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Summary of Contents for Focusrite RedNet 4
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Page 1: User Guide
User Guide www.focusrite.com FA0772-02... -
Page 2: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. - Page 3 The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE AND OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, SHOULD NOT BE PLACED ON THIS APPARATUS. ENVIRONMENTAL DECLARATION Compliance Information Statement: Declaration of Compliance procedure Product Identification: Focusrite RedNet Responsible party: American Music and Sound Address: 4325 Executive Drive Suite 300 Southaven MS 38672 Telephone: 800-431-2609 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
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Page 4: Table Of Contents
Focusrite RedNet Warranty and Service ......... -
Page 5: Introduction
INTRODUCTION Thank you for purchasing this Focusrite RedNet 4. RedNet 4 is a multichannel analogue mic/line preamplifier for use with a RedNet digital audio networking system. RedNet is a powerful, low latency, digital audio networking system designed specifically for music, recording studio and broadcast applications. It is based on Audinate’s Dante™, a well-established audio networking technology known for its extreme robustness. Dante - and the RedNet system - is capable of transporting up to 512 channels of bidirectional audio (at 48 kHz sample rate) over a single Gigabit Ethernet link. The number of channels available in your DAW will depend on the host method being used. In RedNet 4, Focusrite mic preamp technology is combined with 24-bit A-D conversion at sample rates of up to 192 kHz. It provides eight analogue inputs - each of which may be either microphone or line level - plus two front panel DI inputs. Each mic input has switchable 48 V phantom power and a high-pass filter, and pairs of channels may be ganged for stereo operation. As with other RedNet analogue interfaces, JetPLL™ technology and up to 119 dB of dynamic range are standard. Mic preamp parameters, including analogue gain, can be controlled both from the front panel, or remotely via the Ethernet connection using RedNet Control software. The inputs are electronically balanced, with the mic inputs on standard 3-pin XLR connectors and the line inputs on a 25-pin Dsub connector. Channels 1 and 2 can additionally be configured as DI inputs, for direct connection of instruments to ¼” jack sockets on the front panel. The front panel has a rotary gain control with numeric display, eight channel select buttons and switches for mic/line/DI selection, phantom power and high-pass filter. It also has LEDs confirming... -
Page 6: About This User Guide
About this User Guide This User Guide applies only to the RedNet 4 analogue interface. It provides information about installing a RedNet 4 and how to connect it into your studio system. You will also find a copy of the RedNet System User Guide included with the unit. This Guide provides a detailed explanation of the RedNet system concept, to help you achieve a thorough understanding of its capabilities. We recommend that all users, including those already experienced in digital audio networking, take the time to read through the System User Guide so that you are fully aware of all the possibilities that RedNet and its software has to offer. If either User Guide does not provide the information you need, be sure to consult www.focusrite.com/rednet, which contains a comprehensive collection of common technical support queries. Box Contents • RedNet 4 unit • RedNet 4 User Guide (this manual) • RedNet System User Guide • 2 m Cat6 Ethernet cable • IEC AC mains cable • Product registration card with Bundle Code. Registration gives access to: • RedNet Control... -
Page 7: Installation Guide
INSTALLATION GUIDE Unit connections and features RedNet 4 - Front Panel 1. AC Power switch 2. Individual LEDs indicating signal level at each analogue input: • Green – signal level above -42 dBFS • Yellow – signal level above -6 dBFS • Red – signal level has reached 0 dBFS 3. NETWORK status flags – two green LEDs confirming network status: • CONNECTED – illuminates when the unit is connected to an active Ethernet network • LOCKED – illuminates when a valid clock sync is received via the network 4. SAMPLE RATE indication – five yellow LEDs; only one of these (44 .1 kHz, 48 kHz, 88 .2 kHz, 96 kHz, 192 kHz) will be lit at a time, to confirm the sample rate that the system is running at. 5. CHANNEL 1 – 8 select buttons – these push-buttons select the input channel whose settings are to be adjusted with the controls [6], [7], [8] and [9] described below. These settings can also be controlled from RedNet Control. The channel selected is confirmed on the OLED [10]. -
Page 8: Rednet 4 - Rear Panel
13. MICROPHONE INPUTS 1-8 – eight 3-pin female XLR sockets for connecting microphones to the RedNet system via the built-in Focusrite mic preamps. All inputs are electronically balanced and each may have 48 V phantom power enabled. See page 12 for connector details. -
Page 9: Physical Characteristics
Physical Characteristics RedNet 4’s dimensions are shown in the diagram below: 247.5mm / 9.74" 465.0mm / 18.30" 76.2mm / 3" RedNet 4 requires 2U of vertical rackspace and at least 350 mm of rack depth, to allow for cables. RedNet 4 weighs 4.04 kg, and for installations in a fixed environment (e.g., a studio), the front panel mounting screws will provide adequate support. If the units are to be used in a mobile situation (e.g., flight-cased for touring, etc.), consideration should be given to using side support rails within the rack. RedNet 4 generates no significant heat, and is normally cooled by natural convection, though an internal cooling fan is fitted. We recommend that the unit should not be used in locations where the ambient temperature is greater than 30°C. However, if this is unavoidable, the fan can be turned on and off from RedNet Control. Ventilation is via slots in the enclosure at both sides. Do not mount RedNet 4 immediately above any other equipment which generates significant heat, for example, a power amplifier. Also, ensure that when mounted in a rack, the side vents are not obstructed. Power requirements RedNet 4 is mains-powered. It incorporates a ‘Universal’ power supply, which can operate on any AC mains voltage from 100 V to 240 V. The AC connection is made via a standard 3-pin IEC connector on the rear panel. A mating IEC cable is supplied with the unit, which should be terminated with a mains... -
