Alcorn Mcbride 8 TraXX Скачать руководство пользователя страница 13

 

RS232C Serial Control 

The 8TraXX may be controlled using serial RS-232 messages via the DB-9 Serial 
Connector.  The data format is: 

 9600

 Baud, 

N

o Parity, 

8

 bits, 

1

 Stop bit 

The protocol is ASCII-based. Upper or lower case characters can be used 
interchangeably. 

 

Unlike with parallel 
control, RS232 and 
MIDI control allow you 
to play any sound to any 
channel. 

Some commands (i.e. Play, Assign Sound) commands contain data fields 
specifying which sound number you want to play, and to which channel you want it 
to play to.  Other commands (i.e. Mute, Stop) only specify which channel is to be 
affected by the particular command. 

The details of these commands are listed below.  

<CR> is a byte with the  
hexadecimal value 0D. 

Throughout the following <CR> means carriage return. 

Play File to Channel 

 

Description:   

This command causes the 8TraXX to play a specific sound file to a channel.  

Command Bytes: 

cPL <CR>  or   ncPL<CR>   or   nncPL<CR>   or   nnncPL<CR> or nnnncPL<CR> 

 

where n, nn, nnn, or nnnn is the sound number in ASCII 

 

and c is the channel number in ASCII 

Message Response: 

R<CR> 

Comments:  

If no sound number is specified, the number specified with the last Select File 
command (see below) will be used. 

 

Sound numbers 1 through 511 are interruptible, meaning that they will restart if 
commanded to play again while currently playing. 

 

Sound numbers 1001 through 1511 are uninterruptible, meaning that they will play 
through to completion (unless receiving a stop command) even if another play 
command is received while playing. 

 

Channel numbers range from 1 through 8, or “*” for All Channels 

 
Examples: 

Play file 215 to channel 4.  

 

2154PL<CR>  

 

Play file 1 to channel 7. 

 

 

17PL<CR> 

 

Loop Play 

 

Description:   

This command causes the 8TraXX to select the specified sound file and play it to the 
specified channel, automatically looping it back to the start when the sound finishes. 

Command Bytes: 

cLP<CR>  or  ncLP<CR>   or   nncLP<CR>   or   nnncLP<CR> or nnnncLP<CR> 

 

where n, nn, nnn, or nnnn is the sound number in ASCII 

 

and c is the channel number in ASCII 

Message Response: 

R<CR> 

Comments:  

If no sound number is specified, the number specified with the last Select File 
command (see below) will be used. 

August 8, 2006     •   Alcorn McBride 8TraXX User’s Manual    •    Rev 1.8      •  

Page 7 

Содержание 8 TraXX

Страница 1: ...8 TraXX Eight Independent MP3 Players User s Guide...

Страница 2: ...n applications where a malfunction can reasonably be expected to result in personal injury Customers using or selling Alcorn McBride products for use in such applications do so at their own risk and a...

Страница 3: ...August 8 2006 Alcorn McBride 8TraXX User s Manual Rev 1 8 Page iii...

Страница 4: ...le to Channel__________________________________________________________________ 7 Loop Play__________________________________________________________________________ 7 Assign Sound____________________...

Страница 5: ...August 8 2006 Alcorn McBride 8TraXX User s Manual Rev 1 8 Page v...

Страница 6: ......

Страница 7: ...ers the latest in Digital Audio Repeater technology combining MP3 audio with Compact Flash for a rugged reliable maintenance free solution to your playback needs Access time is nearly instantaneous Al...

Страница 8: ...Page 2 August 8 2006 Alcorn McBride 8TraXX User s Manual Rev 1 8...

Страница 9: ...ill be activated and played out the corresponding channel Pressing a button once plays the sound Pressing it again while the sound is playing stops playback Holding the button down causes the sound to...

Страница 10: ...edia activity It illuminates whenever the Compact Flash media is being accessed The LED is also used for error indication refer to error indication section below Error Indications The Channel Status L...

