Compaq Netelligent 2524 User Manual page 99

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G-10 Glossary
Repeater Hop
The action of a data transmission passing through a repeater in a
communications circuit. IEEE 802.3 standards specify the number of
repeater hops allowed for various types of repeaters. For example, Class
II repeaters allow up to two repeater hops per segment.
RJ-45
An 8-wire modular connector used for RJ-45 Ethernet and some
telephones.
RMON
Remote Monitor. RMON allows remote data collection and analysis.
Router
A program that connects two networks together. Routers are much more
intelligent than bridges and should be used when packets need to be
routed according to their higher level protocols. Unlike bridges, routers
can maintain several alternative paths and can choose the best path based
on traffic conditions.
RS-232
The EIA (Electronics Industries Association) recommended standard
232 defines a standard way of transferring serial information by wire
using single-ended line drivers and receivers. RS-232 lines generally
include transmit, receive, ground and various control lines.
RS-485
The EIA (Electronics Industries Association) Recommended Standard
485 defines a standard way of transferring serial information by wire
using differential line drivers and receivers.