Page 10: Other Rednet System Components
OTHER REDNET SYSTEM COMPONENTS The RedNet hardware range includes various types of I/O interface and a PCIe digital audio interface card which is installed in the system’s host computer. All the I/O units can be considered as “Break- Out” (and/or “Break-In”) boxes to/from the network, and all are built in mains-powered, 2U 19” rackmounting housings. There are also three software items, RedNet Control (see below), Dante Controller and Dante Virtual Soundcard. USING REDNET CONTROL A virtual depiction of RedNet 4 will appear on-screen in RedNet Control when a unit is included in the active system. Metering: per-channel bargraph meters are provided, scaled from -42 dBFS to 0 dBFS (scale is at left). -
Page 11: Appendix
APPENDIx Connector pinouts 8-channel analogue line input connector Connector type: 25-pin female Dsub Applies to: ANALOGUE INPUTS 1-8 Signal Signal Ch 8 ‘hot’ (+) Ch 8 ‘cold’ (-) Ch 8 screen Ch 7 ‘hot’ (+) Ch 7 cold (-) Ch 7 screen Ch 6 ‘hot’ (+) Ch 6 ‘cold’ (-) Ch 6 screen Ch 5 ‘hot’ (+) Ch 5 cold (-) Ch 5 screen Ch 4 ‘hot’ (+) Ch 4 ‘cold’ (-) Ch 4 screen Ch 3 ‘hot’ (+) Ch 3 cold (-) Ch 3 screen Ch 2 ‘hot’ (+) Ch 2 ‘cold’ (-) Ch 2 screen Ch 1 ‘hot’ (+) Ch 1 screen Ch 1 cold (-) - Page 12 Microphone inputs Connector type: 3-pin female XLR Applies to: MICROPHONE INPUTS Rear (solder side) of mating male connector Signal Screen Signal ‘hot’ (+) Signal ‘cold’ (-) Ethernet connector Connector type: RJ-45 receptacle Applies to: ETHERNET Cat6 Core White + Orange Orange White + Green Blue White + Blue Green White + Brown Brown...
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Page 13: Performance Specifications
Performance Specifications Microphone Inputs Gain range 0 dB; 8 to 63 dB in 1 dB steps Type Classic ISA-based, electronically balanced, Z = 2.4 kohms Max. input level +16 ±0.5 dBu; min. gain for 0 dBFS, R = 150 ohms, pad out Min. input level -47 ±0.5 dBu; max. gain for 0 dBFS, R = 150 ohms, pad out Frequency response 20 Hz – 55 kHz ±0.1 dB (-3 dB @ 80 kHz, f = 192 kHz); R = 150 ohms THD+N < 0.0007% @ -1 dBFS; +15 dBu input, R = 150 ohms, 20 Hz – 22 kHz Noise EIN -128 dB; 60 dB gain, R = 150 ohms, 20 Hz – 22 kHz Phantom power 48 V, independently switchable per-channel Signal-to-noise ratio 119 dB ‘A’-weighted; R = 150 ohms Line Inputs Gain range -12 to 42 dB in 1 dB steps Max. input level +24 ±0.5 dBu; min. gain for 0 dBFS Min. input level -30 ±0.5 dBu; max. gain for 0 dBFS Frequency response 20 Hz – 20 kHz ±0.1 dB THD+N < 0.003% @ -1 dBFS; +23 dBu input, min.gain, 20 Hz – 22 kHz Signal-to-noise ratio 117 dB ‘A’-weighted... -
Page 14: Focusrite Rednet Warranty And Service
Network connected Green Sync lock Green Sample rate Yellow x 5 Channel 1/2 source Yellow x 3 (mic/line/inst) Signal level Green x 8 (-42 dBFS); Yellow x 8 (-6 dBFS); Red x 8 (overload) Channel select buttons Channel function controls Input source, HPF, phantom power, Gain encoder Channel display Colour OLED; channel number, input source, gain Focusrite RedNet Warranty and Service All Focusrite products are built to the highest standards and should provide reliable performance for many years, subject to reasonable care, use, transportation and storage. Very many of the products returned under warranty are found not to exhibit any fault at all. To avoid unnecessary inconvenience to you in terms of returning the product please contact Focusrite support. In the event of a Manufacturing Defect becoming evident in a product within 12 months from the date of the original purchase Focusrite will ensure that the product is repaired or replaced free of charge. A Manufacturing Defect is defined as a defect in the performance of the product as described and published by Focusrite. A Manufacturing Defect does not include damage caused by post-purchase transportation, storage or careless handling, nor damage caused by misuse. Whilst this warranty is provided by Focusrite the warranty obligations are fulfilled by the distributor responsible for the country in which you purchased the product. In the event that you need to contact the distributor regarding a warranty issue, or an out-of-warranty chargeable repair, please visit: www.focusrite.com/distributors The distributor will then advise you of the appropriate procedure for resolving the warranty issue. In every case it will be necessary to provide a copy of the original invoice or store receipt to the distributor. In the event that you are unable to provide proof of purchase directly then you should... -
Page 15: Registering Your Product
This limited warranty is offered solely to products purchased from an Authorised Focusrite Reseller (defined as a reseller which has purchased the product directly from Focusrite Audio Engineering Limited in the UK, or one of its Authorised Distributors outside the UK). This Warranty is in addition to your statutory rights in the country of purchase. Registering your product For technical support, please register your product at: www.focusrite.com/register Customer Support and Unit Servicing You can contact Focusrite Customer Support at: Email: supportteam@focusrite.com Phone (UK): +44 (0)1494 462246 Phone (USA): +1 (310) 322-5500 Troubleshooting If you are experiencing problems with your RedNet 4, we recommend that in the first instance, you visit our Support Answerbase at: www.focusrite.com/answerbase...
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