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MVC 121 Plus • SIS Programming and Control

36

Error Responses

When the MVC 121 Plus is unable to execute the command, it returns an error response to 
the host. The error response codes and their descriptions are as follows:

Error Code Description

E10

Invalid command

E11

Invalid preset

E12

Invalid port number

E13 

Invalid parameter (number is out of range)

E14 

Not valid for this configuration

E17 

System timed out

E22 

Busy

E25

Device is not present

Symbol Definitions

]

=

CR/LF (carriage return/line feed) (hex 0D 0A)

}

=

Carriage return (no line feed, hex 0D)  
(use the pipe character, 

|

 , for Web browser commands))

=

Space character

|

=

Pipe (vertical bar) character

E

=

Escape key (hex 1B)  (use 

W

 instead of 

Esc

 for Web browsers)

X6)

=

Gain and trim control or mix-point select

See 

table 1 on 

page 38

X6!

=

Level value:  
line output fixed gain

-24.0

 to 

+12.0

 dB (-240 to 120) in 0.1 dB increments

X6@

=

Line input gain level value 
Mic input gain level value

Line: 

-18.0

 dB to 

+24.0

 dB (-180 to 240) in 0.1 dB increments. 

Mic:  

-18.0

 dB to 

+60.0

 dB, (-180 to 600) in 0.1 dB increments

X6#

=

Output volume (variable)

-100.0

 dB to 

0.0

 dB, (-1000 to 0) in 0.1 dB increments.

X6$

=

Mute status

0

 = unmute   

1

 = mute

Summary of Contents for MVC 121 Plus

Page 1: ...User Guide MVC 121 Plus Audio Products Mixers and Processors Three Input Stereo Mixer with DSP 68 1937 01 Rev C 01 19...

Page 2: ...ncia 68 290 01 en el sitio Web de Extron www extron com Instructions de s curit Fran ais AVERTISSEMENT Ce pictogramme lorsqu il est utilis sur le produit signale l utilisateur la pr sence l int rieur...

Page 3: ...IP Intercom IP Link Key Minder LinkLicense LockIt MediaLink MediaPort NetPA PlenumVault PoleVault PowerCage PURE3 Quantum Show Me SoundField SpeedMount SpeedSwitch StudioStation System INTEGRATOR Tea...

Page 4: ...can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a resid...

Page 5: ...ber zero and O is the capital letter o Computer responses and directory paths that do not have variables are written in the font shown here Reply from 208 132 180 48 bytes 32 times 2ms TTL 32 C Progra...

Page 6: ......

Page 7: ...ponse Tables 29 Error Responses 30 Command Response Table for Basic SIS Commands 31 Symbol Definitions 31 Command Response Table for Basic MVC 121 Plus SIS Commands 32 Command Response Tables for DSP...

Page 8: ...MVS 121 Plus Contents viii...

Page 9: ...o maintain audio signal transparency Two sets of outputs include a fixed output that is independent from volume control and a variable output that is volume adjustable All inputs and outputs are via 3...

Page 10: ...cess any input or output mix points and all audio DSP tools Using only the keyboard for software access can help expedite audio system setup and commissioning Rear panel RS 232 control port The MVC 12...

Page 11: ...ons have the correct polarity as shown in the illustration below DC Power Input POWER 12V 0 4A MAX Power Supply Output Cord SECTION A A Ridges Smooth A A DC Power Cord Captive Screw Connector Ground 1...

Page 12: ...section 16 The power supply shall not be permanently fixed to building structure or similar structure Cette installation doit toujours tre conforme aux dispositions applicables du Code am ricain de l...

Page 13: ...or eps Right Channel Red Jacket Left Channel White Jacket Tip Signal Sleeve Ring R Tip L 3 5 mm TRS Connector L R L R Unbalanced audio Balanced audio Do not tin the wires Ring Sleeves Tip Sleeve Tip S...

Page 14: ...t gain control with a range of 24 to 12 dB NOTE The main volume control knob on the front panel operates independently of the fixed output Both the fixed and variable output connectors will output aud...

Page 15: ...6 7 1 1 2 2 3 3 4 4 5 5 6 6 7 7 Figure 10 MVC 121 Plus Front Panel 1 Power Reset LED Green power indicator lights when the MVC 121 Plus is operational The LED also blinks per mode reset see Reset Actu...

