branch Exchange (PBX)

A telephone exchange local to a particular organization who use, rather than provide,

telephone services.


Plain Old Telephone Service.

Redundant Power Unit (RPU)

A backup power supply that automatically takes over in case the primary power supply should


RJ-45 Connector

A connector for twisted-pair wiring.


A filter to separate DSL signals from POTS signals to prevent mutual interference.

Switched Ports

Ports that are on separate collision domains or LAN segments.

Transmission Control Protocol/Internet Protocol (TCP/IP)

Protocol suite that includes TCP as the primary transport protocol, and IP as the network

layer protocol.


Unshielded twisted-pair cable.


asymmetric data rate Digital Subscriber Line: A family of digital telecommunications

protocols designed to allow high speed data communication at data rates deliver data rates

up to 25 Mbps downstream and 1 Mbps upstream with corresponding maximum reach 18K feet

of 24 gauge twisted pair cable over the existing copper telephone lines between end-users

and telephone companies.

Virtual LAN (VLAN)

A Virtual LAN is a collection of network nodes that share the same collision domain regardless

of their physical location or connection point in the network. A VLAN serves as a logical

workgroup with no physical barriers, allowing users to share information and resources as

though located on the same LAN.