Rauland Mca100 Series Master Control Panels 电路图.pdf

KI-1152-B DIRECTOR SERIES MASTER CONTROL PANELS MODELS MCAlOO, MCAlOOA, MCBlOO AUXILIARY -65 dB Tone Control Range: 10 dB at 100 Hz and 10 kHz Compression Amplifier: 20 dB range(less than 2% distortion) Program Inputs: MICROPHONE, three; balanced 150 ohm; 0.3 mV sensitivity AUXILIARY, four;unbalanced 250 k-ohm; 0.25 V sensitivity BRIDGING (EXPD), one; unbalanced 10 k-ohm; 0.25 V sensitivity Power Requirements: 28 V dc,and 6 V ac (for switch lamps) Lamp Life Expectancy: 50,000 hours Unit Size: 19 panel x 3 high x 7% deep SPECIFICATIONS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE PAGE 2 RadioFans.CN 收音机爱 好者资料库 1. DESCRIPTION 1.1 General The Model MCAlOO and MCBlOO Master Control Panels provide the program channels for the Rauland DIRECTOR Series School Sound/ Communications Systems. Each master control panel provides one program channel which operates independently of the other program channel. This permits separate selection, audio processing, monitor- ing, and distribution of the two program channels. The Model MCAlOO serves as the main panel and is designated the GREEN A CHANNEL. The Model MCBlOO serves as the secondary panel and is designated the BLUE B CHANNEL. The two Models differ only in that the Model MCAlOO includes EMERGENCY and ALL-CALL switches, with corresponding program priority switching and audio processing circuits. The panel color designations provide the means for simplified equipment operation. All associated equipment panels are color coordinated to these master control panels. The use of color coordinated equipment panels, illuminated switches,and step-by-step operating instructions screened on the equipment panels virtually eliminates operator error. 1.2 Features These master control panels provide the following features: -State-of-the-art circuitry using integrated circuits for logic switching and some audio amplification stages. This minimizes power consumption, increases reliability,and reduces maintenance costs. -Selection of seven program input sources; three MICROPHONES and four OTHER PROGRAM SOURCES (auxiliary inputs). The microphone inputs are balanced and are for low-impedance microphones. One microphone input is for the console operator and the other two are for remotely located microphones. The auxiliary inputs are high-impedance and are for in- puts from an AM/FM tuner, record changer, tape deck, etc. -Shared program source operation may be used allowing loop-through distribution of the same program through both the Green A CHANNEL and BLUEB CHANNEL. Any microphone input to the Model MCAlOO may be looped-through to the Model MCBlOO. Any auxiliary program source input to the Model MCBlOO may be looped-through to the Model MCAlOO. -An EXPD (expanded) or bridging program input allows four additional microphones to be used. The optional Rauland PRO 204 Microphone Input Expander is required when this mode of operation is used. (See Paragraph 2.2.3 for details.) -Remote control of the program volume level and/or remote selection Of program precedence. Precedence selection mutes respective input (either the microphone or the auxiliary source) giving program precedence to the other input. Remote control of either functionrequires the Rauland Model 47RCA Remote Control Adapter. (See Paragraph 2.2.1 for details!. PAGE 3 of 26 - Compression amplifier with 20 dB dynamic range assures optimum operation under widely varying program input levels. This eliminates the need of having separate volume controls for each of the seven inputs and their burdensome readjustment with each change of input level. - TREBLE and BASS tone controls with full adjustment range allow the response characteristic of the audio amplification circuits to be changed,matching the sound characteristics of the classrooms. - Monitor speaker with level control allows the selected program input to be heard prior to and during its distribution to the classrooms. - Program output level and impedance compatible with any Rauland SAX, TAX or DX Series Amplifiers providing between 60 and 250 watts of sound power for distributions to the classrooms. Any Rauland room selector switch panel may be used for program distribution to 25 rooms. Addit- ional switch panels may be added for distribution up to 200 rooms per master control panel. - ALL-CALL switch provides program distribution to all classrooms in the sound system,regardless of prior room selections made at the room selector switch panel (s ).TO ROOMS SELECTED switch provides program distribution only to those classrooms individually selected at the room selector switch panel(s) for the respective program channel. - EMERGENCY switch interrupts in-progress program distribution allowing immediate distribution of the emergency announcement to all classrooms in the sound system. Switches illuminate when depressed (engaged) indicating the selected - input for the program source and the type of room distribution. This