Extron electronic SFI244 Series, IPL T SF24 user manual Glossary

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Glossary

Glossary

10/100Base-Tis Ethernet which uses unshielded twisted pair (UTP - Cat 5, etc.) cable, where the amount of data transmitted between two points in a given amount of time is equal to either 10 Mbps or 100 Mbps.

Address Resolution Protocol (ARP) is a protocol which assigns an IP address to a device based on the device’s MAC or physical machine address.

Custom Web page is any file that can be loaded into an IPL box and served by the IPL’s internal Web server. A custom Web page can provide control of devices attached to the IPL without use of the Global Viewer (GV) or Global Viewer Configurator (GVC) software. This is true with or without an accompanying event script. Any number and size of graphics can be used, but if they are too large to fit on the IPL, you can write your Web page so that they can be served from another Web server. If you install Microsoft Internet Information Services (IIS) on your desktop, you can serve any page on its hard disk. The IPL functions like a little computer with a Web server—you can use it for various Web tasks.

DHCP is the Dynamic Host Configuration Protocol (DHCP), a standardized communications protocol that enables network administrators to locally and automatically manage the assignment of IP addresses in an organization’s network.

Driver is a Global Viewer Configurator (GVC) compatible package. It includes the event script that controls devices.

Ethernet is a network protocol that uses MAC addresses instead of IP addresses to exchange data between computers. Using ARP (see above) with TCP/IP support, Ethernet devices can be connected to the Internet. An Ethernet LAN typically uses unshielded twisted pair (UTP) wires. Ethernet systems currently provide transmission speeds of 10 Mbps or 100 Mbps.

Event script is a program that runs on an IPL box and issues queries and commands to the attached devices. Event scripts are written in the “Extron C” language (.sc), and compiled into an event script (.evt). The Global Viewer Configurator performs this compilation. The compiled result (.evt) is loaded onto the IPL box. The Extron C language is similar to ANSI C, with some differences. As long as event scripts are turned on, event scripts run continuously on the box.

Floating is the condition of a device or circuit that is not grounded and not tied to any established potential.

Global Viewer (GV) is a set of Web pages (HTML, XML, JS) and graphics that are loaded into the memory of an IPL. These pages provide an interface for controlling devices attached to the IPL.

They communicate with the event scripts running on the IPL, and the event scripts issue commands and queries. This communication between the Web pages and the event scripts occurs through predetermined memory locations in the IPL. The GV is initially created by the Global Viewer Configurator (GVC); however, it is possible to edit the GV HTML, XML, and JavaScript files outside of the GVC. This edited GV is called a “hard-coded” or manually generated GV.

Global Viewer Configurator (GVC) is a Windows-based program that, based on user input, creates a Global Viewer (GV). The GVC requests system information such as which devices you have and your current list of IP addresses. With this information, GVC creates a GV for your specific devices. The GVC also compiles the event scripts and loads the GV and event scripts onto the box. When using the GVC, the user must specify the port number for each device (to be controlled, attached devices must be on that port). In order for multiple IPL devices to appear in the same GV, all the devices must be configured at the same time using the GVC.

HTTP is an acronym for the HyperText Transfer Protocol (HTTP), a Web protocol based on TCP/IP, that is used to fetch HyperText objects from remote Web pages.

Hysteresis (deadband) is the lag that exists between the responding parameter and the changing parameter.

Internet Protocol (IP) is the protocol or standard used to send information from one computer to another on the Internet.

IP address is a unique, 32-bit binary number (12 digit decimal number, xxx.xxx.xxx.xxx) that identifies each sender and each receiver of information connected to a LAN, WAN, or the Internet. IP addresses can be static (see static IP) or dynamic (see DHCP).

IP net mask is a 32-bit binary number (12 digit decimal number, xxx.xxx.xxx.xxx) used on subnets (smaller, local networks) to help the router determine which network traffic gets routed internally to local computers and which network traffic goes out on the rest of the network or the Internet.

Media Access Control (MAC) Address is a unique hardware number given to devices that connect to a network such as the Internet. When your computer or networking device (router, hub, interface, etc.) is connected to a LAN or the Internet, a table (see ARP) relates the device’s IP address to its corresponding physical (MAC) address on the LAN.

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IPL T SF24 and IPL T SFI244 • Glossary

IPL T SF24 and IPL T SFI244 • Glossary

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Contents USA IP Link ToolsExtron’s Warranty PrecautionsFCC Class a Notice Under Desk Projector Mount Quick Start Guide IPL T SF24 and SFI244Table of Contents Table of Contents, cont’d Introduction OneIPL T SF24 and SFI244 About the IPL T SF24 and SFI244 Interfaces FeaturesIntroduction About this ManualIntroduction, cont’d Installation and OperationEasily configured and controlled TwoMounting the IPL T Interface Installation and OperationInstallation Overview IPL T SF24 and IPL T SFI244 Installation and OperationFurniture or projector mounting Installation and Operation, cont’dRear Panel Features and Cabling PowerSerial communication Ethernet/LANOperation Front panel indicatorsIdentification Resetting the unit Three Connection and ConfigurationEthernet connection Connection and Configuration, cont’dConnecting the Hardware Serial connectionFlex I/O connection Configuring the HardwarePC configuration IPL T interface configurationArp -s 10.13.170.15 00-05-A6-00-0A-90 Configuring the IPL T using direct PC connectionPing Communication and Control Connection and Configuration, cont’dFirmware upgrades FourDigital input Communication and Control, cont’dPorts Overview Flex I/O portsDigital output Bidirectional serial control interface portsAnalog input Web server Accessing and using the Web server Logon and system statusEstablishing or changing system or port settings Communication with the InterfaceControlling IR devices or sending IR commands SFI244 only 10 Web server System Settings screenCommunication and Control, cont’d Setting and changing your passwordsEditing and adding e-mail alerts Managing files Sending an e-mail alert through TelnetEsc 4 SM Upgrading the firmwareCreating a driver with the IR Learner software IR Learning SFI244 onlyProgrammer’s Guide for the Telnet and Web browser Using the command/response tableSymbol definitions Copyright information Password informationFlex I/O Data port 28 = Commands that may give E28 file not foundError responses Bidirectional Serial Data portIR/Serial Data port SFI244 only IP Setup CommandsFirmware Version/Part Number/Information Mail File CommandsRe-map port designations Web Browser SpecificControl Reset ZAP/Erase CommandsCommunication and Control, cont’d Customization Server side includesCode examples Query stringExample 26c Browser view 28a Html source code using a query string 30b Browser view Href=index.html?cmd=W1*1*15*0irPlay/aReserved characters URL encodingUnsafe characters Telnet Port Direct port access ports 2001 throughCommunication and Control, cont’d Device Control Custom Web pagesData connections TroubleshootingPower connections Port redirectAAppendix a Specifications, Part Numbers AccessoriesSpecifications Included parts AppendixBBGlossary PartsGlossary GlossaryGlossary, cont’d
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