QSC CM16a Hardware Manual
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QSC CM16a Hardware Manual

QSC CM16a Hardware Manual

Amplifier network monitor
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CM16a
Amplifier Network Monitor
HARDWARE MANUAL
*TD-000086-00*
TD-000086-00 Rev.D
1675 MacArthur Blvd., Costa Mesa, CA, 92626 USA
Main Number (714) 754-6175 Sales & Marketing (714) 957-7100 or toll free (USA only) (800) 854-4079
Customer Service(714) 957-7150 or toll free (USA only) (800) 772-2834

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  • Page 1 1675 MacArthur Blvd., Costa Mesa, CA, 92626 USA Main Number (714) 754-6175 Sales & Marketing (714) 957-7100 or toll free (USA only) (800) 854-4079 Customer Service(714) 957-7150 or toll free (USA only) (800) 772-2834 CM16a Amplifier Network Monitor HARDWARE MANUAL *TD-000086-00* TD-000086-00 Rev.D...

  • Page 2: Fcc Interference Statement

    © Copyright 2004, 2007 QSC Audio Products, LLC QSC® is a registered trademark of QSC Audio Products, LLC “QSC” and the QSC logo are regis- tered with the U.S. Patent and Trademark Office. All trademarks are the property of their respective owners.

  • Page 3: Introduction Overview

    (or some combination of these) at the time this document was printed. The amplifiers supported by the CM16a are the PowerLight, PL2, PL2A, DCA, and CX series of QSC amplifiers that have a built-in DataPort. Models that do not have a built-in DataPort or models that have a DP-1 option or “V2”...

  • Page 4: Physical Characteristics

    The CM16a performs remote control and monitoring of amplifiers. Below is a listing of the functions available for the supported QSC amplifiers. The following two pages (Block Diagram part 1 & 2) illustrate the main functions of the CM16a. Following the diagram is a section giving detailed explanations on each functional block that will aid in the use of the CM16a.

  • Page 5: Monitor Functions

    •Amplifier: Power StatusAmplifier Gain •Amplifier ModelBridge Mode •Load Monitor (impedance)Protection Status •Output VoltageOutput Current •Output Power (real)Heat Sink Temperature (with Over-Temp.) •HeadroomClipping Detect SPECIAL FEATURES •DAC (digital-to-analog converter) that can be used for generating test signals •RS-232 Port for setting of network address information and system diagnostics •TFTP upgradeable firmware via Ethernet BLOCK DIAGRAM, PART 1 •Output ShortOutput Open...

  • Page 6: Audio Functions

    (or odd numbered) input. The second (or even numbered) input is ignored; this includes the PAGE signal. This feature is useful for sending one input signal to both ampli- fier channels without having to wire jumpers between the two input connectors. This mode is automatically enabled by the CM16a when the amplifier bridge mode is set to any of the parallel modes available (see amplifier manual for details).
  • Page 7 Pre-Fader Monitor- Monitors the audio path at the point before the Level Control block (i.e. the input to the CM16a). Post-Fader Monitor- Monitors the audio path at the point after the Level Control, Mute, and Polarity blocks (i.e. the output from the CM16a).

  • Page 8: Paging Functions

    IP address in non volatile memory. To minimize network conflicts, each IP address should be unique. When shipped from the factory, the CM16a’s factory-programmed IP address is printed on a label affixed to the front panel of the unit. Record the unit’s IP address and serial number and keep in a safe place.
  • Page 9 The active hub or switch would allow for future expansion. If there are two or more CM16a’s in the network (or other network devices present) use a hub or switch to create a star topology.

  • Page 10: What Is Included In The Carton

    UNPACKING There are no special unpacking precautions for the CM16a. Keep the original packing material for reuse in the rare event that service be required on the CM16a. If service is required and the original packing material is not available, adequately protect for shipment (strong box of appropriate size, sufficient packing material to prevent impact damage or load shifting).

  • Page 11: Connecting Audio Inputs

    CONNECTING AUDIO INPUTS The audio inputs are located on the rear panel. The CM16a uses terminal block connectors for the audio inputs. They are sometimes called “Phoe- nix” or “Euro”connectors. These connectors allow the installer to pre- wire the input terminations before the CM16a is installed in the rack. It also allows for re-routing of audio inputs by simply interchanging connec- tor locations without the need for any tools.
  • Page 12 CM16a’s; the system will not function properly). Insure that both amplifier DataPorts are used and that they are connected to the same CM16a. You do not have to use adjacent ports on the CM16a (i.e. PORT C and PORT D). You can use any two ports for convenience; the only impact of doing this is that the System...

  • Page 14: Led Indicators

    QSControl software; refer to the software’s helpfile for detailed information. When first taken out the box, the CM16a will power up in a muted state with all faders at -95.5 dB., polarity set to normal, sensitivity set to 3V, and any ampli- fiers connected to the CM16a will be in STANDBY mode.
  • Page 15 If the CM16a operates in an unexpected way or is not responding to any communications after a new application file is uploaded to it, it is likely the file was corrupted during transfer. If this occurs, there is a “backup” program in the CM16a that will enable you to communicate with it.
  • Page 16 QSC technical representative prompting you to access particular menu items so the data can be interpreted. Connection is made using a null-modem type serial cable between your computer’s serial port and the RS-232 port of the CM16a. Once properly connected, a “dumb-ter- minal”...

  • Page 17: Telnet Access

    6) The Hyper Terminal main window will appear next, but blank. Type the letter “h” (for help) and then the “Enter” key. This will prompt the CM16a to post its menu text. The “h” key is the Help prompt for the CM16a.

  • Page 18: Specifications

    DIMENSIONS SPECIFICATIONS PHYSICAL Height Width Depth Weight Mounting Operating temperature AC POWER Voltage Current Frequency Disconnect Fuses 1.72” (1 RU) 19” (standard rack mount) 14.84” (37.7 cm), including rear supports 11 lbs (5 kg) Rear support recommended for portable or mobile use 0 to 40°...
  • Page 19 +21 dBu 75 Ohms balanced 600 Ohms minimum QSC DataPort equipped amplifiers QSC DataPort cable, 2 meters length (for longer runs, contact QSC’s Technical Services Dept.) 16 amp channels grouped in pairs Clip indicator Senses channel clipping Bridge mode status...
  • Page 20 Supplied on front-panel sticker as shipped from factory TCP/IP QSC24 If network connection to the CM16a is lost, operation will continue uninterrupted Null-Modem (such as “Laplink”) Bits per Second 9600, Data Bits 8, Parity none, Stop Bits 1, Flow Control Xon/Xoff...
  • Page 21 The following manufacturers and part numbers are provided as a reference to users. The information here is subject to change without the knowledge of QSC. 2 pin: Phoenix Contact - 17 57 01 9; Riacon - 31249102-6; On-Shore Tech - EDZ950/2 3 pin: Phoenix Contact - 17 57 02 2;...
  • Page 22 This page intentionally blank.
  • Page 24 QSC Audio Products, LLC 1675 MacArthur Boulevard Costa Mesa, California 92626 USA ©2006 “QSC” and the QSC logo are registered with the U.S. Patent and Trademark Office. (714) 754-6175 (714) 957-7100 or toll free (USA only) (800) 854-4079...

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