Garmin HN294DP/DI manual Glossary, Access Point, Adsl, Asynchronous

Models: HN294DP/DI

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Important Information

Glossary

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Access Point

An Access Point (AP) is a hardware device or a computer's software that acts as a communication hub for users of a wireless device to connect to a wireless LAN (WLAN). The HN294dp has an integrated WLAN access point which complies to the 802.11b standard.

ADSL

Short for Asymmetric Digital Subscriber Line. A variation of the DSL technologies that is most familiar to home and small business users. ADSL is called "asymmetric" because most of its two-way or duplex bandwidth is devoted to the downstream direction, sending data to the user. Only a small portion of bandwidth is available for upstream or user-interaction messages.

ARP

Short for Address Resolution Protocol, a TCP/IP protocol used to convert an IP address into a physical address, such as an Ethernet address. A host wishing to obtain a physical address broadcasts an ARP request onto the TCP/IP network. The host on the network that has the IP address in the request then replies with its physical hardware address. There is also Reverse ARP (RARP) which can be used by a host to discover its IP address. In this case, the host broadcasts its physical address and a RARP server replies with the host's IP address.

Asynchronous

Occuring at different times. For example, electronic mail is asynchronous communication because it does not require the sender and receiver to be connected at the same time.

ATM

Short for Asynchronous Transfer Mode, a network technology based on transferring data in cells or packets of a fixed size. The cell used with ATM is relatively small compared to units used with older technologies. The small, constant cell size allows ATM equipment to transmit video, audio, and computer data over the same network, and assure that no single type of data hogs the line.

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EN/LZT 108 6377 R4 - September 2003

Page 94
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Garmin HN294DP/DI manual Glossary, Access Point, Adsl, Asynchronous