Cobalt Digital COMPASS 9362 HD_SD-SDI Test Signal Generator - Manual (Page 9)

9362-OM (V4.1) 9362 PRODUCT MANUAL 1-5
Introduction
9362 Functional Description
9362 Functional Description
Figure 1-1 shows a functional block diagram of the 9362. With a valid input
present, the card passes input SDI and all ancillary data unaffected. In the
event of loss of input SDI, the card automatically outputs a Test Signal
Generator (TSG) selected pattern, selectable tones or silence on all four
groups of embedded audio, and can output timecode data generated from the
card. The card also can capture and store a frame received on the program
video input to be used as a pattern. A text overlay can be applied to the TSG
output frame. The test signal generator output can be manually invoked at any
time. The 9362 also handles AFD code detection/ insertion available when
outputting program video.
As such, the 9362 can provide test pattern failover when used with a live SDI
stream, while also providing text ID/pattern generation/timecode as a discrete
standalone source.
Note: Some of the functions described below are available only when using the
DashBoard™, or Cobalt
® OGCP-9000 or OGCP-9000/CC Control Panels
user interfaces. Refer to User Control Interface (p. 1-9) for user interface
descriptions.
9362 Input/Output Formats
The 9362 provides the following inputs and outputs:
• Inputs:
• HD/SD SDI IN – dual-rate HD/SD-SDI input
• Outputs:
• SDI OUT – four SD-SDI buffered video outputs; output selectable
from program video input/TSG failover, or manually set to TSG
output.
•
RCK OUT – four SD-SDI reclocked buffered video outputs
TSG Description
The TSG provides automatic failover or manual overwrite of the SDI OUT
signal with any of the following patterns:
• Black Flat Frame
• 75% Color Bars
• Sweep Pattern
• User Captured frame
When the TSG is invoked (either automatically of manually), all four groups
of embedded audio are overwritten with TSG channels (which can be set for
tones or silence as desired for each channel). When a TSG output is invoked,
text can be superimposed over the pattern. TSG output format can be selected
from NTSC and PAL SD formats, and 59.94 and 50 Hz 720p and 1080i HD
formats. User Captured TSG selection allows a full video frame to captured
and stored, available then as one of the pattern choices.