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Kramer AFM-20DSP, Руководство пользователя

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Kramer Electronics Ltd. 

 

AFM-20DSP 

– Introduction 

2 

 

 

Warning: 

•

 Use only the power cord that is supplied with the device. 

•

 Before installation, disconnect the power and unplug the device from the wall.

 

•

 Do not open the device. High voltages can cause electrical shock! Servicing by 

qualified personnel only. 

•

 To ensure continuous risk protection, replace fuses only according to the rating 

specified on the product label located on the bottom of the device.

 

 

Recycling Kramer Products 

The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC aims to reduce 
the amount of WEEE sent for disposal to landfill or incineration by requiring it to be collected 
and recycled. To comply with the WEEE Directive, Kramer Electronics has made 
arrangements with the European Advanced Recycling Network (EARN) and will cover any 
costs of treatment, recycling and recovery of waste Kramer Electronics branded equipment on 
arrival at the EARN facility. For details of Kramer’s recycling arrangements in your particular 
country go to our recycling pages at 

https://www.kramerav.com/il/quality/environment

. 

Overview 

Congratulations on purchasing your Kramer device 20-port matrix device.  

Each model listed in this User Manual is a high-performance, multi-channel DSP, professional 
audio matrix switcher with 20 analog ports that can be configured as inputs or outputs 
according to preset I/O configurations. In addition, each device includes a comprehensive and 
user-friendly graphic interface that makes configuring every detail of your audio system 
intuitive and easy. 

AFM-20DSP

 includes multi-channel DSP, built-i

n 2x60W@8Ω and 1x120W@70V / 100V 

power amplifier, 4x4 Dante interface, HDMI

™ embedding and de-embedding, and S/PDIF. 

AFM-20DSP-LE

 (Lite Edition), 

is a “lite” version of 

AFM-20DSP

 without Dante, HDMI, AMP, 

and S/PDIF. 

AFM-20DSP-AEC

 (Acoustic Echo Cancellation), the device expands the 

AFM-20DSP

 

capabilities with the addition of Echo Cancellation, Noise Reduction, Comfort Noise 
Generation, and an USB type B port.  

The following table shows the features of each device: 

Device Name 

Maestro  Flex I/O  Dante 

HDMI  Amp 

S/PDIF 

AEC 

USB 

AFM-20DSP

  

Yes 

Yes 

Yes 

Yes 

Yes 

Yes 

No  

No  

AFM-20DSP-LE

 

Yes 

Yes 

No 

No 

No 

No 

No 

No 

AFM-20DSP-AEC

  Yes 

Yes 

Yes 

Yes 

Yes 

Yes 

Yes 

Yes 

 

  

Содержание AFM-20DSP

Страница 1: ...P N 2900 301204 Rev 3 www kramerAV com USER MANUAL MODELS AFM 20DSP AFM 20DSP LE AFM 20DSP AEC 20 Port Audio Matrix...

Страница 2: ...nking Analog Inputs and Outputs 23 Processing a Signal 24 Routing Inputs to Outputs 37 Mixing Audio Signals 41 Defining Audio Settings 44 Defining Video Settings 45 Defining AEC Settings 46 Auto Mixer...

Страница 3: ...om downloads AFM 20DSP AEC Achieving the Best Performance Use only quality connection cables We recommend Kramer high performance high resolution cables to avoid interference deterioration in signal q...

Страница 4: ...to our recycling pages at https www kramerav com il quality environment Overview Congratulations on purchasing your Kramer device 20 port matrix device Each model listed in this User Manual is a high...

Страница 5: ...orts up to 10 global presets per I O configuration plus 10 mixer snapshot presets Audio de embedding is for AFM 20DSP and AFM 20DSP AEC only It de embeds the audio signal from the HDMI input for routi...

Страница 6: ...any of the ports to the power amplifier AFM 20DSP LE use the default 12 x8 I O matrix configuration or select one of the preset analog I O configurations AFM 20DSP AEC use the USB audio as a stereo s...

Страница 7: ...when an input signal is present and the port is defined as line in White when defined as line out Blue when defined as mic in Red when in clipping state Orange when in limiting state Off when there i...

Страница 8: ...M 20DSP can process the USB audio as a stereo speaker or operate as an audio line in or microphone for an audio recorder application or call conferencing When the AFM 20DSP is connected to a computer...

