Sonifex Redbox RB Series User Handbook Manual

Sonifex Redbox RB Series User Handbook Manual

Digital audio converters, synchronisers, delays & silence detectors
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Table of Contents

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Redbox
User Handbook
Digital Audio Converters, Synchronisers, Delays
& Silence Detectors
RB-ADDA
Combined A/D and D/A unit (24 bit, 96kHz
capable)
RB-ADDA2
Combined A/D and D/A unit (24 bit, 192kHz
capable)
RB-SC1
Sample rate converter (24 bit, 96kHz capable)
RB-SC2
Dual sample rate converter (24 bit, 192kHz capable)
RB-DAC1
Digital to analogue converter
RB-SP1
Digital AES/EBU splitter & combiner unit
RB-DS2
Stereo audio delay synchroniser
RB-PD2
Stereo profanity delay
RB-SD1
Silence detection unit
RB-DSD1
Digital silence detection unit
No 1

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Summary of Contents for Sonifex Redbox RB Series

  • Page 1 Redbox User Handbook No 1 Digital Audio Converters, Synchronisers, Delays & Silence Detectors RB-ADDA Combined A/D and D/A unit (24 bit, 96kHz capable) RB-ADDA2 Combined A/D and D/A unit (24 bit, 192kHz capable) RB-SC1 Sample rate converter (24 bit, 96kHz capable) RB-SC2 Dual sample rate converter (24 bit, 192kHz capable) RB-DAC1...
  • Page 2 Information in this document is subject to change without notice and does not represent a commitment on the part of Sonifex Ltd. Sonifex Ltd shall not be liable for any loss or damage whatsoever arising form the use of information or any error contained in this manual.
  • Page 3: Table Of Contents

    Power Cable and Connection Ordering the Correct Mains Lead Installation Information Installing the Optional Video Sync Boards in the RB-DSD1 Opening the RB-DSD1 WEEE & RoHS Directives - Sonifex Statement viii RB-ADDA Combined A/D and D/A Converter Introduction System Block Diagram...
  • Page 4 CO NT ENTS Technical Specification RB-SC2 RB-DAC1 Digital to Analogue Converter Introduction System Block Diagram Front Panel Indicators & Controls Sync & Power Indicator Headphone Output Volume Control Rear Panel Connections and Operation RB-DAC1 Inputs RB-DAC1 Outputs Rear Panel Controls Technical Specifications RB-DAC1 RB-SP1 Digital Splitter &...
  • Page 5 CON TE N TS Serial Port Control Serial Interface Commands and Responses Upgrading Firmware Technical Specification RB-PD2 RB-SD1 Silence Detection Unit Introduction System Block Diagram Rear Panel Connections and Operation A/B Inputs (Left and Right) Outputs Silence Detect Trigger Level Silence Detect Interval Control Mode Dip Switch Settings Remotes Connector...
  • Page 6 CO NT ENTS Serial Interface Commands and Responses Serial Protocol RB-DSD1 Indication Page Unit Setup Page 2. Select Synchronization Options 3. Select Trigger And Switch Time Options 4. Select Operational Modes Miscellaneous Page Updating The Firmware Special Modes Technical Specification For RB-DSD1 11 Connectors &...
  • Page 7 F I GU RE S Figures Fig A: Packing List. Fig B: Mains Cable Wire Colours Fig C: Mains Lead Table. Fig D: RB-RK1Small Redbox Front Rack-mount Kit . Fig E: RB-RK2 Small Redbox Rear Rack-mount Kit. Fig F: RB-RK3 Large Redbox Rear Rack-mount Kit. Fig G: RB-DSD1 Optional Video Sync Installation Fig 1-1: RB-ADDA Front Panel Fig 1-2: RB-ADDA System Block Diagram...
  • Page 8 FI GU RE S Fig 6-2: RB-SP1 System Block Diagram Fig 6-3: RB-SP1 Front Panel Fig 6-4: RB-SP1 Type and Mode Flow Diagrams Fig 6-5: RB-SP1 Rear Panel Fig 6-6: RB-SP1 Mode Select Dip Switches Fig 7-1: RB-DS2 Front Panel Fig 7-2: RB-DS2 System Block Diagram Fig 7-3: Front Panel CONTROL Fig 7-4: RB-DS2 Rear Panel...
  • Page 9 WARR AN T Y Warranty Warranty and Liability - important the purchaser is advised to read this clause The Company agrees to repair or (at its discretion) replace Goods which are found to be defective (fair wear and tear excepted) and which are returned to the Company within 12 months of the date of despatch provided that each of the following are satisfied: Notification of any defect is given to the Company immediately upon its...
  • Page 10: Warranty

    WAR R A NT Y (ii) For any breach by the Company of any statutory undertaking as to title, quiet possession and freedom from encumbrance. Subject to conditions (a) and (c) from the time of despatch of the Goods from the Company’s premises the Purchaser shall be responsible for any defect in the Goods or loss, damage, nuisance or interference whatsoever consequential economic or otherwise or wastage of material resulting from or caused by or to the Goods.
  • Page 11: Warranty Registration

    Sonifex Ltd in the UK. For your own records you should write down the serial number (which can be found on the rear of the Redbox.
  • Page 12: Power Cable And Connection

    Fig B: Mains Cable Wire Colours Ordering the Correct Mains Lead When ordering a Redbox from Sonifex, it is helpful if you can specify your required operating voltage and mains lead. After the product code add: UK, for 230V, UK 3 pin to IEC lead...
  • Page 13: Fig D: Rb-Rk1Small Redbox Front Rack-Mount Kit

    SAF E T Y & I N STALL AT I ON I N F ORMATI ON They can also be rack-mounted, with either the front, or rear of the Redbox positioned at the front of the rack: Front Mounting Redboxes: For rack mounting smaller (28cm) units the optional RB-RK1 (Red) or RB-RK1B (Black) kit can be used (which include 4 off M6 panel fixing screws).
  • Page 14: Installing The Optional Video Sync Boards In The Rb-Dsd1

