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QuickMedia™ Receiver/Processor                      Crestron 

QM-RMCRX-BA 

 

Auto Compensation with a Self-Peaking Receiver 

 

Crestron's innovative self-peaking audio circuit eliminates the need to peak the 
audio signal.  

Without self-peaking the same peak and boost values are applied equally to the 
video and audio signals. When these signals travel the same path, this 
arrangement is satisfactory. However, when video and audio travel to a receiver 
from different paths, unequal cable lengths are created. The self-peaking feature 
eliminates the need to hunt for peak and boost values by allowing the receiver to 
read the ID, input compensation and microphone EQ from the audio channel 
regardless of the peaking and boost values applied. Then using the transmitter 
ID, the receiver recalls the preset containing the proper peak and boost settings 
for the video, and implements the correct input compensation and microphone 
EQ settings. 

NOTE:

 QM devices that do not have self-peaking include:  

     

  QM-RMCRX 

     

  QM-MD7x2 

     

  QM-MD5x1 

     

  TPMC-15-QM 

     

  TPMC-17-QM 

Switchers 

The QM-MD7x2 and the QM-MD5x1 terminate and re-initialize the audio path 
within the unit, however, they pass on the video untouched. This creates 
different path lengths for the video and audio. This difference in path length 
creates different peak and boost levels for audio and video. In the initial QM 
receivers the video and audio circuits, peak/boost have the same settings for the 
audio and video. The initial QM receivers cannot accommodate different 
settings, and may experience difficulties resolving the signals.  

The QM-MD8x8 and QM-MD4x2 are simply analog switches. When audio-
breakaway is implemented, the audio and video paths are likely to be different. 
For receivers without self-peaking audio, a probable conflict exists.  For 
receivers with self-peaking, auto compensation is still problematic when audio-
breakaway is done since the transmitter ID is that of the audio source and the 
video source is from a different device with a different transmitter ID. 

The self-peaking audio circuit resolves the problem of unequal cable lengths. 
Because no audio setting is required, the video can have an independent 
peak/boost as set by the program.  

QM-AE Audio Extractor 

The QM-AE is an audio-only device. The QM cable loops through the QM-AE 
from the input connector to the output connector. The QM-AE taps only the 
audio signals of the QM cable. The QM-AE is a self-peaking receiver, so 
peaking is not required.  

66 

 QuickMedia™ Receiver/Processor: QM-RMCRX-BA  

Operations Guide - DOC. 6332 

Summary of Contents for QM-RMCRX-BA

Page 1: ...Crestron QM RMCRX BA QuickMedia Receiver Processor Operations Guide...

Page 2: ...by the Technical Documentation department at Crestron Electronics Inc 15 Volvo Drive Rockleigh NJ 07647 1 888 CRESTRON All brand names product names and trademarks are the property of their respectiv...

Page 3: ...RX BA 28 Earliest Version Software Requirements for the PC 28 Configuring with Crestron SystemBuilder 28 Creating a QuickMedia System in SystemBuilder 29 Audio and Video Adjustments 32 Setting Network...

Page 4: ......

Page 5: ...ammable via the hundreds of IR device drivers available in the Crestron database Four digital input ports for direct connection of power sensors pressure sensors door sensors room occupancy sensor etc...

Page 6: ...peech output One 20 watt stereo output 10 W per channel with built in volume bass and treble controls The QM RMCRX BA QuickMedia Receiver Processor features onboard professional digital audio processi...

Page 7: ...as a master controller but may also be used as a slave Refer to Master Slave Modes in the latest version of the Crestron 2 Series Control Systems Reference Guide Doc 6256 available from the Crestron...

Page 8: ...ds such as IMAP mail and LDAP directory access For a security standard such as SSL to work the browser and the Web server must both be configured to use it SSL works by creating a temporary shared key...

Page 9: ...over long distances and the amount of available skew compensation A cable rated at 15 ns of skew per 100 meters 328 ft means that a cable will have no more than a 15 ns difference between the fastest...

Page 10: ...s This enables the QuickMedia receiver processor to seamlessly pass along the three different video types to the display and alert the display to switch inputs In addition the display device should su...

Page 11: ...t S VIDEO One mini DIN 4 pin connector for S video output RGBHV One D15HD female connector for RGBHV output AUDIO One 9 pin connector for balanced unbalanced line level left right and speech audio out...