Страница 9: ...akers Dante PoE RJ 45 Port Connect to Dante audio via the network Provides 4 Tx channels and 4 Rx channels By default DHCP is enabled RS 232 3 pin Terminal Block Connector Connect to a PC serial contr...

Страница 10: ...connecting any cables or power Warning Ensure that the environment such as maximum ambient temperature and air flow is compatible for the device Avoid uneven mechanical loading Appropriate considerat...

Страница 11: ...ct it to the AFM 20DSP After connecting your AFM 20DSP connect its power and then switch on the power to each device Figure 6 Connecting to the AFM 20DSP Rear Panel To connect AFM 20DSP as illustrated...

Страница 12: ...nd COM terminal blocks to the and terminals of a mono speaker for example the Galil 8 C ceiling speakers daisy chained The speakers either output the left side L L of the audio input or the stereo inp...

Страница 13: ...aler to port 10 An MP3 player to ports 11 and 12 2 Connect the PORT balanced mono 3 pin terminal block connectors port I O is set to 12x8 in this example to the following audio acceptors Ports 13 and...

Страница 14: ...no 3 pin terminal block connectors port I O is set to 12x8 in this example Microphones to ports 1 to 9 The audio output of the Kramer VP 444 scaler to port 10 An MP3 player to ports 11 and 12 2 Connec...

Страница 15: ...ceiling speakers daisy chained The speakers either output the left side L L of the audio input or the stereo input reduced to a mono signal see Defining Audio Settings on page 44 For Lo Z connection c...

Страница 16: ...pin terminal block connector allowing the RS 232 to control the AFM 20DSP Connect the RS 232 terminal block on the rear panel of the AFM 20DSP to a PC controller as follows From the RS 232 9 pin D sub...

Страница 17: ...Connecting the Ethernet Port via a Network Hub or Switch on page 17 To connect via a router and your IT system is based on IPv6 speak to your IT department for specific installation instructions Conne...

Страница 18: ...rements of your IT system 5 Click Properties The Internet Protocol Properties window relevant to your IT system opens 6 Select Use the following IP Address for static IP addressing and enter the detai...

Страница 19: ...ing the Ethernet Port via a Network Hub or Switch You can connect the AFM 20DSP Ethernet port to the Ethernet port on a network hub or using a straight through cable with RJ 45 connectors Configuring...

Страница 20: ...not be supported by some cellphone operating systems The AFM 20DSP webpage enables you to Using the Top Status Bar on page 19 Processing Audio Signals on page 22 Routing Inputs to Outputs on page 37 M...

Страница 21: ...he About icon Figure 11 Main Page Navigation List Hidden 5 To set and control the device click the applicable icon in the Navigation List Using the Top Status Bar Use the top status bar to do the foll...

Страница 22: ...tings You can easily disable or enable the webpages security using the lock icon When security is disabled it is not necessary to enter a password to access the webpages For information about the defa...

Страница 23: ...he DSP page shows the inputs that are currently routed to the outputs Clicking an IN or OUT button or a module highlights the routing path Figure 15 Matrix Area Routing Path When opening the processin...

Страница 24: ...y module to open its process view and configure that item The DSP page enables users to do these actions Selecting Output Signals to Route to Amplifier Outputs on page 22 Linking Analog Inputs and Out...

Страница 25: ...19 and output 20 Figure 19 DSP Page Selected Left and Right Amplifier Outputs Linking Analog Inputs and Outputs Users can link analog inputs and outputs in predefined pairs to balance stereo analog so...

Страница 26: ...Reset a configuration knob to its default parameter value by clicking the mouse within the knob area while pressing Ctrl on your keyboard The parameter value always appears below the knob or slider A...

Страница 27: ...Maximum level indicator shows the highest registered level in RMS and can change only if a higher level is detected Click the indicator to reset to the current maximum value 0dBFS refers to the maximu...

Страница 28: ...adjust analog input parameters 1 In the Navigation List click DSP 2 Click IN 1 The IN 1 processing window open Figure 23 Processing View Processing Analog Audio Input 3 Do these actions To Do this To...

Страница 29: ...o input level both sliders are identical Move the volume fader To set the signal volume before and after using the pre matrix modules Select Pre or Post To mute unmute the input audio Click To inverse...

Страница 30: ...e volume is decreased click the Ratio down arrow Note The higher the ratio the more the audio level below the threshold is lowered The Expansion dB indicates the amount of expansion in a dB scale Expa...

