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. B

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Summary of Contents for QSC CM16a

  • Page 1 CM16a Amplifier Network Monitor HARDWARE MANUAL *TD-000086-00* TD-000086-00 Rev. B...
  • Page 2 While QSC strives to provide the highest quality technical solutions for networked audio products, in no event will QSC or its suppliers be held liable for any damages, consequential, incidental or otherwise, including any claims for lost profits and/or savings resulting from any attempted integration of QSControl products with your networking systems.

  • Page 3: Table Of Contents

    Telnet Access............30 Fuse Replacement..........31 Section 4: SPECIFICATIONS............................32 Section 5: ARCHITECT’S & ENGINEER’S SPECIFICATION ..................36 Section 6: APPENDIX Ethernet Cable & RS-232 Pinouts ............37 DataPort Pinout and “Phoenix”-type Connector Part Numbers..38 Section 7: QSC INFORMATION How to Contact QSC Audio Products..........39...
  • Page 4 Operation of this equipment The CM16a is suitable for connection to 100 - 240 VAC, 47 - 440 in a residential area is likely to cause hertz, with no special considerations other than the appropriate harmful interference, in which case the IEC power cord.

  • Page 5: Overview

    The functions and capabilities pro- This manual outlines the capabilities of the CM16a as well as vided in the design of the CM16a can only be realized with its installation and connections. The operation of the CM16a proper software implementation.

  • Page 6: Physical Characteristics & Layout

    PHYSICAL CHARACTERISTICS The CM16a is one rack space high (1RU) and has an internal, univeral 100-240V AC power supply. The chassis is 37.7 cm (14.84”) deep. The width of the chassis, less rack ears, is 43.7 cm (17.20”). For detailed mounting dimensions, refer to the Section 4: Specifications- Dimensions (page 32 ).
  • Page 7 MONITOR CHAIN, IN and OUT five-pin receptacle for audio monitoring functions RLY / TRG IN two-pin receptacle for remote sensing of switch closure or logic event RLY OUT three-pin receptacle for output terminals of CM16a’s internal SPDT relay contacts RCV, XMT and LINK STATUS network status indicators...

  • Page 8: List Of Functions & Features

    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 9: Block Diagram

    Section 1: Introduction- Block Diagram (part 1)
  • Page 10 Section 1: Introduction- Block Diagram (part 2)

  • Page 11: Detailed Description Of Functions

    Pre-Fader Monitor- Monitors the audio path at the point used for balanced line level audio-signal input. This type of before the Level Control block (i.e. the input to the CM16a). connector is sometimes called“Phoenix”or “Euro” style. Post-Fader Monitor- Monitors the audio path at the point Input Sensitivity- Sets the sensitivity of the Audio Inputs to after the Level Control, Mute , and Polarity blocks (i.e.
  • Page 12 Heat Sink Temperature Metering- Monitors the heatsink temperature of each channel of each amplifier PAGING FUNCTIONS connected to the CM16a. If the temperature exceeds a Input Sensitivity- Sets the sensitivity of the Page user specified value (in software) then the Over-Temp.
  • Page 13 ING! If addressing is configured incorrectly, the CM16a may not respond to network control. Note- The factory-programmed IP address is printed on a label affixed to the front panel of the CM16a. Record this IP address in a safe place in case the label becomes lost.

  • Page 14: Network Description

    5 due to its increased data rate capabilities. The extra capability may be needed for future system expansion where 100 BASE-T devices are used. 10BASE-T capability is all that is required for the CM16a and thus the call out for Category 3 as the minimum.

  • Page 15: Network Examples

    Ethernet crossover cable. A standard Ethernet cable would NOT work. The crossover-type cable must be used when con- necting the CM16a directly to the system con- troller computer. This type of cable switches (or crosses over) the transmit and receive sig- nals from one end to the other enabling con- nection without any intermediate devices.
  • Page 16 Section 1: Introduction- Sample Network Topologies Some networks have multiple system con- troller computers. This configuration is es- sentially the same as the second example with the addition of the second computer attached to the hub or switch. To create the more complex distributed star topologies needed for larger systems, use additional hubs or switches.

  • Page 17: Basics: Unpacking

    Note- Rack mounting is optional. The CM16a is secured to the front of the equipment rack with four screws and washers. Be sure to support the weight of the CM16a when securing to avoid distorting or bending the front panel mounting ears. For mobile, touring or portable applications, support the rear of the CM16a using the rear mounting tabs provided or contact QSC’s Technical Services Department to order rear rack ear extensions.

  • Page 18: Connecting Ac Power

    MOUNTING THE CM16a (continued): The illustration below, left, shows the basic mounting technique. Support the CM16a from underneath while positioning the mounting holes in the desired location in the rack. Secure with standard rack hardware. The CM16a uses fan-drawn air for cooling. The air intake is on the left side of the chassis and the exhaust vents are on the front panel. Be certain not to obstruct these openings! Allow ample “open space”...

  • Page 19: Audio Inputs

    If unbalanced audio sources are used , it is preferable to use an appropriate audio transformer (or other unbalanced-to-balanced “converter”) to provide a balanced input to the CM16a. If this is not possible, then it is recommended the negative terminal and shield terminal be connected to one another with a jumper UNBALANCED INPUT CONNECTION wire.

  • Page 20: Page Input

    DO NOT CONNECT VOLTAGES EXCEEDING 70 VOLTS (DC or AC rms) TO THE RLY OUT CONNECTOR! If there is a need to switch DAMAGE TO THE CM16a COULD RESULT OR CREATE HAZARDOUS OPERATING CONDITIONS! higher voltage or current levels with the CM16a, contact Technical Services for suggested solutions.

