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Lectrosonics DMPA12 Reference Manual

Other manuals for DMPA12: Installation Manual
Manual is about: Digital

Summary of DMPA12

  • Page 1

    Dmpa12 digital power amplifier reference manual rio rancho, nm, usa www.Lectrosonics.Com fill in for your records: serial number: purchase date:.

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    Dmpa12 digital power amplifier lectrosonics, inc. 2.

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    Reference manual rio rancho, nm important safety instructions this symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure -- voltage that may be sufficient to constitute a risk of shock. This symbol, wherever it appears, alerts you to important ...

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    Dmpa12 digital power amplifier lectrosonics, inc. Note: this equipment has been tested and found to comply with the limits for a class a digital device, pursuant to part 15 of the fcc rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is...

  • Page 5: Contents

    Reference manual rio rancho, nm contents important safety instructions.............................................................................................................................................................3 general overview .........................................................

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    Dmpa12 digital power amplifier lectrosonics, inc. General overview the architecture of a lecnet 2 sound system is built around a powerful digital matrix and bus structure com- mon to all dm series components interconnected in a system. Data and audio signals are shared among the components through a...

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    Reference manual rio rancho, nm the lecnet 2 product family includes a variety of com- ponents to address a wide variety of applications. Differ- ent processor models interface with the digital matrix in different manners. Four basic matrix processor models are available: • dm812 8 in/12 out • dm161...

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    Dmpa12 digital power amplifier lectrosonics, inc. Two dmpa12 units configured as master and slave at top of stack to handle up to 24 outputs slave slave slave slave slave expansion a b tx rx rx tx expansion a b tx rx rx tx expansion a b tx rx rx tx expansion a b tx rx rx tx expansion a b tx rx rx tx...

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    Reference manual rio rancho, nm sharc is a registered trademark of analog devices, inc. Usb port rs-232 port prog i/o port micro controller prog i/o conn db25 lecnet 2 conn 1/8 '' jack front & rear usb b conn control signals 8 11 12 a/d output volume control pots 12 tx tx rx rx digital audio network...

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    Dmpa12 digital power amplifier lectrosonics, inc. 10 output processing extensive signal processing is available at each output, adding to the processing available in the mixer/proces- sors in the system. This is especially useful when a variety of loudspeaker types are being used. Output source sele...

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    Reference manual rio rancho, nm 11 dmpa12 controls and features front panel usb ports standard usb connectors are provided on front and rear panels for setup and control of the dm from a computer using a windows vista, xp or 2000* operating system. Mode switch the mode switch is used for two purpose...

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    Dmpa12 digital power amplifier lectrosonics, inc. 12 rear panel power plug standard nema 5-15 three-pin power plug capable of accepting 100-240 vac, 47-63 hz. Rs-232 port standard usb connector for setup and control of the dm from a computer using a windows vista, xp or 2000* operating system. Usb p...

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    Reference manual rio rancho, nm 1 installing lecnet2 software and usb driver part of the lecnet2 software package is the control panels for the dmpa12. This graphic user interface (gui) is designed to allow easy setup and monitoring of the dmpa12 using a computer system running win- dows vista, xp o...

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    Dmpa12 digital power amplifier lectrosonics, inc. 1 installing additional dm units (or lecnet2 devices) the windows xp operating system regards all lec- net2 devices as separate usb devices because each has a unique serial number. Because of this, windows xp will want to install the usb driver every...

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    Reference manual rio rancho, nm 1 4. When the driver installation is complete, the final page of the wizard appears. Click finish. Usb driver installation (windows 2000) - subsequent installations once the lecnet2 ™ usb driver is installed in a windows ® 2000 system device, subsequent lectnet2 usb d...

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    Dmpa12 digital power amplifier lectrosonics, inc. 1 using the update wizard the control panel can be used to download firmware updates to the dmpa12. The update wizard guides you through the steps of the update process. Since a failed firmware update can leave the dmpa12 in an unus- able state, it i...

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    Reference manual rio rancho, nm 1 the entire process will take 15 minutes or so. A notification message appears when the update is finished. Follow the instructions in the message to verify that the dmpa12 restarts with the updated firmware version. At this point the process is complete and the wiza...

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    Dmpa12 digital power amplifier lectrosonics, inc. 1 initial setup the initial setup of a dmpa12 system is a simple four step process: • set the unit to the master mode, if necessary • connect the unit to the computer • select the signal source using the gui • set the gain / level using the gui lecne...

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    Reference manual rio rancho, nm 1 activity tab the activity tab provides an “at a glance” monitoring of output levels, when the amplifier is connected to a computer system. This dynamic display indicates audio signal levels at each output and the state of compressor and limiter activity. Dmpa12 syst...