Страница 31: ...itz Riley An Infinite Impulse Response IIR filter used in audio crossovers It has a parallel combination of low pass and high pass The filters are usually designed by cascading two Butterworth filters...

Страница 32: ...Figure 27 Processing View AFS Module 3 Click the Off button The AFS module turns on 4 Set each of the 8 bands to dynamic Dyn or fixed Fix depending on the application Figure 28 AFS Module Selecting I...

Страница 33: ...and a whisper which makes the sound seem more natural To adjust the compressor settings 1 In the Navigation List click DSP 2 Click Comp The button turns blue and the Compressor module pane opens 3 Cli...

Страница 34: ...Q The button turns orange and the Equalizer processing page opens 3 Click the Off button The Equalizer module turns on Figure 31 Processing View Equalizer Module 4 Perform the following actions for ea...

Страница 35: ...n processing page opens Figure 33 Processing View Gain Module 3 Do these actions Set gain In necessary click Mute Gain is adjusted Post Matrix Signal Processing AFM 20DSP enables performing post matri...

Страница 36: ...ation on page 25 to understand the function of the slider To adjust the audio outputs 1 In the Navigation List click DSP 2 Click Dante The Dante processing window opens Figure 34 Processing View Proce...

Страница 37: ...he Equalizer module turns on Figure 35 Processing View Processing Output Equalizer 4 Do these actions for each of the eight bands To ignore that band click BYPASS Set the band frequency Hz Set the aud...

Страница 38: ...se the Limiter tool to limit the signal level A limiter can boost the volume of a certain sound To adjust the limiter 1 From the Navigation List click DSP 2 Click Limit The button turns purple and the...

Страница 39: ...cludes only analog inputs and outputs AFM 20DSP enables performing the following functions Connecting Inputs to Outputs on page 37 Setting Cross Point Volume on page 38 Linking Analog Pairs on page 39...

Страница 40: ...Cross Point Selected inputs are routed to selected outputs You can also select an audio signal generator for testing Setting Cross Point Volume Set the cross point volume separately for each in out co...

Страница 41: ...tting Amplifier Outputs To set the amplifier left and right outputs use Matrix or DSP see Selecting Output Signals to Route to Amplifier on page 22 To set amplifier outputs 1 In the Navigation List cl...

Страница 42: ...inputs and outputs To set the USB SPDIF input 1 In the Navigation List click DSP 2 Below Digital Inputs select USB 1 1 The USB 1 1 window opens 3 In the drop down box select either USB B or SPDIF In...

Страница 43: ...s and store recall mixing snapshots via the Mixer AFM 20DSP enables you to do these tasks Defining Input and Output Parameters on page 41 Defining Snapshots on page 42 Defining Input and Output Parame...

Страница 44: ...alog Audio Settings Audio parameters are defined Defining Snapshots To store the current configuration state recall a snapshot set to default or clear a snapshot use Store a snapshot inputs outputs an...

Страница 45: ...buttons turn blue Figure 50 Mixer Page Clearing a Snapshot 3 Select the snapshot to be cleared The snapshot cleared returns to its default values Loading Snapshots To load a snapshot 1 In the Navigati...

Страница 46: ...define audio settings 1 In the Navigation List click A V Settings 2 In the I O Config drop down box select analog input x output configuration click Set 3 In the System Preset drop down box select a...

Страница 47: ...deo pattern if required using the Video tab in the A V Settings page To define video settings 1 In the Navigation List click A V Settings 2 Select Video tab 3 Enter HDMI input and output labels click...

Страница 48: ...Noise Generation Note Far side input is configured into the AEC reference module AEC module uses this Far side configuration as reference to remove echo from the microphones The steps below illustrate...

Страница 49: ...duction Level Set how many dB suppress the noise when Noise Reduction is enabled 40 to 0 Default 10 Double Talk Echo Reduction When both local end mics and far end remote audio sources are present at...

Страница 50: ...5 Below Digital Inputs click USB and select USB 1 1 Figure 54 USB Digital Input Selection 6 In the USB 1 1 window from the drop down box select the USB_B audio channel The DSP now process the USB as...

Страница 51: ...Side Selector Configuration window opens Figure 57 Fare Side Input Selector Configuration 8 In the drop down menu the Far Side Input Selector must be set to the input port that receives the Far Side...

Страница 52: ...g where multiple MICs are in use but only one or a few should be on at any time This module turns on MICs based on their input signal as compared to the level of the other MICs Gain Sharing Auto Mixer...

