Manuale d’uso / di manutenzione del prodotto CM16a del fabbricante QSC
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CM16a Amplifier Network Monitor HARDW ARE MANUAL TD-000086-00 TD-000086-00 Rev . A.
¨ WARNING ¨ While QSC has endeavored to develop and produce the most depend- able and robust ‘network’ audio product for your use, due to the myriad of network situations and equipment that may be encountered in its implementation, QSC cannot be held responsible for network conflicts and associated consequences that may result.
T ABLE OF CONTENTS: CM16a Amplifier Network Monitor Section 1: INTRODUCTION Overview ...................................................................................................5 Physical Characteristics & Layout............................
EXPLANATION OF GRAPHICAL SYMBOLS The lightning flash with arrowhead sym- bol, within an equilateral triangle, is in- tended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to humans.
Section 1: Introduction- Overview The QSC CM16a Amplifier Network Monitor provides powerful amplifier management and zone paging capability in a QSControl networked audio system using Ethernet networking technology to communicate with the host computer/system controller.
Section 1: Introduction- Physical Characteristics & Layout PHYSICAL CHARACTERISTICS Each CM16a is one rack space in height (1RU) and has an internal AC power supply. Its chassis depth is 37.7 cm (14.84 in.). The width of the chassis is 44.0 cm (17.
Section 1: Introduction- Physical Layout Diagram 7.
Section 1: Introduction- List of Functions & Features FUNCTIONAL LISTING, BLOCK DIAGRAM & DET AILED DESCRIPTIONS The CM16a performs control and monitoring of amplifiers remotely. Below is a listing of the functions that are available for the supported QSC amplifiers.
Section 1: Introduction- Block Diagram (part 1) The following diagrams illustrate the basic functional blocks of the CM16a. Keep in mind that the first diagram is “duplicated” for each of the eight ports.
Section 1: Introduction- Block Diagram (part 2) 10.
Section 1: Introduction- Detailed Description of Functions AUDIO FUNCTIONS Audio Inputs - These are the “Phoenix”-type 3 pin connec- tors used for balanced line level audio-signal input. Input Sensitivity- Sets the sensitivity of the Audio Inputs to either 1 Volt or 3 Volts (r.
Section 1: Introduction- Detailed Description of Functions AMPLIFIER MONITORING FUNCTIONS Amplifier Model Detect- Identifies what model of QSC amplifier is connected to the CM16a’s DataPort. Amplifier Gain Detect - Reports the setting of the amplifier’s gain setting (in dB) for each channel.
Section 1: Introduction- Detailed Description of Functions RS-232 PORT FUNCTIONS RS-232 Port- The RS-232 (serial) port is used to communicate with the CM16a for Ethernet address setup purposes and other diagnostic purposes.
Section 1: Introduction- Network Description 14 QSC CM16a Amplifier Network Monitors are designed to operate on standard 10 BASE -T Ethernet. Each CM16a operates as a respective node on its network; each unit contains a programmable IP address in nonvolatile memory and will therefore present n o conflict with any other node on the same network.
Section 1: Introduction- Sample Network T opologies The simplest network configuration is a single system controller computer and a CM16a con- nected by a single 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.
Section 1: Introduction- Sample Network T opologies 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. To create the more complex distributed star topologies needed for larger systems, use additional hubs.
Section 2: Installation- Basics and Mounting UNP ACKING There are no special unpacking precautions for the CM16a. However, it is recommended that you keep the original packing material for reuse in the rare event that service be required on the CM16a.
Section 2: Installation- Mounting and AC Power MOUNTING THE CM16a (continued): The illustration below shows the basic mounting technique. 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.
Section 2: Installation- Connections CONNECTING AUDIO INPUTS The audio inputs are located on the rear panel. The CM16a uses “Phoenix”-type (Euro-style) terminal block connectors for the audio inputs. These connectors allow the installer to pre-wire the input termina- tions before the CM16a is installed in the rack.
Section 2: Installation- Connections REAR PANEL- PAGE, RELAY & MONITOR CONNECTIONS CONNECTING THE MONITOR CHAIN IN/ OUT The MONITOR CHAIN connector is a five pin version of the “Phoenix”-type connector. The center pin is the shield connection for both the input and output of the monitor chain.
CONNECTION TO 10BASE-T (network connection) Connection to the Ethernet network is made using the RJ-45 type connector labeled 10BASE-T on the rear panel.
Section 2: Installation- Rear Panel Detail 22.
Section 2: Installation- Hookup Example 23.
Section 3: Operation- General AMPLIFIER SETUP- The amplifiers connected to the CM16a should have their power switches in the ON position and their gain controls set as required by the user (see Initial Testing note below).
Section 3: Operation- LED Behavior & Bypass Switch Usage BYP ASS SWITCH USE There are two distinctly different BYPASS modes. The first mode is the “Oops, I forgot the computer” or system troubleshooting type of BYPASS .
26 Section 3: Operation- Bypass Switch Usage (continued) The second mode ( “ safe ” mode)is used if the CM16a becomes inoperable (or behaves in completely unexpected ways) after uploading a new application file (TFTP file transfer).
The RS-232 connector on the rear panel is used as a serial port input/output (I/O). This I/O port is used for accessing controls for the IP address settings, system “health” data, firmware version information and other related data. Typically, this interface is not used by the majority of users.
28 Section 3: Operation- Serial Port I/O Interface 5) The Properties window for the selected COM port should now be active. It should be similar in appearance as the example to the right. For the Port Settings, use the following information so that commu- nication between the CM16a and the computer is in the same “language”.
29 Section 3: Operation- Serial Port I/O Interface 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.
30 Section 3: Operation- T elnet Access The features outlined for the RS-232 port can also be accessed via the Ethernet network connection. This feature can save a trip out to the remote CM16a with a laptop computer as long as the network and software are fully operable.
31 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.
32 Section 4: Specifications- Dimensions Below are shown the dimensions s of interest for the CM16a. These dimensions are helpful for locating the rear-supports for the CM16a when used in portable or touring installations.
33 Section 4: Specifications Frequency response 20 Hz–20 kHz ±0.5 dB 10 Hz–80 kHz ±3 dB Distortion <0.01% THD+N @ +4 dBu out (page input <0.03%) Dynamic range >110 dB unweighted 20 Hz–20 kHz (page input >100 dB) Polarity In-phase or inverted Level control range -95.
34 Power amplifier management Signal monitoring buses 1 (per CM16) Number of Channels 4 Internal signal tap points Pre-fader input signal 16 Post-fader input signal 16 Power amplifier output 16 Monito.
35 Physical network Ethernet, IEEE 802.3 compliant Raw data rate 10 megabits per second Frame format D.I.X. (Ethernet) Connector RJ-45 female Ethernet type 10 BASE -T Cable type CAT-3 (or better) twis.
36 SECTION 5: ARCHITECT ’ S AND ENGINEER ’ S SPECIFICA TIONS The Amplifier Network Monitor shall provide input, output, and status control for DataPort equipped QSC power ampli- fiers in an Ethernet-TCP/IP based network audio system. Sixteen independent channels shall be provided, grouped in pairs.
37 Section 6: Appendix- Ethernet Cable 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.
38 Section 6: Appendix- DataPort Pin-out & Connector P-N ’ s DA T A PORT PINOUT : The diagram to the right shows the pin assignments used for the HD-15 connectors on the CM16a and amplifier .
39 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.
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.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il QSC CM16a è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del QSC CM16a - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso QSC CM16a imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul QSC CM16a ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il QSC CM16a, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del QSC CM16a.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il QSC CM16a. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo QSC CM16a insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
