Sonifex Redbox Series User Handbook Manual
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Sonifex Redbox Series User Handbook Manual

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Redbox
User Handbook No 5
RB-HD1 Stereo Headphone Amplifier With VCA Volume Control
RB-HD2 Dual Headphone Amplifier
RB-HD6 6 Way Stereo Headphone Distribution Amplifier
RB-DHD6 Digital 6 Way Headphone Distribution Amplifier
RB-MA1 Single Microphone Amplifier
RB-MA2 Dual Microphone Amplifiers
RB-MA2G Dual Microphone Amplifier with Gain
RB-DMA2 Dual Digital Microphone Amplifier
RB-ML2 Stereo Microphone & Line Level Limiter
RB-SL2 Twin Mono, Or Stereo, Limiter
RB-SM1 Single Stereo To Mono Converter
RB-SM2 Dual Stereo To Mono Converter
RB-LC3 3 Way Light/Power Controller
Manufacturers of audio & video
products for radio & TV broadcasters

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Summary of Contents for Sonifex Redbox Series

  • Page 1 Redbox User Handbook No 5 RB-HD1 Stereo Headphone Amplifier With VCA Volume Control RB-HD2 Dual Headphone Amplifier RB-HD6 6 Way Stereo Headphone Distribution Amplifier RB-DHD6 Digital 6 Way Headphone Distribution Amplifier RB-MA1 Single Microphone Amplifier RB-MA2 Dual Microphone Amplifiers RB-MA2G Dual Microphone Amplifier with Gain RB-DMA2 Dual Digital Microphone Amplifier RB-ML2 Stereo Microphone &...

  • Page 2: Table Of Contents

    Information in this document is subject to change without notice and does not represent a System Block Diagram commitment on the part of the vendor. Sonifex Ltd shall not be liable for any loss or damage Rear Panel Connections and Operation whatsoever arising from the use of information or any error contained in this manual.
  • Page 3 Contents 5 RB-MA1 Single Microphone Amplifier System Block Diagram Rear Panel Connections and Operation Introduction Technical Specifications RB-SM1, RB-SM2 System Block Diagram 13 RB-LC3 3 Way Light/Power Controller Rear Panel Connections and Operation Introduction Technical Specifications RB-MA1 System Block Diagram 6 RB-MA2 Dual Microphone Amplifiers Rear Panel Connections and Operation Introduction...
  • Page 4 Figures Figures Fig A: RB-RK1 Small Redbox Front Rack-mount Kit . Fig 6-4: Switch to Control LF Filter and Phantom Power Fig B: RB-RK2 Small Redbox Rear Rack-mount Kit. Fig 7-1: RB-MA2G Front Panel Fig C: RB-RK3 Large Redbox Rear Rack-mount Kit. Fig 7-2: RB-MA2G System Block Diagram Fig 1-1: RB-HD1 Front Panel Fig 7-3: RB-MA2G Rear Panel...

  • Page 5: Tel: +44 (0)1933 650

    Serial No: can increase your product warranty to 2 years and we can also keep you informed of any product design improvements or modifications. To register your product, please go online to www.sonifex.co.uk/register Sonifex Limited 61 Station Road Irthlingborough Northamptonshire...

  • Page 6: Product Warranty - 2 Year Extended

    Product Warranty - 2 Year Extended Purchaser. As standard, Sonifex products are supplied with a 1 year back to base This is the entire Contract between the parties relating to the subject warranty. In order to register the date of purchase and so that we can keep...

  • Page 7: Unpacking Your Product

    Warranty the defect has not arisen from a design made, furnished or At the request and expense of the Purchaser the Company will test specified by the Purchaser; the Goods to ascertain performance levels and provide a report of the results of that test. The report will be accurate at the time of the vii.

  • Page 8: Repairs & Returns

    Please note that all products are either switchable between 115V and 230V, or have a universal power supply. Repairs & Returns Please contact Sonifex or your supplier if you have any problems with your Fuse Rating Sonifex product. Email technical.support@sonifex.co.uk for the repair/ The product is supplied with a single fuse in the live conducting path of the upgrade/returns procedure, or for support &...

