Fluke Network Tester user manual Remote Collision, Repeater, Router or Gateway, RJ-45 Connector

Appendices C

Remote Collision

A collision that occurs on the other side of a repeater. Since a 10BASE-T Hub is a multi-port repeater with a "segment" dedicated to each station, 10BASE-T collisions are remote collisions.

Repeater

A repeater is a layer-1 device that regenerates and retimes frames.

Router or Gateway

A router is a device that connects subnets together. Any packets destined for a device on a different subnet are given the subnet’s router. Routing between subnets can involve multiple routers. A user’s machine must be configured to know the IP address of the router for its subnet in order to communicate with machines on other subnets. Mis-identified gateways are a common problem for manually configured IP settings.

RJ-45 Connector

A modular connector used for UTP wiring. The RJ-45 connector has eight conductors to accommodate four pairs of wires, and it has become the dominant connector used in Ethernet and Token Ring UTP installations.

Router

A router is a network-layer device that connects networks using like network-layer protocols. Routers can span different network topologies. For example, a router can interconnect two IP subnets. For a router to pass traffic, unlike a bridge, it must be configured for the desired protocol. Routers are more difficult to configure but offer greater security.

RTP (Real-time Transport Protocol)

The protocol used for actual Voice data transmission.

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