    SA FE T Y & IN S TALL ATIO N INFO RMATION Installing the Optional Video Sync Boards in the RB-DSD1 There are 2 optional video sync boards which can be used to synchronise the outputs of the RB-DSD1 to a 48kHz sample rate from an analogue or digital video signal: RB-SYA - The Analogue video sync board will accept a composite signal of NTSC (525), PAL (625) &...
  • Page 15: Fig G: Rb-Dsd1 Optional Video Sync Installation

    SAF E T Y & I N STALL AT I ON I N F ORMATI ON Reset Sync Card Sync Card Pillar Mount Pillar Mount AES/EBU Sync Power Input Plug Dipswitches Remote Fuse Word Clock Connector Case Fig G: RB-DSD1 Optional Video Sync Installation Redbox User Handbook No 1...
  • Page 16: Weee & Rohs Directives - Sonifex Statement

    It gives a contact for individuals who are unsure about the correct procedure when the product has reached its “end of use”. Sonifex Ltd will be happy to give you information about local organisations that can reprocess the products, or alternatively all products that have reached “end of use” can be returned to Sonifex and will be reprocessed correctly free of charge.
  • Page 17: Rb-Adda Combined A/D And D/A Converter

    DIGITA L AUD I O CON VE RT E RS RB-ADDA Combined A/D and D/A Converter Introduction Fig 1-1: RB-ADDA Front Panel Using 24 bit, 96kHz capable devices, the RB-ADDA A/D and D/A Converter is a 1U rack- mount which produces an AES/EBU or S/PDIF level digital audio output from a balanced XLR or unbalanced phono stereo audio input.
  • Page 18: System Block Diagram

    DI GI TA L AUDIO CO NVERT E R S For the digital output, there is a switch available to define the content of the channel status bits embedded within the digital audio stream. The channel status bits can be set to either Professional or Consumer Mode.
  • Page 19 DIGITA L AUD I O CON VE RT E RS RB-ADDA Inputs XLR Analogue Inputs (Left and Right) The XLR 3 pin sockets used for the left and right channel inputs are electronically balanced and have an impedance of greater than 10kΩ bridging. Each XLR has the following connections: Pin 1: Screen.
  • Page 20: Fig 1-4: Rb-Adda Full Scale Db Settings

    DI GI TA L AUDIO CO NVERT E R S Output Level Adjustment The output gain can be individually adjusted for left and right channels through the rear panel by dipswitches. Each output gain can be set for a signal of full-scale digits in the digital domain to give +12, +18 or +24dBu output on the XLR connectors (see Fig 1-4).
  • Page 21: Fig 1-5: Rb-Adda Status Select Switches

    DIGITA L AUD I O CON VE RT E RS Status Select Switches These switches are used to determine the status or content of the digital signals. The type of information encoded in the channel status bits of a digital audio signal can be professional or consumer and is determined by switch 1.
  • Page 22: Fig 1-6: Rb-Adda Frequency And Sync Rotary Switch

    DI GI TA L AUDIO CO NVERT E R S In Slave Sync Mode, switch position D, the digital output sample rate follows the digital input. When the digital input signal is not present the digital output is turned off. The following table, also printed on the top of the unit, summarises the above settings and shows the sample rate generated by the internal clock generator in master and auto sync modes.
  • Page 23: Technical Specifications Rb-Adda

    DIGITA L AUD I O CON VE RT E RS Technical Specifications RB-ADDA A/D Connections Analogue Inputs: 2 x XLR 3 pin (balanced) (L & R) 2 x RCA phono (unbalanced) (L & R) Digital Outputs: 1 x AES/EBU XLR 3 pin plug 1 x S/PDIF RCA phono socket A/D Audio Specification Maximum Input Level:...
  • Page 24: Rb-Adda2 Combined A/D And D/A Converter 24Bit 192Khz

    DI GI TA L AUDIO CO NVERT E R S 2 RB-ADDA2 Combined A/D and D/A Converter 24bit 192kHz Introduction Sync Button Frequency Set Bits Button and LEDs Button and LEDs and LEDs Reset A/D Source Select CS Data Button D/A Source Select Button and LEDs and LEDs...
  • Page 25: Master Mode

    DIGITA L AUD I O CON VE RT E RS The BITS button sets the output bit depth as one of 16, 20 or 24 bits, and the CS DATA button defines the content of the channel status bits embedded within the digital audio stream.
  • Page 26: System Block Diagram

    DI GI TA L AUDIO CO NVERT E R S System Block Diagram Digital Source Digital Input Select Optical Professional AES/EBU Balanced Analogue S/PDIF Output Sync Input Consumer AES/EBU Unbalanced Master Word Clock Clock Generator Frequency Digital Select Output Professional AES/EBU Balanced Analogue...
  • Page 27: Rear Panel Connections And Operation

    DIGITA L AUD I O CON VE RT E RS CS DATA Button & LEDs This button will select the type of channel status bits to be embedded in the digital audio output – either professional or consumer. The channel status type can be set directly or can follow the digital audio input source.
  • Page 28 DI GI TA L AUDIO CO NVERT E R S RB-ADDA2 Inputs XLR Analogue Inputs (Left and Right) The XLR 3 pin sockets used for the left and right channel inputs are electronically balanced and have an impedance of greater than 10kΩ bridging. Each XLR has the following connections: Pin 1: Screen.
  • Page 29 DIGITA L AUD I O CON VE RT E RS Word Clock Input The Word Clock input is designed to receive a distributed clock running at the actual sampling frequency. The signal can be differential, or single ended, TTL level. RB-ADDA2 Outputs Analogue Outputs (Left and Right) The XLR 3 pin output plug connectors are electronically balanced with an output...
  • Page 30: Serial Port Control

    The Serial Port allows the RB-ADDA2 to be controlled and updated from a PC via a pin-to- pin serial cable, using the Sonifex Serial Control Interface (SCI) software. This software is available as a free download from the Sonifex website at www.sonifex.co.uk/sci.
  • Page 31 DIGITA L AUD I O CON VE RT E RS Command Description Response nn=05 - Select 176kHz Master Clock Sample Rate nn=06 - Select 192kHz Master Clock Sample Rate ADM:nn - Set ADC Mode & Select Sync Source - ACK: nn=00 - Master Mode nn=04...
  • Page 32 DI GI TA L AUDIO CO NVERT E R S Command Description Response cc = value from ADC Frequency as ADF: above dd = value from ADC Bits as ADB: above ee = value from ADC CS Data Select as ADC: above ff = value from DAC Source as DAS: above LOC: - Lock Front Panel...
  • Page 33: Upgrading Firmware