Page 16: ...indicator bar lights from the bottom to the top to indicate the current mix point or volume level as shown in the table below As the volume is increased or decreased within a volume range the top LED...

Page 17: ...d or decremented for each step the volume adjust knob is turned depends on the current volume setting As the volume increases or decreases the LED bar lights to indicate the current volume range as sh...

Page 18: ...ranges limiting the gain range for smoother operation Mix point levels and Variable output levels may be set using the front panel rotary controls Input gain should be set using the DSP Configurator...

Page 19: ...tall the USB Driver on page 41 for additional information The MVC appears as a USB peripheral with bidirectional communication The USB connection can be used for software operation see Windows based P...

Page 20: ...e previous front and rear panel diagrams Hardware Reset Modes With power on when the reset button is held down the front and rear panel LEDs will pulse blink every three seconds and put the unit in a...

Page 21: ...oaded to the MVC 121 Plus NOTE The digital input connectors are used to mute or unmute the input signal using a contact closure device SIS programming commands cannot mute or unmute the input signal w...

Page 22: ...e 15 Select Trigger Type 4 The Fixed functionality of the digital input is set to Mute Unmute by default Figure 16 Fixed functionality Option 5 The Fixed target mix point is set to the selected digita...

Page 23: ...level control gain volume are accomplished using software control from a PC connected to the MVC 121 Plus via the USB configuration port or the RS 232 port The DSP Configurator program provides comple...

Page 24: ...king within the fader area brings focus to the fader The input signal level can be adjusted using any of the following methods Direct adjustment Click and hold the fader handle then drag it to the des...

Page 25: ...t The following functions are available Insert The filter block is inserted and made active by right clicking on the block and selecting from the context menu or by double clicking and entering select...

Page 26: ...processor list when the block is right clicked After the processor is inserted a double click opens the setup dialog box Figure 23 Filter Block Dialog Box Additional filters are inserted by opening th...

Page 27: ...ed When active not bypassed the line is solid Figure 25 Filter Dialog Box Filter Not Bypassed When multiple filters are enabled the graph indicates the focused filter result independent of other filte...

Page 28: ...over a Q of 1 0 Note the markers on either side of the peak frequency are at 200 Hz on the left and 5000 Hz on the right a bandwidth of about 4800 Hz Figure 26 Parametric Filter Dialog Box 1000 Hz The...

Page 29: ...quency response flat Bass and Treble Shelving Bass and treble shelving may be added to the filter Adding this filter automatically inserts both a bass and treble control row in the dialog box If only...

Page 30: ...er any or all three inputs may be routed to the output bus Figure 30 Mixer outlined in red Clicking a mix point brings focus to that mix point Double clicking a mix point opens a configuration dialog...

Page 31: ...focus indicated by a dark green circle around either the ball or bubble depending on mix status Double click Double click to open the mix point dialog box The focus circle turns light green in color...

Page 32: ...ut audio from Mic Line Input 1 is processed then arrives at the mix point and is routed to the stereo output bus Figure 33 Input 1 to Mix point A double click on the mix point opens the dialog box as...

Page 33: ...5 In the following example audio from the three inputs is processed individually and arrive at their separate mix points When the individual mix point mute buttons are released the mix point junctions...

Page 34: ...adjust the fixed output Figure 37 Output Channels Volume The Volume control block monitors and adjusts the variable output from 0 dB to 100 dB with a step resolution of 1 dB The meters monitor the ou...

Page 35: ...d and muted individually unless they are ganged When the Gang button is active red the level controls track each other and pressing either Mute button mutes or unmutes both channels The Polarity butto...

Page 36: ...DVD included with the product MVC 121 Plus RS 232 protocol 38400 baud no parity 8 data bits no flow control 1 stop bit NOTE The RS 232 configuration port requires 38400 baud communication This is a h...

Page 37: ...e following circumstances If the MVC is off and an RS 232 connection is already set up the PC is cabled to the MVC and a serial communication program such as HyperTerminal is open the connected unit s...

Page 38: ...nds there are two variations One is the global command structure documented in the Command Response Table for Basic SIS Commands that follows The second set of tables for DSP SIS commands uses the com...

Page 39: ...w soft limit or device responds with E13 error X Soft Limit Low Value must be lower than high soft limit or device responds with E13 error X1 Executive Mode 0 Disabled Full control 1 Enabled no front...

