Bogen-SI35A-Operation-Manual 电路图 维修手册.pdf

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1、Power Inter c om Sys tems Models PI35A inspect the shipping container and unit closely for improper handling. I f the unit has been damaged, make an immediate claim to the distributor from whom it was purchased. I f the unit was shipped directly to you, save all shipping materials and notify the car

2、rier immedi- ately and place a claim. Wir ing and Gr ounding Pr ecaut ions The MCP35A master control panel of the PI and SI products operates from a 120V 60 Hz AC source and con- sumes approximately 100 watts. The AC line cord is terminated in a three- prong plug, and should be plugged into an appro

3、priate three- wire grounded outlet. I t is important that the unit be properly grounded. Three- prong pigtail adapters may be used only if the ground lug is properly grounded. Auxiliar y Power Recept acle An 840- watt, three- wire grounded outlet is provided on the rear panel for power auxiliary equ

4、ipment. Equipment connected to this outlet will be grounded only if the MCP35A control panel is properly grounded. Maint enance if not, push it to pop it out. 3. Press and hold the green PRESS- TO- TALK switch and speak into the CONSOLEMI C (upper left corner) . 4. Release the button to listen to th

5、e reply. To adjust the volume, use the green MONI TOR/ LI STEN knob. Dist r ibut ing Audio t o Rooms To send audio to rooms continuously, do the following: 1. Set the switches for all the rooms that are to receive the audio into the “A” (up) position. 2. Select the source of the audio by pushing in

6、one or more of the PROGRAMDI STRI BUTI ON buttons (MI C1, MI C 2, or AUX) . To turn off the audio source, push the button again so that it pops out. I f more than one audio source is selected, the audio from each source will be mixed together. Not e:Make sure that the MI C 1 button is turned off (po

7、pped out) before making an intercom announce- ment. Otherwise the intercom announcement will not only be heard in the desired stations set to “C” but also in all the rooms set to “A”. 3. To disconnect the audio from a room, simply set the room switch to the “O” (center) position. Adjust ing Pr ogr a

8、m Level t o Rooms While the audio is playing, observe the three PROGRAMTALKLEVEL lights (N, P, and O) . The green “N” light should be lit continuously with the yellow “P” light turning on occasionally. This indicates that the audio level to the rooms is good. I f the red “O” light turns on, it indic

9、ates that the volume level going to the room speakers is set too high. Use the orange program knob to turn the volume down to an acceptable level. To Make an All- Rooms Announcement To distribute audio to all rooms that have room selector switches in “A” or “O”positions: 1. Select source using MI C

10、1, MI C2, or AUXbutton. 2. Press the ALLROOMSbutton. To Make an Emer gency Announcement To make an emergency page announcement to all rooms, regardless of switch settings or program source selec- tions, do the following: 1. Press the EMERGENCYPAGE push- button and speak into the CONSOLEMI C. 2. To r

11、elease the emergency page, push the emergency page button again. 8 Basic Syst em Hook- Up 4- Wir e Speaker Connect ions t o t he SBA225 4- wire speaker connections (3- conductor + shield) is recommended for all new installations. The figure below shows the connection to the back of the SBA225 when u

12、sing a 4- wire system. Not e:You must use Bogen connectors for this connection. There are different connectors available for different wire gauges. Refer to the list below to determine the correct connector model number. Connect or Kit Number s: Use Bogen Connector Kit Model No. 2518 for 18 Ga. Wire

13、 Use Bogen Connector Kit Model No. 2520 for 20 Ga. Wire Use Bogen Connector Kit Model No. 2522 for 22 Ga. Wire Not e:For speaker- only applications, do not connect the shield to ground at the speaker end (leave it floating) . 9 Call- I n Swit ches Two call- in switches, CA10A and CA11A, are recommen

14、ded for use with the SI and PI . The CA10A is a momen- tary push switch that has circuitry to light the annunciator light on the SBA225 room selector panel. The CA11A has the same capability as the CA10A and includes a privacy lock- out position that inhibits the MCP35A control panel from listening

15、through the room speaker (it does not interfere with the ability to call the station from the MCP35A) . The wiring of the call switches is shown below. Voice Call- I n Feat ur e Voice call- in is not recommended for new installations. Pre- existing intercom systems may already have call- in switches

16、 that are wired in parallel with all the other call- in switches. I n this instance, the MCP35A voice call- in fea- ture can be used. With this style of operation a room must press the call- in switch and speak into the room speak- er. The built- in speaker in the MCP35A will monitor this call so th

17、at people near the control panel will hear it. Typically the caller will say what room the call is being made from. The room selector switch for that room can then be set for a two- way intercom conversation. Voice Call- I n Wir ing Contact the Bogen Application Engineering Department for informatio