    Occasionally, it may be necessary to upgrade the firmware on the RB-ADDA2 to add new functionality and fix software bugs. New firmware updates will be made available from time to time on the Sonifex website. Visit www.sonifex.co.uk for details. The firmware is upgraded using the Serial Control Interface - SCI. This PC software downloads the new firmware and initiates the upgrade process.
  • Page 34 DI GI TA L AUDIO CO NVERT E R S A/D Operational Controls Analogue Input Source: Balanced XLRs or unbalanced phonos, via A/D SOURCE push-button Analogue Input Level for FSD: +12dBFS, +18dBFS or +24dBFS, via A/D SOURCE push-button Analogue Input Level: +9dBu to +27dBu via rear-panel Adjust: +3dB via pre-set pots...
  • Page 35 DIGITA L AUD I O CON VE RT E RS Other Connections Mains Input: Universal filtered IEC, continuously rated 85-264VAC @47- 63Hz, max 10W Fuse Rating: Anti-surge fuse 1A 20 x 5mm Serial Port: RS232 9 Pin D-type socket D/A Operational Controls Digital Input Select: AES/EBU, S/PDIF or TOSlink optical, via D/A SOURCE push- button...
  • Page 36: Rb-Sc1 Sample Rate Converter

    DI GI TA L AUDIO CO NVERT E R S 3 RB-SC1 Sample Rate Converter Introduction Fig 3-1: RB-SC1 Front Panel The RB-SC1 Sample Rate Converter standardises the sample rate of a digital audio signal to one of 32kHz, 44.1kHz, 48kHz or 96kHz, or to a synchronising input, selectable from AES/ EBU, S/PDIF or TTL Word Clock.
  • Page 37: Front Panel Indicators

    DIGITA L AUD I O CON VE RT E RS Front Panel Indicators Front Panel LED The LED on the front panel is normally red to indicate that power is present on the unit. However, it also has a secondary role to indicate the status of the digital inputs Fast flashing between red and amber –...
  • Page 38: Fig 3-4: Rb-Sc1 Status Switches

    DI GI TA L AUDIO CO NVERT E R S AES/EBU Output The digital output XLR 3 pin socket has an impedance of 110 ohms. It has the following connections: Pin 1: Screen Pin 2: Phase Pin 3: Non-phase The signals on this connector will comply with the IEC 60968 specification S/PDIF Output The digital output S/PDIF phono output has an impedance of 75 ohms.
  • Page 39: Fig 3-5: Rb-Sc1 Frequency And Sync Rotary Switch Settings

    DIGITA L AUD I O CON VE RT E RS In Master sync mode, switch positions 0 – 5, the digital output sample rate is simply set by, and locked to, the internal on-board clock generator. No sync signal is used or required. In Auto sync mode, switch positions 6–...
  • Page 40: Technical Specifications Rb-Sc1

    DI GI TA L AUDIO CO NVERT E R S Technical Specifications RB-SC1 Audio Specification Dynamic Range: 120dB Distortion & Noise: -114dB THD + N at 1kHz, ref 0dB FS Sample Freq Range: 30kHz – 100kHz Bit Depth: Up to and including 24 bits. Connections and Controls Audio Inputs: 1 x AES/EBU XLR 3 pin female...
  • Page 41: Rb-Sc2 Dual Sample Rate Converter, 24Bit 192Khz

    DIGITA L AUD I O CON VE RT E RS 4 RB-SC2 Dual Sample Rate Converter, 24bit 192kHz Introduction Frequency Button Input 1 Button Sync Button and LEDs and LEDs and LEDs Reset CS Data Button Input 2 Button Button and LEDs and LEDs Fig 4-1: RB-SC2 Front Panel...
  • Page 42: Fig 4-2: Rb-Sc2 X-Lock Sync Mode

    DI GI TA L AUDIO CO NVERT E R S The FREQUENCY button allows selection of the master sample frequency from one of 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz or 192kHz. The CS DATA button defines the content of the channel status bits embedded within the digital audio stream, and can be forced to either Professional Mode (PRO), Consumer Mode (CON) or to follow the mode of the input (FOLLOW).
  • Page 43: Installing The Optional Video Sync Boards

    DIGITA L AUD I O CON VE RT E RS Auto Mode Here, the unit is synchronised to an external source, using the digital audio sync, or to the TTL level Word Clock. If no sync signal is present the unit runs from the onboard master clock at a rate selected by the front panel control (32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz or 192kHz).
  • Page 44: Follow These Instructions To Fit Either Of The Sync Boards

    DI GI TA L AUDIO CO NVERT E R S To put the unit back together, slide the PCB back into the chassis and refit the screws in reverse order. The RB-SC2 will auto-sense the video cards on powering up and the relevant option will be avaiable using the SYNC button (see page 5).
  • Page 45: Fig 4-5: Frequency Set Button & Leds

    DIGITA L AUD I O CON VE RT E RS Front Panel Controls & Indicators The LED on the front panel is normally red to indicate that power is present on the unit. FREQUENCY Set Button & LEDs When the button is not illuminated it will select the 88.2kHz 48kHz 96kHz...
  • Page 46: Fig 4-9: Rb-Sc2 Rear Panel

    DI GI TA L AUDIO CO NVERT E R S Rear Panel Connections and Operation AES/EBU AES/EBU AES/EBU Digital Output 2 Digital Output 1 Sync Input S/PDIF S/PDIF S/PDIF S/PDIF Optional Video Fuse Output 2 Input 2 Output 1 Input 1 Sync Input Optical Optical...
  • Page 47: Serial Port Control