Страница 11: ...pectively Repeatedly activating a play input while a channel is playing will restart the channel It is possible to prevent sounds from restarting during play by adding 1000 to the sound number i e Sou...

Страница 12: ...near the power connector Ground Lift In the event of AC hum or noise this switch may be set to the off position to isolate the 8TraXX circuit ground from the chassis Contacts Voltage Inputs Be sure t...

Страница 13: ...the channel number in ASCII Message Response R CR Comments If no sound number is specified the number specified with the last Select File command see below will be used Sound numbers 1 through 511 ar...

Страница 14: ...e time using the assigned sound numbers for each channel specified by a previous Select File command Command Bytes ncSE CR or nncSE CR or nnncSE CR or nnnncSE CR where n nn nnn or nnnn is the sound nu...

Страница 15: ...current version of the installed firmware Note The firmware version can also be obtained by holding down the 8th front panel channel button as power is applied to the 8TraXX The channel LEDs on the f...

Страница 16: ...in the show controller starting at the flag number designated by the flag offset parameter This parameter is in HEX and has a range of 0x40 to 0x77 variable offset WAK CR Selects Variable Offset Mode...

Страница 17: ...ered the correct command Check for avail E11 Media Not Present Is the Compact Flash inserted Formatted A recommended brand E12 Search Error Selecting the correct file Is the file on the card Is it nam...

Страница 18: ...Page 12 August 8 2006 Alcorn McBride 8TraXX User s Manual Rev 1 8...

Страница 19: ...e space requirements The most common bitrate is bolded Bitrate Kbps Quality File Size min Original WAV Best quality achievable is whatever the source is 10 47Mbytes 80 FM radio quality 594Mbytes 96 Ne...

Страница 20: ...Page 14 August 8 2006 Alcorn McBride 8TraXX User s Manual Rev 1 8...

Страница 21: ...ssage Format Status Byte Control Number Control Value Function Status Byte control change Control Number Range Control Value Range Play Channel 176 64 71 select channels 1 8 1 122 selects sound number...

Страница 22: ...Page 16 August 8 2006 Alcorn McBride 8TraXX User s Manual Rev 1 8...

Страница 23: ...lowed to be interrupted while playing and start over or if it should keep playing through to completion and ignore incoming play requests Sound numbers 1001 to 1511 are uninterruptible meaning that re...

Страница 24: ...Page 18 August 8 2006 Alcorn McBride 8TraXX User s Manual Rev 1 8...

Страница 25: ...and copy your MP3 files to that directory Sounds can be numbered as shown below SND00001 MP3 up to SND09999 MP3 Interruptible versus Uninterruptible Operation With files in the sounds subdirectory an...

Страница 26: ...Page 20 August 8 2006 Alcorn McBride 8TraXX User s Manual Rev 1 8...

Страница 27: ...no Supports all the MPEG 1 and 2 sampling frequencies and the extension to MPEG 2 5 including 48 44 1 32 24 22 05 16 12 11 025 8 KHz Accepts MPEG 2 5 Layer III MP3 elementary compressed bitstreams wit...

Страница 28: ...Page 2 August 8 2006 Alcorn McBride 8TraXX User s Manual Rev 1 8...

Страница 29: ...hicle power connection A windows program GPS Builder is used to capture geographical points and make a playlist which resides on the Compact Flash card installed in the AM4 or DVM7400 You can download...

Страница 30: ...Page 4 August 8 2006 Alcorn McBride 8TraXX User s Manual Rev 1 8...

Страница 31: ...rack have identical encoding parameters i e bitrate sample frequency encoding format etc Q When skipping between files on a single track there is a long delay between when I issue the play command and...

Страница 32: ...Page 6 August 8 2006 Alcorn McBride 8TraXX User s Manual Rev 1 8...

Страница 33: ...C 100 F free air circulation 0 90 relative humidity non condensing 20 g max Vibration with removable Compact Flash Card Controls Test Button for each track Mute All button Playing LED for each track...

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