18、n regarding this type of application. CA10A Wir ing Schemat ic CA1 1A Wir ing Schemat ic (wit h Pr ivacy) 10 Speaker s and Speaker Wir ing The MCP35A control panel of the SI and PI products is designed to use 25- volt distributed speakers. These speakers have line- matching transformers with various

19、 power level taps. 8- ohm speakers or speakers without line- matching transformers cannot be used with the SI and PI products. Distributed speakers can be tapped at various power levels and this is determined by which wire from the speakers transformer is used for connection. The user must determine

20、 which power tap gives acceptable volume in a given location. However, it is best to tap the speakers at the lowest acceptable power tap in order to ensure that enough speakers can be connected to the system without overloading the system amplifier. The chart below shows the wire colors and power ta

21、ps for the T725 transformers. Caut ion: Do not attempt to connect a 25V speaker directly to the MCP35A, using GND as one of the connecting points. This could seriously damage the MCP35A because the unit uses a balanced output when connected to the speakers lines. The MCP35A control panel of the PI a

22、nd SI contains an internal amplifier with 35W power handling capability. Therefore, the combined power of all the system speakers cannot exceed 35W. To determine the required power that the system amplifier must handle, add up all the power taps selected for all the speakers in the system. This is t

23、he total system power requirement. I f the total of the speaker power taps is too high for the system to handle, it may be necessary to tap the speakers at the next lowest setting in order to keep from overloading the amplifier. I n many instances, the required speaker tap setting will be either 1/

24、4 or 1/ 2 watt (you should also factor in 20% additional power loss through wires, transformers, etc. as a safety margin) . The MCP35As 35- watt amplifier should provide sufficient power for most applications. I f the systems power requirements are greater than 35 watts and cannot be lowered, it may

25、 be necessary to use an external booster amp. The booster amp replaces the internal amplifier of the MCP35A. Booster amp connec- tions are described on page 12. Time Tones A tone signal sounds through all speakers when the clock terminal is grounded through a closure from a master clock. Reference c

26、all out #6 on page 5. T725 Leads25V BlackCOM Brown4 Red2 Orange1 Yellow1/ 2 Green1/ 4 Blue1/ 8 Violet Grey White 11 Advanced Hook- Ups Ext er nal Emer gency Mic I t is possible to use a microphone (Model MBS1000A) with a contact closure to make an emergency announce- ment. The TELCO terminal on the

27、back of the MCP35A control panel can be used to remotely trigger an emer- gency page on the system. Whenever the TELCO terminal is shorted to the GND terminal, the MI C 2 input will become active and send audio to all rooms regardless of switch settings. The figure below shows the required wiring. N

28、ot e: Jumper J3 on the MCP35A printed circuit board must be set to the MI C2 position (this is the factory default setting) . See the Special Adjustments section for jumper information. Emer gency Telco Page Emergency pages can be triggered by devices other than a microphone. To use a source other t

29、han a mic, it is necessary to change the setting of a jumper inside the MCP35A control panel. See the Special Adjustments section for more information on the jumper change. Below are emergency telco page hook ups for various types of interfaces. The Bogen model WMT1A can be used to convert the TELCO

30、 PAGE input to a transformer- balanced, 600- ohm input for telephone paging applications. Not e:Jumper J3 on the MCP35A printed circuit board must be set to the TELCO position. See the Special Adjustments section for jumper information. 12 The Bogen model TAMB2 Telephone I nterface Module can be use

31、d to make a remote page through the telephone system. Not e: Jumper J3 on the MCP35A printed circuit board must be set to the TELCO position. See the Special Adjustments section for jumper information. NOPTPR G/SCNC PAGE OUT CONTACT CLOSURES Ext er nal Boost er Amp An external booster amplifier (Bog

32、en Model BPA60) can be connected when the application requires more than 35 watts. Using an external amplifier disconnects the internal 35W amp of the MCP35A. To install, connect a RCA cable from the MCP35A LI NEOUTjack to the Hi- Z input jack on the rear panel of the BPA60 amplifier. Connect anothe

33、r cable from the 25V output terminals of the booster amplifier to a 1/ 4” stereo phono plug wired as shown in the figure below. I nsert this into the jack labeled 25V BALI NPUT on the MCP35A. TWK351 Wir e Conver t er The model TWK351 is an adapter used in instances where there is existing 3- wire (2

34、- conductor + shield) room wiring. The TWK351 cannot be used with the SCR25A module. I f 3- wire operation using the TWK351 wire con- verter is desired, CA10A call switches must be used (CA11A Call- I n switches will not work in this application) . To install the TWK351, simply insert it between the

