Miranda SPG-1801 Instruction Manual download pdf (Page 13)

GUIDE TO INSTALLATION AND OPERATION

SPG-1801 | 9

• OFF – Do not insert timecode into the output reference signals.

The Timecode Processing pulldown offers two options:

• Normal – use the timecode selected by the Timecode Source pulldown as the output timecode source.

• Pass through – pass the incoming LTC timecode directly to the output without internal processing.

NOTE: This mode is required for correct operation when the LTC time code is not standard

running time code, e.g. when it is counting down. Using this mode will result in a 1-frame

delay in the time code as it passes through the SPG-1801.

The current status of time code available at the SPG-1801 input is shown in the LTC Status, VITC Status and TC

(URS) Status areas

• Valid (green icon): valid time code detected at the input

• Phase error (red icon):

SMPTE-12 specifies the phase relation between LTC and video. If the LTC received does not match this

alignment window, the card will flag this error.

• Frame error (red icon):

The time code must match the input reference frame rate. If not, an error is flagged.

• Absent (red icon): no time code detected at the input

Note: The error detection algorithm uses the current reference format. So, when using internal reference, all

information extracted from the input is out of phase, and the card may flag errors even if the timecode is nominally

OK.

3.3.3 Output tab

The Output tab provides resources to configure the output sync signals.

• Each of the two sync outputs can be configured independently.

Format – the pulldown selects the format of the sync output. Available choices

are:

• Black Burst 59.94

• Black Burst 50

• Tri-Level 1080i59.94

• Tri-Level 1080i50

• Tri-Level 720p59.94

• Tri-Level 720p50

• DARS 48 kHz

• Word Clock 48 kHz

Note that not all of these output choices will be available at all times. The output

formats available depend on the format of the reference input.

• The following chart shows the relationship between reference input

format and available output formats.

Figure 3.3 Output tab

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 19 20

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Miranda SPG-1801 Instruction Manual Page 13