takes the guesswork out of determining what was selected as frequently happens when conventional switches are used. - - System priority (take-over control) is readily established using jumper options. Different levels of priority may be assigned to: (1) an emergency announcement from the equipment operator; (2) the tone signaling output from the optional multi-tone generator; and (3) an administrative all-call, in systems using the optional administrative communication stations. Priority is always given to the highest level when two or three priorities occur simultaneously. - Three OUTPUT LEVEL indicators provide continuous visual monitoring of therelativeaudio output level routed to the associated high power amplifier. This allows the equipment operator to easily determine if the output is proper, eliminating the need for reading meters. Equipment operators seldom understand how to read meter scales or how to interpret the reading observed. - Direct accessibility to input source level controls, tone adjustment controls,phono-jacks and screw terminals; these items are mounted on the rear of the chassis. PAGE 4 of 26 2. ACCESSORIES 2.1 Required 2.1.1 Rauland Model - - - - - - - 28 V dc power source PSX29A DC Power Supply/AC Control - Provides the - - - - - - - - - - - for theDIRECTOR Series School Sound/Communication: System. Includes six relay-controlled 120 V ac power outlets for plug-in of associated equipment requiring ac power. This dc power supply/ac control is not required if the Rauland Model SAX60 or SAX100 All-Silicon Solid-State Power Amplifier is provided with the system, as these amplifiers include a 28 V dc power supply. 2.1.2 Rauland Model LP-0413 Transformer - - - - - - - - - - - - - - - - Provides the 6.3 V ac power source for theDIRECTOR Series School Sound/Communications System. All panel-mounted pushbutton switches use 6.3 V ac indicator lamps for long life expectancy. 2.1.3 Rauland Model MCRlOO Master Control Relax - Provides program source and intercom buss-gathering for routing ALL-CALL or EMERGENCY announcements or signaling tones to all rooms simultaneously. 2.2 Optional 2.2.1 Rauland Model 47RCA Remote Control Adapter - Permits remote control of the program volume,and/or remote precedence selection of the program input (either the microphone or auxiliary source). Humfreeoperation is provided by optically isolating the remote input from the adaptor output to the master control panel. May be used with either or both the MCAlOO and MCBlOO Master Control Panels. 2.2.2 Rauland Model 47RVC Remote Volume Control - Provides remote (up - - - to 2,000 feet) volume control of the program source. Accurate adjustment to the desired volume level is provided by the calibrated faceplate and the special taper of the potentiometer. 2.2.3 Rauland Model PRO 204 Microphone Input Expander - Allows four additional low-impedance microphones to be used. Separate input level controls and remote control terminations are provided for each microphone, This permits remote control of the input level,and/or remote precedence selection of the desired microphone. Add one Model 47RCA Remote Control Adapter and one Model 47RVC Remote Volume Control to the microphone input expander as required,for each remotely controlled input used. The Model PRO 204 may be used with either or both the MCAlOO and MCBlOO Master Control Panels. 2.2.4 Rauland Model MTGlOO Multi-Tone Generator - Provides signaling -_ tones that may be used for emergency alarm, weather alert, classroom change notification,or other similar applications. Five distinct signals may be generated;an interrupted tone (beeping), a continuous tone, a siren (high-low),European police car (warble), and a repeating chime. Solid-state circuitry is used providing instantaneous operation. This option requires the Rauland Model RX1027 Warning Tone Control Panel for selection of the tone signals. PAGE 5 of 26 2.2.5 Locking Master Power Switch - Prevents operation-_- - - - - - - - as power can only be applied through power off-on switch. unauthorized equipment the key-operated 3. INSTALLATION 3.1 Introduction These master control panels are available either as factory installed items,completely prewired and tested as an integral part of a DIRECTOR Series School Sound/Communications System, or separately for field installation into an existing sound system. In either case, peripheral equipment must interconnect as described in the following papagraphs. Sufficient information is provided to do a typical installation. Not every application or interface problem is described. The intraunit connections between these master control panels and the items that com- prise aDIRECTOR Series System are shown on the wiring diagram provided at the rear of this instructional manual. The wiring diagram includes cabling instructions and explanatory notes about interconnections, the addition of remote control options,and wiring changes needed to accommodate operation with different dc power sources and power audio amplifiers. 