MRD 3187B - User Manual
Page 102 (245)
4.16 CA Decryption – Option 8721
General Information
Install Location: Factory Installed Option (Not Field Upgradeable)
I/O: Two external slots in the front of the unit. The transport stream is input and
output through the various other option cards
Description: The MRD 3187B can be configured with this option to be able to
decrypt a Conditional Access transport stream. In Config 1 the dual CAM
functionality can be used to decrypt multiple services to send out ASI, essentially
looping the stream through the MRD 3187B for decryption.
This option also provides BISS decryption.
Note: The dual CAM functionality is only available in a Config 1 when the “CAM
Operation Mode” mode is set to “Use Decoded Stream”. In Config 2 each slot
links to its respective RDS.
CAM Decryption Setup
To setup the MRD 3187B to decrypt Conditional Access Streams use the following
steps.
1. Press the button to bring the display
back to the RDS status screen.
2. Press the button to access the RDS 1
Decoder Menu.
Note: For Configuration 2 units, all of the following instructions apply exactly the
same except, use the button to access the RDS 2 Decoder Menu.
3. Use the and buttons to move the
cursor to “CA Systems”, then press the
button to display the CAM status.
4. Press the button again to edit the
CAM settings.
RDS CAM Usage Setting
The PIDs are sent to the CA System whenever it is enabled. When disabled, the
PIDs are not sent to the CA System for decryption.
1. Use the and buttons to move
the cursor to “Descramble”, then press
the button.
2. Use the and buttons to
change the setting (“Enabled” or
“Disabled”), then press the
button to save the selection.
CA Systems RDS1
►Descramble:Enabled
CAM Operation Mode:
Use Decoded PIDs
CA Systems RDS1
Descramble:Enabled
CAM Operation Mode:
Use Decoded PIDs
RDS 1 ←→
Source ID
BISS Decryption
►CA Systems
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