Extron electronic IPL T PCS4i manual URL Encoding, Browser View of Previous Html Source Code

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Notice, in the figure below, that the commands executed by the PCS4 in response to SSI references have been replied to, and were implemented when the web page was served to the browser.

Figure 28. Browser View of Previous HTML Source Code

URL Encoding

URL (Universal Resource Locator) encoding is a method of using ASCII hexadecimal characters to display specific characters in a URL. It is used for several reasons. On some operating systems, certain characters are unsafe or not available, and others are reserved by the HTML or URL specification. URL encoding is used to insure compatibility and functionality with most Internet browsers. As a general rule, use the hexadecimal encoding method shown below when these characters appear in your URLs.

The following types of characters do not require encoding in a URL:

alphanumerics

special characters

reserved characters

0-9 a-z A-Z

$ _ _ . + ! * ( ) ,

; / ? : @ = &

When used for their reserved purposes, these characters do not require encoding within a URL.

Figure 29. Characters that Do Not Require Encoding

IPL T PCS4 • HTML Configuration and Control 37

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Contents IPL T PCS4i IPL T PCS4Safety Instructions English FCC Class a Notice Conventions Used in this Guide Software CommandsNotifications Contents IPL T PCS4 Contents About the IPL T PCS4 FeaturesIntroduction About this GuideIPL T PCS4 Application DiagramsConnection Diagram for IPL T PCS4i Installation Overview Installation Rear PanelsIPL T PCS4i Rear Panel 220 VAC Rear PanelsLAN Port Cabling Setting Up the LAN PortConnecting the Devices Configuring the LAN PortIPL T PCS4 Installation and Rear Panel Front Panel Features Front Panel Features OperationSetting Up Power Control Setting Up the System Using the Front PanelSetting Power Level Reference Thresholds Setting the Full power threshold None and Not Set thresholds If the receptacle Is set to Power level Receptacle FullStandby Clearing thresholds Front panel Security Lockout Executive ModeLED lit Group Red power LED lit Group Grouping ReceptaclesResult Resetting the UnitMode ActivationHold the Reset button in until the Power LED blinks once Configuring the Hardware Configuration ControlSetting Up the Computer Using ARP ARP-S Command Screen Screen Showing the Ping Command Setting Up the Computer Using a Web BrowserSetting up the computer for IP communication Subnet mask Default gateway Blank or Example of a Default System Settings Configuring the IPL T PCS4 using a web browserPassword Prompt Window Using the Embedded Web PagesSystem Status Web Viewing the System StatusSpecifying system settings ConfigurationIP settings Date and time settings To assign passwords Assigning passwordsRemoving passwords Mail Alerts Screen Upper Portion Entering e-mail addresses for alertsManaging receptacles Upgrading firmwareGrouping receptacles Switching power to receptacles on and offMonitoring Settings section Monitoring the receptacles and setting the alarmAlarm Relay Settings section Scheduling an individual receptacle Scheduling power to receptaclesAll receptacles on and off Scheduling receptacles by day of the weekFile Management One receptacle, power on or offAdding a directory Uploading files to the webOther file management functions Server Side Includes SSIs Custom Web PagesQuery Strings Code example Example of a Query String CommandBrowser View of Previous Html Source Code URL EncodingUnsafe characters Reserved charactersCharacters Hex Dec Accessing and Using Telnet Port Device Power ControlCustom Web Pages Power Connections TroubleshootingNetwork Connections Successful Ping Command ResponseDownloading Global Configurator Software Host-to-Interface Communication SIS Programming ControlMessages Initiated by the IPL T PCS4 Error Responses Password InformationError Response References Telnet Web Browser Using the Command and Response TableExample Symbol DefinitionsX5@ X71 Power Receptacle Monitoring and Alarm Functions Command and Response Table for SIS CommandsWeb Browser-specific Commands Set GMT offset24 View GMT offset Password and Security SettingsDirectory Commands Below Telnet text responses AC control interface SpecificationsReference Material Ethernet control interfaceGeneral Alarm relay controlMounting the IPL T PCS4 Interface Part Numbers and AccessoriesMounting the IPL T PCS4 on a Rack Shelf Rack mounting procedureMounting the IPL T PCS4 under Furniture Under-desk Mounting10/100Base-T GlossaryDriver Power level reference threshold Subnet Europe USA, Canada, South America Japan Central AmericaEurope, Africa, and the Middle China East Asia Middle East

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