IP Solutions - Glossary of Terms Router
A network device that connects two or more network segments; a router then can choose the best way for network packets to travel the network to arrive quickly and efficiently at their destination.
RS-232
A serial connection port on a PC, used for connecting a mouse, printer, modem, or other device.
RS-232
Cable This cable transmits data at about a 20 Kbps. A serial cable generally used for connecting a computer to a peripheral device, the RS-232 has a maximum cable limit of 15 meters, or about 50 feet. Used for Direct Cable Connection in Windows. See also Direct cable Connection.
RS-485
RS-485 is a serial connection port that enables you to connect from 10 to 32 devices.
Script Files
Mini-programs that automate logging in to another network, such as a remote network or the Internet. Generally included in a script file is the username and password. When you dail up another computer on a network, the script enters your username and password, so you don't have to type them.
SCSI (Small Computer System Interface)
A standard high-speed parallel interface used to connect the microprocessor to peripheral devices and printers, or to connect computers together or to a LAN.
SDRAM (Synchronous Dynamic Random Access Memory)
SDRAM currently the is
standard memory type. SDRAM supports burst access modes.
Serial Port
A serial port transmits data a bit more slowly than parallel ports, one bit at a time. Serial cables transmits data sequentially over only one pair of wires. Since parallel cables transmit data simultaneously over multiple lines, parallel is the faster of the two connection methods. A serial port is also a COM port.
Server
The computer on a network that provides services-such as file storage, print management, Internet access, and so on-to other computers on the network.
Session Layer
One of the ISO/OSI layers. The session layer maintains the connection, or session for as long as it takes to transmit the packets. The session layer also performs security and administration functions.
Share
A resource that is designated as usable by two or more computers-a folder or printer, for example, can be considered a share.
Share-Level Access Control
With a peer-to peer network, you use share- level access control to enable all users to share files, folders, printers, and other resources on their computer. Each user sets his or her shares, adds passwords if desired, and so on. Sharing The process of several computers using a resource in a cooperative manner.
186 Sales and Support, Call: 1300 ADI ADI Technical Support, Call: 1800 220 345
www.adiglobal.com/au Sharing
The process of several computers using a resource in a cooperative manner.
Shielded Twisted-Pair (STP) Cable
Cable with a foil shield and copper braid surrounding the pairs of wires. STP provides high-speed transmission for long distances.
SLIP (Serial Line Internet Protocol)
An older protocol that isn't used much anymore; however, you still might run into servers using SLIP.
See intelligent home.
SmartHome Smart Phone
A smart phone takes multiple technologies- cell phone, faxes, pagers, PDAs, and so on- and integrates them into one product you can use to perform all your tasks.
SMB (Server Message Block)
SMB enables a computer to use network resources as if they were local. SMB is more commonly used these days, since Macintosh and Linux make use of the protocol.
SMTP (Simple Mail Transfer Protocol)
The e-mail host name. SMTP is the part of the system that sends the mail out to other e-mail servers on the Internet.
SNMP (Simple Network Management Protocol)
A set of standards for communications with devices-such as routers, hubs, and switches- connected to a TCP/IP network. SNMP, a TCP/IP protocol, manages and monitors the network.
Spread-Spectrum Radio Frequencies
RF Standard physical interface that can pass through heavier walls. Spread-spectrum signals are fairly secure against tempering from outside sources. Additionally, spread- spectrum products provide 1 to 2 Mbps data rates at a range from 50 feet to 1,000 feet, depending on the building construction, interference sources, and other factors.
A protocol designed to enable encrypted, authenticated communications across Internet.
SSL (Secure Sockets Layer)
A computer that is not connected to a network. Also called spanning tree, the star topology
Standalone Star Topology
uses a hub with its own cable, and signals are passes from station to station until the designated computer is found.
Streaming
Describes the constant flow of audio and video files so that they look like they're running in real time, without pauses, jitters, or other interference.
Subnet Mask
Enables the computer in one segment of a network to see computers in another segment. The ISP uses a subnet mask-such as 255.255.255.255-to communicate with other segments on the Internet network.
Subnetwork
A smaller network connected to a larger and more powerful system by a bridge or router computer's network or disk access in a graphical manner. The programs enables you to monitor running processes, memory usage, dial-up access, and more.
System Policy Editor
A network administrator program you can use with client/server network. Using the System Policy Editor, you can configure settings the control individual users, individual computers, or group of users.
T1
A high-quality, reliable communications line. Total speed is 1.544 Mbps. Because of the expense, however, T1 is best for corporations connecting a large number of users.
T-connector
A T-connector is also used with coaxial cable. T-connectors attach two thin Ethernet cables and provide a third connections for the network interface card.
TCP (Transmission Control Protocol)
A higher-level protocol than IP, it provides continuing connections between programs. TCP also makes IP datagrams smaller and faster. TCP divides datagrams into smaller segments to fit the physical requirements of the servers on the network. It then uses IP to transmit the segments of data.
TCP/IP (Transmission Control Protocol/ Internet Protocol)
A network protocol used on the Internet and on local area networks. TCP/IP is a set of communications protocols supported by various manufacturers and vendors. Corporations, universities, and other agencies use TCP/IP to communicate over the Internet.
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