Yamaha ACU16-C Manual
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Summary of Contents for Yamaha ACU16-C
- Page 2 CobraCAD, CobraNet, and Peak Audio are trademarks of Cirrus Logic, Inc. Ethernet is a trademark of Xerox Corporation. Windows is a registered trademark of Microsoft Corpora- tion. Yamaha is a trademark of Yamaha Corporation. All other trademarks are the property of their respective holders and are hereby acknowledged.
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Page 3: Table Of Contents
ACU16-C Amp Control Unit ... . 15 ACU16-C Features ......16 NetworkAmp Manager . -
Page 4: Cobranet
CobraNet’s Serial Bridge feature allows serial data to be transmitted over the network. Nor- mally, the ACU16-C and NHB32-C use the Serial Bridge to transmit amp control data. How- ever, it can be used to transmit MIDI (Program/Control Change) or AD824 head-amp control data between any two NHB32-Cs on the network. -
Page 5: What Networks Are Supported
Each cycle starts with a beat packet, which is used for synchronization. The last packet in the cycle can be used to transmit asynchronous serial data. The ACU16-C and NHB32-C use this for power amp control, MIDI, and AD824 head-amp control. -
Page 6: Conductors & Performers
The network conductor The conductor device is chosen automatically and no user intervention is required. The ACU16-C and NHB32-C have front-panel indicators to show when they are working as the conductor. If the conductor fails, another device automatically takes over. -
Page 7: Multicast & Unicast Bundles
ACU16-C The ACU16-C and NHB32-C support all multicast bundle numbers and unicast bundle numbers 256 through 16, 383. NHB32-C ACU16-C ACU16-C Bundle numbers are assigned in NetworkAmp Manager. Set to receive bundle #256 Unicast bundles CobraNet, ACU16-C & NHB32-C Guide... -
Page 8: Network Infrastructure
128 channels per connection, as opposed to the 64 channels net- work-wide supported by repeater networks. Straight cables (wired pin-to-pin) should be used to connect the ACU16-C, NHB32-C, and other network devices to a switch. NHB32-C... -
Page 9: Built-In Redundancy
You can arrange devices onscreen, wire them up, and test. CobraCAD includes most CobraNet-compatible devices, including the ACU16-C and NHB32-C. CobraCAD runs on Windows computers and can be down- loaded for free at: http://www.peakaudio.com/CobraNet/cobracad/... - Page 10 #256 and #257 to distribute 16 audio channels from an NHB32-C to an ACU16-C, which is feeding eight 2-channel power amps. Since there are no hubs on the net- work, a crossed Ethernet cable is used to connect the ACU16-C and NHB32-C.
- Page 11 16 2-channel power amps. Straight Ethernet cables are used to connect the devices to the switch. Pink lines indicate bundle assignments Blue lines are straight Ethernet cables CobraCAD example #2 Here are the test results for example #2. The test results for example #2 CobraNet, ACU16-C & NHB32-C Guide...
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Page 12: Reliability & Cost Saving
• CobraNet supported by professional audio manufacturers world- wide • Serial Bridge feature allows power amp control, MIDI, and AD824 head-amp control via the network • ACU16-C and NHB32-C can be used with CobraNet-compatible audio equipment from other manufacturers CobraNet, ACU16-C & NHB32-C Guide... -
Page 13: Yamaha's Cobranet Products
’ NHB32-C Network Hub and Bridge The Yamaha NHB32-C Network Hub & Bridge is a bridging device for interfacing digital audio equipment with AES/EBU format I/O to a CobraNet network. It offers flexible patching of 32 AES/EBU inputs and 32 AES/EBU outputs. -
Page 14: Nhb32-C Features
NetworkAmp Manager • Patches can be recalled directly from the front panel when Net- workAmp Manager is offline • Works as an interface for Yamaha’s NetworkAmp Manager soft- ware • NetworkAmp Manager PC can be connected via USB or RS-232C •... -
Page 15: Acu16-C Amp Control Unit
The Yamaha ACU16-C Amp Control Unit is a CobraNet interface offering 24-bit D/A conver- sion of up to 16 CobraNet audio channels, which are output via Euro-block connectors. Up to 32 PC-N series power amplifiers can be connected and controlled via a single ACU16-C. UNIT ID setting... -
Page 16: Acu16-C Features
• NetworkAmp Manager PC can be connected via USB or RS-232C As of this writing, the Yamaha PC9500N and PC4800N power amplifiers can be networked with the ACU16-C. Please check the Yamaha Professional Audio Web site at the following URL for news and information on other Yamaha professional audio products: http://www.yamaha.co.jp/product/proaudio/homeenglish/... -
Page 17: Networkamp Manager
• Remote control software for PC-N series power amplifiers, ACU16-C, and NHB32-C • Runs on standard Windows PCs • PC can be connected to any ACU16-C or NHB32-C on the network • USB or RS-232C connection • Records log file of operations and warnings (e.g., output shorts, overheating) for troubleshooting analysis after a performance (see “Log File”... - Page 18 • Output level (12-segment meter, watt/volt) • Mute (on/off) • Output clip (output clipping indicator) • Impedance (indicates current load impedance, short/open) • Protection (protection system status) • Temperature (heatsink temperature, 12-segment meter, centigrade/Fahrenheit) NetworkAmp Manager’s power amp control page CobraNet, ACU16-C & NHB32-C Guide...