    The Serial Port allows the RB-SC2 to be controlled and updated from a PC via a pin-to- pin serial cable, using the Sonifex Serial Control Interface (SCI) software. This software is available as a free download from the Sonifex website at www.sonifex.co.uk/sci.
  • Page 48 DI GI TA L AUDIO CO NVERT E R S After the delay synchroniser has been powered-up, an initialisation string is sent “Initialising SC2”. Following are the commands and the expected responses: Command Description Response Bnn: - Baud Rate - ACK: (at old rate) nn=11 (115200) nn=57 (57600) nn=38 (38400)
  • Page 49 DIGITA L AUD I O CON VE RT E RS MFQ:nn - Limit Front Panel Frequency Selection - ACK: Where nn=0 for No Limit nn=1 for 48kHz Limit & nn=2 for 96kHz Limit MOD:nn - Set Mode & Select Sync Source - ACK: nn=00 - Master Mode...
  • Page 50: Upgrading Firmware

    Occasionally, it may be necessary to upgrade the firmware on the RB-SC2 to add new functionality and fix software bugs. New firmware updates will be made available from time to time on the Sonifex website. Visit www.sonifex.co.uk for details. The firmware is upgraded using the Serial Control Interface - SCI. This PC software downloads the new firmware and initiates the upgrade process.
  • Page 51 DIGITA L AUD I O CON VE RT E RS Operational Controls Master Frequency Select: 32, 44.1, 48, 88.2, 96,176.4 or 192kHz via FREQUENCY push-button Channel Status Bits: Consumer mode, professional mode or follow input, via CS DATA push-button Digital Input Select: AES/EBU, S/PDIF or TOSlink optical, via INPUT1 or INPUT2 push-buttons Sync Input Select:...
  • Page 52: Rb-Dac1 Digital To Analogue Converter

    DI GI TA L AUDIO CO NVERT E R S 5 RB-DAC1 Digital to Analogue Converter Introduction Fig 5-1: RB-DAC1 Front Panel Using 24 bit, 96kHz capable devices, the RB-DAC1 Digital to Analogue Converter is a 1U rack-mount which produces a stereo balanced XLR or unbalanced phono output from an incoming AES/EBU or S/PDIF digital input signal.
  • Page 53: Front Panel Indicators & Controls

    DIGITA L AUD I O CON VE RT E RS Front Panel Indicators & Controls Sync & Power Headphone Volume Indicator Output Control Fig 5-3: RB-DAC1 Front Panel Sync & Power Indicator The LED on the front panel is normally red to indicate that power is present on the unit. However, it also has a secondary role to indicate the status of the digital inputs : Flashing between red and amber –...
  • Page 54: Rb-Dac1 Inputs

    DI GI TA L AUDIO CO NVERT E R S RB-DAC1 Inputs AES/EBU Input The digital input XLR 3 pin socket has an impedance of 110Ω. It has the following connections: Pin 1: Screen Pin 2: Phase Pin 3: Non-phase The signals on this connector should meet the IEC 60968 specification S/PDIF Input The S/PDIF digital phono input has an impedance of 75Ω.
  • Page 55: Technical Specifications Rb-Dac1

    DIGITA L AUD I O CON VE RT E RS De-emphasis Switch If de-emphasis is selected (switch 3) the RB-DAC1 will decode 50/15µs emphasis when indicated by certain channel status bits in the incoming digital audio data. Digital Select Button This button is used to switch the digital input from the AES/EBU XLR connector (button out) to the S/PDIF phono connector (button in).
  • Page 56 DI GI TA L AUDIO CO NVERT E R S Operational Controls Digital Input Select: AES/EBU or S/PDIF, via push-switch Gain Select: Selectable 12dBu, 18dBu or 24dBu output level, ref. FSD De-emphasis On/Off: Dipswitch Equipment Type RB-DAC1 Digital to Analogue Converter Physical Specifications Dimensions (Raw) 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U)
  • Page 57: Rb-Sp1 Digital Splitter & Combiner

    DIGITA L AUD I O CON VE RT E RS 6 RB-SP1 Digital Splitter & Combiner Introduction Fig 6-1: RB-SP1 Front Panel The RB-SP1 Digital Splitter & Combiner is used to interface various double sampling pieces of equipment. Some older equipment uses 2 AES/EBU connectors for double sampling with each connector carrying an audio signal at a normal frame rate, whilst other equipment has a single connector using twice the frame rate.
  • Page 58: Front Panel Indicators & Controls

    DI GI TA L AUDIO CO NVERT E R S Front Panel Indicators & Controls Fig 6-3: RB-SP1 Front Panel Front Panel LED’s There are four LED indicators situated on the front of the unit. The red LED on the far left of the front panel is to indicate that power is present on the unit.
  • Page 59 DIGITA L AUD I O CON VE RT E RS its right output. Output 2 will contain the original right data on its left output and a muted signal on its right output. This mode can be altered by the dipswitch settings, to a channel swap mode or a dual mono mode.
  • Page 60: Rear Panel Connections And Operation

    Combine O/P 2 48kHz double sampled I/P 1 Combine DI GI TA L AUDIO CO NVERT E R S 48kHz double sampled O/P 1 96kHz I/P 2 I/P 1 48kHz double sampled 48kHz double sampled O/P 1 96kHz I/P 2 Stereo/Mono 48kHz double sampled Dipswitch 3...
  • Page 61: Inputs And Outputs

    DIGITA L AUD I O CON VE RT E RS Inputs and Outputs AES/EBU Inputs The digital source XLR 3 pin sockets have an impedance of 110Ω. They have the following connections and meet the IEC 60968 specification: Pin 1: Screen Pin 2: Phase Pin 3: Non-phase S/PDIF Inputs...
  • Page 62: Technical Specifications Rb-Sp1

    DI GI TA L AUDIO CO NVERT E R S 2. With switch 3 on (switch 1 is ignored), channel A (Left) is transferred to both channels on output 1 and channel B (Right) on the input is transferred to both channels on output 2. In Combine mode with switch 1 off, channel A (Left) on input 1 is transferred to channel A (Left) of output 1, and channel A (Left) on input 2 is transferred to channel B (Right) of output 1.
  • Page 63 DIGITA L AUD I O CON VE RT E RS Mains Input: Filtered IEC, continuously rated 85-264VAC @ 47-63Hz max 10W Fuse Rating: Anti-surge fuse 1A 20 x 5mm Equipment Type RB-SP1 Digital splitter & combiner Physical Specifications Dimensions (Raw) 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U) 19”...
  • Page 64: Rb-Ds2 Audio Delay Synchroniser

