QSC Audio CM16a Home Theater System User Manual
Contents
1. 22 Section 3 OPERATION General LED Behavior 23 Amp Setup Network Setup 24 Pr s ts ia tetes 25 BYPASS Switch Usage 26 Serial Port Interface 27 Telnet Access Fuse Replacement Section 4 SPECIFIGATIONS 2 nose a ere eet 32 Section 5 ARCHITECT S amp ENGINEER S SPECIFICATION 36 Section 6 APPENDIX Ethernet Cable amp RS 232 Pinouts ssssmssmmmn 37 DataPort Pinout and Phoenix type Connector Part Numbers 38 Section 7 OSC INFORMATION How to Contact OSC Audio Products 39 Important Safety Information Please review the following important safety information before operating the CM16a Explanation of Graphical Symbols The lightning flash with arrowhead symbol within an equilateral triangle is intended 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 The exclamation point within an equilateral triangle is intended to alert the users to the presence of important operating and maintenance servicing instructions in the literature accompanying the product SAFEGUARDS Electrical energy can perform many useful functions This unithas been engineered and manufactured to assure your personal safety Improper use can result in potential electrical shock or fire hazards In orde2. PORTA CH1 Parallel Mode Paging Insert Input Input Source Level Control ae Ch 2 Sensitivity i Ye dB Steps olarity 1V 3V Normal Page 95 5 to 0 dB Pre fader Monitor Post fader Monitor Threshold Load ifi Heat Sink Adi 9 Monitor Power i Temperature just Detect Detect Meter Protect Output Output Threshold Status Current Voltage Adjust Detect Meter Meter Amplifier Voltage Monitor To Monitor Load Real Amplifier Heat Sink hero Monitor Power Gain Adjust Detect Detect Detect Protect Output Threshold Status Current Voltage Detect Meter Meter Level Adjust Power Standby Status Operate Detect Control Amplifier Voltage Monitor Amplifier Model Detect BPLELELO CLLCII CILIITIIII III III III III CELCELELELELELEELELEL III rr rere rererrrre III LITI CECLELELELEEEEEELELELELELCEELCELELCELELEECEE LL a te Ch 1 Audio to Amplifier Ch 2 Audio to Amplifier POWER AMPLIFIER DataPort INTERFAC ch amplifier Monitor Ch 2 Amplifier Monitor Amplifier Control Amplifier Monitor ms E DIFITITITTTITTITIT III III III II III III III III III III III III III III ere errr rer rer EEE EEE EEE errr terre EEE EEE EEE EEE Section 1 Introduction Block Diagram part 2 CHI MONITOR MODULE gt Pre fader From Channel Dy Post fader Sa Tap Points Amplifier Off Inpu
3. AMP Section 2 Installation Basics and Mounting 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 WHAT IS INCLUDED IN THE CARTON 1 CM16a Amplifier Network Monitor 2 AC Power Cord 3 One complete set of the Phoenix type connectors 18 pcs of 3 pin style 1 pc of 5 pin style amp 1 pc of 2 pin style 4 Hardware manual this document LOCATION CONSIDERATIONS Where the CM16a is installed is dependent upon the location of audio input sources amplifiers and network access The system controller computer should be located someplace convenient for the system operator In most instances the system controller computer is remote from the CM16a and the amplifiers It is preferable to install the CM16a and the amplifiers in the same or adjacent equipment racks this allows the cabling between them to be standard 15 pin VGA monitor cables These cables are generally 2 meters long 6 5 feet For longer cabling runs contact OSC s Technical Services Department at 800 772 2834 toll free U S A only or 714 957 7150 QSC offers a special cable with individually shielded twisted pairs for ea
4. Balanced connection is recommended for all inputs The illustrations to the right show the proper connection of audio program input sources for both balanced and unbalanced inputs Use balanced connections when ever possible f unbalanced audio sources are used it is preferable to use an At appropriate audio transformer or other unbalanced to balanced converter to provide abalanced input to the CM16a If this is not possible then itis recommended the negative terminal and shield terminal be connected to one another with a jumper wire Terminal Block Connector Hints Strip length 6 to 8 mm 1 4 to 5 16 inch Be careful not to nick or cut the conductor strands After each conductor has been stripped insert it fully intothe connector and tighten the retaining screw When stranded wire is used carefully twist the conductor strands together so when they are inserted into the connector assembly no loose strands short adjacent terminals STRAIN RELIEF ff Wire tie for NW strain relief Loosen screw insert wire here then tighten screw Jumper wire gt between and shield connections For heavy duty input cables the use of connectors with integral strain relief is recommended These connectors have a large plastic tab molded as part of the assembly which provides an area to tape or tie wrap the cable to At the time of this writing only the 3 pin with the strai
5. If fuse replacement does not enable the CM16a to power up double check the AC power source and the cord assembly before returning the unit for possible repair 31 Section 4 Specifications Dimensions 14 84 in i 376 9 mm p 14 44 in 366 8 mm an gt zal SIDE a 18 98 in 482 1 mm i CI 1 72in FRONT 43 7 mm 17 20 in 436 9 mm TOP 0 11 in 2 7 mm 32 Section 4 Specifications Input Signal Processing Frequency response Distortion Dynamic range Polarity Level control range Precision attenuator transients zipper noise Mute Inputs Program inputs Paging inputs Monitor bus input Connector type Type Grounding Nominal level Maximum level Impedance 20 Hz 20 kHz 0 5 dB 10 Hz 80 kHz 3 dB lt 0 01 THD N 4 dBu out page input lt 0 03 gt 110 dB unweighted 20 Hz 20 kHz page input gt 100 dB In phase or inverted 95 5 to 0 dB in 0 5 dB steps better than 112 dB below maximum output gt 90 dB attenuation 16 1 1 Terminal block connectors also called Euro or Phoenix style detachable Electronically balanced All shield terminals connected to chassis 1V 3V rms selectable 21 dBu 10 kOhm balanced C
6. 13 Section 1 Introduction Network Description 14 QSC CM16a Amplifier Network Monitors are designed to operate on standard 10BASE T Ethernet Each CM16a operates as a respective node on its network each unit contains a programmable IP address in nonvolatile 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 Ethernet devices such as hubs repeaters switches and routers will usually afford the flexibility to configure the network as needed The system controller computer on the network must have an Ethernet compatible network interface card NIC installed Additionally if operation during power outage or interruption is required an uninterruptable power supply UPS will be required for the host computer CM16a and any hubs switches or repeaters If the CM16a is disconnected from the network for any reason it will continue to process audio using the last settings assuming AC power is uninterrupted The CM16a connects to the network via its RJ 45 connector on the rear panel This allows direct connection to a 10BASE T network Use Category 3 or better unshielded twisted pair UTP Ethernet Cable Most ready made Ethernet patch cables available today are rated at least Category 5 making them suitable for this
7. 7 If network connection to the CM16a is lost operation will continue uninterupted RS232 Port Cable Type Port Settings General Physical Height Width Depth Weight Mounting Operating temperature Null Modem such as Laplink Bits per Second 9600 Data Bits 8 Parity none Stop Bits 1 Flow Control Xon Xoff 1 72 1 RU 19 standard rack mount 14 84 37 7 cm including rear supports 11 Ibs 5 kg Rear support recommended for portable or mobile use 0 to 40 Celsius AC Power Voltage Current Frequency Disconnect Fuses 100 240 VAC 1 1 ARMS 100V 1 ARMS 120V 0 5 A RMS 230V 47 440 Hz Detachable power cord with IEC connector 2 Ampere 250 Volt Rating 5mm diameter 20 mm length 35 SECTION 5 ARCHITECT S AND ENGINEER S SPECIFICATIONS The Amplifier Network Monitor shall provide input output and status control for DataPort equipped OSC power amplifiers in an Ethernet TCP IP based network audio system Sixteen indepen dent channels shall be provided grouped in pairs Amplifier Input Control and Monitoring For each of the sixteen power amplifier input signals the CM16a shall provide level mute and polarity control pre and post fade signal level metering and audio monitoring and select able 1Vrms or 3Vrms input sensitivity Page Input The Amplifier Network Monitor shall provide a page input separate from the normal program inputs whose s
