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Reference Monitors User Handbook

27

REFERENCE MONIT

ORS RM-4C8

REFERENCE MONITORS RM-4C8

2

Optional additions to the RM-4C8 include SDI video input expansion cards and Dolby 
Decoding cards, allowing an audio AES group embedded within a 3G, HD or SD-SDI signal 
to be de-embedded and monitored, either with Dolby E and Dolby Digital decoding (RM-
HDE1) or without (RM-HD1).  Or alternatively with Dolby E and Dolby Digital decoding from 
an AES source (RM-E1X from XLRs) or RM-E1B (from BNCs).

For information on operation of the RM-4C8 with the RM-HDE1, RM-E1X and RM-E1B 
expansion cards, please refer to sections 3 and 4.

The RM-4C8 operates from global mains voltages (85-264V AC, 47-63Hz) without 
adjustment.

System Block Diagram

Fig 2-2: Reference Monitor Block Diagram

Содержание Reference Monitors RM Series

Страница 1: ...8 channel inputs dual selectors RM 4C8 HDE1 Reference Monitor RM 4C8 With RM HDE1 Dolby Decoder Card RM 4C8 E1X Reference Monitor RM 4C8 With RM E1X Dolby Decoder Card RM 4C8 E1B Reference Monitor RM...

Страница 2: ...Road Irthlingborough Northants NN9 5QE England Tel 44 0 1933 650 700 Fax 44 0 1933 650 726 Email sales sonifex co uk Website http www sonifex co uk Information in this document is subject to change w...

Страница 3: ...ation 36 Technical Specification RM 4C8 40 RM HD1 Reference Monitor 3G HD SD SDI Expansion Card 45 Technical Specification For RM HD1 46 RM HDE1 Reference Monitor 3G HD SD SDI Dolby E Expansion Card 4...

Страница 4: ...27 Fig 2 3 RM 4C8 Front Panel Controls 28 Fig 2 4 RM 4C8 Rotary Source Selectors 28 Fig 2 5 RM 4C8 Meters 30 Fig 2 6 RM 4C8 DIPSwitch Settings 30 Fig 2 7 German PPM Labelling Options 31 Fig 2 7a Meter...

Страница 5: ...proper maintenance has been carried out to the Goods or any part of the Goods without the Company s prior written consent vi the defect has not arisen from a design made furnished or specified by the...

Страница 6: ...or other term express or implied by statute or otherwise is given by the Company that the Goods are of any particular quality or standard or will enable the Purchaser to attain any particular performa...

Страница 7: ...in protective packaging and should be inspected for damage before use Where an item is found to have transit damage notify the carrier immediately with all the relevant details of the shipment Packing...

Страница 8: ...mportant that the correct rating and type of fuse is used Incorrectly rated fuses could present a possible fire hazard under equipment fault conditions The fuse rating for the Reference Monitor is 230...

Страница 9: ...tralasian 3 pin to IEC lead Fig C Mains Lead Table E g order RM 2S4 UK for a UK IEC lead to be supplied Installation Information Atmosphere The units should be installed in an area that is not subject...

Страница 10: ...cury cadmium hexavalent chromium and halide containing compounds PBB polybrominated biphenyl and PBDE polybrominated diphenyl ether Elimination of these substances will result in more environmentally...

Страница 11: ...ormance is not compromised Anti Vibration A welded and sealed stainless steel case with milled aluminium fascia provides exceptional rigidity and has been used to ensure that there are no extraneous m...

Страница 12: ...stored in non volatile memory which is recalled at power up A universal power supply ensures global voltage operation without adjustment 5 Band Parametric Equalisation Each product in the Reference M...

Страница 13: ...ph meters with a choice of seven accurately modelled scales responses to suit different applications and local preferences A separate phase meter indicates channel correlation or phase error condition...

Страница 14: ...onality are all accessible remotely via both USB and RS232 connections in conjunction with Sonifex SCi software The open control protocol also allows operation with terminal programs or customised app...

Страница 15: ...ry Source selector determines which of the four RM 2S4 or ten RM 2S10 stereo audio inputs in the currently selected Bank is routed to the loudspeakers and metering Turning the selector anticlockwise i...

Страница 16: ...ns are combined ORed and displayed simultaneously Bank Selector Pressing the Source selector knob inwards steps sequentially through all available input Banks groups of stereo inputs Each press flashe...

Страница 17: ...l packet is found but audio data is available then the unit assumes that all channels are active on the currently selected group and the lock indicator is set on Source Presence Indicators RM 2S10 onl...