  • Page 21: Base -T Input/Output

    CONNECTING TO THE RS-232 PORT Connection is made with a null-modem serial cable with a DB-9 male plug to the CM16a. The RS-232 port can be used for setting various operational parameters that are CRITICAL to proper operation of the CM16a. The network address settings can be changed through this port.

  • Page 22: Rear Panel Detailed Illustration & Hookup Example

    Section 2: Installation- Rear Panel Detail...

  • Page 23: General: Led Behavior

    LINK STATUS- When lit, this LED indicates that the CM16a is connected to an operating Ethernet network. If not lit, there is most likely a cabling problem between the CM16a and the hub or possibly a fault in the hub.

  • Page 24: Amp Setup, Network Setup

    The new setup is NOT the same as Preset 12, so the CM16a starts a 4 minute timer from the CM16a OPERATION- To turn the CM16a on, press on time the control was changed. After the 4 minutes has the upper portion of the power switch.

  • Page 25: Presets

    QSControl software or RS232/Telnet sessions. The purpose of this portion of the manual is to outline the current implementation of this feature. Be aware that the software and firmware of the CM16a are subject to continuous improvement and therefore this text can not be guaranteed accurate. Refer to the Qscontrol software help file for the most up-to-date information.

  • Page 26: Bypass Switch Usage

    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 27: Serial Port Interface

    QSC technical representative prompting you to Connect the RS-232 port of the CM16a to an unused serial access particular menu items so the data can be interpreted. port (COM port) of a PC using a null modem type cable. These cables are different than the ordinary serial cable.
  • Page 28 It will require that you name your connection.Enter a name for your new connection (example: CM16a ) and click OK to continue. Next, Hyper Terminal needs to know how to “talk” to the CM16a. This selection depends on which port on your PC the null-modem cable is connected.
  • Page 29 The next screen will look similar to the Hyper Terminal window above. After typing “h” and “Enter”, a text menu will appear. The menu should appear very similar to the example above. This is sent by the CM16a and will detail your options and instructions for changing the address information.

  • Page 30: Telnet Access

    This is the basic procedure for opening a Telnet session: 1- To open the Telnet sesion- Click START, select RUN, type Telnet followed by a space, then the IP address of the CM16a you want to communicate with in the text box and click OK. Win2000 will not use a console window (with menu) but rather a DOS window.

  • Page 31: Fuse Replacement

    FUSE REPLACEMENT If the CM16a does not power-up when the POWER switch is in the “on” position (POWER indicator LED does not illuminate) check the source of AC power and the connection of the power cord at the outlet and IEC receptacle ends. If the AC source is “on” and the power cord is connected and in good condition, then the condition of the fuses should be checked.
  • Page 32 Section 4: Specifications- Dimensions SIDE FRONT...
  • Page 33 Section 4: Specifications Input Signal Processing Common-mode rejection Typical, >50 dB, 20 Hz–20 kHz Worst Case, >40 dB at 20 kHz Frequency response 20 Hz–20 kHz ±0.5 dB 10 Hz–80 kHz ±3 dB Distortion <0.01% THD+N @ +4 dBu out Crosstalk (inter- >75 dB separation, 20 Hz–20 kHz (page input <0.03%)
  • Page 34 Section 4: Specifications Power amplifier management Power amplifier interface Protect indicator Senses amplifier protect status Compatibility QSC Data Port equipped amplifiers Temperature meter Reports amplifier operating Connector and cable temperature HD-15 VGA cable, 2 meters length Over-Temp. Alert Software adjustable threshold...

  • Page 35: Section 4: Specifications

    Revision Max cable length 100 m to hub Network fail-safe If network connection to the Grounding Floating CM16a is lost, operation will Factory IP Address Supplied on front-panel sticker continue uninterupted as shipped from factory RS232 Port Cable Type Null-Modem (such as “Laplink”)

  • Page 36: Section 5: Architect's & Engineer's Specification

    SECTION 5 : ARCHITECT’S AND ENGINEER’S SPECIFICATIONS The Amplifier Network Monitor shall provide input, output, and status control for DataPort equipped QSC power amplifiers in an Ethernet-TCP/IP based network audio system. Sixteen indepen- dent channels shall be provided, grouped in pairs.

  • Page 37: Ethernet Cable & Rs-232 Pinouts

    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 a single system controller computer directly to a single CM16a device; and to cascade hubs that don’t have uplink ports.

  • Page 38: Dataport Pinout And "Phoenix"-Type Connector Part Numbers

    HD-15 connectors on the CM16a and amplifier. NOTE! This information is shown for reference only and is subject to change without notice as the DataPort feature is specific to QSC products and not intended for interface to other manufacturer’s equipment.

  • Page 39: How To Contact Qsc Audio Products

    Section 7: How to Contact QSC Audio Products ADDRESS: QSC Audio Products, Inc. 1675 MacArthur Boulevard Costa Mesa, CA 92626-1468 USA TELEPHONE NUMBERS: Main Number (714) 754-6175 Sales Direct Line (714) 957-7100 Sales & Marketing (800) 854-4079 toll free in U.S.A. only...
  • Page 40 1675 MacArthur Boulevard Costa Mesa, California 92626 USA PH: (714) 754-6175 FAX: (714) 754-6174 “QSC” and the QSC logo are registered with the U.S. Patent and Trademark Office...

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