8. the time this document was printed The amplifiers supported by the CM16a are the PowerLight PL2 PL2A DCA and CX series of OSC amplifiers that have a built in Data Port Models that do not have a built in DataPort or models that have a DP 1 option or V2 DataPort such as the EX MXa amp ISA series are NOT supported by the CM16a The DataPort connections are made with ordinary VGA computer monitor type cables HD 15 male to male These cables are the same type that are used on personal computer systems to connect the monitor to the computer This allows you to use commonly available cabling for interconnecting amplifiers to the CM16a Each DataPort connection supports the control and monitoring functions for two audio channels When using the CM16a with amplifiers that have more than two channels such as the 4 channel cinema amplifiers additional DataPort connections are required The CM16a is a control and monitoring device that relies on software to do its job The functions and capabilities pro vided in the design of the CM16a can only be realized with proper software implementation Keep in mind that this manual s intent is to outline these capabilities and provide a reference for properly installing and interconnecting the CM16a to the networked system s host computer the audio inputs and the amplifiers to be controlled and monitored A thorough knowledge of the control software s features and operation will provide the
9. 16 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 Some have spe cial uplink ports for connecting to other hubs or switches via a standard Ethernet cable If the hubs or switches do not have uplink ports then the hub to hub or switch to switch connection should use a crossover type Ethernet cable Primary System Controller Computer LI m AMP ff Ordinary VGA cables H he between CM16a and H E AMP feee amplifier DataPorts n te n AMP x H Secondary System AMP LI Controller Computer Hub or Switch a mn mn RJ 45 to RJ 45 Ethernet Cable AMP Category 3 or better N lt 100 m 328 ft AMP AM P hannene Ordinary VGA cables AMP N ag a between CM16a and ne i amplifier DataPorts si System Controller Computer Upto8 Amplifiers iva TT I r Be RJ 45 to RJ 45 Ethernet Cable AMP El Category 3 or hetter H lt 100 m 328 ft AMP f I I I Upto8 I Amplifiers Am Upto8 Amplifiers AMP AMP Upto8 Amplifiers AMP AMP Upto8 Amplifiers
10. application One side note regarding Ethernet cabling Although Category 3 data cable is called out as the minimum requirement it is increasingly difficult to find Higher grades of cable are becoming the normal stock with the proliferation of 100BASE T Ethernet Category 5 Ethernet cable is the most widely available type of data cabling as of this writing So what does this mean Use Category 3 if it is available and cost effective If the cost of Category 5 cable is not prohibitive it may be desirable to do your cabling runs with Category 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 Section 1 Introduction Sample Network Topologies The simplest network configuration is a single system controller computer and a CM16a con nected by a single Ethernet crossovercable 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 See page 37 for crossover cable pinouts For CAT 3 or CAT 5 distances longer than 100 meters 300 feet a repeater must be used An active hub or Ether
11. for the selected COMport 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 communica tion between the CM16a and the computer is in the same language Bits per Second 9600 Data Bits 8 Parity none Stop Bits 1 Flow Control Xon Xoff Once you have set the properties as outlined click OKto continue If all the connections and communications settings are correct the main Hyper Terminal window will appear next see next page 28 Connection Description HE a New Connection Enter a name and choose an icon for the connection Name CM164 Icon ce Phone Number 2fx B CM16a Enter details for the phone number that pou want to dial Country code Area code Phone number Connect using piecttocomi ce COM1 Properties HEI Port Settings Bits per second g n 3 Data bits 8 v Parity None gt Stop bits 1 v Flow control Xon Xoff Restore Defaults OK Cancel Section 3 Operation Serial Port 1 0 Interface 4b CM16a HyperTerminal Of x File Edit View Call Transfer Help Die 8 3 cla si CM16a Diagnostics and Setup Options Menus Display Test MQX memory Show Highest Memory used Show stack usage Display Network settings Enter Network setup MQX component tests Enter network statistics menu System auto rest
12. from 95 5dB to OdB in 0 5 dB steps Meter These points are indicators of where in the audio path the software can meter the audio Mute Actively mutes the audio signal being passed by a channel No signal is delivered to the amplifier when a channel is muted Parallel Mode When parallel mode is selected the input to the first channel is also applied to the second channel When in parallel mode the input is ALWAYS from the first 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 amplifier 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 Polarity Determines the polarity of the signal delivered to the amplifier for each channel AUDIO MONITOR CHAIN FUNCTIONS 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 Amplifier Monitor Monitors the audio at the output of the amplifier i e the speaker terminals of the amplifier Off This selection disconnects the monitor for the channel Level Adjust Provides adjustme
13. installed and used in accordance with the instructions may cause harmful interference to radio com munications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the inter ference at his or her own expense Section 1 Introduction Overview The OSC CM16a Amplifier Network Monitor provides power ful amplifier management and zone paging capability in a OSControl networked audio system using Ethernet network ing technology to communicate with the host computer system controller The host computer uses the OSControl application software to operate the networked audio system including the CM16a s and their amplifiers The software operates on the Microsoft Windows NT version 4 0 operating system and can be customized using Microsoft Visual Basic Professional Edi tion This manual outlines the capabilities of the CM16a as well as its installation and connections The operation of the CM16a is accomplished using OSC s OSControl software Note that not all hardware features may be supported by the current software revision Please refer to the software s documenta tion amp help file for information regarding software features usage and functions Each CM16a performs control and monitoring functions for up to 16 amplifier channels This could be up to eight 2 channel or four 4 channel amplifiers or some combination of these at
14. network computer issues HOW TO put the CM16a into BYPASS MODE 1 1 Turn the CM16a on and wait 5 to 10 seconds for the start up LED sequence to finish 2 Depress the BYPASS switch use a paperclip or similar item and keep it depressed for at least 5 seconds 3 The two steps above must be completed within 60 seconds from power up If you miss the timing just power down and power up again and repeat steps 1 amp 2 BYPASS MODE 2 SAFE MODE Use ifthe CM16a becomes inoperable or behaves in completely unexpected ways after uploading a new application file TFTP file transfer If the CM16a operates in an unexpected way or is not responding to any communications after a new application file is uploaded to it itis 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 HOW TO put the CM16a into BYPASS MODE 2 1 Turn off the power to the CM16a using the front panel power switch 2 Depress the BYPASS switch use a paperclip or similar item and keep it depressed while turning the power on again 3 The CM16a is now in safe mode You may release the BYPASS switch You will now be able to re establish Ethernet communications with the CM16a Once communication has been re established the file transfer can be tried again or the old application file used until the source of the data transfer problem can be found In safe mode all c