  • Page 9: Weee Directive

    All products manufactured by Sonifex Ltd have the WEEE directive label Connect the equipment in accordance with the connection details and placed on the case. Sonifex Ltd will be happy to give you information about before applying power to the unit, check that the machine has the correct local organisations that can reprocess the product when it reaches its “end...

  • Page 10: Fig B: Rb-Rk2 Small Redbox Rear Rack-Mount Kit

    Safety & Installation They can also be rack-mounted, with either the front, or rear of the Redbox positioned at the front of the rack (Note: this product is front rack-mounted as standard): 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 11: Rb-Hd1 Stereo Headphone Amplifier With Vca Volume Control

    Headphone Distribution Amplifiers - RB-HD1 1 RB-HD1 Stereo Headphone Amplifier With VCA Volume Control Introduction Fig 1-1: RB-HD1 Front Panel The RB-HD1 is a 1U rack-mount stereo headphone amplifier for driving A mono input can be mixed into the main headphone feed, for example, up to two pairs of professional stereo headphones from a single stereo or for mixing in talkback to the headphones.

  • Page 12: Front Panel Connections And Controls

    Headphone Distribution Amplifiers - RB-HD1 Front Panel Connections and Controls Volume Stereo Level Output Control Fig 1-3: RB-HD1 Front Panel Controls Stereo Outputs 1-2 (Mono Outputs1-2) The outputs available on the front and rear panel through ¼” stereo professional headphones. Each output is individually buffered. Volume Level Control The volume level control sets the output level of the two stereo headphone sockets.

  • Page 13: Fig 1-5: Rb-Hd1 Remote Connector

    Headphone Distribution Amplifiers - RB-HD1 Main Stereo Inputs (Left and Right) Mono Mix Input Gain Adjustment The XLR-3 input connectors can take balanced professional levels, or A rotary pre-set potentiometer can be used to adjust the gain of the mono unbalanced by using the volume control to increase the input level, and by mix input by 22dBu.

  • Page 14: Technical Specifications Rb-Hd1

    Headphone Distribution Amplifiers - RB-HD1 Technical Specifications RB-HD1 Audio Specifications RB-HD1 & RB-HD2: Physical Specifications Maximum Input Level: +28dBu Dimensions (Raw): 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U) 19” (W) x 4.3” (D) x 1.7” (H) (1U) Dimensions (Boxed): 53cm (W) x 20.5cm (D) x 6cm Input Gain Range: -12dB to +20dB (pre-set pots) (RB-HD2)

  • Page 15: Redbox Handbook

    Headphone Distribution Amplifiers - RB-HD2 2 RB-HD2 Dual Headphone Amplifier Introduction Fig 2-1: RB-HD2 Front Panel The RB-HD2 is a high performance 2-way stereo headphone distribution The XLR-3 inputs are electronically balanced and can be wired unbalanced. amplifier for driving up to 2 pairs of professional stereo headphones from There are two pre-set controls on the rear panel that adjust the level of the a single stereo or mono input.

  • Page 16: Front Panel Connections And Controls

    Headphone Distribution Amplifiers - RB-HD2 Front Panel Connections and Controls Stereo Stereo Output Output Fig 2-3: RB-HD2 Front Panel Controls Volume Volume Level Control Level Control Stereo Outputs 1-2 (Mono Outputs 1-2) The outputs available on the front panel through ¼” stereo jack sockets headphones.

  • Page 17: Technical Specifications Rb-Hd2

    Headphone Distribution Amplifiers - RB-HD2 Technical Specifications RB-HD2 Main Stereo Inputs (Left and Right) The XLR-3 input connectors can take balanced professional levels, or Audio Specifications RB-HD2: unbalanced by using the volume control to increase the input level, and by connecting the non-phase to the signal ground.

  • Page 18: Rb-Hd6 6 Way Stereo Headphone Distribution Amplifier

    Headphone Distribution Amplifiers - RB-HD6 3 RB-HD6 6 Way Stereo Headphone Distribution Amplifier Introduction Fig 3-1: RB-HD6 Front Panel The XLR-3 inputs are electronically balanced and can be wired unbalanced. The RB-HD6 is a high performance 6-way stereo headphone distribution There is a master control that adjusts the level of the master signal to all amplifier for driving up to 6 pairs of professional stereo headphones from the outputs.