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    Dmpa12 digital power amplifier lectrosonics, inc. 20 source tab the controls on this tab allow the selection of a signal source for each of the output channels. Normally, the channel is fed a forward or back propagated signal from either the main matrix or the expansion matrix. The dmpa12 also conta...

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    Reference manual rio rancho, nm 21 delay tab select the delay tab. Each output channel can be delayed for up to 200 ms, enough for virtually any application. If connected to a dmpa12, changes made in this tab take effect immediately. As always, the changes are not perma- nent unless the dmpa12 setti...

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    Dmpa12 digital power amplifier lectrosonics, inc. 22 filters tab select the filters tab. A bank of 9 parametric filters is available on each output channel, offering unusual flexibility in system design. Any or all may be used, and can be individually configured as one of 6 different filter types. T...

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    Reference manual rio rancho, nm 2 setup parameters for the entire filter set belonging to an output channel can be copied and pasted into another output channel also. This can save a lot of time when multiple output channels need the same filter set. There are two ways to do this: right click somewh...

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    Dmpa12 digital power amplifier lectrosonics, inc. 2 compressor tab a high quality compressor can be set up to control the dynamics of an output signal. This is a “soft” knee type with adjustable compression ratio, threshold and time constant parameters.The compressor implementation is based on an rm...

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    Reference manual rio rancho, nm 2 amplitude response graph each output channel page contains a graph which dis- plays four plots: • a fixed plot for the 1:1 amplitude response used for reference (dashed grey line) • the amplitude response of the compressor (orange line) • the amplitude response of t...

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    Dmpa12 digital power amplifier lectrosonics, inc. 2 gain / level tab if connected to a dmpa12, changes made in this tab take effect immediately. As always, the changes are not permanent unless the dmpa12 settings are stored to a preset in nonvolatile memory. Besides the main gain setting stored in t...

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    Reference manual rio rancho, nm 2 level meter this is a true rms level meter which displays the out- put audio level in dbu after digital signal processing is complete. The range of the meter is -40dbu to +20dbu, referenced to the internal voltage scale prior to digital to analog conversion and powe...

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    Dmpa12 digital power amplifier lectrosonics, inc. 2 limiter tab the limiter implementation is based on an rms level detector controlled by a single time constant param- eter. This is an adaptive design which responds to varying rates of change in the signal level by dynami- cally adjusting the attac...

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    Reference manual rio rancho, nm 2 at times it may be necessary to restore limiter settings to their default values (+15dbu threshold, with default time constant). To do this right click within the limiter setup group and choose set to default values from the popup menu. Amplitude response graph each...

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    Dmpa12 digital power amplifier lectrosonics, inc. 0 programmable inputs notebook settings for the 11 programmable inputs are contained within a notebook, with one page per programmable input. The tabs along the bottom of the notebook are used to select one of the programmable inputs for setup. To se...

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    Reference manual rio rancho, nm 1 inc output rp gain 1db (io) this function increments the rear panel gain of one or more audio outputs in response to a contact closure. This is normally used with a momentary contact switch. The range over which the gain of the audio output chan- nels is allowed to ...

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    Dmpa12 digital power amplifier lectrosonics, inc. 2 programmable outputs notebook settings for the 8 programmable outputs are contained within a notebook, with one page per programmable output. The tabs along the bottom of the notebook are used to select one of the programmable outputs for setup. To...

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    Reference manual rio rancho, nm programmable outputs notebook pulldown invert status checkbox programmable input selection programmable output status indicators.

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    Dmpa12 digital power amplifier lectrosonics, inc. Setting the front panel gain control mute status choose device setup->front panel gain control mute from the menu bar. The front panel gain control mute dialog will open: use the mouse to enable (or disable) front panel mute for the channel of intere...

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    Reference manual rio rancho, nm editing output labels output channels may be assigned a custom label to make it easier to understand a complex setup. For example, labels like zone 1 or “hallway” might usefully replace the default labels ch 1, ch 2, etc on output channels. Channel labels are limited ...

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    Dmpa12 digital power amplifier lectrosonics, inc. Dmpa12 serial interface and general commands dmpa12 general commands command description actpre active preset number baud serial port baud rate default set a memory preset to factory defaults defpre location of the memory preset recalled on powerup d...

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    Reference manual rio rancho, nm defpre (default preset) this command may be used as a query to determine the memory preset location used as the powerup de- fault. It may also be used as an update to set the default preset. The data is an integer type in the range 0 to 24, where 0 has the special mea...

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    Dmpa12 digital power amplifier lectrosonics, inc. Macroti (macro title) this command may be used as a query to read the title of a macro, or as an update to set the title. The macro is specified by using the address syntax. Addresses must be in the range 1 to 128. The data type is string, with a lim...

