Table of Contents
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RAVE
"S" series Digital Audio Router
U S E R M A N U A L
RAVE 80s
RAVE 81s
RAVE 88s
RAVE 160s-24
RAVE 161s-24
RAVE 188s-24
(8 AES3 outputs)
(8 AES3 inputs)
(4 AES3 inputs + 4 AES3 outputs)
(16 analog audio outputs)
(16 analog audio inputs)
(8 analog audio ins + 8 analog audio outs)
TD-000070-00
*TD-000070-00*
Rev. C
1
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Summary of Contents for QSC S series
- Page 1 RAVE “S” series Digital Audio Router U S E R M A N U A L RAVE 80s RAVE 81s RAVE 88s RAVE 160s-24 RAVE 161s-24 RAVE 188s-24 (8 AES3 outputs) (8 AES3 inputs) (4 AES3 inputs + 4 AES3 outputs) (16 analog audio outputs) (16 analog audio inputs) (8 analog audio ins + 8 analog audio outs)
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Page 2: Explanation Of Graphical Symbols
Unterlagen des Gerätes hin. “QSC” and the QSC logo are registered with the U.S. Patent and Trademark Office. RAVE™ is a trademark of QSC Audio Products, Inc. CobraNet™ is a trademark of Peak Audio, Inc. RISK OF ELECTRIC SHOCK... -
Page 3: Table Of Contents
RS-232 Port Information ... 32 Resources ... 33 How to contact QSC Audio Products and Warranty Information ... 34 Note: Page numbering starts with cover as page 1. This is done to keep electronically-distributed document page numbering synchronized with the printed document. -
Page 4: Introduction
INTRODUCTION: RAVE™ Digital Audio Router products provide a means of transporting CobraNet™ audio signals over a Fast Ethernet network. Using standard network hardware and physical me- dia, a RAVE system has a maximum capacity of 64 audio chan- nels on a 100BASE-TX repeater segment and the ability to support hundreds of audio channels on a switched Ethernet LAN. -
Page 5: Illustration Of Rave Unit
INTRODUCTION: Illustration of RAVE units Front view of a RAVE 161s-24; other models are similar Power LED Rear view, from top: RAVE 160s-24, RAVE 188s-24, RAVE 161s-24, RAVE 80s, RAVE 88s and RAVE 81s Audio I/O section Bundle assignment selector switches Network status LEDs (behind cover) Sync connections... -
Page 6: Glossary
INTRODUCTION: Glossary AES 3— A digital audio format specification approved by the Audio Engineering Society and European Broad- cast Union for inter-device conveyance of a dual- channel (stereo) digital audio signal. Also called AES/EBU. This specification is periodically revised and amendments are published by the AES. Bundle—The basic network transmission unit under Cobra- Net. - Page 7 Introduction: Glossary (continued) Repeater —Network repeaters are commonly referred to as Ethernet multi-port hubs. A data signal arriving in any port is reproduced out all other ports on the hub. A repeater hub does not buffer or interpret the data passing through it. An Ethernet network is typically wired in a star configuration and the repeater hub is at the center.
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Page 8: How It Works
Introduction: How It Works Ethernet networks are used most often for data communica- tions, such as with file or print sharing on an office LAN (Lo- cal Area Network). A typical application might include a num- ber of PCs or workstations, servers and shared printers all connected to common Ethernet hardware. - Page 9 Introduction: How It Works (continued) In default mode, the signals from the first 8 audio channel in- puts will be grouped together in a bundle whose “network iden- tifier” number is specified from the front-panel hexadecimal switches or through the management interface. The bundle will then be sent over the network to the destination devices that are configured, or set to receive the bundle.
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Page 10: Channel Routing
Introduction: Channel Routing Channel Routing A RAVE network handles routing in bundles of up to eight audio channels. Each bundle of audio transmitted on the network oc- cupies a unique identifier, or number. In stand-alone mode, each RAVE device handles two bundles—two sent, two received, or one of each. -
Page 11: Installation
Installation: Pre-Installation Level Setting (RAVE 160/161/188 only) PRE-INSTALLATION PREPARATION: ANALOG AUDIO SIGNAL LEVELS (RAVE 160/161/188 ONLY) The RAVE models supporting analog audio inputs and/or outputs may require signal level setup to achieve optimum performance. Level setup must be configured before rack-mounting the units. The digital AES3 (digital audio) models do not require any adjustment. - Page 12 Installation: Pre-Installation Level Setting (RAVE 160/161/188 only) Input Level Sensitivity (RAVE 161s-24 and 188s-24 only) Input level sensitivity is the RMS analog signal level at which a sinusoidal waveform will produce a digital full scale signal in the device. The available settings are +24dBu, +18dBu, and +12 dBu (reference: 0 dBu = 0.775 volt), which are 12.3, 6.1, and 3.1 volts rms, respectively.