  • Page 19: System Block Diagram

    Headphone Distribution Amplifiers - RB-HD6 System Block Diagram Fig 3-2: RB-HD6 System Block Diagram...

  • Page 20: Rear Panel Connections And Operation

    Headphone Distribution Amplifiers - RB-HD6 Rear Panel Connections and Operation Stereo Inputs Channel Insertion Inputs Stereo/Mono Operation Fig 3-3: RB-HD6 Rear Panel Stereo Input (Left and Right) Each connector can also be individually configured as a parallel output The XLR-3 input connectors can take balanced professional levels, or providing the same signal as the output on the front of the unit.

  • Page 21: Front Panel Connections And Controls

    Headphone Distribution Amplifiers - RB-HD6 Stereo Outputs 1-6 (Mono Outputs 1-6) Input/Output The outputs available on the front panel through ¼” stereo jack sockets Jumpers Left JP1 & 2 JP5 & 6 JP9 & 10 JP13 & 14 JP17 & 18 JP21 & 22 to Alter Right JP3 &...

  • Page 22: Technical Specifications Rb-Hd6

    Headphone Distribution Amplifiers - RB-HD6 Technical Specifications RB-HD6 Audio Specifications Maximum Input Level: +28dBu Override Inputs: +3dBu for full volume at +18dB gain Individual Volume Control:-60dB to +18dB gain Master Volume Control: ±10dB gain Connections Main Stereo Inputs: 2 x XLR 3 pin female (Balanced, can be wired unbalanced Insert Inputs &...

  • Page 23: Rb-Dhd6 Digital 6 Way Headphone Distribution Amplifier

    Headphone Distribution Amplifiers - RB-DHD6 4 RB-DHD6 Digital 6 Way Headphone Distribution Amplifier Introduction Fig 4-1: RB-DHD6 Front Panel The RB-DHD6 digital 6 way headphone distribution amplifier A button located on the rear panel is used to select either the AES/EBU, is a 1U rack-mount which receives a digital input signal, as or S/PDIF, input and de-emphasis on the output can be controlled via either AES/EBU or S/PDIF and converts it to 6 individually...

  • Page 24: Rear Panel Connections And Operation

    Headphone Distribution Amplifiers - RB-DHD6 Front Panel Indicators & Controls Volume Controls Sync & Power LED Headphone Outputs Fig 4-3: RB-DHD6 Front Panel Controls Sync & Power Indicator Headphone Outputs The headphone outputs on the front panel consist of six ¼” stereo The LED on the front panel is normally red to indicate that power is present on the unit.

  • Page 25: Fig 4-5: Rb-Dhd6 Status Select Switches

    Headphone Distribution Amplifiers - RB-DHD6 AES/EBU Input If de-emphasis is ‘on’ (switch 1) the RB-DHD6 will decode 50/15μs emphasis when indicated by certain channel status bits in the incoming digital audio following connections: data. When ‘off’, no de-emphasis is applied. The switch is ‘on’ when it is Pin 1: Screen down.

  • Page 26: Technical Specifications Rb-Dhd6

    Headphone Distribution Amplifiers - RB-DHD6 Technical Specifications RB-DHD6 Physical Specifications Dimensions (Raw): 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U) Audio Specification 19” (W) x 4.3” (D) x 1.7” (H) (1U) Dimensions (Boxed): 53cm (W) x 20.5cm (D) x 6cm (H) 21”...

  • Page 27: Rb-Ma1 Single Microphone Amplifier

    Microphone Amplifiers & Limiters - RB-MA1 RB-MA1 Single Microphone Amplifier Introduction Fig 5-1: RB-MA1 Front Panel The RB-MA1 consists of an independent low-noise microphone pre- The XLR-3 line output is electronically balanced and can be wired amplifier for converting microphone level signals to line level, or for driving unbalanced by grounding the non-phase signal, allowing you to feed both long lines from microphones to mixing equipment.