15. one nor mally open contact terminal These are labeled as C NCand NO on the rear panel When the relay is not energized the Cterminal is connected to the NC terminal and the NO terminal is not connected when the relay is energized the Cto NC connection is opened and the C to NO connection is closed REAR PANEL PAGE RELAY amp MONITOR CONNECTIONS RLY TRG IN 10 BASE T PAGE W N OUT O 0 o g o rs 7 gt gt ALE PAGE RLY TRIG IN RLY OUT h NC NOC MONITOR CHAIN rh OUT it SR io e GE Si md RCV XMT LINK STATUS MONITOR CHAIN IN amp OUT CONNECTING THE MONITOR CHAIN IN OUT The MONITOR CHAIN connector is a 5 pin terminal block con nector The center pin is the shield connection for both the input and output of the monitor chain Note also that the positive terminal of the input and output connections are on the outer pins of this connector ATTENTION DO NOT CONNECT VOLTAGES EXCEEDING 70 VOLTS DC or AC rms TO THE RLY OUT CONNECTOR DAMAGE TO THE CM16a COULD RESULT OR CREATE HAZARDOUS OPERATING CONDITIONS f there is a need to switch higher voltage or current levels with the CM16a contact Technical Services for suggested solutions 20 Section 2 Installation Connections CONNECTION TO 10BASE T network connection Connection to the Ethernet network is made using the RJ 45 type connector l
16. the settings in preset 15 will be recalled When the contacts attached to the RLY TRG IN are again closed the settings will revert to their previous values positions This could be used for a paging application where the program inputs are temporarily muted and the page input routed to the outputs after the page the sytem reverts back to it s previous opearting setup MODE 2 Recal Preset 15when the contacts connected to the RLY TRG IN are closed Restore previous settings when contacts connected to RLY TRG IN are opened Preset 14 is used as a scratchpad and is OVERWRITTEN Whatever was in Preset 14 is GONE forever This mode is identical to MODE 1 above with the exception that the closed and open contact operation is swapped Once inthis mode the first time there is a transition from contacts opened to contacts closed the currently running settings will be saved and the settings in Preset 15 will be recalled When the contacts attached to the RLY TRG IN are again opened the settings will revert to their previous values positions MODE 3 Recall Preset 14 when the contacts connected to the RLY TRG IN are closed Restore Preset 15 when the contacts connected to RLY TRG IN are opened In this mode Preset 14 WILL NOT be overwritten Once in this mode the first time there is a transition from contacts open to contacts closed Preset 14 will be recalled OR the first time there is a transition from contacts closed to contacts open Pr
17. 0 3 5 pin Phoenix Contact 17 57 04 8 Riacon 31249105 6 On Shore Tech EDZ950 5 Strain Relief 3 pin Phoenix Contact 17 76 16 8 Strain Relief 5 pin Phoenix Contact 17 76 142 WEBSITE reference Phoenix phoenixcon com Riacon riaelectronic com On Shore on shore com 38 Section 7 How to Contact 0SC Audio Products ADDRESS OSC 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 amp Marketing 800 854 4079 toll free in U S A only Technical Services 714 957 7150 800 772 2834 toll free in U S A only FACSIMILE FAX NUMBERS Sales amp Marketing FAX 714 754 6174 Technical Services FAX 714 754 6173 WORLD WIDE WEB http www qscaudio com 39 TM 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
18. DTR RI Q No Connection No Connection 9 RI 37 Section 6 Appendix DataPort Pin out amp Connector P N s DATA PORT PINOUT The diagram to the right shows the pin assignments 111213 1415 used for the 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 OSC products and not intended for interface to other manufacturer s equipment Pin Signal Description Ch 1 Minus Input Signal AG Standby Control V MON Ch 1 and Subcode 1 I MON Ch 1 and Subcode 2 Clip protect Ch 1 Hard Ground Ch 1 Plus Input Signal Ch 2 Plus Input Signal a ao N o o A W N unused for CM16a 15V on certain amps 10 Data Reference Ground 11 Ch 2 Minus Input Signal Amp IDR model ID V MON Ch 2 and Subcode 1 l MON Ch 2 and Subcode 2 Clip protect Ch 2 Ae la on A WwW N RS 232 PINOUT The diagram right shows the pin assignments for RS 232 Signal Description DTR Signal GND DSR RTS CTS not used 12345 RE TERMINAL BLOCK CONNECTOR PART NUMBER REFERENCE The following manufacturers and part numbers are provided as a reference to users The information here is subject to change without the knowledge of OSC 2 pin Phoenix Contact 17 57 01 9 Riacon 31249102 6 On Shore Tech EDZ950 2 3 pin Phoenix Contact 17 57 02 2 Riacon 31249103 6 On Shore Tech EDZ95
19. HyperTerminal program This program is usually started by clicking the Windows START icon highlighting PRO GRAMS then ACCESSORIES and finally highlighting the Hyper Terminal folder and clicking on its icon The screen shot below shows a typical icon view of the Hyper Terminal folder icons shown for each program in the folder If your system was setup for a list view then you will instead see alist of what s in the folder Identify the Hyper Terminal program icon or name from the list and click or double click as required to start the program In the screen shot below the Hyper Termi nal icon is the fifth from the left in the row of icons HyperTerminal Icon HCI Mail ht 27 Section 3 Operation Serial Port 1 0 Interface 3 After starting Hyper Terminal a Connection Description window will pop up It will require that you name your connection Enter a name for your new connection example CM76a and click OK to continue 4 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 Ignore the first three entry fields phone number information and go directly to the Connect using entry field and click on the down arrow for the drop down menu selection Select the appropriate port COM1 is used in this example and click OK to continue The Properties window should appear next 5 The Propertieswindow
20. Products Inc Costa Mesa CA QSC and the QSC logo are registered with the U S Patent and Trademark Office HyperTerminal is the copyrighted property of Hilgraeve Inc Monroe MI Phoenix Contact is the trademark of Phoenix Contact Inc Middletown PA Riacon is the trademark of RIA electronic Inc Eatontown NJ On Shore Technology is the trademark of On Shore Technology Inc Tempe AZ All other trandemarks are the property of their respective owners TABLE OF CONTENTS CM16a Amplifier Network Monitor Section 1 INTRODUCTION ETE lilla 5 Physical Characteristics amp LayOUt ieri 6 List of Functions amp Features 8 Block Diagram acieo e 9 Detailed Description of Functions 11 Network Description 14 Network Examples 15 Section 2 INSTALLATION Basics Unpacking 17 What is Included 17 Location Considerations 17 Mounting the CM16a 17 Connecting AG Power s ita alee 18 Audio Inputs 19 Page Input RLY TRG Input 20 RLY Output 20 Monitor Chain In OUt 20 10BASE T Input Output 21 RS 232 Port 21 Amplifiets iii 21 Rear Panel Detailed Illustration amp Hookup Example
21. QSC CM16a Amplifier Network Monitor HARDWARE MANUAL MM INA M TD 000086 00 Rev B 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 OSG cannot be held responsible for network conflicts and associated consequences that may result For this reason OSC strongly recommends that the network used for implementa tion of OSControl products be completely separate from all other networks data or otherwise As such should you elect to integrate OSControl products with your existing network system all risks attendant to such integration of OSControl products with your existing network or network systems are assumed by you While OSC strives to provide the highest quality technical solutions for networked audio products in no event will OSC 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 OSControl products with your networking systems No agent employee or representative of OSG has any authority to alter or modify in any manner the disclosures and recommendations setforth herein Copyright 2001 0SC Audio Products Inc OSCO is a registered trademark of QSC Audio