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S 7 RB-DS2 Audio Delay Synchroniser Introduction Fig 7-1: RB-DS2 Front Panel The RB-DS2 is a stereo audio delay synchroniser used for resynchronising audio to video following delay processes such as standards conversion, transmission delay, logo insertion, video aspect ratio conversion and network delays.
  • Page 65: Extended Mode Using Compact Flash

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS All of the settings in the unit can be saved to one of 8 configuration settings. These Configs can be viewed, edited, saved and loaded, and also remotely loaded by using one of the 8 GPI contacts, meaning that any setting, such as delay time or Bypass, can be altered instantaneously using a GPI signal.
  • Page 66: Front Panel Controls

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S System Block Diagram AES/EBU AES/EBU Digital Digital Bypass Bypass Receiver Transmitter Control Control Digital Digital Input Output Recovered Clock Master Source Clock select & Generator Delay Control Professional...
  • Page 67: Rear Panel Connections And Operation

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Changes to the delay are implemented dynamically. If the selected delay value exceeds the amount of audio data that has been stored, the analogue and digital outputs will be muted until the required delay has been acquired.
  • Page 68 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Pin 1: Screen Pin 2: Phase Pin 3: Non-phase Analogue Input Adjustment The Input Peak Digits setting (see System Menu: Volume) sets the analogue input gain for full-scale digits in the digital domain.
  • Page 69: The Default Screen

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Pin10: Open collector output 1 Pin11: Open collector output 2 Pin12: Open collector output 3 Pin13: Open collector output 4 Pin14: Open collector output 5 Pin15: Open collector output 6 RS232...
  • Page 70: The Main Menu

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S The Main Menu To access the main menu, press and hold the rotary CONTROL knob and follow the instructions on page 51. MAIN MENU MODE SOURCE CHANNELS...
  • Page 71 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS installed, a message box will be display and the audio output will not be interrupted. The default mode is Normal. Source This option selects which input is used for the audio delay process.
  • Page 72 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S 64KHZ, 88.2KHZ and 96KHZ. Changing the sample rate will mute the analogue and digital outputs while the delay is acquired with the new setting. The default sample rate is 48kHz. Sample Width This option selects the sample size used in the analogue to digital and digital to analogue conversion.
  • Page 73 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Output Gain This option is directly related to the Input Peak Digits; it sets the full scale digits on the output of the unit.
  • Page 74 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Load This selection loads the selected setup. From the setups sub-menu select LOAD followed by the required setup number. The analogue and digital audio outputs will be muted whilst the new configuration is loaded.
  • Page 75 Sonifex. The Version Number is the revision of the main software. This software can be upgraded. For the latest software updates, check the Sonifex website at www.sonifex.co.uk The Display Version Number is the revision of the software that is running on the display PCB.
  • Page 76: Serial Port Control

    The Serial Port allows the RB-DS2 to be controlled and updated from a PC via a pin-to- pin serial cable, using the Sonifex Serial Control Interface (SCI) software. This software is available as a free download from the Sonifex website at www.sonifex.co.uk/sci.
  • Page 77 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Command Description Response DLY:c,n Set delay where ACK: or NAK: c = 0 (left/stereo channel) c = 1 (right channel) n = delay DWN: **Download firmware...
  • Page 78 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Command Description Response SFM:n Set format where ACK: or NAK: n = 0 (25 frames per second) n = 1 (24 frames per second) n = 2 (30 frames per second) n = 3 (30 drop frame) SIP:n...
  • Page 79 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Command Description Response n = 27 (+21dB) n = 28 (+22dB) n = 29 (+23dB) n = 30 (+24dB) SRL:n Set remote setup loading where ACK: or NAK:...
  • Page 80: Upgrading Firmware

    Occasionally, it may be necessary to upgrade the firmware on the delay synchroniser to add new functionality and fix software bugs. New firmware updates will be made available from time to time on the Sonifex website. Visit www.sonifex.co.uk for details. The firmware is upgraded using the Serial Control Interface - SCI. This PC software downloads the new firmware and initiates the upgrade process.
  • Page 81: Technical Specifications Rb-Ds2

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Technical Specifications RB-DS2 Audio Specification Maximum Input Level: +27dBu Input Impedance: > 10kΩ bridging Input Levels: +24dBu / +18dBu / +12dBu for FSD Gain Range: Adjustable 3dB loss to 3dB gain (L &...
  • Page 82: Opening The Rb-Ds2 To Add A Compact Flash Card

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Additional Connections Mains Input: IEC Power Plug, 100-240 VAC, 47-63Hz, fused 60W peak, 30W average Fuse Rating: Anti-surge fuse 2A 20 x 5mm Serial Communications Port: 9-way D-type socket Remote Input/Output Port:...
  • Page 83: Fig 7-7: Maximum Delays In Normal Mode (Using On-Board Memory Only)

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS 32 kHz 44.1 kHz 48 kHz ON-BOARD 16 bit 24 bit 16 bit 24 bit 16 bit 24 bit Samples 2058240 1029120...
  • Page 84: Fig 7-8: Maximum Delays In Extended Fat Mode With 1 Gb Compact Flash™ Memory Card Installed

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S 32 kHz 44.1 kHz 48 kHz 16 bit 24 bit 16 bit 24 bit 16 bit 24 bit Samples 261468160 130734080 261468160 130734080 261468160 130734080 Fields 25fps 408544...
  • Page 85: Fig 7-9: Maximum Delays In Extended Raw Mode With 16 Gb Compact Flash™ Memory Card Installed

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS 32 kHz 44.1 kHz 48 kHz 16GB 16 bit 24 bit 16 bit 24 bit 16 bit 24 bit Samples 4000000000 2000000000 4000000000 2000000000 4000000000 2000000000 Fields 25fps...
  • Page 86 Redbox User Handbook No 1...
  • Page 87: Rb-Pd2 Stereo Profanity Delay

