Appendix A • RS-232 Programming

Simple Instruction Set – Command codes

 

 

 

Extron’s Simple Instruction Set (SIS) minimizes the code required.

Initial power up

Unit response

 

 

©COPYRIGHT 1999, EXTRON ELECTRONICS System 5cr, V1.04

 

 

 

 

Command Name/Description

ASCII

Hex

Unit response

 

 

 

 

Input Selection – Select one of five inputs to be connected to the output video and/or audio device(s). Send the input number, followed by the specific character ($, &, !) to define whether to switch audio, video, or both.

Audio only

$

30+

24

A

Video only

&

30+

26

V

Both Video and audio

!

30+

21

C ø

 

 

 

 

 

Room – Switch between two states of the relay which operates room functions, such as lights, display screen, etc.

On

O

 

 

4F

 

 

 

Rly

 

 

Off

o

 

 

6F

 

 

 

Rly

ø

 

 

 

 

 

 

 

 

 

Display Power – Turn the display device (projector) On or Off.

 

 

 

 

 

 

On (discrete)

[

 

 

5B

 

 

 

Pwr

 

 

Off (discrete)

]

 

 

5D

 

 

 

Pwr

ø

 

 

 

 

 

 

 

 

Display Mute – Either S or s will toggle the video output Mute state.

 

 

 

 

 

Toggle

S/s

 

 

53/73

 

 

 

Mut

 

 

 

 

 

 

 

 

 

 

 

 

 

Display Mode

 

 

 

 

 

ø

 

 

Toggle

J

 

 

4A

 

 

 

Mde

 

 

 

 

 

 

 

Audio Gain – (0 = affect master volume output, 1 = affect current input attenuator)ø

 

Set gain (amp output)

0*

 

G

30 2A

47

 

 

Aud

 

 

Set attenuation (input)

1*

 

G

30 2A

47

 

 

Aud

 

 

Increment up (amp output)

{ G

 

 

7B 47

 

 

 

Aud

 

 

Increment down (amp output)

} G

 

 

7D 47

 

 

 

Aud

ø

 

 

 

 

 

 

 

 

 

 

 

 

Read Attenuators

*A

 

 

2A 41

 

·

· ·

·

 

 

 

 

 

 

 

 

 

 

Video Configuration, Set video type

 

* \

 

 

 

 

*

5C

Vid/Svoø

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Query Software Version

Q/q

 

 

51/71

 

 

 

Ver

·

ø

 

 

 

 

 

 

 

 

 

 

Request Part Number

N/n

 

 

4E/6E

 

 

 

Nxx-xxx-xxø

 

 

 

 

 

 

 

 

 

 

Request Information

I/i

 

 

49/69

V

·A ·T

·Pwr

·Rly ·Clp ·Mut ·Aud

 

 

 

 

 

 

 

 

 

 

 

Error Response codes

 

 

 

 

 

 

 

 

 

ø

Invalid input number

E01

 

 

The specified input number is something other than 1 - 5.

Invalid command

E10

 

 

The System 5 received a character that is not a command.

Invalid Value (out of range)

E13

 

 

The value parameter is not within the allowed range.

 

 

 

 

 

 

 

 

 

 

 

Definitions and Abbreviations:

= CR/LF (hex 0D 0A)

ø = Input #1 through 5, or 0 = no connection

= 0 or 1 (0 = off, 1 = on)

= 0 – 100 (steps of audio attenuation)

= Video type (0 = RGB, 1 = composite video, 2 = S-Vid)

= 4 or 5 (Configurable video inputs)

= Controller firmware version, followed by IR firmware version

= 0 or 1 (0 = Off, 1 = On)

= 3, 2, 1, or 0 (3 = display is busy powering up, 2 = display is busy powering down, 1 = display power is on, 0 = display power is off)

·= space (If indicated, the space must be there.)

Extron • System 5cr Switcher • User’s Manual

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Image 31
Extron electronic 68-388-01 manual Definitions and Abbreviations, Ascii

68-388-01 specifications

Extron Electronics has long been a prominent name in the AV integration industry, known for its innovation and quality products. One of the standout models in their product line is the Extron 68-388-01, a versatile and user-friendly solution designed to enhance various audiovisual experiences. This device exemplifies Extron's commitment to excellence, delivering robust performance and seamless integration for a variety of applications.

The Extron 68-388-01 is primarily an HDMI to RGB scaler designed for converting HDMI signals into high-quality RGB analog video outputs. This feature is particularly beneficial for environments where legacy analog display equipment is still in use, allowing for compatibility with modern HDMI sources without sacrificing signal quality. The device supports a wide range of resolutions up to 1920x1200, ensuring it meets the demands of high-definition content while maintaining clarity and detail.

A key feature of the 68-388-01 is its advanced scaling technology. Utilizing precise scaling algorithms, this device effectively adjusts the input signal to match the native resolution of the output display, minimizing artifacts and enhancing image quality. This technology is particularly useful in settings such as classrooms and conference rooms, where visual clarity is essential for effective communication.

Another notable characteristic of the Extron 68-388-01 is its user-friendly interface. Equipped with a straightforward front-panel control system, users can easily manage settings and configurations, making it suitable for both tech-savvy users and those less familiar with AV technology. Additionally, the device comes with Extron's proprietary software, allowing for remote management and configuration via a connected PC or network.

The build quality of the 68-388-01 is typical of Extron's reputation for durability and reliability. Designed for rack mounting, it fits seamlessly into existing AV installations while offering excellent thermal management and low power consumption. Its compact form factor enhances versatility, making it an ideal choice for a range of environments, from education to corporate and broadcast applications.

In conclusion, the Extron 68-388-01 stands out as an exceptional HDMI to RGB scaler, combining advanced features, robust performance, and ease of use. Its ability to bridge the gap between modern digital sources and legacy analog displays makes it an invaluable tool for any AV professional looking to create a flexible and future-proof installation.