22. TANDBY mode When setting up your own presets they should be stored in Preset 1 through Preset 15 See next page for notes regarding Preset 14 s use as a scratchpad The reason for not actively using Preset 0 is as follows Let s say you re operating your system in Preset 12 and you change the setting of one fader The new setup is NOT the same as Preset 12 so the CM16a starts a 4 minute timer from the time the control was changed After the 4 minutes has elapsed with no further control changes it saves the NEW scene into Preset 0 Preset 12 is left unchanged Whatever was in Preset 0 is now gone forever This insures that the next time the CM16a is powered up it s settings are the same as you left them Remember the CM16a always powers up in Preset 0 Refer to the software documentation for further information Preset 0 will only be overwritten 4 minutes after the last control change This includes if the CM16a is placed into one of its BYPASS modes as discussed in the following section If the CM16a is placed into BYPASS mode and operated for at least 4 minutes without control changes then the BYPASS mode is saved in Preset 0 The next time the CM16a is powered up it will start up in Preset 0 or BYPASS in this case This could cause dangerously high output levels from the system Insure amplifier gain controls are reduced to safe levels ANY time BYPASS mode is used The CM 16a has all outputs momentarily muted at power up t
23. UNCTIONS Input Sensitivity Sets the sensitivity of the Page Input to either I Vrms or 3 Vrms This selection should coincide with the level of the audio signal provided for the Page Input DAG This is a digital to analog converter that takes digital information from the internal microcontroller and outputs the corresponding analog equivalent to the appropriate channel PAGE insert points This oc curs only by instructions issued by the system operator or a custom control application Page Input This is a 3 pin terminal block connector used for balanced line level page audio signal input 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 and other diagnostic purposes Most users will never have a need to access the RS232 port but for customized networks and for troubleshooting system problems it may be necessary For the RS 232 port utilities see the Operation section Serial Port 1 0 Interface which out lines the proper connection and communication settings required to communicate with the CM16a via the serial RS232 port If the CM16a is connected to an Ethernet network where the factory provided IP address information is not acceptable the IP configuration may be changed using the RS 232 port This involves connecting a com puter with a properly configured serial
24. abeled 70BASE T on the rear panel RJ 45 is the standard network connector for Ethernet networks Insert the RJ 45 plug into the receptacle with the lock tab oriented toward the bottom of the CM16a and push firmly until the connector locks into place usually an audible click can be heard Refer to Section 1 of this manual for Ethernet connection schemes and cabling Ifthe CM16a is connected direct yto the system control ler computer s network interface card a crossover type cable is required All other connection methods utilize normal Ethernet cabling CONNECTING TO THE RS 232 PORT Connection is made with a null modem serial cable with a DB 9 male plug to the CM 16a The AS 232 port canbe 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 Do Not Change the Network Address unless you are certain of what you are doing Refer to Section 3 page 27 for more information CONNECTING TO 2 CHANNEL AMPLIFIERS 2 channel amplifiers require a cable connection from the amp s DataPort to the appropriate PORT receptacle on the CM16a These HD 15 type connectors are labeled PORT A through PORT H Use standard 15 pin VGA monitor cables the same type of cable that interconnects PC s amp monitors To connect the cable to the CM16a orient the HD 15 connector with its wider side down look at the connector one side of the plug sm
25. amp TTL signal compatible and one dry contact floating SPDT relay output Input Trigger Stand alone Mode The Amplifier Network Monitor shall be capable of recalling up to two Presets by the triggering of the contact closure sense input alone The user shall have the option to enable disable this function Data Network All Amplifier Network Monitor functions shall be controlled and monitored via a 10BASE T Ethernet digital control network using the IP transport protocol and the OSControl monitoring application protocol Rear panel connection shall be provided for 10BASE T Ethernet Other than the AC power switch and manual bypass switch the Amplifier Network Moni tor shall have no manual controls The Amplifier Net work Monitor shall continue to operate uninterupted should the network connection be lost for any reason Amplifier Interface The Amplifier Network Monitor s inter face to each power amplifier Data Port shall be via an HD 15 connector The amplifier interface shall use a standard personal computer Video Graphics Adapter VGA CRT monitor cable This interface shall transmit two amplifier input audio signals as well as all control and monitoring signals Special signal conditioning and grounding techniques shall be used in this inter face to ensure negligible levels of noise and crosstalk General All audio inputs and outputs shall be balanced with a nominal input level of 4 dBu and maximum level of 21 dBu I
26. art data Restore preset Rly Trig in stand alone control setup options Display version information Memory map information 3 lt 5 JO 01 B W N 7 I Connected 0 00 03 Auto detect Auto detect NUM 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 7 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 Any differences in menu text from the above example might occur after any firmware updates of the CM16a Fromthis main menu you will need to make your menu choices and follow the instructions in the following sub menus or screens Although many of the instructions and tests may not pertain to a specific setup or troubleshooting situation you may be asked to run certain tests by a QSC technical representative The results of these tests will help to troubleshoot any problems The most common user item that might require settings to be changed would be the IP address information This would be useful if the IP address was inadvertantly changed to an unrecognized address and subsequently yo
27. best possible results for the end USEr From all of us at OSC Audio Products thank you for your purchase Note PLZA amplfiers have programmable filters and crossovers This makes gain reporting to the host unreli able as the frequency content relates directly to reported output levels Since the output level is used to calculate gain it is not possible to gaurantee accurate gain reporting when the PLZA is set for any of its various frequency boost cut crossover modes Section 1 Introduction Physical Characteristics amp 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 The weight of the CM16a is approximately 5 kilograms 11 pounds 1 3 9 7 TED AMPLIFIER M6 O n 2 4 6 FRONT PANEL numbers correspond to reference locations shown in illustration above 1 POWER switch 2 Cooling air exhaust vents intake vents are located on left side of chassis as viewed from the front 3 POWER on indicator 4 DIAGNOSTIG indicator 5 RCV XMT and LINK STATUS network status indicators 6 PORT A PORT H connection indicators 7 Access
28. ch audio path this cable can be used over distances as long as 100 meters 328 feet The maximum length of any 10BASE T Ethernet network segment cabling between any node and the next node hub or repeater is 100 meters 328 feet The location of hubs and repeaters must be suchthatthis distance limitis not exceeded If this is impractical or impossible then use appropriate network transceivers and fiber optic cabling For larger Ethernet networks the use of Ethernet routers may be necessary MOUNTING THE CM16a 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 OSC s Technical Services Department to order rear rack ear extensions The rear rack ear extension kits add flexibility to you installation options as well as a support pin option that requires one time hardware installation at the rear of the rack For the locating dimensions of the rear support mounting tabs see the dimensional diagram in the specification section 17 Section 2 Installation Mounting and AC Power MOUNTING THE CM16a continued The illustration below left shows the basic mounting technique Support the CM16a from underneath while positioning the mounti