35、 9- pin connector labeled TOSWI TCHBANK on the rear panel of the MCP35A and the 9- pin control cable on the first SBA225 panel. Only one TWK351 is required per system. S S A G 13 SCR25A Call- I n Module The SCR25A module can be added to allow the annunciator indicators to light from a simple SPST ca

36、ll- in switch (Bogen model CA17) . All call- in switches must go back to the SI or PI on separate lines. I t will not allow annunci- ator illumination from parallel connected call- in switches described in the Voice call- in section. The SCR25A module simply pushes onto the connectors on the back of

37、 the SBA225. The figure below illustrates the connections to the rear of the SCR25A module. Jumper Settings (see screened drawing on the SCR25A board) . 1. Ensure that jumpers J1 - J25 are positioned to the left (toggle position) as shown. 2. Ensure jumper J26 is positioned towards the pin side (Mul

38、ti- Graphic position) of the SCR25A module. CA17 Call- I n Swit ch The CA17 call- in switch is a SPST call- in switch. I t must be used with the SCR25A module in order to light the call annunciators on the SBA225 room selector panel. The wiring of the CA17 is shown in the drawing above. 14 SI 35A Mo

39、del Opt ion Enhancement s The SI 35A has provisions to add up to 2 additional SBA225 switchbanks. Simply remove the blank panels and replace with a switchbank. Make connections as shown in the diagram below. An auxiliary music source, such as the Bogen CDR1 CDPlayer and AM/ FM Receiver or DST1 AM/ F

40、M Digital Tuner can also be added to the SI 35A. I nstall the component in the appropriate rack panel and make audio connections to the MCP35AAUXinput. Use the auxiliary power outlet on the MCP35Ato power the auxiliary equipment. Note: Mounting a radio in the cabinet will limit the number of SBA225

41、panels that can be installed to two because of the physical size of the cabinet. Mounting the music source outside the cabinet will still allow for three SBA225 panels. All components may be rearranged in the cabinet to suit the preferences of the user. CD Player 15 Tuner Special Adjust ment s Gain

42、Adjust ment s Screwdriver- adjustable I NPUT GAI N controls are located on the rear panel for MI C 1, MI C 2, AUX, TEL PAGE, TALK and LI STEN. Set the controls so that signal clipping cannot occur. Proceed as follows: 1. Apply input(s) to the desired channel(s) . 2. Set the corresponding front panel

43、 control(s) to maximum. 3. Adjust the appropriate I nput Gain control (looking at the rear panel, turn clockwise to increase or counterclockwise to decrease gain) so that the red (overload) LED lights; then turn counterclockwise only until the LED is extinguished. War ning: High voltages are present

44、 within the MCP35A. The unit should not be operated without covers in place. I nternal controls are provided to set the level of emergency page volume, privacy tone volume, and time tone vol- ume. These controls are factory set; under normal circumstances, no further adjustment is required. I f adju

45、stment is needed, unplug the MCP35A and remove it from the enclosure. Remove the top cover and make an approxi- mate adjustment. Replace the top cover and plug the unit back in. Test if the new set volume is acceptable. Repeat procedure if necessary. 16 17 I nt er nal Jumper Select ions I nternal ju

46、mpers are provided for phantom power (MI C1/ MI C2) , Telco Page/ MI C 2 input selection, monitor speak- er muting, and privacy tone defeat. War ning: High voltages are present within the MCP35A. The unit should not be operated without covers in place. To change jumpers, unplug the MCP35A and remove

47、 it from the enclosure. Remove the top cover and place the jumper in the desired position. Replace the top cover and plug the unit back in. Phant om Power To enable phantom power for MI C 1, place J1 in the ONposition. To enable phantom power for MI C 2, place J2 in the ONposition Telco Page/ MI C 2

48、 Jumper J3 selects the TELCO PAGE input jack or the MI C 2 input terminals for the telephone page function. Place the jumper in the MI C 2 position when using the MI C 2 terminals for emergency paging applications using a microphone. Place the jumper in the TELCO position when using the TELCO PAGE i

49、nput for paging applications. MI C 1/ Console Mic 1. Locate and loosen the two screws securing the jumper link on the rear chassis terminal strip connecting MI C 1 HI terminal to the CONS MI C terminal. 2. Move the link away from the CONS MI C terminal. 3. Connect a balanced or unbalanced low- impedance microphone to the MI C 1 terminals. Connect the cable shield to the GND terminal. 4. Move the shunt on J4 to the OFF position to disable the monitor speaker muting feature when the MI C 1 push- button is selected. Not e: J1 should be in the OFF position