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Page 19: Bundle Assignments
#258 (8 "C" channels) Transmit bundle assignments A: #256 B: #257 Receive bundle assignments C: #258 ACU16-C #259 (8 "D" channels) D: #259 Assigning transmit and receiver bundle numbers NetworkAmp Manager’s NHB bundle assignment page CobraNet, ACU16-C & NHB32-C Guide... -
Page 20: Channel Patching
(NHB32-C/ACU16-C) bundle numbers and use the patchbays to select individual audio channels from any of those bundles. For example, you may configure an ACU16-C to receive four bundles and then select four audio channels from each bundle, or any combination up to a total of 16 channels. -
Page 21: Com & Midi Modes
OM & MIDI Modes CobraNet’s Serial Bridge feature allows serial data to be transmitted over the network. Normally, the ACU16-C and NHB32-C use the Serial Bridge for power amp control. However, it can be used to transmit MIDI (Program/Control Change) or AD824 head-amp control data between any two NHB32-Cs on the network. -
Page 22: Log File
The Warning Log window showing Warning events Online/Offline Status: This type of event occurs when a power amplifier, ACU16-C, or NHB32-C comes online (i.e., when a new device is detected on the network) or goes offline. Power Switch: This type of event occurs when a power amp is set to On or Standby. -
Page 23: System Examples
ACU16-C Power Amp System System Examples ACU16-C Power Amp System This example shows how Yamaha PC-N series power amplifiers can be connected to an ACU16-C for remote control and monitoring via NetworkAmp Manager. USB port ACU16-C USB port RS-485 port... -
Page 24: Acu16-C/Nhb32-C Cobranet
ACU16-C/NHB32-C CobraNet Audio Distribution System System Examples ACU16-C/NHB32-C Cobra- Net Audio Distribution System This example shows how multiple AES/EBU channels can be distributed over long distances (up to 200 meters with 100Base-TX Ethernet cabling) to multiple power amplifiers. The NHB32-Cs handle AES/EBU to CobraNet conversion, while the ACU16-Cs handle CobraNet to analog conversion. -
Page 25: Midi Over Cobranet
MIDI Program/Control Change messages from one NHB32-C to another via Cobra- Net’s Serial Bridge feature. In this example, MIDI data from a Yamaha DME32 Digital Mixing Engine is fed through to a Yamaha DM2000 Digital Production Console. While MIDI mode is active, power amp and AD824 head-amp control are not possible. -
Page 26: Ad824 Control Over Cobranet
Net’s Serial Bridge feature. In this example, head-amp control information is transmitted from a Yamaha DME32 Digital Mixing Engine, or Yamaha DM2000 Digital Production Con- sole to a remote AD824 A/D Converter. While COM mode is active, power amp and MIDI transmission are not possible. -
Page 27: Cobranet Primary & Secondary
If a primary cable or switch fails, the system automatically switches to the secondary network. NHB32-C NHB32-C Primary CobraNet Ethernet switch A Ethernet switch B Secondary CobraNet ACU16-C ACU16-C A system with redundant cabling and switches CobraNet, ACU16-C & NHB32-C Guide... -
Page 28: Further Information
Further Informa- A glossary of CobraNet, ACU16-C, NHB32-C, and NetworkAmp Manager related terms is provided on page 29. A wealth of information about CobraNet, with sections especially for designers and installers, is available on the Peak Audio Web site at http://www.peakaudio.com. -
Page 29: Glossary
CobraNet network designs. The latest version not synchronized by a common clock, in which data includes the ACU16-C and NHB32-C. is sent intermittently rather than in a steady stream. CobraNet: CobraNet’s Serial Bridge is asynchronous. Contrast Developed by Peak Audio, CobraNet with Isochronous. - Page 30 1,000 Mbps. CobraNet supports Gigabit Performer: Ethernet. A Gigabit switched network can handle up The devices on a CobraNet network to 1,028 CobraNet audio channels. that are wordclock slaves. Performers synchronize to the conductor. See also Conductor. CobraNet, ACU16-C & NHB32-C Guide...
- Page 31 If the wiring is identical, it’s a straight cable. If it’s dif- ferent, it’s a crossover cable. Contrast with Crossover Ethernet cable. STP (Shielded Twisted Pair): A cable consisting of two shielded conductors that are twisted together. CobraNet, ACU16-C & NHB32-C Guide...
- Page 32 © 2003 Yamaha Corporation...