29. e current revision level of software consult software documentation for supported feature set Where applicable functions are available on each individual audio channel CONTROL FUNCTIONS Amplifier Power Standby Operate Control CM16a Input Sensitivity Select Input Source Select Normal Page Signal Level Control Signal Mute Signal Polarity Select Paging Control with customizable routing Contact Closure Output switching of internal relay for control of external device Paralleling within DataPort Pair MONITOR FUNCTIONS Amplifier Power Status Amplifier Gain Amplifier Model Bridge Mode Load Monitor impedance Protection Status Output Voltage Output Current Output Power real Heat Sink Temperature with Over Temp Headroom Clipping Detect Output Short Output Open CM16a Input Level Meter Output Level Meter Audio Monitor Module 4 channel mono mixer External Event Sensing a logic level or switch input SPECIAL FEATURES DAG 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 Section 1 Introduction Block Diagram part 1 Port A Channel 1 amp Channel 2 same block diagram for Ports B through H Input Level Control Input Source dB Steps Normal Page e gt Sensitivity 1V 3V Post fader Monitor Paging Insert AUDIO INPUTS
30. ecifications Power amplifier management Power amplifier interface Compatibility Connector and cable QSC Data Port equipped amplifiers HD 15 VGA cable 2 meters length qualified for longer runs contact OSC s Technical Services Department Amplifiers Amplifier status monitor Clip indicator 16 amp channels grouped in pairs Senses channel clipping Bridge mode status Sense bridge mode setting Protect indicator Temperature meter Over Temp Alert AC power control AC mode control AC power indicator Senses amplifier protect status Reports amplifier operating temperature Software adjustable threshold Switches amplifier between normal and standby mode Indicates operate standby or power down mode Control room foldback monitoring Signal monitoring buses per CM16 Number of Channels Internal signal tap points Pre fader input signal Post fader input signal Power amplifier output Monitor input Nominal level Maximum level Input impedance Configuration Common mode rejection 1 16 16 16 Mixed with tap point signal at unity gain 4 dBu 21 dBu 10 kOhm balanced Electronically balanced shield connected to chassis Typical gt 50 dB 20 Hz 20 kHz Worst case gt 40 dB 20 Hz 20kHz Output Frequency response Distortion Noise floor Nominal level Maximum level Output impedance Output load Configuration Level Monitor in to monitor out Control range Sum o
31. eset 15 will be recalled After the first transition the CM16a will toggle between Preset 14 and Preset 15 with the corresponding contact closed open position Note that the presets will only be recalled starting with the first transition of the contacts opened OR closed For example if we are currently running Preset 2 with the contacts connected to RLY TRG IN closed and then change to MODE 3 nothing will happen except continuing operation in Preset 2 Now if the contacts are opened Preset 15 will be recalled Finally if the contacts are closed now Preset 14 will now be recalled At this point you can not recall Preset 2 without using the control software Only Preset 14 amp 15 will be available using the contact I O 25 Section 3 Operation Bypass Modes and Switch Location NOTE Before depressing the BYPASS switch the gain settings on all amplifiers connected to the CM16a must be reduced to a safe level This is because the CM16a s Level Control will be reset to 0 dB with the BYPASS Amplifiers could be at maximum output level if the amplifier gain controls are not turned down BYPASS MODE 1 virtual wire mode Use this mode if you need the CM16ato behave as a virtual wire This BYPASS mode routes all audio straight through with 1Vrms input sensitivity PAGE input disabled MUTE disabled 0 dB level and normal polarity All amplifier control states are set to on Audio passes through the CM16a regardless of
32. etal surrounding is wider than the other and align itwith the receptacle then gently push into the receptacle until it is firmly seated Use the retaining screws on the cable ends to secure the plug to the CM16a and the amplifer Tighten finger tight to avoid damage to the HD 15 receptacle The same basic procedure applies forconnectingthe otherend of the cable tothe amplifier s DataPort Insert plug until this locking tab snaps into place To remove press up on locking tab and pull plug out CONNECTING TO 4 CHANNEL AMPLIFIERS Two basic rules must be adhered to First both DataPorts of the amplifier must be used Second both must be connected to the same CM16a If only one DataPort connection is used the CM16a will not control or monitor the amplifier correctly the same applies for connecting the two amplifier DataPorts to two separate 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 Cand PORT D You can use any two ports for convenience the only impact of doing this is that the System Manager software control panel will not show all four channels next to each other 21 Section 2 Installation Rear Panel Detail 22 RLY OUT 3 pin terminal block receptacle used for connecting RLY TRG IN 2 pin terminal block to the CM16a s internal relay receptacle
33. f Monitor input and signal from internal monitor tap point 25 Hz 20 kHz 0 5 dB lt 0 05 THD 4 dBu out 90 5 dB 4 dBu 21 dBu 75 Ohms balanced 600 Ohms minimum Active balanced Adjusts amplitude of signal from tap poin 0 dB 0 5 dB 95 5 to 0 dB in 0 5 dB steps Contact closure inputs and outputs Inputs Configuration 1 discrete input RLY TRG IN Single ended input Resistance for closure detect lt 1kOhm max Resistance for open detect Input Voltage Limit gt 5 kOhm min 7 000 VDC maximum input terminal connected to chassis 34 Output Configuration Steady state current max Switched current max Ground isolation Connector 1 discrete output RLY OUT Electromechanical relay dry contacts floating C NC NO 0 5 A 0 25 A 70 volts maximum Phoenix style a k a Euro style detachable terminal block connectors Section 4 Specifications Network Interface 10BASE T 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 10BASE T Cable type CAT 3 or better twisted pair Max cable length 100 m to hub Grounding Floating Factory IP Address Supplied on front panel sticker a s shipped from factory Transport network Internetwork protocol Transport protocol Application protocol Version Revision Network fail safe TCP IP IP UDP QSC24 1
34. for the line voltage the CM16a is connected to If a ox x i I different type of IEC power cord is required different style of plug on the outlet end contact IEC POWER CORD RECEPTACLE OSC s Technical Services Department to obtain the correct cord assembly DO NOT CONNECT THE CM16a TO POWER SOURCES OUTSIDE THE SPECIFIED RANGES OF VOLTAGE OR FREQUENCY DAMAGE TO THE UNIT COULD RESULT OR THE USER COULD BE EXPOSED TO UNSAFE OPERATING CONDITIONS 18 Section 2 Installation Connections 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 Phoenix or Euro connectors These connectors al low the installer to pre wire the input ter minations before the CM16a is installed in the rack It also allows for re routing of REAR PANEL AUDIO INPUTS Gow E SE E oo ol A A au N PORT A CH1 PORT ACH 2 77 pe PORT E CH 10 PORT BCH3 PORT BCH4 PORTCCH5 PORT C CH 6 rn pr pun PORT F CH 11 PORT F CH 12 PORT 6 CH 14 PORT D CH7 rh PORT HCH 15 PORT H CH 16 lt lt o o o FS ooo 7 III 7 a n le JE CO gt o 3 audio inputs by simply interchanging connector locations without the need for any tools See Appendix page 38 for connector manufacturer s part number reference
35. hole for the BYPASS switch this is not labeled on the panel Section 1 Introduction Physical Layout Diagram REAR PANEL numbers correspond to reference locations shown above 1 DataPort connectors PORT A PORT H 2 PORT A CH1 PORT H CH 16 three pin receptacles for audio inputs 3 PAGE three pin receptacle for paging audio signal input 4 MONITOR CHAIN IN and OUT five pin receptacle for audio monitoring functions 5 RLY TRG IN two pin receptacle for remote sensing of switch closure or logic event 6 RLY OUT three pin receptacle for output terminals of CM16a s internal SPDT relay contacts 7 RCV XMT and LINK STATUS network status indicators 8 10BASE T RJ 45 Ethernet computer network connection 9 RS 232 port for network and firmware utilities 10 IEC type detachable AC power cord receptacle for connection to AC line cord with integral fuse holder Section 1 Introduction List of Functions amp Features FUNCTIONAL LISTING BLOCK DIAGRAM amp DETAILED DESCRIPTIONS The CM16a performs remote control and monitoring of amplifiers Below is a listing of the functions available for the supported OSC amplifiers The following two pages Block Diagram part 1 amp 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 Note that not all features may be supported by th
