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ADPRO VM22A, Issue 6

14

5.8

Cascading Multiple VM22A Units

Figures 6 and 7 show how up to ten (10) VM22A units can be cascaded to control
up to 100 channels of audio inputs and outputs at Fast Scan Transmitters.

Figure 6 – Multiple VM22A connection with internal speaker amplifier

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Содержание VM22A

Страница 1: ... 352 VM22A Audio Switcher installation user manual Part No 200791 06 EXbX BhbcT b ...

Страница 2: ... Options All conforms to the following Product Specifications Safety IEC 950 EN 60950 AS3260 EMC FCC Part 15 Class A Unintentional Radiators EN 55022 1998 CISPR 22 1997 Class A AS NZS 3548 1995 Amendment 2 1997 EN 50082 1 1997 Immunity Supplementary Information The products listed comply with the requirements of the Low Voltage Directive 73 23 EEC where applicable and the EMC Directive 89 336 EEC ...

Страница 3: ...Introduction 3 5 0 Installation 4 5 1 Typical VM22A Application 4 5 2 Unpacking the VM22A 5 5 3 VM22A Links 6 5 4 VM22A Switches 7 5 5 VM22A Connections 9 5 6 Installation Procedure 10 5 7 Manual Volume Setup 13 5 8 Cascading Multiple VM22A Units 14 5 9 Using an External Amplifier 17 6 0 Specifications 17 7 0 BCD Codes Fast Scan Operation 20 8 0 Serial Protocol 21 ...

Страница 4: ...will at the option of Vision Fire Security either be new equivalent to new or reconditioned All replaced component parts and ADPRO Products become the property of Vision Fire Security Vision Fire Security does not warrant guarantee or make any representations either expressly or implied regarding the current or future use or the results of the use of the ADPRO Product with respect to its correctne...

Страница 5: ...nt of the fitness or suitability of the ADPRO Product for your purpose You acknowledge that you have not relied on any oral or written information representation or advice given by or on behalf of Vision Fire Security or its representatives Vision Fire Security has no liability to you or any person for incidental or consequential loss expense or damages including without limitation loss of busines...

Страница 6: ...tures software or products not approved by Vision Fire Security in writing or where the ADPRO Product has been serviced by persons not authorised by Vision Fire Security in writing to service the ADPRO Product Lightning or Related Voltage Surges ADPRO equipment malfunction caused by lightning or related voltage surges is specifically exempted from the warranty conditions of Vision Fire Security Pt...

Страница 7: ... fitted with software version 2 03 or later The VM22A may be set to operate as an ADPRO VM22 for connection to all Fast Scan units prior to Series III with version 2 03 software and provides all the features of the ADPRO VM22A except the ability to cascade units 5 0 Installation 5 1 Typical VM22A Application Refer to Figure 1 for the typical VM22A application Figure 1 Typical application of VM22A ...

Страница 8: ... items 1 VM22A Audio Switcher 1 DC power plug 2 5 mm 2 pole 1 Expansion I O cable 1 metre 2 Screw terminal plug 10 way 2 Screw terminal plug 15 way 4 Screw terminal plug 2 way 1 Screwdriver 2 4mm 4 Stick on rubber feet 1 12V DC Plug Pack Australia and US only Figure 2 Front and Rear panels of the VM22A AUDIO INPUTS 1 5 AUDIO INPUTS 6 10 EXPANSION I O EXPANSION I O LOOP AUDIO OUTPUTS 1 5 AUXILIARY ...

Страница 9: ... X6 sets the unit to operate as a VM22 When operating in VM22 mode cascading VM22A units is not possible thus restricting control to 10 channels X6 LINK POSITION SETTING Pin 1 to Pin 2 VM22 Compatible Pin 2 to Pin 3 Normal Operation VM22A Link X3 Audio Output Link X3 in conjunction with adjacent switch controls whether the unit operates with audio from each channel routed to 10 individual speaker ...

Страница 10: ...V rms SW2 OFF Line input levels 10mV 400mV rms ON Broadcast In Audio input routed to Channel 1 independent of FastVu channel selection SW3 OFF Normal FastVu selects output channel ON Broadcast Out Audio output routed to Channel 1 independent of Fast Scan channel selection SW4 OFF Normal FastVu selects input channel SW1 ON Manual Level Control When Switch 1 is in the OFF position individual channel...

Страница 11: ...ophone is routed to ALL channels of the VM22A This action is independent of the channel camera currently selected by the FastVu SW3 OFF Normal Inputs When the VM22A is connected to multiple microphones Switch 4 must be in the OFF position Audio is passed from the microphone line input associated with channel camera that is currently selected by the FastVu SW4 ON Broadcast Out Switch 4 configures t...

Страница 12: ...tput 3 MSB 9 Ground Ground 10 Ground Ground 11 General alarm relay normally closed Do not connect 12 General alarm relay normally open Do not connect 13 Receiver Press to Talk PTT input Do not connect 14 Binary output 0 LSB or Serial Clock Binary output 0 LSB or Serial Clock 15 Binary output 2 or Serial Strobe Binary output 2 or Serial Strobe VM22 mode only Table 1 Expansion I O and Expansion I O ...

