Extron electronic IPL T SF24 Communication and Control, cont’d Device Control, Custom Web pages

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Communication and Control, cont’d

A/V Device Control

Control of A/V devices may be accomplished in any of several ways once the IPL T interface has been connected and configured. These include Web pages, Telnet, and direct port access.

Custom Web pages

These pages can either be modified versions of the existing Web pages, or new Web pages developed in the field.

Web page development can be done with a Web site development tool such as Frontpage or Dreamweaver. Custom Web pages are loadable with the Web server File Manager (see Managing files earlier in this chapter).

Telnet (Port 23)

Telnet, short for Telecommunications Network, provides a way for you to connect to a computer or server (in this case the IPL T interface) on a network. Once connected via Telnet, you can send ASCII serial commands (see the Command/response table earlier in this chapter) to control devices connected to the interface through both serial ports. Telnet only works in RS-232 mode.

Accessing and using Telnet

1.Click Start, then Run, then type in “Telnet” and click OK. The Telnet program will start (see figure 4-32).

2.At the command prompt, type “open” and press Enter.

3.At the < to > prompt, type the IP address of the IPL T unit. (The default IP address is 192.168.254.254, but it may have been changed in the setup or configuration process. If it was changed, use the new address.) Telnet will default to port 23.

Figure 4-32 — Telnet command prompt

4.If passwords were set up for the connected system, you will be prompted to log in as Administrator or User. Otherwise the system will respond with a <cr/lf>.

Figure 4-33 — Connecting to the IP address

5.Once you are connected, you can enter serial (ASCII) commands as desired.

6.When you are through entering commands to the interface, type “quit” at the command prompt to quit Telnet.

Direct port access (ports 2001 through 2002)

Direct access allows a direct, one-to-one connection to any of the serial ports using a reserved IP port number:

COM1: direct access port #2001

COM2: direct access port #2002

When a TCP session is initiated to port 2001 through port 2002, all data sent and received will pass directly to and from that port without any processing. Serial port parameters should be set via a Telnet connection prior to using direct access.

Using direct access

1.Access the unit via Telnet and configure the COM port parameters as desired using serial commands (see the Command/response table earlier in this chapter).

2.Close the initial Telnet session.

3.Open a direct access Telnet session to the selected port by entering the IP address followed by a space then the port number (e.g., 192.168.244.244 2001).

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Contents IP Link Tools USAFCC Class a Notice PrecautionsExtron’s Warranty Quick Start Guide IPL T SF24 and SFI244 Under Desk Projector MountTable of Contents Table of Contents, cont’d IPL T SF24 and SFI244 OneIntroduction About this Manual FeaturesIntroduction About the IPL T SF24 and SFI244 InterfacesTwo Installation and OperationEasily configured and controlled Introduction, cont’dIPL T SF24 and IPL T SFI244 Installation and Operation Installation and OperationInstallation Overview Mounting the IPL T InterfacePower Installation and Operation, cont’dRear Panel Features and Cabling Furniture or projector mountingEthernet/LAN Serial communicationIdentification Front panel indicatorsOperation Resetting the unit Connection and Configuration ThreeSerial connection Connection and Configuration, cont’dConnecting the Hardware Ethernet connectionIPL T interface configuration Configuring the HardwarePC configuration Flex I/O connectionPing Configuring the IPL T using direct PC connectionArp -s 10.13.170.15 00-05-A6-00-0A-90 Four Connection and Configuration, cont’dFirmware upgrades Communication and ControlFlex I/O ports Communication and Control, cont’dPorts Overview Digital inputAnalog input Bidirectional serial control interface portsDigital output Communication with the Interface Accessing and using the Web server Logon and system statusEstablishing or changing system or port settings Web server10 Web server System Settings screen Controlling IR devices or sending IR commands SFI244 onlyEditing and adding e-mail alerts Setting and changing your passwordsCommunication and Control, cont’d Upgrading the firmware Sending an e-mail alert through TelnetEsc 4 SM Managing filesIR Learning SFI244 only Creating a driver with the IR Learner softwareUsing the command/response table Programmer’s Guide for the Telnet and Web browserSymbol definitions Password information Copyright informationBidirectional Serial Data port 28 = Commands that may give E28 file not foundError responses Flex I/O Data portFirmware Version/Part Number/Information IP Setup CommandsIR/Serial Data port SFI244 only Web Browser Specific File CommandsRe-map port designations MailServer side includes Reset ZAP/Erase CommandsCommunication and Control, cont’d Customization ControlExample Query stringCode examples 26c Browser view 28a Html source code using a query string Href=index.html?cmd=W1*1*15*0irPlay/a 30b Browser viewUnsafe characters URL encodingReserved characters Custom Web pages Direct port access ports 2001 throughCommunication and Control, cont’d Device Control Telnet PortPort redirect TroubleshootingPower connections Data connectionsSpecifications, Part Numbers Accessories AAppendix aSpecifications Parts AppendixBBGlossary Included partsGlossary GlossaryGlossary, cont’d
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