Page 12: ...B to 20 dB unbalanced input output Bass Treble Controls 15 dB Selectable Equalization 3 band graphic plus 9 band parametric EQ 5 band graphic plus 7 band parametric EQ 5 band graphic plus 7 band param...

Page 13: ...Crestron QM RMCRX BA QuickMedia Receiver Processor QM RMCRX BA Rear View Physical Dimensions Operations Guide DOC 6332 QuickMedia Receiver Processor QM RMCRX BA 9...

Page 14: ...wer to the QM RMCRX BA from an external power pack included CAUTION Use only Crestron power supplies for Crestron equipment Failure to do so could cause equipment damage or void the Crestron warranty...

Page 15: ...NC type connector is provided for composite video output Composite video is a type of video signal in which all of the video information the red green and blue horizontal and vertical sync signals are...

Page 16: ...s IR emitters splitters receivers and remote control transmitters may be required Infrared output is rated up to 1 2 MHz Serial protocol is one way RS 232 COM B COM A COM A B These two DB9 male softwa...

Page 17: ...ates input activity PWR Power This green LED illuminates when the unit is connected to and receives 24 VDC power from an external power pack or from Cresnet ACT LAN This yellow activity LED illuminate...

Page 18: ...M RMCRX BA has 36 MB of built in memory non volatile and volatile The total of 36 MB is specified as follows 4 MB flash non volatile 32 MB SDRAM volatile and 256 KB NVRAM battery backed up Flash memor...

Page 19: ...particular Cresnet run the length of the run and the Cresnet power usage of each network unit to be connected must be taken into consideration If Cresnet units are to be daisy chained on the run the...

Page 20: ...y be necessary to add a Cresnet Hub Repeater CNXHUB to maintain signal quality throughout the network Also for networks with lengthy cable runs or varying types of network devices it may be desirable...

Page 21: ...ironmental temperature range listed in the specifications table Consideration must be given if installed in a closed or multi unit rack assembly since the operating ambient temperature of the rack env...

Page 22: ...tions NOTE COM B is shared for device control and serial console connection NOTE Use either the internal amplifier SPEAKER output or the AUDIO left and right line outputs but not both Using both induc...

Page 23: ...quipment damage or void the warranty NOTE Use care in wiring installations to avoid applying 24 VDC power to Cresnet wiring from an external power pack as well as from a system device that contains it...

Page 24: ...ishing Communications with the Control System in the latest version of the 2 Series Control Systems Reference Guide Doc 6256 The following connections are unique to the QM RMCRX BA Serial Connection C...

Page 25: ...ata bits 8 Number of stop bits 1 Hardware handshaking RTS CTS enabled Software handshaking XON XOFF not enabled 2 After setting the correct parameters click OK to return to the Crestron Toolbox main w...

Page 26: ...O PIN SIGNAL 1 White Orange Tx 1 Tx 2 Orange Tx 2 Tx 3 White Green Rc 3 Rc 6 Green Rc 6 Rc RJ 45 Crossover Cable For Direct PC Connection FROM PIN COLOR SIGNAL TO PIN SIGNAL 1 White Orange Rc 3 Tx 2 O...

Page 27: ...ult Crestron Terminal Port CTP is 41795 NOTE Default Ethernet Ports 80 Web 41794 Crestron Com 41795 Toolbox Debug 3 After setting the correct parameters click OK to return to the Crestron Toolbox main...

Page 28: ...ressing F10 or selecting Functions 2 Series Hard Reset in Toolbox for the master control system may cause errors if both the program and the console mode are using the same COM port For more informati...

Page 29: ...from the control system Press and hold the SW R button on the front panel of the QM RMCRX BA Reapply power to the control system while still holding the SW R button The Toolbox console should display...

Page 30: ...ID can be changed using Crestron Toolbox The software ID must match the hardware ID and is changed using SystemBuilder page 36 NOTE When in slave mode the QM RMCRX BA cannot address any Cresnet devic...

Page 31: ...ctions Menu 3 Select the new Net ID from the pull down list Ensure that the new hardware ID agrees with the ID assigned in SystemBuilder and is not a duplicate Cresnet Toolbox Cresnet ID Change Window...

Page 32: ...n dealers and Crestron Authorized Independent Programmers CAIP only New users are required to register to obtain access to certain areas of the site including the FTP site NOTE For SIMPL windows infor...