  • Page 28: Rear Panel Connections And Operation

    Microphone Amplifiers & Limiters - RB-MA1 Rear Panel Connections and Operation Input Gain Phantom Power Control Mic Input LF Filter Output Using Phantom Powered Microphones Fig 5-3: RB-MA1 Rear Panel For the input channel there are independent switches to provide phantom Mic Inputs power at +48V to the connected microphones.

  • Page 29: Technical Specifications Rb-Ma1

    Microphone Amplifiers & Limiters - RB-MA1 Technical Specifications RB-MA1 Equipment Type Audio Specifications RB-MA1: Single microphone amplifier Maximum Input Level: -10dBu Maximum Output Level: +28dBu Physical Specifications Dimensions (Raw): 28cm (W) x 10.8cm (D) x 4.2cm (H) (1U) Low Frequency Roll-Off: 125Hz @ 6dB/octave 11”...

  • Page 30: Rb-Ma2 Dual Microphone Amplifiers

    Microphone Amplifiers & Limiters - RB-MA2 RB-MA2 Dual Microphone Amplifiers Introduction Fig 6-1: RB-MA2 Front Panel The RB-MA2 dual microphone amplifier consists of two low noise pre The XLR-3 line output is electronically balanced and can be wired amplifiers for converting microphone level signals to line level, or for driving unbalanced by grounding the non-phase signal, allowing you to feed both long lines from microphones to mixing equipment.

  • Page 31: Rear Panel Connections And Operation

    Microphone Amplifiers & Limiters - RB-MA2 Rear Panel Connections and Operation Input Gain Phantom Power Control Switch Mic Input LF Filters Stereo Outputs Using Phantom Powered Microphones Fig 6-3: RB-MA2 Rear Panel. For the input channel there are independent switches to provide phantom Mic Inputs power at +48V to the connected microphones.

  • Page 32: Technical Specifications Rb-Ma2

    Microphone Amplifiers & Limiters - RB-MA2 Technical Specifications RB-MA2 Audio Specifications Physical Specifications Maximum Input Level: -10dBu Dimensions (Raw): 28cm (W) x 10.8cm (D) x 4.2cm (H) (1U) 11” (W) x 4.3” (D) x 1.7” (H) (1U) Maximum Output Level: +28dBu Dimensions (Boxed): 36cm (W) x 20.5cm (D) x 6cm (H) 14.2”...

  • Page 33: Rb-Ma2G Dual Microphone Amplifier With Gain

    Microphone Amplifiers & Limiters - RB-MA2G 7 RB-MA2G Dual Microphone Amplifier with Gain Introduction Mic 1 Mic 2 Control Knob Control Knob Power LED Meter Fig 7-1: RB-MA2G Front Panel The RB-MA2G consists of two independent low-noise microphone pre- The XLR-3 line output is electronically balanced and can be wired amplifiers for converting microphone level signals to line level, or for driving unbalanced by grounding the non-phase signal, allowing you to feed both long lines from microphones to mixing equipment.

  • Page 34: System Block Diagram

    Microphone Amplifiers & Limiters - RB-MA2G System Block Diagram Balanced Microphone Ultra Low Noise Professional Balanced Input 1 High Gain Amplifier Output 1 -12dB +12dB Gain Gain L.F. Filter in/Out Phantom (Pre-set) Front Panel Power +48V Phantom Power On/Off Front Panel LED Level Meter Balanced Microphone Ultra Low Noise Input 2...

  • Page 35: Front Panel Controls

    Microphone Amplifiers & Limiters - RB-MA2G Mic Inputs Using the LF Filter The XLR 3 pin sockets used for the microphone are electronically balanced. A switch also provides control for a high pass filter with low frequency They have the following connections: roll off at 125Hz.

  • Page 36: Technical Specifications Rb-Ma2G

    Microphone Amplifiers & Limiters - RB-MA2G Technical Specifications RB-MA2G Audio Specifications Equipment Type Maximum Input Level: +4dBu RB-MA2G: Dual microphone amplifier with gain Maximum Output Level: +28dBu Physical Specifications Low Frequency Roll-Off: 125Hz @ 6dB/octave Dimensions (Raw): 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U) Gain Range: Adjustable 12dB to 80dB gain 19”...