36. ignal may preemptthe program signal of any or all ofthe sixteen program channels This input shall have select able 1V or 3V sensitivity Amplifier Output Monitoring For each of the sixteen power amplifier outputs the Amplifier Network Monitor shall provide clipping detection short and open circuit de tection voltage and current metering and audio moni toring of the voltage signal Amplifier Management For each of the eight DataPort con nections the Amplifier Network Monitor shall provide AC standby operate mode control AC power state indication temperature metering load status and protect status detection Audio Monitoring Chain For each of the sixteen program channels the Amplifier Network Monitor shall provide three monitor points as follows 1 pre fader control 2 post fader control or 3 power amplifier output A channel s monitor output may be selected from one of these three signals or it may be switched off The signal at the Amplifier Network Monitor s monitor output connector shall be the sum of the signal at its monitor input connector and four selected channel monitor signals A monitor gain control shall be pro vided for each monitor tap point to adjust the indi vidual levels of the channel monitor signals prior to their being mixed with the monitor input signal Contact Closure 1 0 The Amplifier Network Monitor shall provide a trigger contact closure sense input which shall also be CMOS
37. is in the on position If not verify that the IEC power cord in properly connected to the unit and to an operating AC source between 100 and 240 volts Operation of the CM16a is accomplished with OSControl soft Ware START UP BEHAVIOR AND PRESET OPERATING MODES t is important to understand the start up behavior outlined below Some of the terminolgy is specific to OSControl software refer to the software s helpfile for detailed informa tion When firsttaken outthe box the CM16a will power up in a muted state with all faders at 95 50B polarity set to normal sensitivity set to 3V and any amplifiers connected to the CM16a will be in STANDBY mode This setup is the factory setting PRESETS The CM16a has 16 Presets for quickly recalling settings They are numbered 0 zero through 15 These presets are useful for quickly changing from one setup to another without having to change each individual control to a new setting An example might be in a house of worship where the audio system setup is different for each service Instead of having to keep a trained system operator on location another individual with minimal training can be shown how to change to the desired preset for each situation 24 The presets are useful tools but Preset 0 acts differently than the others Each time the CM16a is powered up itrecalls its settings from Preset 0 The factory Preset 0 discussed above is a muted state with amps in S
38. leshooting purposes along with a OSC 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 be tween your computer s serial port and the RS 232 port of the CM16a Once properly connected a dumb terminal program such as Hyper Terminal a widely used version on most Win dows based PC s is started and communication established between the PC and the CM16a Following is the basic procedure for starting up Hyper Terminal naming the connection specifying the communications settings and an example of what you should see for a text menu once the communications link has been established As many differ ent systems and configurations exist on user s PC s the exact appearance of the screen shots may vary from those shown Furthermore if programs other than Hyper Terminal are used you will need to follow your software s instructions for establish ing communications through your PC s COM serial port C PROGRA 1 ACCESS 1 HYPERT 1 File Edit Yiew Help SHypertemini gt fa 5 amp x seose 6 object s 346KB AT amp T CompuSer hticons dil hypertrm dil Hypertrm RS 232 Communications Procedure 1 Connect the RS 232 port of the CM16a to an unused serial port COM port of a PC using a null modem type cable These cables are different than the ordinary serial cable 2 Open the
39. n relief was available through QSC See Section 6 Appendix for connector part numbers 19 Section 2 Installation Connections CONNECTING PAGE INPUT The PAGE input connections are the same as the AUDIO INPUT connections Please refer to the previous page for connector pinout CONNECTING THE RLY TRG IN The ALY TRG INconnectoris a two pin terminal block connec tor When using this input for a switch closure or opening event the two terminals should be connected to the switch contacts directly This type of event detection canbe used with relay contacts as well If used with a logic type device the low end of the logic connection should be connected to the minus terminal and the active end should be connected to the plus terminal This input is compatible with TTL amp CMOS logic family de vices For the defined limits of input to this connector please refer to the specification section TIP This input can be used to switch between stand alone preset operating modes without the need of a computer Setup for this feature is avail able through RS 232 or Telnet communications CONNECTING THE RLY OUT The ALY OUT connector provides access to the internal relay s contacts for remotely controlling an external low voltage device or circuit This internal relay is rated for 70V DC or ACrms 250 mA switched and is isolated from ground There is one common terminal one normally closed contact terminal and
40. net switch may be used as well Active hubs clean up and retransmitthe network traffic much as a repeater does only with multiple ports The active hub or switch would allow for future expansion If there are two or more CM16a sin the network or other network de vices present use a hub or switch to create a star topology AMP fr Ordinary VGA cables TE between CM16a and AMP amplifier DataPorts AMP System Controller AMP Computer a BEE J RJ 45 to RJ 45 Ethernet AMP bid KE CROSSOVER TYPE CABLE F al st Category 3 or better AMP Ms Di lt 100 m 328 ft AMP nannan AMP kr Ordinary VGA cables AMP between CM16a and a amplifier DataPorts b AMP ss System Controller Su Computer 3 or hu AMP X a C FI RJ 45 to RJ 45 Ethernet Cable AMP Category 3 or better i Fi amp lt 100 m 328 ft AMP ET Ordinary VGA cables AMP NR i Va between CM16a and KO amplifier DataPorts HUB aa System Controller OR Computer Upto8 mm SWITCH Amplifiers i r I n N a I AMP fr RJ 45 to RJ 45 Ethernet Cable l p 1 Category 3 or better a I lt 100 m 328 ft I m AMP AMP I Up to8 vi a Upto8 Amplifiers Amplifiers AMP crase AMP 15 Section 1 Introduction Sample Network Topologies
41. ng 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 notto obstruct these openings Allow ample open space around them in order to maintain unobstructed air flow Rear Support Mounting Tabs COOLING AIR EXHAUST VENTS DO NOT OBSTRUCT Note The CM16a s recommended ambient operating temperature is 0 C to 50 C 32 F to 122 F Do not install the CM16a in environments that expose it to temperatures outside this range Some equipment rack environments can get hot If there is any question measure the air temperature inside the equipment rack and supply additional cooling airflow to keep the ambient temperature within the specified limits OSC amplifiers use back to front air flow and therefore do not exhaust hot air into the rack CONNECTING AC POWER The CM16a uses a detachable IEC standard power cord for connecting to a grounded AC REAR PANEL POWER CORD RECEPTACLE source To connect power to the CM16a identify the proper end of the cord match the E E Fann orientation of the receptacle on the rear panel and insert firmly into the receptacle The I A power supply will accept from 100 to 240 Volts AC 47 to 440 Hertz without any changes Co The power cord used must be suitable
42. nput connectors shall be of the Phoenix detachable terminal strip type The Amplifier Network Monitor shall be the OSC CM 16a Section 6 Appendix Ethernet Cable Pinouts ETHERNET CABLING This diagram shows the pinout for standard unshielded twisted pair UTP network cable Both ends of the cable are wired identically Tx White orange bi Wat fan n not used Blue S RJ 45pinoutfor standard Ethernet notu used White blue not used White brown patch cable both ends identical not used Brown 1 2 3 4 5 7 8 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 1 White orange 2 Orange 3 White green 5 White blue reen 7 White brown 8 Brown RJ 45 pinout for an Ethernet crossover cable 1 White green Green 3 White orange Blue 5 White blue range 7 White brown 8 Brown NULL MODEM CABLE PINOUT TX G 2 RX RS 232 Null Modem Cable Pinout RX Z 3 T X CM16a end of cable must be male pins RSID computer end of cable is usually female CTS RTS DSR 6 DSR Gnd 5 5 Gnd DCDA T DCD DTR