Страница 18: ...meters i e not affected by front panel signal modifiers through the use of the remote control OPT command see the appropriate section of this manual Several different characteristics are available for...

Страница 19: ...U 0VU ON OFF ON OFF Extended VU 59 to 15VU 18dBu 4VU 0VU OFF ON ON OFF German PPM 54 to 15dBu 15dBu 54dBu 7dBu ON ON ON OFF AES Digital PPM SMPTE RP 0155 52 to 0dBFS 18dBu 20dBFS 0dBFS OFF OFF OFF ON...

Страница 20: ...ase meter is an output meter reflecting exactly what is being heard from the loudspeakers including any front panel signal modifiers that are active A monophonic signal fed to both channels of the sel...

Страница 21: ...be used Inserting a plug into the headphone socket automatically mutes the internal loudspeakers STATUS LED Indicators Fig 1 14 Status LEDs LIMIT indicator The LIMIT indicator illuminates to show that...

Страница 22: ...ted buttons on the front panel Each of the modifiers is operated via an illuminated pushbutton switch with each press of the button toggling the modifier from on to off or vice versa When using the au...

Страница 23: ...e procedure Audio is still present at the headphone and line outputs and the front panel modifiers affect this audio as normal Before this function can be used it must first be enabled through the SCi...

Страница 24: ...will be encoded into M S format before metering and reproduction while an input signal in M S format will be decoded to L R The two processes are identical The M S modifier will affect the loudspeake...

Страница 25: ...e underside of the unit according to the following table Power should be removed from the unit while making changes to the configuration switches and reapplied once the changes are complete Input Gain...

Страница 26: ...l of 18dBu with no extra input gain applied 110 ohm input termination for the AES EBU digital inputs is controlled by the settings of switches 1 2 11 and 12 on Block 2 of the configuration switches as...

Страница 27: ...pin A full scale digital input signal 0dBFS corresponds to the maximum analogue input signal level of 18dBu with no extra input gain applied 110 ohm input termination for the AES EBU digital inputs is...

Страница 28: ...fected by the setting of the front panel audio modifiers with one exception DIM only affects the line level outputs when Variable output level is selected Expansion Port An internal expansion card RM...

Страница 29: ...between the two channels of the currently selected input source remains consistently above 90 degrees for longer than 5 seconds The AES EBU Lock output is a real time non latching status output which...

Страница 30: ...en parity and 1 stop bit XON XOFF flow control is used when necessary Sonifex SCi software when installed on a suitable PC provides straightforward graphical access to all remote control and configura...

Страница 31: ...tary control with indicator LEDs Line Level Outputs Audio Outputs 1 x stereo analogue or AES EBU digital switchable Gain re Selected Input Unity or variable following volume control switchable Maximum...

Страница 32: ...r Butterworth Distortion HF Outputs 0 05 1kHz 3W output Distortion LF Output 0 05 100Hz 6W output Noise More than 80dB below full output Volume Mute to full volume via front panel rotary control Balan...

Страница 33: ...l condition no alarm Control Inputs 1 Mute audio 2 Dim audio 3 Alarm reset Pull to ground to activate inputs Status Indicators LIMIT Indicates loudspeaker protection limiter is active CLIP Indicates i...

Страница 34: ...2S4 SW1 Digital Input Termination Input 1 110 ON Unterminated OFF SW2 Digital Input Termination Input 2 110 ON Unterminated OFF SW3 SW9 Unused SW10 Enable Wordclock Termination disable for units fitt...

Страница 35: ...d OFF SW11 Unused Set to OFF SW12 Unused Set to OFF Equipment Type RM 2S4 Reference Monitor 2 LED meters 4 stereo channel inputs RM 2S10 Reference Monitor 2 LED meters 10 stereo channel inputs Physica...

Страница 36: ...selected sources On the rear panel open collector alarm outputs provide hardware indication of sustained underlevel overlevel phase errors and digital source lock Six illuminated pushbuttons provide...

Страница 37: ...embedded and monitored either with Dolby E and Dolby Digital decoding RM HDE1 or without RM HD1 Or alternatively with Dolby E and Dolby Digital decoding from an AES source RM E1X from XLRs or RM E1B...

Страница 38: ...ed anticlockwise and the right hand selector clockwise rotation in the opposite direction decrements the Source number The currently selected Sources are indicated by illumination of the corresponding...