  • Page 37: Rb-Dma2 Dual Digital Microphone Amplifier

    Microphone Amplifiers & Limiters - RB-DMA2 RB-DMA2 Dual Digital Microphone Amplifier Introduction Fig 8-1: RB-DMA2 Front Panel The RB-DMA2 consists of two independent low-noise necessary clock signals are generated internally from an on board master microphone pre-amplifiers for converting microphone level clock at a selectable rate (32kHz, 44.1kHz, 48kHz, 64kHz, 88.2kHz or 96kHz).

  • Page 38: System Block Diagram

    Microphone Amplifiers & Limiters - RB-DMA2 sample rates of 32kHz, 44.1kHz and 48kHz, the status bits can be either set to Professional or Consumer Mode. The bit depth of the digital output can be set to 16, 20 or 24 bits, with a psycho acoustic noise filter used to dither signals below 24 bit.

  • Page 39: Rear Panel Connections And Operation

    Microphone Amplifiers & Limiters - RB-DMA2 Sync & Power Indicator Disabling the Fine Gain Control Knob The LED on the front panel is normally red to indicate that power is present Each fine control also has the ability to be disabled via a jumper (JP1 for on the unit.

  • Page 40: Stock Code

    Microphone Amplifiers & Limiters - RB-DMA2 RB-DMA2 Inputs S/PDIF Output Mic Inputs The XLR 3 pin sockets used for the microphone inputs are electronically Analogue Line Outputs balanced. They have the following connections: There is an analogue output on XLR 3 pin plug for each microphone input. Pin 1: Screen The plug has the following connections: Pin 2: Phase...
  • Page 41 Microphone Amplifiers & Limiters - RB-DMA2 Output Routing Frequency and Sync Mode Rotary Switch This uses switch 2 of the STATUS dipswitch block. When switch 2 is “ON”, This rotary switch is used to select the Synchronisation Mode and to the audio signal from Mic input 1 is copied to both channels of the digital select the frequency of the digital output when using the on-board clock output signal (channel B = channel A) and Mic input 2 is ignored (Dual...

  • Page 42: Technical Specifications Rb-Dma2

    Microphone Amplifiers & Limiters - RB-DMA2 dynamic range will be 1-2dB lower than the best possible performance). Frequencies and Sync Modes The calibration cycle calibrates the gain and the zero reference of the A/D Rotary Mode Sample converter. Switch Frequency Number (kHz) To calibrate the RB-DMA2, set the rotary FREQUENCIES AND SYNC MODES...
  • Page 43 Microphone Amplifiers & Limiters - RB-DMA2 Low Frequency Roll-off: 125Hz @ 6dB/octave Analogue Output Level: +18dBu Ref. FSD Operational Controls & Indicators Bit Depth: 16, 20 or 24 bits via DIP switch Digital Output Select: AES/EBU or S/PDIF, via push switch Sample Frequencies: 32kHz –...

  • Page 44: Rb-Ml2 Stereo Microphone & Line Level Limiter

    Microphone Amplifiers & Limiters - RB-ML2 9 RB-ML2 Stereo Microphone & Line Level Limiter Introduction Fig 9-1: RB-ML2 Front Panel The RB-ML2 is a stereo microphone and line level limiter. The unit is mainly The outputs of these amplifiers are passed through a VCA limiter circuit used where assistance with level control is required, for protection of mixer that can operate jointly on the signals in stereo mode, or independently in inputs and to prevent distortion.

  • Page 45: System Block Diagram

    Microphone Amplifiers & Limiters - RB-ML2 System Block Diagram Gain LF Filter Mic/Line Limiter Output Gain Mic/Line Stage Input 1 Phantom Power (48V) Gain and Limit Line Control Gain LF Filter Mic/Line Gain and Input 2 Limit Control Phantom Power Mic/Line (48V) Output...

  • Page 46: Fig 9-4: Switch To Control Lf Filter And Phantom Power

    Microphone Amplifiers & Limiters - RB-ML2 Mic / Line Inputs (towards the arrow). The filter only applies when the input is set to mic The XLR 3 pin sockets used for the mic/line inputs are electronically mode. balanced. They have the following connections: Mic / Line Outputs Pin 1: Screen The XLR 3 pin plug output connector is electronically balanced and can be...