Page 33: ...served when you reenter SystemBuilder SystemBuilder After entering the appropriate information in each step SystemBuilder creates the control system logic and touchpanel pages ready to upload to the c...

Page 34: ...select any 2 Series control processor as the master Additional QM RMCRX BAs added to the system are automatically assigned a slave ID 03 and above as they are added SystemBuilder Select a Control Pro...

Page 35: ...library on the right to the system on the left they are automatically assigned sequential Net IDs SystemBuilder System View 7 Setup QM network cable routing Right click on the connector and select th...

Page 36: ...e five sections for audio and video setup Mixer Settings The first selection is the mixer where the program left program right and speech mixer settings are made The sliders control the level from 80...

Page 37: ...cessor SystemBuilder Mixer Adjustments Volume Settings Volume for speech and program are adjusted for the internal amplifier using this screen SystemBuilder Volume Controls Operations Guide DOC 6332 Q...

Page 38: ...restron QM RMCRX BA Output Graphic EQ SystemBuilder provides independent graphic equalization for speech program left and program right audio Output Graphic EQ 34 QuickMedia Receiver Processor QM RMCR...

Page 39: ...le Parametric EQ Video Settings SystemBuilder software is also used to adjust the video peaking boost and skew of a QM system Peaking boost and skew are all used to compensate for cable length The fir...

Page 40: ...k and boost again If they are unstable check for induced noise If you see any color outlines return to the skew adjustment If the lines appear smeared return to the peaking and boost adjustments If th...

Page 41: ...to the device in the network tree on the right Right click a device the program tree on the left and select Setup from the sub menu Right click on a device in the network tree on the right and set the...

Page 42: ...ious Press and release HW R button then hold SW R to bypass the program Also refer to Troubleshooting Communications on page 24 Various Refer to the System Monitor procedure following this table Syste...

Page 43: ...dio mic output Incorrect peak setting Adjust peak control until audio is restored System Monitor Mode The System Monitor allows you to reload firmware into the QM RMCRX BA in the event that you cannot...

Page 44: ...te specific information or have questions after reviewing this guide please take advantage of Crestron s award winning customer service team by calling the Crestron corporate headquarters at 1 888 CRE...

Page 45: ...he Crestron Database these tools provide you with the essential components you need to program the QM RMCRX BA Crestron software is available from the Crestron website registration is required for dow...

Page 46: ...IR port on the QM RMCRX BA rear panel This port can handle a single IRP2 that can be attached to a single IR device The ST SPL resistor divider can be used to split the one infrared IR port into five...

Page 47: ...re to ground Slot 3 C2I RMC COM2 232 Port A and Port B The C2I RMC COM2 232 provides two COM ports A and B for controlling serial devices over RS 232 Each COM port has a built in two way serial driver...

Page 48: ...st to Send pin on the COM port for as long as the input is high If this signal is used then the Hardware Handshaking option must be set to None in the Device Settings Normally this signal would not be...

Page 49: ...he software that a remote device is calling Slot 4 C2QENET 1 C2ZQ Ethernet The C2QENET 1 built in network interface card provides one LAN port with an RJ 45 connector for connecting the QM RMCRX BA to...

Page 50: ...skew values together with peaking and boost Each skew preset applies to the cable connection between the QM RMCRX BA and a specific QM transmitter During normal program operation the system will reca...

Page 51: ...ith the peak and boost values into the preset number given by SkewPreset or when auto compensation is enabled into the currently selected skew preset The preset is saved when the input is held high Hi...

Page 52: ...No source 1d RGB RGBHV output 2d Composite VIDEO output 3d S Video S VIDEO output 4d Enable VIDEO and S VIDEO outputs A value of 4d will a Switch a composite source to the VIDEO output and an S video...

Page 53: ...pin balanced unbalanced line level audio output labeled AUDIO with three channels labeled L R and SPCH The Mixer module can mix the four input channels into any output channel In addition an onboard...

Page 54: ...QuickMedia Receiver Processor Crestron QM RMCRX BA Detail View of Audio Mixer 50 QuickMedia Receiver Processor QM RMCRX BA Operations Guide DOC 6332...

Page 55: ...the input is held high Recalling a preset applies eight EQ trims four trims each for MIC 1 and MIC 2 at 160Hz 500Hz 1 2kHz and 3kHz High 1 level sensitive Recall mic EQ preset Low 0 No preset recall...