Страница 39: ...currently selected Bank is stored in non volatile memory and recalled instantly once power is restored When the RM HD1 expansion card is fitted to the RM 4C8 the banks EX A EX B EX C and EX D become...

Страница 40: ...itch Block 1 found on the underside of the unit according to the following table Fig 2 6 RM 4C8 DIPSwitch Settings Note that power should be removed from the unit while making changes to the configura...

Страница 41: ...52 to 0dBFS 18dBu 20dBFS 0dBFS OFF OFF OFF ON With 0dB of input gain selected May be BBC or EBU PPM depending on choice of scale plate With 0dB input gain SW6 and SW7 off Meter Labelling Each meter ch...

Страница 42: ...including any front panel signal Modifiers that are active If both selected Sources carry the same signal a correlation of 1 0 will result while inverting one channel making it perfectly out of phase...

Страница 43: ...T indicator illuminates to show that the loudspeaker protection limiter has been activated This happens in response to excessive volume levels which are a product of input signal level and the setting...

Страница 44: ...pplied in the following order first last Phase invert Mono S D Dim Cut L R When mains power is removed the status of the audio modifiers is stored in non volatile memory and recalled instantly once po...

Страница 45: ...the headphone and speakers and the front panel modifiers affect this audio as normal Before this function can be used it must first be enabled through the SCi software in the system screen MONO Audio...

Страница 46: ...eception of digital input signals and or crosstalk between Sources 110 ohm input termination for the AES EBU digital inputs is controlled by the settings of switches 1 2 11 and 12 on Block 2 of the co...

Страница 47: ...tal input signals and seamlessly presents them for selection in exactly the same way as analogue ones the inputs may therefore be any mixture of analogue and digital Sources A full scale digital input...

Страница 48: ...or future use The pin assignations are as follows Pin No I O Function 1 O Audio underlevel fail alarm latching open collector 9 I MUTE input pull low to activate 2 O Audio overlevel alarm latching ope...

Страница 49: ...dio is still present at the headphone and line outputs and the front panel modifiers affect this audio as normally Note this function is operational from firmware version V1 116 and onwards The DIM in...

Страница 50: ...ogram e g Hyperterminal or custom software may be developed for specific requirements see the section of this manual on the serial command protocol for further information Sonifex SCi software is avai...

Страница 51: ...riable Equalisation Type Parametric Bands Five Centre Frequency 200Hz to 18kHz Bandwidth 0 25 to 2 octaves Boost Cut 12dB Programming Via USB serial control port Amplifier Loudspeakers Configuration T...

Страница 52: ...135 and 180 degrees Remote Control USB Slave device 19200 baud Serial RS232 19200 baud 3 wire connection Alarm Outputs 1 Audio underlevel fail latching 2 Audio overlevel latching 3 Sustained phase err...

Страница 53: ...ON Analogue OFF SW5 Output Level Fixed ON Variable OFF SW6 Input Gain Matrix SW7 Input Gain Matrix SW8 Meter Ballistics Scaling Matrix SW9 Meter Ballistics Scaling Matrix SW10 Meter Ballistics Scalin...

Страница 54: ...x 30 5cm D x 4 4cm H 1U 19 W x 12 D x 1 7 H 1U Dimensions Boxed 55cm W x 43cm D x18cm H 21 7 W x 16 9 D x 7 1 H 1U Weight Nett 4 5kg Gross 5 9kg Nett 10lb Gross 13lb Options RM HD1 3G HD SD SDI expans...

Страница 55: ...are selected the RM 4C8 allows any 2 channels to be monitored The input is auto sensing for either SD HD or 3G input formats and the extraction of embedded audio complies with SMPTE 272 SD and SMPTE...

Страница 56: ...1 4835Gbps SMPTE 292M HD 2 97 or 2 967Gbps SMPTE 424M 3G Supported Video Formats 525 59 94 SMPTE 125M 625 50 ITU R BT 656 720p 23 98 24 25 29 97 30 50 59 94 60 SMPTE 296M 1035i 59 94 60 SMPTE 260M 10...

Страница 57: ...n the selected channel the Channels CHANS button flashes to indicate that decoding is possible Pressing the CHANS button displays the Dolby Digital 5 1 or Dolby E 8 channel signal using the 4 bar grap...

Страница 58: ...35Gbps SMPTE 292M HD 2 97 or 2 967Gbps SMPTE 424M 3G Supported Video Formats 525 59 94 SMPTE 125M 625 50 ITU R BT 656 720p 23 98 24 25 29 97 30 50 59 94 60 SMPTE 296M 1035i 59 94 60 SMPTE 260M 1080i 5...