Страница 53: ...select the first Auto Mixer icon 3 Select the second Auto Mixer icon Figure 61 Auto Mixer option selected As shown in this screenshot the input first goes to the Auto Mixer and then to the Matrix Figu...

Страница 54: ...bring the level up to the Target Output Level When the input above threshold it reduces the gain to bring it back below the Target output Level Figure 63 FAR AGC Settings window FAR AGC Parameters Tar...

Страница 55: ...tion List click Settings 2 Click Restart The device restarts immediately Wait for the device to reload after device restart Note There is no pop up message before the device restarts Resetting the Dev...

Страница 56: ...our device To import export global settings 1 From the Navigation List click Settings 2 In the General tab in the Global System Settings area To import a file click Import select the system setting bi...

Страница 57: ...y password details 2 Click the lower white bar 3 Click OK The Security password has changed Defining Communication Settings To set the AFM 20DSP communication parameters including the IP Address Mask...

Страница 58: ...your browser to reload the page You can read the new IP address from the Communication Settings page Parameters are set Performing Firmware Upgrade To perform AFM 20DSP firmware upgrade use the Upgra...

Страница 59: ...ine triggers that upon an event execute scripts which include a sequence of actions commands which can appear in different scenarios that are carried out via any defined ports Download the Kramer Maes...

Страница 60: ...Kramer Electronics Ltd AFM 20DSP Viewing Device Information 58 Viewing Device Information In the Navigation pane click About to view the AFM 20DSP webpage version and Kramer Electronics Ltd details...

Страница 61: ...nection method to Ethernet When upgrading the firmware select either TCP port or UDP port The latest version of K UPLOAD and installation instructions can be downloaded from our website at www kramera...

Страница 62: ...Balanced Full power 0dBV 0 77Vrms Full power 6dBu 1 54Vrms Phantom Power 48 VDC on off per input Line Level Output Impedance Unbalanced Impedance Balanced 50 50 Frequency Response 20Hz 20kHz 1dB S N R...

Страница 63: ...FM 20DSP LE Technical Specs Inputs Outputs 20 Balanced Mono Audio On 3 pin terminal blocks Ports Mini USB On a female mini USB connector RS 232 On a 3 pin terminal block connector Ethernet On an RJ 45...

Страница 64: ...al Specifications Inputs Outputs 20 Balanced Mono Audio On 3 pin terminal blocks Ports Mini USB On a female mini USB connector RS 232 On a 3 pin terminal block connector Ethernet On an RJ 45 female co...

Страница 65: ...40 to 70 C 40 to 158 F Humidity 10 to 90 RHL non condensing Regulatory Compliance Safety CE Environmental RoHs WEEE Enclosure Size 19 1U Type Aluminum Cooling Fans General Net Dimensions W D H 43 6cm...

Страница 66: ...l type Digital Color bit depth Undefined Display type Monochrome grayscale Screen size 520 x 320 mm 24 0 in Power management Standby Suspend Active off sleep Extension blocs 1 CEA EXT DDC CI n a Color...

Страница 67: ...HDTV 16 9 1 1 1280 x 720p at 60Hz HDTV 16 9 1 1 Native 720 x 480p at 60Hz EDTV 16 9 32 27 720 x 480p at 60Hz EDTV 4 3 8 9 720 x 480i at 60Hz Doublescan 16 9 32 27 720 x 576i at 50Hz Doublescan 16 9 6...

Страница 68: ...Mac II 640 x 480p at 72Hz VESA 640 x 480p at 75Hz VESA 800 x 600p at 56Hz VESA 800 x 600p at 60Hz VESA 800 x 600p at 72Hz VESA 800 x 600p at 75Hz VESA 832 x 624p at 75Hz Apple Mac II 1024 x 768i at 87...

Страница 69: ...erated 10 19 2021 Software revision 2 91 0 1043 Data source File NB improperly installed Operating system 10 0 19042 2 Raw data 00 FF FF FF FF FF FF 00 2D B2 00 12 01 01 01 01 FF 18 01 03 80 34 20 78...

Страница 70: ...Attributes are indicated with pointy brackets and must be separated by a period The command framing varies according to how you interface with the VS 88UT The following figure displays how the comman...

