D. Glossary
Access Point — An internetworking device that seamlessly connects wired and wireless networks together.
Bandwidth — The size (in Hertz) of the frequency range that a signal transmission occupies. Typical narrow band signals oc- cupy a 25 KHz bandwidth. The RangeLAN2 signal occupies a 1 MHz bandwidth.
Channel — In RangeLAN2 networks, the channel refers to the frequency hopping sequence the card follows.
CSMA/CA — (Carrier Sense Multiple Access/Collision Avoid- ance) — CSMA is a protocol in which each node senses whether or not a channel is in use before attempting to transmit informa- tion. CA is an optimization by which channel time is reserved to avoid collisions.
DCE — (Data Communication Equipment) — A device, such as a modem, which connects to a DTE with a serial cable, that allows a DTE to send and receive data with remote locations.
DTE — (Data Terminal Equipment) — A device, such as a computer or dumb terminal, which connects to a DCE from its serial port in order to send and receive data with remote locations.
Download Image — A software file that is used to upgrade the software code running on the Ethernet Adapter.
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