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS RB-PD2 Stereo Profanity Delay Introduction Fig 8-1: RB-PD2 Front Panel The RB-PD2 is a stereo audio profanity delay used for live broadcast programs to prevent unwanted or obscene material from being transmitted.
  • Page 88 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S A front panel blue vacuum fluorescent display with rotary controller is used for selecting the various settings of the profanity delay, which include the start delay and dump modes, safe delay build/exit speed, period, source (analogue or digital), sample rate and sample bit width as well as the required delay time.
  • Page 89: System Block Diagram

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS System Block Diagram AES/EBU AES/EBU Digital Digital Bypass Receiver Transmitter Bypass Control Control Digital Digital Recovered Input Output Clock Compact Flash Card...
  • Page 90: Using The Audio Stretch Method Of Operation

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Using the Audio Stretch Method of Operation 1. [MAIN MENU > DELAY OPTIONS > START MODE > BUILD DELAY]. Select the delay START MODE as BUILD DELAY.
  • Page 91: Using The Play File Method Of Operation

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS function, the delay will remain at zero. Otherwise BUILD DELAY mode will be initiated. 11. At the end of a programme, press the EXIT DELAY button to begin ramping the delay to zero.
  • Page 92 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S 9. To discard ALL of the buffered audio and mute the audio outputs, press and hold the DUMP/DROP button to initiate the DROP function. The audio outputs will remain muted until the button is released.
  • Page 93: Front Panel Controls

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Front Panel Controls All of the RB-PD2’s configurations can be accessed with the single front panel mounted rotary control in conjunction with the vacuum fluorescent display. Fig 8-3: RB-PD2 Rotary Control Operation Setting the Delay The target delay of the RB-PD2 is dependent on the selected Start Mode.
  • Page 94: Fig 8-4: Rb-Pd2 Front Panel Buttons

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S The BUILD DELAY Button The BUILD DELAY button activates the build delay mode when the audio stretch algorithm starts to silently build up audio delay. This mode can only be entered if the unit is at zero delay or in exit delay mode.
  • Page 95 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS The Audio BYPASS Button The BYPASS button enables the delay bypass mode, which internally connects the inputs to outputs in both the analogue and digital domains. The BYPASS button is illuminated red when the delay bypass mode is enabled and the analogue and digital icons on the display will change to .
  • Page 96: Rear Panel Connections

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Rear Panel Connections Fig 8-5: RB-PD2 Rear Panel XLR Analogue Inputs (Left and Right) The XLR 3 pin sockets used for the left and right channel analogue inputs are electronically balanced and have an impedance greater than 10kΩ...
  • Page 97 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Remote Inputs and Outputs The 15-way ‘D’ type socket connector presents 8 active low inputs and 6 open collector outputs which can be programmed to your requirements.
  • Page 98: The Default Screen

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S The Default Screen ANALOGUE 48KHZ 16BIT DELAY: 00.0 SECS 06.0 SECS ZERO DELAY Fig 8-6: The Default Screen The default screen shows the current selections for audio source, sample rate and sample bit width in the top left of the screen.
  • Page 99 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS To access the main menu, press and hold the rotary control knob for 1.5 seconds. Instructions for navigating the menu structure are on page 79. The available menu and sub menu items are described below together with the associated configuration options.
  • Page 100 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S SAFE PERIOD This option selects the safe period duration, i.e., amount of delay that needs to be built up before the DUMP button can be used without muting the outputs. To edit the safe period, turn the rotary control until the highlight is over the safe period value.
  • Page 101 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS To select a file, turn the rotary control and then press when the required file is highlighted. To move to a sub-directory, press the rotary control with the highlight over the required directory name.
  • Page 102: Fig 8-8: The Record Screen

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S New Recording 00:00:00 DURATION: FILENAME: RECD0001.WAV FORMAT: AN 48KHZ 24BIT Fig 8-8: The Record Screen This option enters the record screen provided a valid Compact Flash™ memory card is inserted in the front panel Compact Flash™...
  • Page 103 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Sample Rate This option selects the sample rate used for recording when the input source is set to Analogue.
  • Page 104 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S MEMORY CARD This selection shows the Memory Card sub-menu. The sub-menu items are DETAILS, FILE DELETE and FORMAT CARD. A Compact Flash™ memory card slot, accessible from the front panel, accepts memory cards up to 2Gbytes.
  • Page 105 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS START RECORDING MUTE OUTPUTS (both analogue and digital) and ACTIVATE BYPASS DELAY TO OUTPUT. The options for remote input 7 and 8 remain unchanged. If a remote input is set to “Delay To Output”, the corresponding remote output in the remote output configuration options (Main Menu->Remotes->Configure Outputs- >Output 1-6) is inaccessible and a message box is displayed stating that this remote...
  • Page 106 Sonifex. The Version Number is the revision of the main software. This software can be upgraded. For the latest software updates, check the Sonifex website at www.sonifex.co.uk The Display Version Number is the software revision running on the display PCB.
  • Page 107: Serial Port Control

    S I LEN CE D E TE C TO RS Serial Port Control The Serial Port allows the RB-PD2 to be controlled and updated from a PC using the Sonifex Serial Control Interface (SCI) software. This software is available as a free download from the Sonifex website at www.sonifex.co.uk/sci.
  • Page 108 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Command Description Response DLB: Build delay ACK: or NAK: DLC: Clear delay immediately to zero ACK: DLE: Exit delay ACK: or NAK: DLF:c Delete file on Compact ACK: or NAK: Flash™...
  • Page 109 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Command Description Response DWN: **Download firmware. ACK: or NAK: New firmware installed when ‘S-Record’ (ACK: indicates download terminator received can start) FMC: Format memory card...
  • Page 110 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Command Description Response RSR:n Set record sample rate where: ACK: or NAK: n = 0 (32 kHz) n = 1 (44.1 kHz) n = 2 (48 kHz) RSW:n Set record sample width where: ACK: or NAK:...
  • Page 111 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Command Description Response SOG:n Set output gain where: ACK: or NAK: n = 0 (-6dB) n = 1 (-5dB) n = 2 (-4dB) n = 3 (-3dB) n = 4 (-2dB)
  • Page 112 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Command Description Response SRI:i_n Set function for remote input where: ACK: or NAK: i = remote input id (0-7) n = 0 (no action) n = 1 (build delay) n = 2 (exit delay) n = 3 (activate dump)
  • Page 113 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Command Description Response q = record source setting r = record sample rate setting s = record sample width setting t = input peak digits setting u = output gain setting v = analogue mute status...
  • Page 114: Upgrading Firmware

