Extron electronics A-4 User Manual download pdf (Page 17)

VSC 150 • Remote Control

Remote Control, cont’d

3-3

The VSC 150 displays the copyright message when it first

powers on. Vx.xx is the firmware version number.

RECONFIG The VSC 150 sends the Reconfig message

when the input source is changed and when changes have

been made to one or more of the settings.

VSC error responses

When the VSC 150 receives a valid SIS command, it

executes the command and sends a response to the host

device. If the VSC 150 is unable to execute the command

because the command is invalid or it contains invalid

parameters, it returns an error response to the host. The

error response codes and their descriptions are as follows:

E10 – Invalid command

E11 – Invalid preset number

E13 – Invalid value (the number is out of range).

Time-out

A delay of 10 or more seconds between command sequence

characters causes a time-out. The command operation is

stopped, and there is no indication that a time-out occurred.

Using the command/response table

The command/response table on the next page lists valid

command ASCII codes, the VSC 150’s responses to the host,

a description of the command’s function or the results of

executing the command, and an example of each command.

Lower case characters are acceptable in the command field

only where indicated.

The ASCII to HEX conversion table below is for use with

the command/response table.

ASCII to HEX Conversion Table

•

Remote Control

3-2

DB9 Pin Locations

Female

The VSC 150 can be remotely controlled via a computer or a

control panel attached to the rear panel RS-232 connector.

Alternatively, the VSC 150 can be controlled using the IR

601 infrared remote control. This chapter discusses how to

use each of these options to control the scan converter.

RS-232 Remote Control

The VSC 150 can be controlled by a host computer or other

control device via an RS-232 connection with a protocol of

9600 baud, 1 stop bit, no parity, and no flow control. The

control device (host) can use either Extron’s

Simple Instruction Set (SIS) or the graphical

control program for Windows.

The rear panel RS-232 9-pin D connector has the following

pin assignments:

Pin RS-232 function 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

Host-to-VSC communications

SIS commands consist of one or more characters per field.

No special characters are required to begin or end a

command sequence. When the VSC 150 determines that a

command is valid, it executes the command and sends a

response to the host device. All responses from the scan

converter to the host end 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.

VSC-initiated messages

When a local event such as a front panel selection or

adjustment takes place, the VSC 150 responds by sending a

message to the host. No response is required from the host.

The VSC-initiated messages are listed here (underlined).

Vx.xx

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 23

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Extron electronics A-4 User Manual Page 17

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