Extron electronic IN1508 manual Host-to-Switcher Instructions, Switcher-Initiated Messages

Page 69

Serial Communications

The switcher’s rear panel Remote 9-pin D female connector (figure 4-1) can be connected to the RS-232 serial port output of a host device such as a computer running the HyperTerminal utility or a control system. This connection makes software control of the switcher possible.

	5	1	Pin	RS-232	Function
	5	1	1	—	Not used
			1	—	Not used
			2	TX	Transmit data
	9	6	3	RX	Receive data
	9	6	4	—	Not used
	Female		4	—	Not used
			5	Gnd	Signal ground
			6	—	Not used
			7	—	Not used
			8	—	Not used
			9	—	Not used

Figure 4-1 — Remote connector pin arrangement

The protocol is 9600 baud, 8-bit, 1 stop bit, no parity, and no flow control.

Host-to-Switcher Instructions

The switcher accepts (Simple Instruction Set) SIS™ commands through the RS-232 port. SIS commands consist of one or more characters per command field. They do not require any special characters to begin or end the command character sequence. Each switcher response to an SIS command ends with a carriage return and a line feed (CR/LF = ), which signals the end of the response character string. A string is one or more characters.

Switcher-Initiated Messages

When a power-up occurs, the switcher responds by sending the following message to the host:

Copyright 2005, Extron Electronics, IN1508, Version x.xx

Version x.xx is the firmware version number.

The switcher does not expect a response from the host; but, for example, the host program might request a new status.

Switcher Error Responses

When the switcher receives an SIS command and determines that it is valid, it performs the command and sends a response to the host device. If the switcher is unable to perform the command because the command is invalid or contains invalid parameters, the switcher returns an error response to the host. The error response codes are:

E01 — Invalid input channel number (too large)

E09 — Invalid function number (too large)

E10 — Invalid command

E13 — Invalid value (out of range)

E17 — Invalid command for signal type

4-2 IN1508 Scaling Presentation Switcher • Serial Communications

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Contents IN1508 Precautions FCC Class a Notice Quick Start IN1508 Scaling Presentation Switcher Front Panel Controls Table of Contents Table of Contents, cont’d IN1508 Scaling Presentation Switcher Table of Contents Iii Iv IN1508 Scaling Presentation Switcher Table of Contents One Introductiontroduction, cont’d DVI video IN1508 Scaling Presentation Switcher IntroductionFeatures Standard DVI cableIN9700 cable IN1508 Scaling Presentation Switcher Introduction Introduction, cont’d IN1508 Scaling Presentation Switcher Introduction Introduction, cont’d Two Mounting the Switcher Tabletop useRack mounting Power connection Cabling and Rear Panel ViewsVideo connections Audio connections Installation, cont’dRemote Control Battery Installation ConfigurationRS-232 connection Installation, cont’d Three Front Panel Controls and Indicators IN1508 Scaling Presentation Switcher OperationInfrared sensor Input selection buttons and LEDs Input controlsOutput Rate selection Operation, cont’dPIP buttons Picture-in-Picture controlsMenu control buttons Picture Controls buttonsDesired buttons on the remote. The maximum Remote Control ButtonsPicture-In-Picture PIP buttons The PIP Input Selection buttons The Input SelectionOperation, cont’d Operations PowerPicture-in-picture mode operation 10 IN1508 Scaling Presentation Switcher OperationInput selection operation PIP mode input selection and swap operations Menu system operation 12 IN1508 Scaling Presentation Switcher OperationButtons Selection boxes and status indicator barsStatus indicator bar control 14 IN1508 Scaling Presentation Switcher OperationSelection box control For picture control button operation For menu system operation16 IN1508 Scaling Presentation Switcher Operation Main menu systemInput submenu Size selection Center selectionZoom selection Pan selectionOperation, cont’d Contrast status indicator bar Brightness status indicator barColor status indicator bar Tint status indicator barOutput submenu 20 IN1508 Scaling Presentation Switcher OperationResolution selection box Refresh Rate selection boxSync Polarity selection box Output Volume status indicator bar Signal Type selection boxInput Gain/Attenuation status indicator bar 22 IN1508 Scaling Presentation Switcher OperationAdvanced submenu Audio Delay selection boxFreeze selection box Blank selection boxFade Switch selection box PIP Mode selection boxBlue Mode selection box Reset selection boxPicture adjustments Performing a system reset from the front panelPress again 26 IN1508 Scaling Presentation Switcher Operation20 Picture adjustments flowchart, IR remote control buttons 28 IN1508 Scaling Presentation Switcher Operation Sharpness status indicator bar, on Resolution and refresh rates Setting up a DVD source30 IN1508 Scaling Presentation Switcher Operation Optimizing the VideoCRT displays selecting the optimum refresh rate CRT displays selecting the optimum resolutionCRT Displays 32 IN1508 Scaling Presentation Switcher Operation22 Input submenu’s Advanced selections Input submenu’s Advanced selections34 IN1508 Scaling Presentation Switcher Operation 23 Advanced input settings24 Incorrectly started image Horizontal Start and Vertical Start status indicator bars36 IN1508 Scaling Presentation Switcher Operation Active Pixels and Active Lines status indicator barsHorizontal rate = 31.5 kHz, vertical rate 60 Hz Total Pixels status indicator bar Phase status indicator bar38 IN1508 Scaling Presentation Switcher Operation Troubleshooting Optimizing the AudioGeneral checks 40 IN1508 Scaling Presentation Switcher Operation Specific problemsCompressed HorizontallyImage is stretched Active lines may be Vertically42 IN1508 Scaling Presentation Switcher Operation Active lines setting Problem Possible cause Solution Total pixels settingSetting cannot be Horizontal start44 IN1508 Scaling Presentation Switcher Operation Four Switcher-Initiated Messages Host-to-Switcher InstructionsSwitcher Error Responses IN1508 Scaling Presentation Switcher Serial CommunicationsSymbol definitions Using the Command/Response TableCommand Ascii Command Response Additional description Command/response table for SIS commandsCommand/response table for SIS commands cont’d Zoom Audio mute Command/Response Table for Special Function SIS Commands Command/response table for special function SIS commandsInput aspect ratio DVI auto-detect DVI input 8 only AAppendix a Specifications Specifications and Part NumbersAudio Included parts Part NumbersSuggested adapters CablesHigh performance DVI cables Cable Part number Specifications and Part Numbers, cont’d Asia Japan Extron’s WarrantyExtron Electronics, Europe Beeldschermweg 6C

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