Biamp-VRAM-mix-sch 电路图 维修手册.pdf

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1、 VRAM Variable Resource Automixer Operation Manual Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. (503) 641-7287 an affiliate of Rauland Borg Corp. RadioFans.CN 收音机爱 好者资料库 print update September 7, 2005 blank RadioFans.CN 收音机爱 好者资料库 1 VRAM TABLE OF CONTENTS Front Pin 2) Recei

2、ve Data (RxD) input; Pin 3) Transmit Data (TxD) output; Pin 4) Data Terminal Ready (DTR) output; Pin 5) Ground; Pin 6) not used; Pin 7) Request To Send (RTS) output; Pin 8) not used; Pin 9) not used. BiampWin software and a null-modem cable are provided for programming (see Setup on pg. 4). NOTE: Th

3、e Serial Port can also transmit commands received via the Logic Inputs (see Setup on pg. 8). Link Port: This 9-pin Sub-D (female) connector provides a Link Port for RS-232 control of multiple BIAMP products (see RS-232 Control on pg. 14). The Link Port of one device simply connects to the Serial Por

4、t of the next device (and so forth). Link cables are available as an option (Biamp #909-0057-00). NOTE: All but the final device in a system should have the Link Switch pressed in (see below). The Link Port has the following pin assignments (right-to-left Pin 2) Transmit Data (TxD) output; Pin 3) Re

5、ceive Data (RxD) input; Pin 4) not used; Pin 5) Ground; Pin 6) not used; Pin 7) not used; Pin 8) not used; Pin 9) not used. NOTE: The Link Port will also transmit commands received via the Logic Inputs (see Setup on pg. 8). Link Switch: The Link Switch is used when connecting multiple devices in a L

6、ink Port to Serial Port configuration (see Link Port above). From the factory, the Link Switch is released (out). When connecting multiple devices, the Link Switch must be depressed (in) on all devices except the final device in the system (the device with no Link Port connection). 3 FRONT Pin 9) Gr

7、ound. pin #1 = Logic Input 1 pin #2 = Logic Input 2 pin #3 = Logic Input 3 pin #4 = Logic Input 4 pin #5 = Logic Input 5 pin #6 = Logic Input 6 pin #7 = Logic Input 7 pin #8 = Logic Input 8 pin #9 = ground logic inputs 12345 6789 When nothing is connected to a Logic Input, an internal pull-up resist

8、or keeps it at a high idle state (+5.0 VDC). The Logic Input is activated when its input goes low (less than +0.8 VDC), and is de-activated when its input goes high (greater than +2.4 VDC). A Logic Input is controlled in one of three ways: 1) Use an NPN style open-collector logic output from an exte

9、rnal device (such as another BIAMP product) to short the Logic Input to ground. 2) Use a switch, relay, or other contact-closure (such as from a third-party controller) to short the Logic Input to ground. 3) Use an active TTL output driver circuit (such as from a third-party controller) to actively

10、drive the Logic Input to a high or low state. 11 LOGIC INPUTS Multiple contact-closures or open-collector logic outputs may be wired in parallel to a single Logic Input (see diagram below). Logic Outputs and contact-closures should be rated for at least 5 Volts / 1mA operation. Low-current / dry-con

11、tact closures are recommended for reliability. Active output driver circuits should not exceed a signal range of 05 Volts DC, and should have a minimum pulse width of 100 milli-seconds. Logic Input impedances are approximately 10k ohms. multiple switches to single Logic Input 12 LOGIC OUTPUTS The VR

12、AM provides eight logic outputs on a rear panel 9-pin Subminiature D (male) connector. Logic Outputs can be used to control external switching circuits (such as relays) for speakers, cameras, indicators, etc. The VRAM Logic Outputs are most often used, in conjunction with external relays, to turn of

13、f specific speakers when nearby microphones are active (reducing feedback problems). For example, if a speaker is located directly above microphone #1, the Logic Output for Channel 1 of the VRAM can be used to turn off that speaker relay when microphone #1 is active (see diagram on next page). The L

14、ogic Outputs can also be combined (wired in parallel) to control a single circuit. For example, a speaker relay could be turned off when either microphone #1 or microphone #2 is active. In addition to speaker relays, the VRAM Logic Outputs may be used to control external indicator lights (see diagra

15、m on next page). Another common application for Logic Outputs is to control video cameras. Different cameras could be activated depending upon which microphone (or group of microphones) is currently active. Cameras can be selected (using a video switcher such as a VSX41) and/or camera presets may be

16、 triggered (using a pan/tilt/zoom camera system). The VRAM Logic Outputs may also be used in conjunction with the VRAM Logic Inputs to perform such functions as automatic priority, which allows a microphone (or group of microphones) to be muted whenever specific priority microphones are active (see