3.2 Equipment Damaged in Transit This equipment has been carefully inspected and tested at the factory prior to shipment. If the equipment was damaged in transit, notify the transportation company immediately to place your claim. 3.3 Mounting Master Control Panel (Field Installations Only) These master control panels may be mounted in any standard 19-inch rack. The minimum space requirements are: 3 high by 7 deep. Remember that sufficient open space must be kept behind the chassis for making equipment connections and to allow accessibility for equipment maintenance. Mount panel as follows: Step 1. Secure chassis to the rack with screws through the four mounting holes provided. It is recommended that l0-32 or larger hexagon head screws be used. Rauland supplied racks require l0-32 x 3/8 self-locking screws,and turrets require 10 x 3/8 sheet metal screws and 10-2 Tinnerman-type nuts. The mounting hardware is supplied with the equipment. NOTE If remotely controlled volume or program precedence is desired, install the Model 47RCA Remote Control Adapter before mounting the chassis. See Paragraph 3.8 for details. PAGE 6 of 26 Step 2. Install the front panel on the chassis using the two 6-32 x 3/8 binder head screws supplied. Install knob onto the monitor speaker level control. Make sure that the knob indexes properly with the OFF and MAX panel markings. 3.4 Master Control Panel Intraunit Wiring Check List Use the following check list and the wiring diagram provided at the rear of this instruction manual to verify that factory installed wiring is intact,and as a guide for making connections in the field. Refer to the respective equipment instruction manual for making con- nections to the MCClOO Communications Control Panel and to the MCCPlOO Administrative Communications Control Panel. Equipment and Termination Function MCAlOO and MCBlOO Power Connections - - - - - - - - - - - - - - - - - - 24 24 +28 V dc 23 23 Common 22 22 6.3 V ac 21 21 6.3 V ac MTGlOO to MCAlOO - - - - - - - - Multi-Tone Generator - - - - - - 1 3 2 25 3 4 9 1 10 3 MCAlOO to MCBlOO Muting Control - - - - - - - - 16 26Emergency Mute MCBlOO 28 28Mute MCAlOO orMCBlOO MCAlOO to MCRlOOARelay Enable - - - Tone Out Common MTG Control +18 V dc Chime Out Present (/1 14 12Switched Ground 3.5 Microphone Connections By making different connections,two microphone operational modes can be obtained: (1) individual operation where a separate microphone is used for each input;or (2) shared operation where one microphone is looped-through two inputs,allowing distribution of the same program through both master control panels.Connections for individual mic- rophone operation are made to the terminals on the rear chassis, as shown on the wiring diagram provided at the rear of this instruction manual. Connections for shared microphone operation are made to these same terminations,but only on the Model MCAlOO. Use a shielded, PAGE 7 of 26 twisted-pair cable to make parallel connections for the loop. from the Model MCAlOO to the Model MCBlOO. Do not connect the shield of this loopingcable to the Model MCBlOO, as hum may be introduced into the sound system. Place the appropriate self- adhering labels (provided) on the respective MICROPHONES switches to identify the input source. 3.6 EXPD (Expanded) Microphone Input Connections This is a phono-jack bridging input for the Rauland Model PRO 204 Microphone Input Expander. Four additional microphones may be added to the system through this microphone input expander. Refer to the in- struction manual provided with the equipment for interconnection details and for operating instructions. 3.7 Auxiliary Source Connections By making different connections,both individual operation and. shared (loop-through) operation can be obtained. Connections for in- dividual operation are made to the phono-jacks on the rear chassis, as shown on the wiring diagram provided at the rear of this instruction manual. Connections for shared auxiliary source operation are made to these same phono-jacks,but only on the Model MCBlOO. Use a shielded cable terminated in phono-plugs to make parallel connections for the loop from the Model MCBlOO to the Model MCAlOO. The occurrence of hum due to ground-loops can be minimized by cutting the cable shield at one end, preferably at the signal source (tuner output, etc.) Place the appropriate self-adhering labels (provided) on the respective OTHER PROGRAM SOURCES switches to identify the input source. 3.8 Remotely Controlled Volume and Program Precedence Connections The following procedure is required only if remotely controlled options are to be field installed. Either or both master control panels may be equipped for remote operation. The Model 47RCA Remote Control Adapter is required to remotely control the volume or select program precedence. This adapter is a plug-in item and is easily installed in the appropriate four-pin socket provided on the circuit board. The socket marked LVl i