Extron electronic SGS 408 manual SerialCommunicationunication, c t’d, RS-232 Programmer’s Guide

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SerialCommunicationunication, c t’d

The switcher’s RS-232 connector can be connected to the serial output port of a host device such as an ECP 1000, a computer, or a control system. This connection makes software control of the switcher possible. Figure 4-1 shows a switcher RS-232 connection to a host serial port connector.

1	2	3	INPUTS	5	6	7	8	OUTPUTS
1	2	3	4	5	6	7	8	PROGRAM	PREVIEW
										PROGRAM
R	R	R	R	R	R	R	R	R	R
										PREVIEW
G	G	G	G	G	G	G	G	G	G
B	B	B	B	B	B	B	B	B	B	REMOTE
100 - 240 50/60 Hz
1.2A MAX.
										RCP
H/HV	H/HV	H/HV	H/HV	H/HV	H/HV	H/HV	H/HV	H/HV	H/HV
V	V	V	V	V	V	V	V	V	V

PROGRAM

DVI OUT

PC Computer

RS-232

Control

Figure 4-1 — Switcher RS-232 to host connection

The RS-232 connector on the switcher is a 9-pin D female connector with the following pin assignments:

Pin	Signal	Description
1	—	Not used
2	Tx	Transmit data
3	Rx	Receive data
4	—	Not used
5	Gnd	Signal ground
6	—	Not used
7	—	Not used
8	—	Not used
9	—	Not used

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

RS-232 Programmer’s Guide

The switcher accepts SIS (Simple Instruction Set) 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.

SGS-initiated messages

When a local event such as a front panel operation occurs, the switcher responds by sending a message to the host. The SGS-initiated messages are listed below (underlined).

(C) Copyright 2000, Extron Electronics, SGS 408, Vx.xx

The copyright message is initiated by the switcher when it is first powered on. Vx.xx is the firmware version number.

Reconfig

The reconfig message is initiated by the switcher when the resolution of the input signal has changed.

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

4-2 SGS 408 Switcher • Serial Communication

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Contents Eight Input, High Resolution, Seamless Graphic Switcher SGSSafety Instructions English Consignes de Sécurité FrançaisSicherheitsanleitungen Deutsch Instrucciones de seguridad EspañolQuick Start SGS SGS 408 Quick Start QS-1Button Right adjustment knob Left adjustment knobButton Right adjustment knob Left adjustment knob Quick Start SGS 408, cont’dTable of Contents Table of Contents, cont’d One Features SGS 408 Switcher IntroductionIntroductiontroduction, cont’d About the SGSSGS 408 Switcher Introduction Introduction, cont’d Two Installationstallation, cont’d Rear Panel ConnectorsInstallation SGS 408 Switcher InstallationMounting the switcher Rack mountingTabletop/desktop mounting Installation, cont’dCabling Genlocking Video Inputs for Accu-RATE Frame Lock SGSAttaching an RCP Attaching an ECPXLR cable pinouts Pin SignalCable Pinouts DVI cable pinouts Making an RCP comm cableThree Front Panel Controls SGS 408 Switcher OperationOperationeration, cont’d Default Screen LCD default screenConfiguring the SGS Operation, cont’dSelecting the input configuration Selecting the input configuration menuSelecting the output rate Selecting the output sync format and polaritySelecting a test pattern Rgbs RgbhvChanging the title settings 12 Test patterns15 ECP control Setting the program keylock 18 Resetting the title box submenu controlsSetting the LCD appearance Performing a reset23 Performing a reset Sizing an image Using the Image ControlsCentering an image Adjusting contrast and brightness Filtering an imageSelecting an Input Freezing an inputUsing the Black button Applying a cutApplying other effects Available effects32 Standard wipe transitions 35 Square wipe effects Setting up a new effect 37 ECP key title effect38 Setting up the Dissolve effect 41 Setting up the S curtains effect 44 Setting up the Square wipe effect Implementing an established effectUsing executive mode Implementing a titleOptimizing the Image Four SGS 408 Switcher Serial Communication SerialCommunicationunication, c t’dRS-232 Programmer’s Guide SGS-initiated messagesSGS error responses Using the command/response tableCommand/response table Serial Communication, cont’dCommand Ascii Response Description Command Ascii Advanced Instructions Installing the softwareControl Software for Windows Using the software SGS 408 Control Program windowFive Troubleshootingubleshooting, cont’d If the switcher does not respond to controlsSGS 408 Switcher Troubleshooting If the image does not appearAAppendix a Specificationsecifications, cont’d SGS 408 Switcher SpecificationsGeneral Specifications, cont’d AppendixBB Upgrades and Repairs Internal accessInstalling the DVI connector option SGS 408 Switcher Reference InformationFigure B-2 Installing the DVI connector option Replacing the AC fuseInstalling a firmware update Reference Information, cont’dFigure B-4 Locating and replacing ICs Extron Part Part Number Part NumbersRelated part numbers FCC Class a Notice Extron’s Warranty Extron Electronics, USA