Alcad MS-551 Tech Note Download Page 2

 

The MS-551 modulators use an 8 pin Mini-Din cable that is available from your local ALCAD 
dealer. The mini DIN connection is located on the front of the modulator. Please look at picture 
below for example. 
 
 
In connecting the audio and video sources, two types of cables are available: 
 

 

CD-003 (cod. 9120098)

 Stereo, with a miniDIN to SCART (EuroConnector) connection. 

 

 

CD-113 (cod. 9120094)

 Stereo, with a miniDIN  to RCA connection. 

 

 

 

1.0 Programming of the Modulator 
 

To program the modulator, place the programming switch in the ON (upward) position which 
can  be  seen  from  picture  below.  When  you  turn  the  switch  in  the  “ON”  position  the 
programming  indicator  will  light  up. While  the  programming  indicator  remains  lit,  the  channel 
processor  is  ready  to  receive  data  from  the  PS  programmer. When  the  modulator  has  been 
programmed,  programming  mode  should  be  deactivated  by  placing  the  switch  in  the  OFF 
position. The programming indicator light will go out. 
 

 

 

Summary of Contents for MS-551

Page 1: ...MODULATOR WHEN PROGRAMMING Programming of Modules Ensure the following prior to programming It is necessary to connect all the modules to the support frame SP 226 code 9120130 for the system to function It is also recommended that you make the earth connection to the building using a cable with a section of at least 4 mm Ensure that you have the Alcad programmer PS 003 with firmware version 4 7 or...

Page 2: ...cod 9120094 Stereo with a miniDIN to RCA connection 1 0 Programming of the Modulator To program the modulator place the programming switch in the ON upward position which can be seen from picture below When you turn the switch in the ON position the programming indicator will light up While the programming indicator remains lit the channel processor is ready to receive data from the PS programmer ...

Page 3: ... as below Table channels frequency Press the arrow down once which will take you to Output Frequency screen Increase decrease the values using the arrows or use the numeric keypad to enter the frequency output that is desired Ensure if you enter the value using the numeric keypad you use the decimal point The Australian Analogue Digital frequency table can be seen on the next page Once you have th...

Page 4: ...AUSTRALIAN DIGITAL ANALOGUE FREQUENCY TABLE The next screen enables the type of Audio output that is to be selected stereo or mono ...

Page 5: ... Video carrier from the modulator Once you have the desired video level set press transmit to ensure setting is sent to module then press the down arrow to go to the next screen below The V A ratio enables 12dB or 16dB ratio settings which is the difference between the Video to Audio carriers Once you have the desired V A ratio set press transmit to ensure setting is sent to module The modulator h...

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