Reset Processing; Mode Transitions; Hunt Mode; Table 3 Hunt Mode Properties - Evolution Digital HD uDTA User Manual

Evolution Digital
Please note the DTA should not be sent an activation and or configuration message while in Boot Mode. These
messages should only be sent when the DTA is in Pending Initialization Mode.

2.2.1 Reset Processing

As mentioned in the previous section, the DTA will enter Boot Mode when a reset is received. The DTA will
process a reset from the headend controller when in Hunt, Pending Initialization, Normal Operations or Common
Download mode. The DTA will not process resets sent from the headend controller when in Trouble Mode. Resets
are discussed more in Section 4.0.

2.2.2 Mode Transitions

The DTA will transition from Boot Mode to Hunt Mode after successfully validating a stored image.
The DTA will transition from Boot Mode to Trouble Mode if it fails to validate a stored image.
2.3

Hunt Mode

The DTA will enter Hunt Mode from Boot or Pending Initialization Modes; please see these respective sections for
more details about how the DTA enters Hunt Mode. In Hunt Mode, the DTA is looking for a QAM frequency
containing a CAT PID with a valid CA system ID. Once all conditions are met, the DTA will enter Pending
Initialization Mode. Table 3 details the properties of Hunt Mode.
EVO-SUP-DMS2002HD-U-001-v1r0
IR Input
In-band Message
Processing

Table 3 Hunt Mode Properties

Mode activities
Valid Mode Transition(s)
LED status
Disabled
None
Search for QAM with
CAT PID and valid CA
system ID.
Pending Initialization
Continuous blink
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