Lantronix XPress-DR XPress-DR / XPress-DR-IAP - User Guide - Page 144

Open System Interconnect OSI, Packet, Physical Address, Physical Layer, Point-to-Point, Port

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Glossary of Terms Open System Interconnect (OSI): See "ISO." Packet: A series of bits containing data and control information, including source and destination node addresses, formatted for transmission from one node to another. PAP: (Password Authentication Protocol) Authentication scheme for PPP links. A password can be specified for both devices on a remote link. Failure to authenticate will result in a dropped connection prior to start of data transmission. Physical Address: An address identifying a single node. Physical Layer: Layer 1, the bottom layer of the OSI model, is implemented by the physical channel. The Physical layer insulates Layer 2, the Data Link layer, from medium-dependent physical characteristics such as baseband, broadband or fiber-optic transmission. Layer 1 defines the protocols that govern transmission media and signals. Point-to-Point: A circuit connecting two nodes only, or a configuration requiring a separate physical connection between each pair of nodes. Port: The physical connector on a device enabling the connection to be made. Port Multiplier: A concentrator providing connection to a network for multiple devices. PostScript: A printer/display protocol developed by Adobe Corp. PostScript is an actual printing and programming language to display text and graphics. Unlike line/ASCII printers, which print character input verbatim, PostScript printers accept and interpret an entire PostScript page before printing it. PPP: Point-to-Point Protocol. The successor to SLIP, PPP provides router-to-router and host-to-network connections over both synchronous and asynchronous circuits. 11-12 DSTni-XPress DR User Guide

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Glossary of Terms
Open System Interconnect (OSI):
See "ISO."
Packet:
A series of bits containing data and control information, including source and destination node
addresses, formatted for transmission from one node to another.
(Password Authentication Protocol) Authentication scheme for PPP links. A password can be specified
for both devices on a remote link. Failure to authenticate will result in a dropped connection prior to
start of data transmission.
Layer 1, the bottom layer of the OSI model, is implemented by the physical channel. The Physical
layer insulates Layer 2, the Data Link layer, from medium-dependent physical characteristics such as
baseband, broadband or fiber-optic transmission. Layer 1 defines the protocols that govern
transmission media and signals.
A concentrator providing connection to a network for multiple devices.
A printer/display protocol developed by Adobe Corp. PostScript is an actual printing and programming
language to display text and graphics. Unlike line/ASCII printers, which print character input verbatim,
PostScript printers accept and interpret an entire PostScript page before printing it.
PAP:
Physical Address:
An address identifying a single node.
Physical Layer:
Point-to-Point:
A circuit connecting two nodes only, or a configuration requiring a separate physical connection
between each pair of nodes.
Port:
The physical connector on a device enabling the connection to be made.
Port Multiplier:
PostScript:
PPP:
Point-to-Point Protocol. The successor to SLIP, PPP provides router-to-router and host-to-network
connections over both synchronous and asynchronous circuits.
11-12
DSTni-XPress DR User Guide