  • Page 47: Technical Specifications Rb-Ml2

    Microphone Amplifiers & Limiters - RB-ML2 Mode Select Switch Connections The mode switch changes the unit from dual mono to stereo mode. In Analogue Input: 2 x XLR 3 pin female mic or line switchable stereo mode, only the pre-sets for channel 1 (left) are active and they are (Balanced)(L &R) applied to both channels.

  • Page 48: 10 Rb-Sl2 Twin Mono, Or Stereo, Limiter

    Microphone Amplifiers & Limiters - RB-SL2 10 RB-SL2 Twin Mono, Or Stereo, Limiter Introduction Fig 10-1: RB-SL2 Front Panel The RB-SL2 is a stereo, or twin independent mono, VCA limiter for use in A rear panel switch changes the unit from dual mono to stereo, when only news-rooms and other locations where the correct level into recording the pre-sets for channel 1 (left) are active and apply to both channels.

  • Page 49: System Block Diagram

    Microphone Amplifiers & Limiters - RB-SL2 System Block Diagram Limiter Stage Balanced Balanced Professional Professional Input L Output L Gain and Limit Control Select Stereo/Mono Gain and Limit Control Balanced Balanced Professional Professional Input R Output R Limiter Stage Fig 10-2: RB-SL2 System Block Diagram Rear Panel Connections and Operation Stereo Outputs...
  • Page 50 Microphone Amplifiers & Limiters - RB-SL2 Outputs Mode Switch The XLR 3 pin plug connectors are electronically balanced and can be wired This switch changes the unit from dual mono to stereo mode. In stereo unbalanced to accept an output from domestic equipment. They have the mode, only the pre-sets for channel 1 (left) are active and they are applied following connections: to both channels.

  • Page 51: Technical Specifications Rb-Sl2

    Microphone Amplifiers & Limiters - RB-SL2 Technical Specifications RB-SL2 Equipment Type Audio Specifications RB-SL2: Twin mono, or stereo, limiter Maximum Input Level: +28dBu Maximum Output Level: +28dBu Physical Specifications Dimensions (Raw): 28cm (W) x 10.8cm (D) x 4.2cm (H) (1U) 11”...

  • Page 52: 11 Rb-Sm1 Single Stereo To Mono Converter

    Stereo to Mono Converters - RB-SM1 11 RB-SM1 Single Stereo To Mono Converter Introduction Fig 11-1: RB-SM1 Front Panel The RB-SM1 consists of an independent converter that will produce a fully the non-phase signal, allowing you to feed both balanced and unbalanced buffered and balanced mono line output from a stereo input.

  • Page 53: Rear Panel Connections And Operation

    Stereo to Mono Converters - RB-SM1 Rear Panel Connections and Operation Stereo Inputs Output Mono Gain Control Output Fig 11-3: RB-SM1 Rear Panel Stereo Inputs Mono Output The input’s are a stereo pair consisting of two XLR 3 pin sockets The XLR 3 pin mono output connectors are electronically balanced with an wired unbalanced to accept an output from domestic equipment.

  • Page 54: Technical Specifications Rb-Sm1

    Stereo to Mono Converters - RB-SM1 Technical Specifications RB-SM1 Audio Specifications Equipment Type RB-SM1: Dual stereo to mono converter Maximum Input Level: +28dBu Maximum Output Level: +28dBu Physical Specifications Dimensions (Raw): 28cm (W) x 10.8cm (D) x 4.2cm (H) (1U) 11”...

  • Page 55: Rb-Sm2 Dual Stereo To Mono Converter Introduction

    Stereo to Mono Converters - RB-SM2 12 RB-SM2 Dual Stereo To Mono Converter Introduction Fig 12-1: RB-SM2 Front Panel The RB-SM1 consists of an independent converter that will produce a fully The XLR-3 line output’s are electronically balanced with an output buffered and balanced mono line output from a stereo input.

  • Page 56: Rear Panel Connections And Operation

    Stereo to Mono Converters - RB-SM2 Rear Panel Connections and Operation Stereo Inputs Stereo Inputs Mono Output Mono Output Output Gain Control Fig 12-3: RB-SM2 Rear Panel Mono Output 1 & 2 Stereo Inputs 1 & 2 The input’s are a stereo pair consisting of two XLR 3 pin sockets The XLR 3 pin mono output connectors are electronically balanced with an the non-phase signal, enabling you to feed both balanced and unbalanced wired unbalanced to accept an output from domestic equipment.