17、diagram on next page). The Logic Output for the priority microphone is wired to a Logic Input which is defined to mute the other microphones (see Setup on pg. 8). A similar approach is useful for page-over-music applications. However, in this case the Logic Outputs from multiple paging microphones a

18、re wired to a Logic Input which is defined to mute the music channel. Multi-level priority schemes are also possible, but require the use of multiple Logic Inputs and a diode matrix. These priority applications require that Logic Inputs do not follow Designated Mic On / Last Mic Hold (see Setup on p

19、g. 6). Of course, manual muting of microphones via external switches is also possible (see Logic Inputs on pg. 10). The VRAM Logic Outputs are open collector outputs. Each Logic Output is an NPN transistor with the collector being the output and the emitter being ground (see diagram on next page). W

20、hen a Logic Output is turned on, the transistor provides a path for DC current to flow. The Logic Outputs do not provide any voltage or current. They act only as switches (with a common ground return). To activate external relays, an external power supply must be used (see diagram on next page). The

21、 Logic Output transistors are rated up to a maximum of 24 VDC and 50 mA per output (24 volt relay coils maximum). However, +12 Volts DC is sufficient power for most applications. When using the Logic Outputs to control relays, protection diodes must be used to suppress high voltage transients that a

22、re generated when the relays turn off (see diagram on next page). Any of the 1N4004 family of diodes (1N4001, 1N4002, 1N4003, 1N4004, 1N4005, 1N4006, 1N4007, or equivalent) will provide proper protection. When a Logic Output goes on, the associated relay may be wired to perform on, off, or A/B switc

23、hing functions. To use logic on to turn on (or activate) a device, wire across the normally open relay contacts, in series with the device (or control voltage source). To use logic on to select between A or B signals (inputs or outputs), wire one signal to the normally closed relay terminal and the

24、other signal to the normally open relay terminal, with the common relay terminal providing the feed (input or output). logic outpin number channel 1 channel 2 channel 3 channel 4 channel 5 pin #1 pin #2 pin #3 pin #4 pin #5 pin #6 pin #7 pin #8 pin #9 channel 6 channel 7 channel 8 ground9-pin cable-

25、end 5 9 8 7 6 1 2 3 4 logic outputs 12345 6789 13 LOGIC OUTPUTS Logic/Relay circuit +12 Volts DC Power Supply + Logic Output #1 1N4004 Diode Contacts Coil common normally closed normally open VRAM Pin #1 Pin #9 12V Relay Logic Outputs controlling indicators VRAM+12 Volts DC Power Supply + Logic Outp

26、ut #1 Pin #1 Pin #9 LED Indicator Panel 1.2k ohms Channel 1 automatic priority over Channels 28 logic inputslogic outputs 1 9 1 9 ground 14 RS-232 CONTROL The VRAM has an RS-232 Serial Port, which allows it to be controlled by a computer (see Front or if the product has been altered, subjected to da

27、mage, abuse or rental usage, repaired by any person not authorized by BIAMP Systems to make repairs; or installed in any manner that does not comply with BIAMP Systems recommendations. 4. Electro-mechanical fans, electrolytic capacitors, and normal wear and tear of items such as paint, knobs, handle

28、s, and covers are not covered under this warranty. 5. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. BIAMP SYSTEMS DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 6.

29、The remedies set forth herein shall be the purchasers sole and exclusive remedies with respect to any defective product. 7. No agent, employee, distributor or dealer of Biamp Systems is authorized to modify this warranty or to make additional warranties on behalf of Biamp Systems. statements, repres

30、entations or warranties made by any dealer do not constitute warranties by Biamp Systems. Biamp Systems shall not be responsible or liable for any statement, representation or warranty made by any dealer or other person. 8. No action for breach of this warranty may be commenced more than one year af

31、ter the expiration of this warranty. 9. BIAMP SYSTEMS SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS OR LOSS OF USE ARISING OUT OF THE PURCHASE, SALE, OR USE OF THE PRODUCTS, EVEN IF BIAMP SYSTEMS WAS ADVISED OF THE POSSIBILITY OF SUCH DAMAGES

32、. Biamp Systems 10074 S.W. Arctic Drive Beaverton, Oregon 97005 (503) 641-7287 585.0140.00 TM ? ?. ? ? ? ? ? ? ? ADVANTAGE VRAM Variable Resource Automixer RS-232 Control Manual (Basic Commands) 1/12/2000 Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. (503) 641-7287 An affili

33、ate of Rauland-Borg Corporation RS-232 Control Manual 1 Introduction The purpose of this manual is to assist third-party programmers in successfully writing code to control day-to-day operations of the Advantage VRAM and VRAMeq. If you do not find a command that you are looking for, please contact B