    Occasionally, it may be necessary to upgrade the firmware on the RB-PD2 to add new functionality and fix software bugs. New firmware updates will be made available from time to time on the Sonifex website. Visit www.sonifex.co.uk for details. The firmware is upgraded using the Serial Control Interface - SCI. This PC software downloads the new firmware and initiates the upgrade process.
  • Page 115: Technical Specification Rb-Pd2

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Technical Specification RB-PD2 Audio Specification Maximum Input Level: +27dBu Input Impedance: > 10kΩ bridging Analogue & Digital Input Levels: Selectable +12dBu, +18dBu, +24dBu for FSD Analogue Pre-set Input Gain Range: Adjustable 3dB loss to 3dB gain (L &...
  • Page 116 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Rear Panel Connections Analogue Inputs: 2 x XLR 3 pin female (balanced) (L & R) Analogue Outputs: 2 x XLR 3 pin male (balanced) (L & R) Digital Inputs: 1 x AES/EBU XLR 3 pin female Digital Outputs:...
  • Page 117: Rb-Sd1 Silence Detection Unit

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS RB-SD1 Silence Detection Unit Introduction Fig 9-1: RB-SD1 Front Panel The RB-SD1 Silence Detect Unit is a 1U rack mount device used to monitor an unattended stereo studio feed and in the event of the signal going “quiet”...
  • Page 118: System Block Diagram

    Additionally, the RB-SD1 can be programmed for specific applications, which can be defined on power-up of the unit, e.g. for extended silence detect times. See page 107 for current additional power-up modes, or contact Sonifex for further information if you have a particular requirement.
  • Page 119: A/B Inputs (Left And Right)

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS A/B Inputs (Left and Right) There are four XLR-3 inputs, two for channel A (Left & Right) and another two for channel B (Left &...
  • Page 120 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Switch Description When on, the unit operates in stereo mode, whereby if one channel goes quiet the unit will switch, and requires both channels to be present before it switches back.
  • Page 121: Remotes Connector

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Remotes Connector Displayed below are the pin connections and descriptions for the remote connector: Pin No. Signal I/O Description Pin 1 Master Alarm Normally Open Relay 1 N/O to Pin 9 in alarm state...
  • Page 122: Source Select And Indicator

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Source Select and Indicator The normal Main input source is selectable via a push switch accessed via a hole located on the front panel, or it can be controlled remotely (pins 13 and 14). This allows you to define whether input A, or input B is going to be your Main audio input.
  • Page 123: Alarm Indicator

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Alarm Indicator The Alarm indicator situated on the front panel is used to display the alarm status of the Main input.
  • Page 124: D Redbox User Handbook No

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Switch Seconds 60 125 Force Main Mode. In this mode only the remote mode control input has any effect. When this control input is active (low) the output is forced to input B (the master input) regardless of whether audio is present.
  • Page 125: Technical Specifications Rb-Sd1

    For serial numbers before this, the SOURCE LED is not used. Contact Sonifex Ltd if you want to upgrade your RB-SD1 unit to the latest version to take advantage of a new mode.
  • Page 126 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Distortion: As input for balanced input, <0.05% ref +8dBu output for unbalanced input. Connections Inputs (Main & Auxiliary): 4 x XLR 3 pin female (balanced, auxiliary can be unbalanced) Output: 2 x XLR 3 pin male (balanced)
  • Page 127: 10 Rb-Dsd1 Digital Silence Detection Unit

    Introduction Fig 10-1: RB-DSD1 Front Panel The RB-DSD1 digital silence detection unit works in a similar way to the Sonifex RB-SD1 analogue silence detection unit, but has AES/EBU, S/PDIF and TOSlink inputs and outputs instead of analogue inputs and output respectively. Designed to switch from one input to...
  • Page 128: Master Mode

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S the unit to analogue or digital video signals. A front panel DIPSwitch block is used to decide whether the unit is synchronised to Input1, Input2, the AES/EBU sync input, the wordclock sync input or an optional video sync board.
  • Page 129: Front Panel Controls And Indicators

    A powerful feature of the RB-DSD1 is that by using the Sonifex SCi serial software, the unit can be programmed for different delay durations, levels and switching functions so that you can programme the unit for your specific application.
  • Page 130: Main Source Select And Indicators

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S MAIN Source Select and Indicators This button allows you to select which input source you would like to use, from one of the AES/EBU, S/PDIF or TOSlink inputs.
  • Page 131: Front Panel Dipswitches

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Front Panel DIPSwitches The front panel DIPSwitches are concealed behind the screw panel located on the front of the unit.
  • Page 132: Rear Panel Controls

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Synchronisation Source Selection Select which synchronisation source you would like to use by setting DIPSwitches 2 - 4, marked SYNC MATRIX. Synchronise from DIPSwitch 2 DIPSwitch 3 DIPSwitch 4...
  • Page 133 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Main/Aux Input Selection DIPSwitch 4 defines whether the Main input is input 1 or 2. DIPSwitch 4 Description When on, the Main input is input 2.
  • Page 134 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Operation On Loss Of One Channel DIPSwitch 7 defines how the unit reacts to the loss of one channel. DIPSwitch 7 Description When on, the unit will output the remaining channel to the lost channel to create a dual mono output.
  • Page 135: Remotes Connector

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Remotes Connector Displayed below are the pin connections and descriptions for the remote connector: Pin No. Signal Description Pin 1 Master Alarm Normally Open Relay 1 N/O to Pin 9 in alarm state...
  • Page 136: Rs232

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S RS232 The 9-way ‘D’ type socket connector carries a standard RS232 interface and allows direct connection to a serial port on a PC via a pin-to-pin cable. The pin assignments are as follows: Pin 2: Transmit data Pin 3: Receive data Pin 5: Ground...
  • Page 137: Word Clock Input