Страница 13: ...he VM22A Audio Switcher within one metre of the Fast Scan Receiver 3 Connect the supplied 15 way ribbon cable from the Fast Scan Expansion I O port to the VM22A s Expansion I O port 4 Connect the speaker or audio amplifier to Audio Output 1 located on Audio Outputs 1 5 connector Pins 1 and 2 5 Connect the microphone to Audio Input 1 located on Audio Inputs 1 5 connector Pins 1 2 and 3 shield 6 Dep...

Страница 14: ... 10 13 1 2 3 4 5 6 7 1 2 1 2 1 2 1 2 1 2 1 2 3 4 7 10 13 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 7 9 6 7 8 9 10 1 2 3 4 5 7 9 6 7 8 9 10 General Alarm Relay Optional N C Access Secure Shield 12V 0V Dynamic Microphone or Line Input Speaker Delay Connect Press to Talk N O Com Amplifier OUT IN Rear panel vm22a connections 2 cdr Note Refer to Section 6 Specifications Output Switcher for external power amplifier...

Страница 15: ...F ON Listen to a single microphone otherwise OFF multiple microphones SW4 ON or OFF ON Broadcast to a single speaker otherwise OFF multiple speakers 3 Connect the supplied 15 way ribbon cable from the FastVu Audio Switch Fast Scan Expansion I O port to the VM22A Expansion I O port 4 Either connect the speaker to Audio Output 1 if broadcasting to a site irrespective of the camera being viewed or mu...

Страница 16: ...er to the FastVu s User Manual for details 3 Display the required channel 4 While one person speaks into the microphone at the Receiver adjust the respective output level potentiometer for the particular channel on the VM22A at the transmitter end to a suitable level 5 Repeat for all the Transmitter speakers 6 Repeat the above with audio enabled from the Transmitter to the Receiver substituting th...

Страница 17: ... Multiple VM22A Units Figures 6 and 7 show how up to ten 10 VM22A units can be cascaded to control up to 100 channels of audio inputs and outputs at Fast Scan Transmitters Figure 6 Multiple VM22A connection with internal speaker amplifier ...

Страница 18: ... VM22A units is via the address switch located on the front panel The address assigned to a VM22A will determine which ten channel block the unit controls The following table shows the address allocations Figure 7 Multiple VM22A connection with external power amplifier ...

Страница 19: ...6 61 70 7 71 80 8 81 90 9 91 100 To cascade multiple VM22A units a daisychain cable is required between each unit connected from the Expansion Loop I O connector on the first unit to the Expansion I O connector on the following unit refer to Figure 8 Figure 8 Cascading multiple VM22A s connected to ADPRO FastVu ...

Страница 20: ...er refer to Figure 7 6 0 Specifications The ADPRO VM22A Audio Switcher provides for direct connection of up to 10 microphones and 10 loudspeakers to ADPRO FastVu Digital Video Audio Transmission System or ADPRO Fast Scan Video Transmission systems Up to 20 channels for ADPRO FastVu or 100 channels for ADPRO Fast Scan are available when multiple VM22A units are cascaded The VM22A can be configured ...

Страница 21: ... the mic line input levels are controlled via individual Input Level potentiometers on the front panel of the VM22A Audio Output 10 audio outputs Unbalanced Impedance 00 ohms Nominal Voltage 315mV RMS Individual volume potentiometers on the front panel provide level adjustment 2x 10 way screw terminal connections Speaker Amplifier A maximum output voltage swing of 8 V peak to peak Interface into a...

Страница 22: ...of audio input levels Green lit when sufficient input level is attained P9 506 Red lit when excessive input level is attained P9 506 Use the Input Level potentiometers to set the audio input level Power Supply 12 Volts DC 3 5 Watts max Requirements Maximum voltage range including ripple voltage 10 5 Volts DC to 15 V DC 2 way screw terminal connection WARNING The VM22A must only be powered from one...

Страница 23: ... Conditions Operating temperature range 0 o C 50 o C 32 o F 122 o F Humidity less than 90 non condensing Warranty Twenty four 24 months 7 0 BCD Codes Fast Scan Operation The four BCD address lines on the Expansion I O Interface are used to select the active channel on the VM22A when VM22 mode is selected The following table shows the BCD code and the corresponding channel allocation BCD CODE Bit 3...

Страница 24: ... the BCD lines SERIAL PROTOCOL Expansion I O Pin Signal Line Function 14 BCD 0 Serial Clock 7 BCD 1 Serial Data 15 BCD 2 Serial Strobe Table 4 Relationship of the Serial Signals to the BCD lines Figure 10 Serial Protocol Timing diagram A3 A2 A1 A0 D3 D2 D1 D0 Clock Data Strobe 0 seconds 0 seconds 15nS data settle t 0 A A is the Unit ID in binary format A is LSB D D is the channel in inverse BCD fo...

Страница 25: ...Toll Free 1800 700 203 The Americas Vision Fire Security 35 Pond Park Road Hingham Massachusetts 02043 USA Telephone 1 781 740 2223 Facsimile 1 781 740 4433 Toll Free 800 229 4434 Europe the Middle East Vision Fire Security Vision House Focus 31 Mark Road Hemel Hempstead Herts HP2 7BW UK Telephone 44 0 1442 242 330 Facsimile 44 0 1442 249 327 Web Site http www adpro com au ...

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