  • Page 57: Technical Specifications Rb-Sm1, Rb-Sm2

    Stereo to Mono Converters - RB-SM2 Technical Specifications RB-SM2 Equipment Type Audio Specifications RB-SM2: Single stereo to mono converter Maximum Input Level: +28dBu Maximum Output Level: +28dBu Physical Specifications Dimensions (Raw): 28cm (W) x 10.8cm (D) x 4.2cm (H) (1U) 11”...

  • Page 58: 13 Rb-Lc3 3 Way Light/Power Controller

    Power Controllers - RB-LC3 13 RB-LC3 3 Way Light/Power Controller Introduction Fig 13-1: RB-LC3 Front Panel The RB-LC3 is a triple output switching unit for controlling external mains External control of the switched mains outputs is via the 15 way D-type plug indicators, primarily studio status lights for broadcasting applications, connector.

  • Page 59: System Block Diagram

    Power Controllers - RB-LC3 System Block Diagram Zero Cross-point Switch Mains Output 1 Zero Cross-point Switch Mains Mains Input Output 2 Remotes Zero Cross-point Switch Settings Mains Control Output 3 Status Detection & Ring Mute Telephone Telephone Line Input Handset Output Fig 13-2: RB-LC3 System Block Diagram Rear Panel Connections and Operation Remote External...
  • Page 60 Power Controllers - RB-LC3 Switched Mains Outputs Pin 7: Ring Mute (Active High) The 3 off IEC connectors provide the switched mains outputs. Each output Pin 8: Ring Mute (Active Low) is rated at 1A and is individually fused. A neon indicator shows when the Pin 9: Output 1 Tally (Open Collector) output is live.

  • Page 61: Fig 13-4: Output 1 Configuration Setting

    Power Controllers - RB-LC3 Setting No Description Flash Output 1 when telephone rings. Output 1 On when telephone is off-hook Output 1 On when telephone is off-hook Flash Output 1 when telephone rings Output 1 On when Remote 1 asserted Output 1 On when Remote 2 asserted Output 1 On when Remote 3 asserted Flash Output 1 when Remote 1 asserted...

  • Page 62: Fig 13-5: Output 2 Configuration Settings

    Power Controllers - RB-LC3 The available settings for output 2, configured using switches Sw5 to Sw8, are detailed below: Setting No Description Flash Output 2 when telephone rings. Output 2 On when telephone is off-hook Output 2 On when telephone is off-hook Flash Output 2 when telephone rings Output 2 On when Remote 1 asserted Output 2 On when Remote 2 asserted...

  • Page 63: Fig 13-6: Output 3 Configuration Settings

    Power Controllers - RB-LC3 The available settings for output 3, configured using switches Sw9 to Sw12, are detailed below: Setting No Sw10 Sw11 Sw12 Description Flash Output 3 when telephone rings. Output 3 On when telephone is off-hook Output 3 On when telephone is off-hook Flash Output 3 when telephone rings Output 3 On when Remote 1 asserted Output 3 On when Remote 2 asserted...

  • Page 64: Technical Specifications Rb-Lc3

    Power Controllers - RB-LC3 Technical Specifications RB-LC3 Connections Mains Input: Non-filtered IEC, 110V-240V auto-adjusting, fused, 6W maximum Fuse Rating (Mains Input):Anti-surge fuse 100mA 20 x 5mm (230VAC) Anti-surge fuse 250mA 20 x 5mm (115VAC) Mains Outputs: 3 x Non-filtered IEC plugs, 1A fused Fuse Rating (Mains Outputs): 3 x Anti-surge fuse 1A 20 x 5mm Telephone: 2 x RJ11-4 sockets...
  • Page 65 Notes...
  • Page 66 Notes...
  • Page 67 Notes...
  • Page 68 . s o n i f e x . c o . u k t:+44 (0)1933 650 700 f:+44 (0)1933 650 726 sales@sonifex.co.uk...

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