Page 40: ...ld number The least significant bits is the build number for example x xx xxxx X2 Verbose Response mode 0 Tag OFF Broadcast OFF no tag in GET command response always tag in SET command response 1 Tag...

Page 41: ...selection 1 Mic 1 2 Mic 2 3 Line 3 X1 Output selection 1 Variable 2 Fixed Gain Stage Commands Variable Output Mute Mute output 1Z Amt1 Mute output Unmute output 0Z Amt0 Unmute output View output mute...

Page 42: ...E2 No front panel control except for volume Lock status X EX1 0 Disabled Full control 1 Enabled no front panel control 2 Enabled volume control only Digital Input Commands Configure digital input EX...

Page 43: ...e 15 Figure 39 DSP Processors Addressable via SIS Commands The DSP Configurator program window addressable commands consist of an input signal gain control the mixer matrix and output volume and gain...

Page 44: ...s CR LF carriage return line feed hex 0D 0A Carriage return no line feed hex 0D use the pipe character for Web browser commands Space character Pipe vertical bar character E Escape key hex 1B use W in...

Page 45: ...5 Mic input 1 gain set to 40 0 dB Mic input 2 gain set to 12 5 dB Read a line input level EGX6 AU X6 Read input X6 value of X6 dB Example Read line input 3 left channel level EG30000AU 40 Line input 1...

Page 46: ...0001 2 Main Mix point to Fixed Outputs X6 Input 1 to left output 20000 Input 2 to left output 20100 Input 3 to left output 20200 Input 1 to right output 20001 Input 2 to right output 20101 Input 3 to...

Page 47: ...tails on connecting the RS 232 port USB 2 0 A Mini B type USB connector located on the front panel provides high speed USB 2 0 connectivity to a host computer backward compatible to 1 0 Windows based...

Page 48: ...3 to access the software application 3 Click DSP Configurator 4 and follow the on screen instructions By default the Windows installation creates a Program Files Extron DSP_Configurator folder for the...

Page 49: ...structions Figure 41 USB Installer Splash Screen 1 After the DSP Configurator program installation is complete click Next to proceed Figure 42 USB Installation 2 The USB driver installer is launched W...

Page 50: ...tor Program Starting the Program 1 To run the DSP Configurator Program click Start Programs Extron Electronics DSP Configurator DSP Configurator Figure 44 DSP Configurator Start Dialog Box The DSP Con...

Page 51: ...gurator window Emulate mode audio parameters may be selected then transferred to the MVC by going to Live mode while connected to the MVC 121 Plus Audio settings can also be tailored while connected t...

Page 52: ...to a configuration file on the PC When the saved file is opened in the DSP Configurator program the program restores all settings as the current configuration emulated if in Emulate mode or live if in...

Page 53: ...the PC comm port connected to the rear panel RS 232 port b Check the Baud Rate displayed in the comm port selection window 2 If the baud rate does not match the device rate click the Baud Rate drop do...

Page 54: ...is selected the program updates the currently open file with the configuration from the device Proceed to step 7 If Push is selected the program overwrites the device configuration with the currently...

Page 55: ...file created or opened in Emulate mode to the MVC 121 The file overwrites the configuration of the device and DSP Configurator is now connected live Changes to the configuration will be reflected imme...

Page 56: ...ambient temperature of the rack environment may be greater than room ambient temperature Therefore install the unit in an environment compatible with the maximum ambient temperature Tma 122 F 50 C spe...

Page 57: ...nting Furniture mount the MVC see the following diagram using the optional mounting kit Extron MBU 123 as follows 1 Attach the selected mounting brackets with the machine screws provided 2 If feet wer...

Page 58: ...the desired firmware file from the Extron website see Firmware Updates on page 12 for instructions To access the firmware uploader 1 Select Tools then Firmware Loader The Add Device dialog box appears...

Page 59: ...stments IP settings etc are maintained NOTE If you do not want to update the firmware or perform a mode 1 reset by mistake cycle power to the MVC 121 Plus to return to the firmware version running pri...

Page 60: ...United Arab Emirates Dubai This Limited Warranty does not apply if the fault has been caused by misuse improper handling care electrical or mechanical abuse abnormal operating conditions or if modific...

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