43. nt and rear panels labeled RCV XMTand LINK STATUS Their functions are described below RCV This LED lights up any time the CM 16a receives data over the network XMT This LED lights up whenever the CM16a transmits data over the network 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 These LED s are labeled PORT A through PORT H on the front panel The respective LED will illuminate when functional connection has been made between the CM16a and an amplifier The amplifier s power does not have to be ON in order for the LED to indicate successful connection 23 Section 3 Operation General Information amp Presets AMPLIFIER SETUP The amplifiers connectedto the CM16a must have their power switches in the on position For initial testing it is advisable that the amplifiers be set for the lowest useful gain volume setting until it is verified that the system is operating as expected After the system setup has been verified and tested gain settings may be set as required NETWORK The network should be operable and OSControl software should be installed running on the system controller computer CM16a OPERATION To turn the CM16a on press on the upper portion of the power switch The green colored POWER LED will illuminate when the power switch
44. nt of the signal level deliv ered to the Monitor Module from each of the selectable tap points of a channel s audio path Adjustment is from 95 5dB to OdB in 0 5 dB steps Monitor Module This module functions as a four input mixer with software selection of the input channels The four selected channels are summed with the external input Monitor Chain In For each of the inputs the tap point is selectable from the pre post amplifier and off positions AMPLIFIER CONTROL FUNCTIONS Standby Operate Controls the amplifier s power status ON amplifier operational STANDBY amplifier in standby mode NOTE The amplifier must be powered in order to respond to any commands issued by the CM16a This means the amp s power switch must physically be in the ON position 11 Section 1 Introduction Detailed Description of Functions 12 AMPLIFIER MONITORING FUNCTIONS Amplifier Model Detect Identifies what model of OSC 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 Bridge Mode Detect Detects the position of the bridge mode switch on each amplifier Clip Detect Detects amplifier clipping on each chan nel Headroom Metering Reports the available re maining signal level that the input signal can be driven before clipping will occur Heat Sink Temperature Metering Monitors the heatsinktempera
45. o prevent unexpected audio pops clicks orthumps Remember At power up the CM16a will always start operating with the settings saved in Preset 0 Once network communication has been established between the host computer and the CM16a the CM16a may be controlled remotely In the event that the network communications link is lost while the CM16a is operating it will continue to operate with its last settings intact Section 3 Operation Recalling Presets Using RLY TRG IN There are three operating modes for recalling presets using the RLY TRG IN of the CM16a anda set of external contacts switch relay or other such device These modes are set up and accessed using the OSControl 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 Oscontrol software help file for the most up to date information MODE 1 Recall Preset 15 when contacts connected to RLY TRG IN contacts are opened Restore previous settings when contacts connected to RLY TRG IN are closed Preset 14 is used as a scratchpad and is OVERWRITTEN Whatever was in Preset 14 is GONE forever Once in this mode the first time there is a transition from contacts closed to contacts opened the currently running settings will be saved and
46. ommon mode rejection Crosstalk inter channel within Data Port pair Crosstalk intra channel between Data Port pairs Outputs Program outputs Connector type Pinout Cable type Qualified length Monitor output Connector Type Grounding Nominal level Maximum level Output impedance Typical gt 50 dB 20 Hz 20 kHz Worst Case gt 40 dB at 20 kHz gt 75 dB separation 20 Hz 20 kHz gt 85 dB separation 20 Hz 20 kHz measured with all inputs and outputs terminated 16 via HD 15 8 HD 15 data port connections Special see appendix VGA monitor cable 2 meters 1 Phoenix style a k a Euro style detachable terminal blocks Electronically balanced Shield terminal connected to chassis 4 dBu 21 dBu 75 Ohms balanced Output load 600 Ohms minimum Power amplifier output processing Power amplifier output monitoring Output short detect Senses load lt 1 Ohm for Stereo Parallel modes lt 2 Ohms in Bridged Mono mode Threshold is adjustable in software Output open detect Senses load gt 60 Ohms Threshold is adjustable in software Output voltage meter Range automatically matches to amplifier model used Output current meter Range automatically matches to amplifier model used Amp gain determines amplifier gain control setting range atomatically matches to amplifier model Signal level must be greater than 32 dB referenced to maximum output of amplifier 33 Section 4 Sp
47. onnected amplifiers are forced to the standby state and all audio paths are muted Also no OSControl communication is possible only TFTP or Telnet or RS 232 Location of BYPASS switch The front panel has a small BYPASS SWITCH access hole on the right side about 12mm 1 2 to the right from not labeled the PORT HLED It is NOT LABELED to help prevent accidental use This is the BYPASS mode switch To return to normal operation simply reestablish computer communications via the network or RS 232 and change the appropriate settings or recall D PORT PORT PORT PORT E F G H a previously saved Preset After completeion of a successful TFTP file transfer code re program cyclefrom the safe mode the CM16a will automatically restart in the normal mode of opera tion 26 Section 3 Operation Serial Port 1 0 Interface The RS 232 connector on the rear panel is used as a serial port input output 1 0 This 1 0 port is used for accessing Ethernet IP settings stand alone control capabilities system health data firmware version information and other related data This interface is not used by the majority of users But should any system problems arise the data that may be accessed through this interface can help to track down the problem The most common items that might be used are Display Network Set tings and Enter Network Setup Many of the remaining selections would typically be used for troub
48. osition 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 The fuse holder is an integral part of the IEC connector It contains two fuses To replace a fuse first detach the AC power cord from the CM16a e Then use a flat blade screwdriver to pry the fuseholder out as shown at left The fuses are held in the round openings in the end of the fuseholder as shown at left below Replace one or both fuses with the same type 20x 5mm 2 amp 250V A visual inspection of the fuse will usually indicate if the fuse has been blown or not This method is not foolproof however as sometimes the fuse element is severed close to the end cap making it impossible to see the break When in doubt test the fuse with an ohmmeter or just replace the fuse Below is an illustration of a typical clear glass cartridge fuse The GOOD fuse has an intact element from end to end and the BAD or blown fuse has a break in the element GO0D BAD If the CM16a continues to blow fuses DO NOT INCREASE THE FUSE RATING as severe 2A 250V damage to the CM16a could result Contact OSC for service if fuses repeatedly blow 20 x 5 mm FUSE 2 required