Страница 71: ...ap safe_mode C R FEEDBACK nn CPEDID src_stg src_id dst_type dest_bitmap CR LF nn CPEDID src_stg src_id dst_type dest_bitmap safe_mode CR LF src_type EDID source type usually output 0 Input 1 Output 2...

Страница 72: ...powering on for the changes to take effect COMMAND FACTORY CR FEEDBACK nn FACTORY OK CR LF Reset the device to factory default configuration FACTORY CR FEATURE LIST Get feature state according to the...

Страница 73: ...nn LOGIN ERR 004 CR LF if incorrect password was entered login_level Level of permissions required User or Admin password Predefined password by PASS command Default password is an empty string Set th...

Страница 74: ...FEEDBACK nn NAME machine_name CR LF machine_name String of up to 15 alpha numeric chars can include hyphen not at the beginning or end Set the DNS name of the device to room 442 NAME room 442 CR NAME...

Страница 75: ...use the IP set by the factory or using the NET IP or NET CONFIG command Get DHCP mode for port 1 NET DHCP 1 CR NET DNS Get DNS name server N A NET GATE Set gateway IP A network gateway connects the d...

Страница 76: ...device To avoid locking the port due to a USB bug in Windows disconnect USB connections immediately after running this command If the port was locked disconnect and reconnect the cable to reopen the...

Страница 77: ...d like LDFW Reset the device to complete the process COMMAND UPGRADE CR FEEDBACK nn UPGRADE OK CR LF Perform firmware upgrade UPGRADE CR VERSION Get firmware version number COMMAND VERSION CR FEEDBACK...

Страница 78: ...port number as printed on the front or rear panel signal_type o AUDIO index Indicates a specific channel number when there are multiple channels of the same type audio_level Audio level in dB range b...

Страница 79: ...ked_state CR LF The following attributes comprise the group ID all Caps case sensitive direction_type o IN o OUT group_type o ANALOG_AUDIO group_index The group index 1 3 5 7 9 11 13 15 17 or 19 o Lin...

Страница 80: ...el signal_type o AUDIO index Indicates a specific channel number when there are multiple channels of the same type Set analog audio 13 and Dante 1 cross point level to 25 2dB X MIX LVL OUT ANALOG_A UD...

Страница 81: ...direction_type port_type port_index signa l_type index state CR FEEDBACK nn X MIC TYPE direction_type port_type port_index signal_type index state CR LF The following attributes comprise the signal ID...

Страница 82: ...s comprise the signal ID direction_type o IN o OUT port_type o HDMI port_index The port number as printed on the front or rear panel signal_type o VIDEO index Indicates a specific channel number when...

Страница 83: ...mes related to a specific product selected_id Currently selected option ID option_id Each option has an ID Only one option may be selected at the same time When a specific option is selected all relat...

Страница 84: ...id preset index lock_state o ON o OFF Get lock mixer preset 9 status X PRST LOCK IOCONFIG SYSTEM M IXER 9 CR 01 X PRST CURR IOConfig SYSTEM MIXER 2 Snapshot 201 OFF CR LF X PRST LST Get the preset lis...

Страница 85: ...MIXER preset_id preset index Recall mixer preset 8 X PRST RCL IOCONFIG SYSTEM MI XER 8 CR X PRST RCL LAST Recall LAST preset per type this command just retrieves the last preset loaded from the histo...

Страница 86: ...t IOCONFIG SYSTEM o Snapshot IOCONFIG SYSTEM MIXER preset_id preset index Reset mixer preset 9 X PRST RESET IOCONFIG SYSTEM M IXER 9 CR X PRST SAVED Get SAVED status for a preset type This flag indica...

Страница 87: ...d etc o IOCONFIG SYSTEM MIXER used for a Mixer snapshot of a specific system preset per IOConfig There are 10 MIXER snapshots per System presets in each IOConfig setup Snapshot 1 is the default MIXER...

Страница 88: ...enough space for data firmware FPGA ERR_FS_NOT_ENOUGH_SPACE 11 Not enough space file system ERR_FS_FILE_NOT_EXISTS 12 File does not exist ERR_FS_FILE_CANT_CREATED 13 File can t be created ERR_FS_FILE...

Страница 89: ...or any other party authorized to repair Kramer Electronics products this product must be insured during shipment with the insurance and shipping charges prepaid by you If this product is returned uni...

Страница 90: ...and a list of Kramer distributors visit our website where updates to this user manual may be found We welcome your questions comments and feedback The terms HDMI HDMI High Definition Multimedia Interf...

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