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Installing the VP-727A Audio Switcher on a Rack 

 

5  Installing the VP-727A Audio Switcher on a Rack 

This section describes what to do before installing in a rack and how to rack 

mount. 

Before Installing in a Rack 

 

How to Rack Mount 

Before installing in a rack, be sure that the environment is 

within the recommended range: 

Operating temperature range  +5º to +45º C (41º to 113º F) 
Operating humidity range 

10 to 90% RHL, non-condensing 

Storage temperature range 

-20º to +70º C (-4º to 158º F) 

Storage humidity range 

5 to 95% RHL, non-condensing 

CAUTION

!! 

 

When installing on a 19" rack, avoid hazards by taking 

care that: 

1.  It is located within the recommended environmental 

conditions, as the operating ambient temperature of a 

closed or multi unit rack assembly may exceed the 

room ambient temperature. 

2.   Once rack mounted, enough air will still flow around 

the machine. 

3.   The machine is placed straight in the correct 

horizontal position. 

4.   You do not overload the circuit(s). When connecting 

the machine to the supply circuit, overloading the 

circuits might have a detrimental effect on overcurrent 

protection and supply wiring. Refer to the appropriate 

nameplate ratings for information. For example, for 

fuse replacement, see the value printed on the 

product label. 

5.   The machine is earthed (grounded) in a reliable way 

and is connected only to an electricity socket with 

grounding. Pay particular attention to situations where 

electricity is supplied indirectly (when the power cord 

is not plugged directly into the socket in the wall), for 

example, when using an extension cable or a power 

strip, and that you use only the power cord that is 

supplied with the machine. 

 

To rack-mount a machine: 

1.  Attach both ear brackets to the 

machine. To do so, remove the 

screws from each side of the 

machine (3 on each side), and 

replace those screws through the 

ear brackets. 

 

 

2.  Place the ears of the machine 

against the rack rails, and insert the 

proper screws (not provided) 

through each of the four holes in the 

rack ears. 

Note that: 

 

In some models, the front panel 

may feature built-in rack ears 

  Detachable rack ears can be 

removed for desktop use 

  Always mount the machine in the 

rack before you attach any cables 

or connect the machine to the 

power  

  If you are using a Kramer rack 

adapter kit (for a machine that is not 

19"), see the Rack Adapters user 

manual for installation instructions 

(you can download it at: 

http://www.kramerelectronics.com) 

 

 

 

 

 

 

 

 

 

Содержание VP-727A

Страница 1: ...Kramer Electronics Ltd USER MANUAL Model VP 727A Audio Switcher...

Страница 2: ...PC to the RS 232 Port 16 7 3 Upgrading Firmware 17 8 Technical Specifications 21 9 Kramer VP 727A Protocol Ver 3 21 22 Figures Figure 1 VP 727A Audio Switcher 4 Figure 2 VP 727A Audio Switcher Unders...

Страница 3: ...Contents ii Tables Table 1 VP 727A Audio Switcher Features 5 Table 2 VP 727A Audio Switcher Underside Features 6 Table 3 Technical Specifications of the VP 727A Audio Switcher 21 Table 4 Instruction...

Страница 4: ...r cord2 Null modem adapter This user manual 2 Getting Started We recommend that you Unpack the equipment carefully and save the original box and packaging materials for possible future shipment Review...

Страница 5: ...KRAMER SIMPLE CREATIVE TECHNOLOGY Getting Started 2...

Страница 6: ...l lockout A TAKE button for executing preview to program switching with transition effects An audio follow video button when operating in conjunction with the VP 727xl or the VP 727 Fade to mute audio...

Страница 7: ...KRAMER SIMPLE CREATIVE TECHNOLOGY Your VP 727A Audio Switcher 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Figure 1 VP 727A Audio Switcher...

Страница 8: ...FT Connect to the unbalanced stereo audio source from 1 to 8 20 LEFT 21 PROGRAM RCA Connectors RIGHT Connect to an unbalanced stereo audio program acceptor 22 S PDIF RCA Connector Connect to a digital...

Страница 9: ...27A Audio Switcher Underside Table 2 VP 727A Audio Switcher Underside Features Feature Function 1 PROGRAM Slide Switch Slide to ON to upgrade to the latest Kramer firmware see section 7 or to the righ...

Страница 10: ...wiring Refer to the appropriate nameplate ratings for information For example for fuse replacement see the value printed on the product label 5 The machine is earthed grounded in a reliable way and is...

Страница 11: ...connector on the VP 727A to the AUDIO CONTROL terminal block connector of the Kramer VP 727xl 4 On the VP 727A set DIP 8 to ON6 Make sure that all the other dipswitches are set to OFF 5 Connect the RS...

Страница 12: ...Configuring the VP 727A Audio Switcher 9 Figure 3 Connecting the VP 727A with a VP 727xl Machine...

Страница 13: ...on the VP 727A unit to the Null modem adapter and connect the Null modem adapter with a 9 wire flat cable to the RS 232 9 pin D sub port on your PC To connect a PC to a VP 727A unit without using a Nu...