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Page 13: Rack Mounting
Installation: Rack Mounting RACK MOUNTING (ALL MODELS) A RAVE unit is 1 RU (1 rack space) high and mounts in any standard 19-inch wide equipment rack. The top cover of the chassis must be in place and properly secured with screws before you can mount the RAVE unit. •... -
Page 14: Analog Audio Connections (Rave 160/161/188 Only)
Connections: Analog Audio Inputs/Outputs (RAVE 160/161/188) ANALOG AUDIO CONNECTIONS The analog RAVE models (RAVE 160 /161 and 188) use normal analog balanced audio inputs and outputs, with three terminals per channel: Hi (+), Lo (-) and Shield.. Analog audio inputs and outputs connect using detachable terminal strip headers on the rear panel of the RAVE unit. -
Page 15: Digital Audio Connections (Rave 80/81/88 Only)
Connections: Digital Audio Inputs/Outputs (RAVE 80/81/88) DIGITAL AUDIO CONNECTIONS The digital RAVE models (RAVE 80/81/88) use the AES3 (also known as AES/EBU) digital audio standard. Each AES3 XLR jack carries 2 channels of digital audio, each carrying between 16- and 24 bits per sample. -
Page 16: Ac Power
Connections: AC Power and Fuses, Master/Sync Output and Slave/Sync Input AC POWER: • The detachable AC power cord connects to the RAVE at the rear-panel IEC connector. • There is no power switch; the AC disconnect device is the detachable power cord. •... -
Page 17: Redundant Configuration
Connections: Sync Connection for Redundant Operation, RS-232 Port Rear panel coax cable and Ethernet connections Configuration example for redundant audio transmission Note that audio connections must be present at both devices. This may be accomplished through the use of “Y” connections or by channel duplication from a console or other source device. Configuration example for redundant audio reception Note that destination devices will need to be connected to audio sources from both RAVEs. -
Page 18: Synchronizing To An Aes3 (Aes/Ebu) Stream
Connections: Synchronizing the CobraNet Network to an AES/EBU Stream SYNCHRONIZING TO AES/EBU The RAVE “s” series AES/EBU input models provide some additional means for synchronizing the CobraNet network and deriving on-board clocks. In addition to the on-board PLL and external synch inputs available on all models, the AES/EBU input models allow the user to synchronize the network to a 48 kHz AES/EBU input stream. - Page 19 Connections: Synchronizing the CobraNet Network to an AES/EBU Stream SYNCHRONIZING TO AES/EBU Method 2: Use the recovered AES 48 kHz clock as an “external clock” source. When the jumper at header J37 is set to “AES”, the CobraNet interface uses the recovered 48 kHz clock at the first XLR connector (inputs 1 and 2) as the external synchronization clock.
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Page 20: Operation
Operation: Network Activity (Status) Indicators STATUS INDICATORS The eight status indicator LEDs display the operating condition of the RAVE unit and its connection to the Ethernet network. They are color coded such that green LEDs, when illuminated, signify a good or normal condition, while red LEDs signify a problem. - Page 21 Operation: Network Activity (Status) Indicators This LED illuminates green for at least 50 milliseconds while the unit is transmitting Ethernet data. This indicator will blink when transmit activity is present. The activity of this indicator is dependent on the RAVE model and bundle type. This is a physical layer indicator and does not guarantee that data is being transmitted properly from the CobraNet core.
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Page 22: Audio Metering
Operation: Audio Signal Level Indicators AUDIO SIGNAL LEVEL INDICATORS The tricolor metering LEDs provide visibility to various configuration and metering information. Their primary purpose is to detect the presence of audio signal. However, the metering LEDs also perform device monitoring functions such as indicat- ing the CobraNet firmware revision installed in the RAVE, error reporting, indicating “write”... -
Page 23: Error Reporting
Operation: Audio Signal Level Indicators ERROR REPORTING Each release of the CobraNet firmware has an associated list of error codes, which identifies a specific cause in the event that a unit is failing a self-test or is experiencing operational problems. The RAVE devices may display this error code on the right 8-channel group of the metering LEDs. -
Page 24: Program And Software "Kill" Mode
Operation: Program/Software Kill, Routing PROGRAM AND “SOFTWARE KILL” When all front panel hexadecimal switches are set to “FFFF”, the RAVE unit enters a utility mode. This mode can be useful when reprogramming a RAVE or in disabling the software mode of operation. Reprogramming through the RS-232 connection has given way to the network method, which uses TFTP (trivial file transfer protocol) over the Ethernet connection. - Page 25 Operation: Routing (continued) Switches set to “10” through “FE” hex assign unicast bundles. Switches set to “01” through “0F” hex assign multicast bundles. Switch settings “00” and “FF” hex are reserved for special functions. “FF” hex puts the unit into utility mode for programming and also forces software kill. “00”...
