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Item Definition
(Seconds) 0.5 to 300 seconds.
Destination IP #1
Indicates the IP address of the destination receiver. This value can be a valid Singlecast or Multicast IP address (Class A, B, C or D). A value of 0.0.0.0 indicates that no destination receiver address is defined for the corresponding index. If all entries have a value of 0.0.0.0, heartbeats are not sent.
SEM System Configuration — Advanced
This window allows the user to control the encryption algorithm, insertion mode, auto-reboot, loss of PSI detection, Cable Encrypt Copy Protection source, and Cable Encryptor PIM Wildcard parameters.
The Loss of PSI determines when a service that was previously received is no longer on the input stream. For a service to be remultiplexed by the SEM, the input PAT must reference the applicable service number. In addition, the input PMT must be received. The input PAT determines the input PMT PID value.
When Loss of PSI detection is enabled, if either the PAT or the PMT are determined to be missing, the SEM will stop remultiplexing the service. This provides the user with a real time update for each service. The Output Program Status will be updated to reflect any changes to the input stream
(missing/reception of PAT, missing/reception of PMT, and the processing/validation of the PMT).
The Advanced window is illustrated in Figure 4-23 and defined in Table 4-7.
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Figure 4-23 Advanced window
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Table 4-7 Advanced window field definitions
Item Definition
*Encryption Algorithm Controls the current scrambling mode of the SEM ACPs.
1 — DES (DCII, North America)
2 — CSA (DVB Common Scrambling Algorithm) This field is applicable only when the SEM has an ACP module installed and is either externally controlled or the CTE mode is enabled.
Message Insertion Mode Sets the message insertion mode as efficient, singleSection, or twentyByte. The mode designators are:
1. Efficient — messages are inserted as efficiently as possible. Messages that are on the same PID may be in the same MPEG packet. This allows for the most efficient insertion and uses the least amount of bandwidth.
2. singleSection — message insertion is restricted to a single section starting a packet. All inserted messages start on a packet (each MPEG packet will contain only 1 message). This uses the most amount of bandwidth.
3. twentyByte — message insertion is restricted to prevent any section from starting in the last twenty bytes of a packet. This is the same as efficient, except that no message can start in the last 20 bytes of an MPEG packet.
Changes to this parameter take immediate effect.
Copy Protection Source This determines the copy protection source when the SEM is in Cable Encryptor mode. The Copy Protection source setting determines how the SEM will update the output ECM (PRK) messages with CCI, APS, and CIT settings. The user selections are as follows:
1. External Controller 2. Input Program
The default selection is External Controller. In this mode, the External Controller, typically a DAC 6000, determines the copy protection settings. The SEM will insert the ECMs received from the DAC and will NOT alter the copy protection settings.
When Input Program is selected, the SEM will use the input program’s copy protection settings to update the output PRK messages. In this case, the SEM continuously monitors the input PMT for a DTCP descriptor and uses those copy protection settings to update the output PRK. Using this selection allows the SEM to maintain the copy protection settings previously defined by an upstream device.
This setting is not selectable or viewable unless the operating mode is set to Cable Encryptor.
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Item Definition
Changes to this parameter take immediate effect.
Detect Loss of Input PSI
Enabled When enabled, the SEM will detect a loss of an input stream or service based on the detection of PSI (PATs and PMTs).
When the SEM detects a loss of an input service, the SEM will stop multiplexing the service and stop the insertion of the output PMT for that service. In addition, the output PAT will be updated to not contain a reference to the service. The SEM will continue to look for changes on the input stream and will remultiplex the service if and when the input PAT and PMT are received.
Changes to this parameter take immediate effect.
Loss of Input PSI Timeout The amount of time after which an input PSI is considered lost. Valid range is 1 – 21600 seconds. It is highly
recommended that this setting be left at the default value (5 seconds). This setting is only used when loss of PSI detection is enabled.
Changes to this parameter take immediate effect.
Auto-Reboot Enabled Setting to “enabled” allows the SEM to automatically reboot when specific SEM hardware errors occur.
Boot Reason Indicates reason for SEM boot:
Power Cycle — Power-up or power cycled.
Operator Reboot — Operator commanded reboot.
ACP FPGA Reprogram — ACP FPGA reprogramming.
Hardware Fault — Automatic reboot occurred
*PIM Wildcard This setting is used in Cable Encryptor mode to override the program number in the Motorola Program Information Message (PIM) and Program Name Message (PNM) for each service. When enabled, the SEM will change the PIM and PNM program numbers to the wildcard value of 0 (0x0000).
This should only be enabled if the SEM is being used as a
“Central Encryptor” for Impulse Pay Per View (IPPV)
services. In this case, the SEM transmits the encrypted IPPV service over GigE to another EQAM device that is
multiplexing and performing the QAM modulation function.
This setting is not selectable or viewable unless the operating mode is set to Cable Encryptor.
*Change requires SEM reboot.
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SEM System Configuration — PID Remapping
This window provides the PID remapping parameters, which are used at initialization to determine how to partition the elementary range of 4096 PIDs.
When remapping PIDs, the elementary PID range is partitioned into services with an equal distribution of available PIDs.
Note: PID re-mapping must be enabled when the SEM is operating in SimulCrypt mode.
Figure 4-24 PID Remapping window
Table 4-8 PID Remapping Definitions
Item Definition
Output Interface
Pid Remapping Enabled When enabled, the SEM uses the output PIDs from a
predetermined range of PIDs for services and ancillary PIDs on the Output Interface. The output PID values for PMTs and all components will be determined by the SEM.
In addition, when enabled, the SEM is able to perform PID mask encryption (allows for encrypting large numbers of PIDs using fewer ACP resources).
When disabled, the output PIDs for all services and ancillary PIDs on the Output Interface are the same as the input PID values. The output PID values for PMTs and all components will be identical to the input PMT and component PID values. In addition, PID mask encryption cannot be performed.
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Item Definition
When PID Remapping is disabled, the user must ensure that the services mapped from multiple inputs do not have PID conflicts;
otherwise, the SEM maps the first service if there are PID conflicts on multiple services.
It is highly recommended that the SEM be used with PID Remapping enabled. This will ensure that there are no PID conflicts on an output stream.
PIDs Per Program Specifies how many PIDs are to be allocated for each service on the Output Interface. The elementary PID range consists of 4096 available PIDs. The SEM must be rebooted for this change to take effect.
Elementary PID range (4096 PIDs) partitioning is as follows:
PIDs Per
Program x Multiplexed Services
(Number of Programs) = Range
Number of Programs View-only field that indicates the number of output services as determined by the number of PIDs per service set with Total PIDs Per Program. For multiplexes with many services that have few PIDs per service, the value 16 set in Total PIDs Per Program causes a value up to 252 multiplexed services to appear in this field.
Config All Opens a new window that allows the user to configure all
“Enable” and “PIDs Per Program” fields to the same values.
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Item Definition
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