Page 56: ...og output LeftToMicMixOut_F Indicates the current mixing level being applied to LEFT IN on the AUDIO SPCH channel Analog input RightToMicMixOut Sets the RIGHT IN mixing level on the AUDIO SPCH channel...

Page 57: ...t LeftInToPgmLeft_F Indicates the current mixing level being applied to LEFT IN on the AUDIO L channel Analog input RightInToPgmLeft Sets the RIGHT IN mixing level on the AUDIO L channel RIGHT IN is m...

Page 58: ...evel to the minimum or maximum value Analog output LeftInToPgmRight_F Indicates the current mixing level being applied to LEFT IN on the AUDIO R channel Analog input RightInToPgmRight Sets the RIGHT I...

Page 59: ...ceives four channels of digital audio as follows The two channels of stereo program audio are referred to as LEFT and RIGHT The two microphone channels are referred to as MIC 1 and MIC 2 The unit prov...

Page 60: ...High 1 level sensitive Amplifier on Low 0 Amplifier off Digital output AmplifierPwr F Indicates the power status of the SPEAKER output High 1 Amplifier is on Low 0 Amplifier is off Digital input Mute...

Page 61: ...Save compensation preset Low 0 No preset save Digital input RecallCompPreset This signal has NO effect if automatic audio compensation is enabled Recalls the source gain compensation preset given by...

Page 62: ...t is held high Valid analog values range from 100d 10dB to 100d 10dB adjustable in increments of 0 1dB 1d 0 1dB A value of 0d 0dB means that the signal will pass unaffected Out of range values will cl...

Page 63: ...SPCH channels to the trim preset given by TrimPreset when the input is held high The trims are set by the TrimBand analogs High 1 level sensitive Save trim preset Low 0 No trim preset save Digital in...

Page 64: ...log inputs MicTrimBand1 through MicTrimBand10 Sets the 10 trim values for the AUDIO SPCH channel Valid analog values range from 120d 12dB to 120d 12dB adjustable in increments of 0 1dB 1d 0 1dB A trim...

Page 65: ...l be recalled and applied to the outputs Valid values for FilterPreset range from 1 to 6 If RecallFilterPreset goes high and FilterPreset is set to an invalid value out of the 1 to 6 range all filters...

Page 66: ...n this way the compiler can resolve any ambiguous signals in the modules and minimize errors when the larger program is converted NOTE Signals on digital I O port may not transfer to digital input por...

Page 67: ...help file provides a full listing of console commands that are valid for 2 Series control systems You can access the QM RMCRX BA console in a variety of ways via a serial connection RS 232 with a PC...

Page 68: ...re information on console commands refer to the 2 Series Console Command Reference Guide Doc 6002 The latest version can be obtained from the Crestron website SIMPL Windows Preferences Window 64 Quick...

Page 69: ...device in a network requires a specific amount of compensation Manual Compensation In a manual compensation system the compensation parameters along with microphone equalization settings are stored in...

Page 70: ...d This creates different path lengths for the video and audio This difference in path length creates different peak and boost levels for audio and video In the initial QM receivers the video and audio...

Page 71: ...xes are not included because the audio and video cable lengths are always equal KEY 9 Good operation 1 Operation depends on video rates and if the audio and video cable lengths are closely matched 2 I...

Page 72: ...the audio and video cable lengths match Device with self peaking Manual Compensation without Audio Breakaway QM RECEIVERS QM RMCRX QM RMCRX BA QM RXA QM MD7x2 QM MD5x1 QM AE QM RX TPMC QM MD8x8 9 9 9...

Page 73: ...ands data or instructions from or to another computer b for local campus or wide area network internet or web hosting services or c pursuant to any rental sharing or service bureau arrangement The Sof...

Page 74: ...ninety 90 days from the date of receipt and b that any hardware accompanying the Software will be subject to its own limited warranty as stated in its accompanying written material Crestron shall at i...

Page 75: ...scent lamps are not covered This warranty extends to products purchased directly from CRESTRON or an authorized CRESTRON dealer Purchasers should inquire of the dealer regarding the nature and extent...

Page 76: ...Crestron Electronics Inc Operations Guide DOC 6332 15 Volvo Drive Rockleigh NJ 07647 2011912 Tel 888 CRESTRON 05 05 Fax 201 767 7576 Specifications subject to www crestron com change without notice...

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