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Page 26: Network Design Considerations
Engineer’s specifications, topology references, lists of ap- proved network hardware and design guidelines are avail- able on the Peak Audio website (www.peakaudio.com). Addi- tionally, QSC Audio Products’ website (www.qscaudio.com) posts up-to-date information on applications specific to RAVE and provides links to related resources. It is recommended that these resources be referred to before designing a Cobra- Net LAN. - Page 27 Network Design Considerations: When a switch is shared with non-CobraNet data, it should be configured so that CobraNet audio is isolated from conventional data communications. Partitioning is usually accomplished by enabling multiple VLANs. Co- braNet data should be given the highest network prior- ity in order to prevent the loss of audio.
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Page 28: Repeater Networks
Network Design Considerations: REPEATER NETWORKS • RAVE supports operation on network repeaters. These repeaters should be 100 Mbps class II devices. Collisions are prevented through CobraNet’s propri- etary “order persistent” media access scheme. RAVE invokes this access scheme by auto-sensing its link partner (network hardware). -
Page 29: Specifications
Specifications GENERAL AC Line Voltage: 100V to 240V, auto-configuring AC Line frequency: 50 Hz to 60 Hz, auto-configuring Maximum AC Line Current Draw: 600 mA @ 100V Thermal Operating Range: 0° C to 65° C ANALOG INPUTS Connector Type: 3-pin Phoenix (euro-style), detachable terminal block Audio Resolution (Tx): 16, 20, 24-bit (software configurable) Input Sensitivity:... -
Page 30: Aes3 Outputs
Specifications ANALOG OUTPUTS (continued) Output Impedance: Frequency Response: Dynamic Range, typical: Dynamic Range, worst-case: Idle Channel Noise (A-weighted): THD+N @ 997 Hz: THD+N (20 Hz to 20 kHz): Inter-channel Isolation: AES3 OUTPUTS Connector Type: Audio Resolution (Rx): Output Impedance: REAR PANEL CONNECTIONS Female RJ-45 Female DB-9 Female BNC (x2):... - Page 31 Specifications AUDIO BUFFERING 256 samples (5.333 microseconds) NETWORK Protocol: 100 Mbps FAST Ethernet (FE) Configuration: Network repeaters OR switches Audio Channel Capability: 64 channels maximum PER repeater LAN, scalable for network switches Management Protocol: SNMP (Simple Network Management Protocol) Auxiliary Feature Support: Serial data support of RS-232 bridged onto Ethernet Device upgrade via TFTP Device configuration via hardware interface OR software interface...
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Page 32: Appendix
Appendix ETHERNET CABLING This diagram shows the pinout for standard unshielded twisted-pair (UTP) network cable. Both ends of the cable are wired identically. A crossover cable has the RX and TX wire pairs switched around at one end. There are only two likely situations that would require a crossover cable: to connect two RAVE devices directly, without a repeater or other device in between;... -
Page 33: Resources
Appendix: Resources QSC RAVE resources: http://www.qscaudio.com - Visit our website regularly for up-to-date RAVE information such as: Technology papers Configuration procedures Management aids Internet links to other networked audio information sources Client list (venues utilizing RAVE) Articles and reviews pdf versions of product documentation CobraNet resources: http://www.peakaudio.com - Peak Audio provides the official reference information for CobraNet. -
Page 34: How To Contact Qsc Audio Products And Warranty Information
Product Warranty QSC Audio Products, Inc. (“QSC”) guarantees its products to be free from defective material and / or workmanship for a period of three (3) years from date of sale, and will replace defective parts and repair malfunctioning products under this warranty when the defect occurs under normal installation and use - provided the unit is returned to our factory or one of our authorized service stations via pre- paid transportation with a copy of proof of purchase (i.e., sales receipt). - Page 36 QSC Audio Products, Inc., 1675 MacArthur Boulevard Costa Mesa, California 92626 USA PH: (714) 754-6175 FAX: (714) 754-6174 RAVE is a trademark of QSC Audio Products, Inc. “QSC” and the QSC logo are registered with the U.S. Patent and Trademark Office...
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