Страница 14: ...be connected to the VP 727xl see Figure 5 or the VP 727 see Figure 6 VP 727T via the VP 727xl or the VP 727 using the RS 485 ports The example in Figure 5 illustrates how to connect two VP 727A machin...

Страница 15: ...A Audio Switcher 12 The example in Figure 6 illustrates how to connect a VP 727A and a VP 727 machine to a VP 727T controller On the VP 727A set DIP 7 to ON The other dipswitches are set to OFF Figure...

Страница 16: ...n the AUDIO CONTROL rear panel port of the VP 727xl unit Connect the B PIN on the RS 485 rear panel port of the VP 727A to the B PIN on the AUDIO CONTROL rear panel port of the VP 727xl unit If shield...

Страница 17: ...witcher Control Panel via the RS 485 control port as illustrated in the example in Figure 8 do the following 1 Connect the VP 727A to the VP 727 as follows Connect the A PIN on the RS 485 rear panel p...

Страница 18: ...nit Connect the B PIN on the RS 485 rear panel port of the VP 727 to the B PIN on the RS 485 rear panel port of the VP 727T unit If shielded twisted pair cable is used the shield may be connected to t...

Страница 19: ...ection 2 Extract the file FLIP_VP727A zip to a folder for example C Program Files Kramer Flash 3 Create a shortcut on your desktop to the file FLIP EXE 7 2 Connecting the PC to the RS 232 Port Before...

Страница 20: ...screen appears as follows Figure 9 Splash Screen 2 After a few seconds the Splash screen is replaced by the Atmel Flip window Figure 10 Atmel Flip Window 3 Press the keyboard shortcut key F2 or select...

Страница 21: ...ory Upgrade 18 Figure 11 Device Selection Window 4 Click the button next to the name of the device and select from the list AT89C51RD2 AT89C51RD2 T89C51RD2 Figure 12 Selecting the Device Window 5 Clic...

Страница 22: ...ication RS232 command from the Settings menu or press the keys Alt SCR The RS232 window appears Change the COM port according to the configuration of your computer and select the 9600 baud rate Figure...

Страница 23: ...becomes colored green 1 When the operation is completed all 4 check boxes will be colored green and the status bar message Memory Verify Pass appears 2 VP727A hex Figure 16 Atmel Flip Window Operation...

Страница 24: ...DTH 3dB 22kHz S N RATIO 85dB CROSSTALK 1kHz all hostile Program 88dB Preview 92dB Balanced 88dB Phones Preview 82dB Phones Program 80dB CONTROLS Preview level 72dB to 62dB in and out Program level 73d...

Страница 25: ...T 00 80 80 81 See NOTE 1 INPUT 1 PROGRAM OUT 02 81 81 81 INPUT 2 PROGRAM OUT 02 82 81 81 INPUT 3 PROGRAM OUT 02 83 81 81 Select INPUT 4 PROGRAM OUT 02 84 81 81 Input INPUT 5 PROGRAM OUT 02 85 81 81 fo...

Страница 26: ...INPUT 1 LEVEL 19 81 80 81 READ PROGRAM INPUT 2 LEVEL 19 82 80 81 READ PROGRAM INPUT 3 LEVEL 19 83 80 81 READ PROGRAM INPUT 4 LEVEL 19 84 80 81 READ PROGRAM INPUT 5 LEVEL 19 85 80 81 READ PROGRAM INPUT...

Страница 27: ...RAM OUTPUT LEVEL 16 A1 80 Value 81 PREVIEW OUTPUT LEVEL 16 A2 80 Value 81 HEADPHONE OUTPUT LEVEL 16 A3 80 Value 81 See NOTE 1 READ PROGRAM OUTPUT LEVEL 19 A1 80 81 READ PREVIEW OUTPUT LEVEL 19 A2 80 8...

Страница 28: ...NOTE 3 AFV 08 80 80 81 BREAKAWAY 08 80 81 81 See NOTE 1 READ AFV BREAKAWAY STATUS 0B 80 80 81 See NOTE 3 FADE ON 20 80 81 81 See NOTE 1 FADE OFF 20 80 80 81 See NOTE 1 READ FADE STATUS 21 80 80 81 See...

Страница 29: ...y 0x42 0x81 0x81 0x81 NOTE 2 In the case of an error the reply code will be 1st byte 0x50 2nd 3rd and 4th byte don t care NOTE 3 The reply to these READ commands is 1st byte 0x40 1st byte sent 2nd byt...

Страница 30: ...byte 0x7d 2nd byte 0x80 the version number prior to decimal point 3rd byte 0x80 the version number following the decimal point 4th byte 0x81 For example for version 3 5 the reply would be 0x7d 0x83 0...

Страница 31: ...ghtning orotheractsofnature ii Product modification orfailure to followinstructions supplied with the product iii Repairorattemptedrepairby anyonenot authorized byKramer iv Anyshipment oftheproduct cl...

Страница 32: ...or the latest information on our products and a list of Kramer distributors visit our Web site www kramerelectronics com where updates to this user manual may be found We welcome your questions commen...

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