49. port to the CM16a using a null modem type cable such as a Laplink cable and running a dumb terminal program HyperTerminal is the Microsoft Windows supplied program DO NOT CHANGE THE FACTORY SETTINGS UNLESS YOU ARE CERTAIN OF WHAT YOU ARE DO 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 CONTACT CLOSURE 1 0 FUNCTIONS RLY OUT This isa 3 pin terminal block connector used for remotely controlling an electrical device in an on off manner such as a cooling fan an audible alarm a light etc An internal SPDT single pole double throw relay is controlled by software command Its contacts are accessible at the rear panel RLY OUT connector and are labeled NC normally closed NO normally open C common RLY TRG IN Detects the closure or opening of a switch connected to the ALY TRIG IN terminals on the rear panel Also accepts CMOS and TTL logic level inputs An example is the detection of a limit switch that indicates an open door on an equipment cabinet This input may also be configured to activate recall certain presets without the need for a computer Setup for this feature is possible using the Serial Port 1 0 or Telnet sessions outlined on pages 27 30 ref menu item 10
50. r not to defeat the safeguards observe the following instructions for its installation use and servicing CAUTION To reduce the risk of electric shock do not remove the cover CAUTION No user serviceable parts inside Refer servicing to qualified service RISK OF ELECTRIC SHOCK personnel DO NOT OPEN WARNING To prevent fire or electric shock do not expose this equip ment to rain or moisture 1 Maximum operating ambient temperature is 50 C 122 F Federal Communications 2 Never restrict airflow through the device fan or vents Please insure that the air intake and exhaust vents are unob structed 3 When installing equipment into rack distribute the units evenly Otherwise hazardous conditions could be created by an uneven weight distribution 4 Connect the unit only to a properly rated supply circuit The CM16a is suitable for connection to 100 240 VAC 47 440 hertz with no special considerations other than the appropriate IEC power cord 5 Reliable Earthing Grounding of rack mounted equip ment should be maintained Commission FCC Information NOTE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are de signed to provide reasonable protection against harmful interference ina commer cial installation This equipment gener ates uses and can radiate radio frequency energy and if not
51. s 2 Ch AMPLIFIER 2 Ch AMPLIFIER 2 Ch AMPLIFIER Detachable IEC Power Cord 2 Ch AMPLIFIER 2 Ch AMPLIFIER From Monitor Chain Out of upstream CM16a To monitoring device input or to downstream CM16a Example electrically operated projection screen could be operated by system operator CM16a relay contacts can be connected to external control Ethernet Network Connection Section 3 Operation LED Indicators LED Indicators When the power is switched on all of the LED s light briefly and then the PORT LED s sequence through two patterns The LED s then resume normal operation The LED functions are described below POWER LED POWER DIAGNOSTIC LED DIAGNOSTIC NETWORK STATUS LED s e 0 RCV XMT LINK STATUS PORT CONNECTED LED s PORT PORT PORT PORT PORT PORT PORT PORT A B C D E F G H This indicator illuminates when the CM16a power switch is in the on position This indicator illuminates during the power on self test then should turn off If it remains illuminated this indicates that the self test has detected an unexpected event such as a corrupted firmware update via TFTP or a memory boot failure If the DIAGNOSTIC LED remains illuminated try resetting the CM16a by cycling power off and on once Should the indication persist contact OSC s Technical Services for guidance There are three LED s on the fro
52. t 1 Summing Amplifier gt Software Selectable Input 2 Channel Monitor Input Sources gt Input 3 gt Pre fader From Channel Post fader Vg Tap Points 9 Amplifier amp Off Input 4 Monitor Chain Output From Upstream CM16a INTERNAL MICROCONTROLLER Ethernet Connection connects to all internal CM16a modules RJ 45 o Contact Closure RS232 yt i vai B Input Output PAGING INPUT MODULE RLY TRIG Input DAC To Software selected Channel Insert Points Input Source Normal Page block Ch 1 Ch 16 Input Sensitivity 1V 3V Page Input analog 10 Section 1 Introduction Detailed Description of Functions AUDIO FUNCTIONS Audio Inputs These are the 3 pinterminal block connectors used for balanced line level audio signal input This type of connector is sometimes called Phoenix or Euro style Input Sensitivity Sets the sensitivity of the Audio Inputs to either 1 Volt or 3 Volts r m s This selection should coincide with the level of the audio signal provided for each channel Input Source Normal Page Selects the input source for each channel Normal input is the audio connected at the Audio Input terminals Page input is the audio provided by the Paging Input Module Level Control Provides adjustment of the signal level delivered to the amplifier for each channel Adjustment is
53. ture of each channel ofeach amplifier connected to the CM16a If the temperature exceeds a user specified value in software then the Over Temp object will alert the system operator Load Monitor Detect Monitors the impedance of the load at the amplifier output for each channel Output Current Meter Provides for metering of the amplifier s output current on each channel Output Voltage Meter Provides for metering of the amplifier s output voltage on each channel Output Open Detect Detects when the load con nected to the amplifier is above a user specified value in software Output Short Detect Detects when the amplifier load is below a user specified value in software Power Status Detect Reports AC power status of the amplifier ON standby OFF Protect Status Detect Reports if the amplifier has entered protect mode such as thermal over current or power up muting protect status Real Power Detect Reports the real power the amplifier is delivering This real power is not the same as reactive power Real power is the product of current and voltage times the cosine ofthe phase angle between them Threshold Adjust This indicates that the behavior of the associated block requires the input of a threshold value in software that must be crossed for the detection to occur This allows the system operator to tailor the behavior of the system to each application PAGING F
54. u were unable to talk to the CM16a over the network This situation would require the Display Network Settings and Enter Network Setup items to be accessed for re assigning a good IP address IP ADDRESS ASSIGNMENT ONLY REQUIRED FOR ATTACHING TO EXISTING NETWORKS DO NOT CHANGE THE COMMUNICATIONS SETTINGS OF THE CM16a UNLESS CERTAIN OF YOUR ACTIONS THE FACTORY PROGRAMMED IP ADDRESS IS PRINTED ON A LABEL AFFIXED TO THE FRONT PANEL OF THE CM16A WHEN IT IS SHIPPED RECORD THIS IP ADDRESS SHOULD YOU NEED TO RETURN TO THE INITIAL SETTINGS 29 Section 3 Operation Telnet Access The RS 232 features can be accessed via the network The Microsoft Telnet application is a Windows program Consult Windows documentation for Telnet information 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 2 If the address entered was correct and network communications with the CM16a are successful the Telnet session should open 3 Now you have the same options that are available in the Serial Port I O RS 232 interface section see page 29 30 Section 3 Operation Fuse Replacement FUSE REPLACEMENT If the CM16a does not power up when the POWER switch is in the on p
55. used for sensing external contacts Used for controlling events like a switch closure external devices with software 10BASE T Connection RJ 45 type receptacle for connection PAGE Connector 3 pin Phoenix type to Ethernet network receptacle for connection to page audio source via shielded balanced PORT A through PORT H connectors HD 15 type audio cabling RS 232 Port receptacles used to connect to amplifiers via an i DB 9 receptacle ordinary 15 pin VGA monitor cable for communications utility use PROGRAM audio INPUTS 3 pin terminal block receptacles used for connecting audio program source inputs to the CM16a via shielded balanced audio cabling AC POWER amp FUSES Connect the detachable IEC power cord here MONITOR CHAIN IN OUT 5 pin Power supply is universal input and Phoenix type receptacle used for accepts from 100 240 VAC monitoring up to four internal pick off points and summing them with See OPERATION section for detailed the signal applied at IN terminals fuse replacement information NETWORK STATUS INDICATORS These LED s indicate certain types of network activity as described in Section 1 Network Description Paging Microphone Mic Pre Amp 4 Ch AMPLIFIER Projection screen controller circuit Example Switch to activate Power up 2 Ch AMPLIFIER subroutine circuitry for screen Inputs 16 balanced input
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