CAT

Conditional Access Table (CAT) is a DVB table that describes the conditional access system and their EMM (Entitled Management Message).

ID	*Name*	*Event Error*	*Description*
23	CAT Not Found	CAT Not Found	CAT table not found; either PID is missing, or the table was not found in the PID.
24	CAT Repetition Too Slow	CAT Repetition Too Slow	CAT repetition rate too slow; this is a user-configurable threshold.
26	Table ID Error on CAT PID	CAT Table ID Error	CAT table ID field is not equal to 0x01.
70	Max Crypto Period Value	Crypto Word Interval	The detected crypto period is not within the configured time. Crypto Period is the time an encryption key is used before it is replaced. For the default, a Crypto Period, the key is changed every 10 seconds. This event measures the maximum amount of time the system uses the same key. If the key is used beyond the configured value for key replacement, an event is triggered.
71	Content Scrambled While Configured as Clear	PID Scrambled	The PID content is marked as scrambled in the TS Packet header, while configured as clear in the channel configuration.
72	Content Clear While Configured as Scrambled	PID Is Clear	The PID content is marked as clear in the TS Packet header, while configured as scrambled in the channel configuration.
82	CAT Is Illegal	CAT Illegal	Illegal values or length on CAT table.
104	CC Errors on CAT	CC Error on CAT	CC errors detected on the CAT PID.
108	Verify Scrambled Content Scrambling	Scrambling Fault	Detected unscrambled content, which is marked as scrambled in the TS packet header.
110	EMM Descriptor Missing	EMM Desc Missing	Crypto word is the key required to descramble the content. In a regular system, the crypto word is encrypted with another key known as ECM. The ECM is sent as a part of the Transport stream to all the users. ECM is sent as a part of EMM, which is the same key encrypted by another layer to be sent for a single user. The smart card in the setup box does the decryption of the EMM. This way, each user obtains his unique key in a round-robin fashion through the EMM. Thus, ECM is encryption for each service or program, whereas EMM is for each customer. Configured EMM descriptor does not exist on the stream.
111	ECM Descriptor Missing	ECM Desc Missing	Configured ECM descriptor does not exist on the stream.
112	EMM Private Data Changes	EMM Private Data	The Private Data field of one of the EMMs has been changed.
113	ECM Private Data Changes	ECM Private Data	The Private Data field of one of the ECMs has been changed. This can be caused due to a change in the channel's access criteria.
114	EMM CA-ID Change	EMM CA-ID	CA-ID of a specific EMM has been changed.
115	ECM CA-ID Change	ECM CA-ID	CA-ID of a specific ECM has been changed.
232	Descrambling key missing, can't descramble	No descrambling key	There is no key to descramble content. It's relevant only while using a descrambling license.
233	Clear CW for ECM is missing	No CW for ECM	This event is triggered when the CW required for decoding the channel is not found in the MCM cache. The required CW is defined by the ECM. The Control Word (CW) data in the ECM is missing or is clear.
431	BISS-2 fault	BISS-2 Fault	This event is triggered when a channel is configured for "BISS-2" KMS and if there is an error during the decryption/key handling process. The extra data is a free text message describing the type of problem. Current options available are "emm not found" / "entitlement ID missing" / "Bad public key" / "missing session key".