34、iamp Systems at 1-800-826-1457 and ask for Technical Support. Using this manual To use this manual, simply select the type of command you are looking for, located in the tables that make up the following pages, then look at the corresponding command string. In each case you will need to insert the p

35、roper characters in the string to complete the Command String. Example: in the string 1?01aa80dd) which is an increase fader string you will need to provide psuedohex character for the aa and dd parameters. The following table explains the characters you will need to define: CharactersDefinition aaA

36、ddress for Main and Aux Faders ppPreset Number eeButton Number ssVolume Level ddDevice Number RS-232 Control Manual 2 Command Command StringResponse Comments Volume Up 1?01aa80dd)NoneDefine aa and dd parameters Volume Down 0000aa80dd)NoneDefine aa and dd parameters Mute 008000aa80dd(NoneDefine aa an

37、d dd parameters Unmute 800000aa80dd(NoneDefine aa and dd parameters Recall Preset pp80dd”NoneDefine pp and dd parameters Button Action ee80ddChannel 8 Main Feed36 Channel 3 Main Feed2Aux 1 Level Aux Feed39 Channel 4 Aux feed2?Aux 2 level Main Feed3: Channel 5 Main Feed30Aux 2 Level Aux feed3; Channe

38、l 5 Aux Feed31Main Out Level (Master)3 Channel 6 Main Feed32Aux Out Level (Master)3= Table of Main and Aux Faders for aa parameter pp = Preset Number PresetValuePresetValue Preset #101Preset #909 Preset #202Preset #100: Preset #303Preset #110; Preset #404Preset #120 Preset #707Preset #150? Preset #8

39、08Preset #1610 Table of presets for pp parameter RS-232 Control Manual 3 ee = Button Number Button #ValueButton #Value Button#101Button # 2115 Button #202Button #2216 Button #303Button #2317 Button #404Button #2418 Button #505Button #2519 Button #606Button #261: Button #707Button #271; Button #808Bu

40、tton #281 Button #110;Button #311? Button #120Button #3220 Button #130=Button #3321 Button #140-11dB0 +4dB1=-12dB0= +3dB1-13dB0 +2dB1;-14dB0; +1dB1:-15dB0: 0dB19-16dB09 -1dB18-17dB08 -2dB17-18dB07 -3dB16-20dB06 -4dB15-22dB05 -5dB14-24dB04 -6dB13-30dB03 -7dB12-36dB02 -8dB11-42dB01 -9dB10-60dB00 Table

41、 of Fader Levels for ss perameter RS-232 Control Manual 4 dd = Device Number DeviceValueDeviceValueDeviceValueDeviceValue Device #000Device #1610Device #3220Device #4830 Device #101Device #1711Device #3321Device #4931 Device #202Device #1812Device #3422Device #5032 Device #303Device #1913Device #352

42、3Device #5133 Device #404Device #2014Device #3624Device #5234 Device #505Device #2115Device #3725Device #5335 Device #606Device #2216Device #3826Device #5436 Device #707Device #2317Device #3927Device #5537 Device #808Device #2418Device #4028Device #5638 Device #909Device #2519Device #4129Device #573

43、9 Device #100:Device #261:Device #422:Device #583: Device #110;Device #271;Device #432;Device #593; Device #120Device #281Device #442Device #603Device #301Device #462Device #623 Device #150?Device #311?Device #472?Device #633? Table of device numbers for dd perameter Serial Control of the Advantage

44、VRAM _ Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. (503) 641-7287 an affiliate of Rauland-Borg Corp. Introduction This document contains information for the serial control of the Advantage VRAM (Variable Resource Auto Mixer) and the Advantage VRAMeq, (Variable Resource Aut

45、o Mixer with equalizer). Specifically, this document tries to inform those looking to write their own software controls for the Advantage VRAM. It is assumed that the reader has some familiarity with standard programming practices, binary and hexadecimal numbers, the ASCII character set, asynchronou

46、s serial data connections, and RS-232 interfaces. Decimal, Binary, and Pseudo-hex Numbers This document uses three different numerical notations. The first, the most common, is the decimal notation. Whenever it is used, a “d” will appear after the number. 8 Bit binary numbers are the second format u

47、sed in this paper. These numbers will be followed by “b” after their usage. If a specific bit is being referred to, the numbers will be preceded by the word “bit.” To transmit an 8 bit binary number to the Advantage VRAM, hexadecimal notation is used. Hexadecimal numbers are arrived at by splitting

48、the number into two halves. One half consists of the first four binary digits (most significant nibble) while the other consists of the last four binary digits (least significant nibble). 2 nibbles form a byte, which takes on a decimal value of 0 to 255. Each half is then assigned a hexadecimal value. Since the binary values range from 0 to 15, usually values from 10 to 15 are given the alphabetic letters