Страница 59: ...itoring of a digital audio stream containing either Linear PCM or Dolby encoded audio The RM E1X has 2 x XLR inputs to accept AES EBU level inputs and the RM E1B has 2 x BNC connectors for S PDIF leve...

Страница 60: ...or AES or S PDIF Output AES S PDIF Transmitter Technical Specification For RM E1X and RM E1B AES Input Output 110 transformer coupled RM E1X balanced I O S PDIF Input 75 transformer coupled Output RM...

Страница 61: ...ll need to be loose to aid in the alignment of the expansion board 7 Plug the expansion board trailing cable into the expansion connector on the main board 8 Insert the expansion board into the rear o...

Страница 62: ...INV and M S illuminated orange When a Dolby encoded format is detected then their secondary function becomes active and the buttons illuminate green The secondary functions of the INV and M S buttons...

Страница 63: ...ht rotary source selector is ignored for the purposes of channel pair selection For example if the audio group consisted of a Dolby stream in channel pair 1 inputs 1 2 and a normal PCM stream in chann...

Страница 64: ...g and loudspeakers Once the required program has been selected press the PROGS button to exit Program Select mode The program downmix will remain selected until the input source changes or downmix mod...

Страница 65: ...x 2 1L 1R 3L 3R None None 2L 2R 2 x 2 2 x 1 1L 1R 3C 4C None None 2L 2R 2 4 x 1 1L 1R 4C 5C None None 2C 3C 6 x 1 1C 2C 3C 4C 5C 6C None None 4 1L 1R 1C 1S None None None None 2 2 1L 1R None None Non...

Страница 66: ...minated a light green colour Dolby Digital sources are limited to 6 channels in Multichannel monitoring mode To exit Multichannel monitoring mode press the CHANS button Dual Metering Split Scale Each...

Страница 67: ...red Further commands sent before the first command is acknowledged will be ignored Responses will be CR LF terminated After power up a welcome string is sent Initialising Sonifex Reference Monitor don...

Страница 68: ...lects normal polarity lock low conducting output a 1 selects inverted polarity lock high non conducting output b 0 selects the logical OR of the LH RH channel lock status b 1 selects the logical AND o...

Страница 69: ...e number starting with 01 UID Unit ID Request UID RM4 V11yyyy or UID RM 2S4 xxxxxx or UID RM 2S10 xxxxxx or UID RM 4C8 xxxxxx or UID RM4 A bootloader Where x number of sources available in each of ban...

Страница 70: ...eference Monitor will not operate normally and will instead enter a protected Bootloader mode In this mode the unit has a limited command set and will await a successful retry of the update process Sh...

Страница 71: ...2 BW 1 2 BW 2 K tan pi F 48000 A G 1 From these the three coefficients M1 M2 and M3 can be calculated They differ according to whether boost or cut is required If boost is required M1 A R K 1 R K K 2...

Страница 72: ...html Once you have downloaded the drivers unzip them to a suitable folder Connect the Reference Monitor to your computer using a USB cable and power up the Reference Monitor The Found New Hardware wiz...

Страница 73: ...wn in the list If they are not listed check the cable s between the Reference Monitor and your PC Fig 6 3 SCi Device Information Panel Close the device dialog by clicking on the cross in the top right...

Страница 74: ...ng Dolby Digital Monitoring Bank Source Selection Editing On the left hand side of the Main tab you have the ability to select Banks and their respected Sources and to edit their names Depending upon...

Страница 75: ...from within SCi 5 Band Parametric Equalizer The 5 band parametric EQ built into the Reference Monitors is only available using serial control so using SCi is an easy way to configure the EQ The 5 band...

Страница 76: ...Button on the top toolbar A text edit box appears for you to type in the name of your new preset Press the Enter key to Save the preset name The name now appears in the EQ Preset box available for se...

Страница 77: ...g Presence Detection Click on the Update Firmware button to install new firmware on the connected Reference Monitor This screen can also be used to update firmware on the optional Dolby Decoding card...

Страница 78: ...68 Reference Monitors User Handbook NOTES N OT E S...

Страница 79: ...Reference Monitors User Handbook 69 N OT E S NOTES...

Страница 80: ...w w w sonifex co uk t 44 0 1933 650 700 f 44 0 1933 650 726 sales sonifex co uk...

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