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS The signals on this connector should meet the IEC 60968 specification Word Clock Input The S/PDIF digital phono input has an impedance of 75Ω. AES/EBU Outputs The digital output XLR 3 pin socket has an impedance of 110Ω.
  • Page 138: Serial Port Control

    The Serial Port allows the RB-DSD1 to be controlled and updated from a PC via a pin-to- pin serial cable, using the Sonifex Serial Control Interface (SCI) software. This software is available as a free download from the Sonifex website at www.sonifex.co.uk/sci.
  • Page 139 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Command Description Response DEL:nnn Delay length in seconds where -ACK: nnn is the number of seconds between 2 and 252 DFD:nnn Default delay length in seconds where -ACK:...
  • Page 140 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Command Description Response iii: Default delay jjj: Delay time settings where iii and jjj are a value in seconds between 2 and 252 kk: Remote settings where 80 = Pin 10 is actioned on remote port llllll: Level settings...
  • Page 141 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Command Description Response MOS:nn Mono or stereo selection where -ACK: nn selects between the two options where: 00 = Mono mode 01 = Stereo mode NOS:nn No switch on failure where...
  • Page 142 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Command Description Response SRQ: Status Request where -SRQ:aa_bb_cc_dd_ee_fg_hhhh_ii aa = Input1 lock status bb = Input2 lock status where 00 = unlocked and 01 = locked cc = Restore flash dd = Sync flash where 00 = Not flashing and 01 = flashing...
  • Page 143 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Command Description Response SSx:nn Source select where -ACK: x selects which input is being changed where: 1 = MAIN 2 = AUX nn selects which source is used for that particular input where:...
  • Page 144: Indication

    SI LE N CE DE TEC TO R S SCi for RB-DSD1 The free of charge Sonifex SCi software allows the user to control the RB-DSD1 remotely. The interface has three tabs including a unit setup page, an indication page and a miscellaneous options page.
  • Page 145: Unit Setup

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Source Label: The source which is currently being used is displayed here. Remote Start & Stop: The remote start and remote stop signals are displayed in the remote indicator panel.
  • Page 146: Select Synchronization Options

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S 1. Select Input Sources Select which source you would like to use for both the Main Input and the Aux Input from the drop down boxes labeled “Main is” and “Aux is” respectively. 2.
  • Page 147: Miscellaneous

    The RB-DSD1 firmware will at times be updated to add new features, or to correct any possible issues that may arise. Check for updates at: http://www.sonifex.co.uk/technical/software/ To update the firmware click on the button labeled “Update Firmware” and then select the downloaded firmware file.
  • Page 148: Special Modes

    SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Successful Update: The LED will turn green for two seconds and the unit will automatically reset and begin running the new code. Unsuccessful Update: The led will turn red for two seconds and the unit will return to running the last code used.
  • Page 149: Technical Specification For Rb-Dsd1

    S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Technical Specification For RB-DSD1 Audio Specification Dynamic Range: >138dB Distortion and Noise: <-137dB THD + N at 1kHz, ref 0dB FS Input &...
  • Page 150 SYN CHRON IS ER S, DEL AYS & SI LE N CE DE TEC TO R S Rear Panel Operational Controls Master Frequency Select: 32, 44.1, 48, 88.2, 96,176.4 or 192kHz via rear panel DIPSwitches Input Select: Main input from INPUT 1 or INPUT 2 via DIPSwitch Restore Mode: Automatic or manual, via DIPSwitch Remote Start:...
  • Page 151 S YNC HRO N IS E RS, D E L AYS & S I LEN CE D E TE C TO RS Physical Specifications Dimensions 48cm (W) x 10.8cm (D*) x 4.2cm (H) (1U) (Raw): 19” (W) x 4.3” (D*) x 1.7” (H) (1U) Dimensions 59cm (W) x 27.5cm (D) x 11cm (H) (Boxed):...
  • Page 152: Connectors & Cabling

    CON N EC TO RS & C AB LING Connectors & Cabling Many of the problems associated with installing and maintaining studio equipment are due to the use of poor cables or faulty connections. It is recommended that, wherever possible, pre-wired cables are purchased from recommended manufacturers.
  • Page 153: Fig 11-4: 25 Way D-Type Connectors

    CONN E C TO RS & C A BLI N G D-Type Connectors The following diagram shows the connection details for the D-type connectors as viewed from the rear of a Redbox : Male Female Pin 1 Pin 13 Pin 13 Pin 1 Pin 14 Pin 25...
  • Page 154: Glossary

    GLOS SA RY Glossary 1kHz 1000Hz or 1 kilohertz tone of 1kHz is often used for line-up and testing. ADSL Asynchronous Digital Subscriber Link - a broadband delivery system over standard telephone lines (between the exchange and the user). Audio Engineering Society. AES/EBU Professional digital audio standard covering frame format, connections and interfaces.
  • Page 155 G LO SSA RY Digital Audio Tape. dB (decibel) A ratio of two voltages or signal levels, expressed by the equation dB=20LOG(V1/V2) Adding the suffix “u” denotes that the signal is relative to 0.775V RMS. Adding the suffix “v” denotes that the signal is relative to 1V RMS. This is radio code signal sourced from Mainflingen, near Frankfurt in Germany, which can be used to automatically synchronize the Sentinel+ audio logger and PC time to an accurate atomic clock,...
  • Page 156 GLOS SA RY kbps Kilo-bits per second - the number of 1s or 0s transmitted or transferred in one second. Kilo Hertz (samples per second). Local Area Network - scheme where several computers on the same premises are connected together so that they can exchange data. Liquid Crystal Display (grey displays e.g.
  • Page 157 In most European countries, including the UK, the TBU must be approved for connection to telephone company lines. Sonifex TBU’s carry British Telecom and pan European approval. The Total Harmonic Distortion is the percentage presence of signals outside the measured reference frequency.
  • Page 158 NOTE S Redbox User Handbook No 1...
  • Page 159 N OT E S Redbox User Handbook No 1...
  • Page 160 w w w . s o n i f e x . c o . u k t:+44 (0)1933 650 700 f:+44 (0)1933 650 726 s a l e s @ s o n i fe x . co. u k...

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