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    Reference manual rio rancho, nm of 3”. The data type is array of integer, of size two. The first value indicates the position of the unit, the second indicates the number of devices in the chain. Example: request response query rank? Ok {1,2} recall (recall preset) this command may be used to recall...

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    Dmpa12 digital power amplifier lectrosonics, inc. 0 dmpa12 audio output commands command description outdel audio output delay outfault audio output fault status outgn audio output gain outgnfp audio output front panel gain outiv audio output phase invert outlb audio output channel label outlv audio...

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    Reference manual rio rancho, nm 1 outgnfp (output front panel gain) this command may be used as a query to read the output channel front panel gain, which is controlled by the knobs on the dmpa12 front panel. The output chan- nel is specified by using the address syntax. Addresses must be in the ran...

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    Dmpa12 digital power amplifier lectrosonics, inc. 2 outmttog (output mute toggle) this command may be used as a simple comand to toggle the output channel mute status. The output chan- nel is specified by using the address syntax. Addresses must be in the range 1 to 12. Examples: request response co...

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    Reference manual rio rancho, nm dmpa12 output compressor commands command description outcpgn output compressor gain outcpmug output compressor makeup gain outcprat output compressor ratio outcptc output compressor time constant outcpthr output compressor threshold level termination: all commands ar...

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    Dmpa12 digital power amplifier lectrosonics, inc. Dmpa12 output limiter commands command description outlmgn output limiter gain outlmtc output limiter time constant outlmthr output limiter threshold level termination: all commands are terminated with an ascii carriage return character (hex code 0x0...

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    Reference manual rio rancho, nm dmpa12 programmable i/o commands command description prgin programmable input state prgindef programmable input definition prginundef programmable input un-definition prgout programmable output state prgoutdef programmable output definition prgoutiv programmable outpu...

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    Dmpa12 digital power amplifier lectrosonics, inc. • the remaining values specify the target of the function. These values are simply a list of one or more integers which identifies the thing(s) that are controlled by the function. The interpretation of the target values depends on the function that ...

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    Reference manual rio rancho, nm using the address syntax. Addresses must be in the range 1 to 8. The data type is array of integer, with a variable length. The values contained in the array repre- sent the definition of a programmable output, using the following scheme: the first integer is a code t...

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    Dmpa12 digital power amplifier lectrosonics, inc. Dmpa12 front panel control command description fplock front panel control lock fpgnran front panel control gain range fpmten front panel mute enable fpmuted front panel mute status termination: all commands are terminated with an ascii carriage retur...

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    Reference manual rio rancho, nm fpmten (front panel mute enable) this command may be used as a query to deter- mine the status of the front panel mute feature of the dmpa12. It may also be used as an update to set en- able or disable this feature. If enabled, placing a front panel gain control in th...

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    Dmpa12 digital power amplifier lectrosonics, inc. 0 dmpa12 rear panel control commands command description rpoutgn rear panel audio output gain rpoutgnmin rear panel audio output gain minimum rpoutgnpre rear panel audio output gain preset rpoutgnst rear panel audio output gain step rpsave save rear ...

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    Reference manual rio rancho, nm 1 rpoutgnst (rear panel output gain step change) this command is used as an update to step the gain by the amount specified, either up or down. The out- put channel is specified by using the address syntax. Addresses must be in the range 1 to12. The data type is integ...

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    Dmpa12 digital power amplifier lectrosonics, inc. 2 augmented bnf[1] rules for the lecnet2 command grammar: octet = %x00-ff ; char = %x01-7f ; any us-ascii character except nul (1 - 127) upalpha = %x41-5a ; any us-ascii uppercase letter “a”..”z” loalpha = %x61-7a ; any us-ascii lowercase letter “a”....

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    Reference manual rio rancho, nm macros and macro control the dmpa12 can be remotely controlled using com- mands sent over usb, a serial port, or a network con- nection. An extensive text-based command language is defined for the dmpa12. Touch panel controllers, for instance, use this command interfa...

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    Dmpa12 digital power amplifier lectrosonics, inc. Rear panel control with hardware the dmpa12 processor has programmable inputs which can be used to control a wide variety of functions. Depending on the function assigned to them, these programmable inputs may be connected to momentary contact switch...

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    Reference manual rio rancho, nm.

  • Page 56: Limited One Year Warranty

    Dmpa12 digital power amplifier lectrosonics, inc. 2 may 2007 limited one year warranty the equipment is warranted for one year from date of purchase against defects in materials or workmanship provided it was purchased from an authorized dealer. This warranty does not cover equipment which has been ...