Accom ASWR8150, Technical Manual

Page: 32 / 236

Enhanced (Frame Delay) Output Module [13]
The Enhanced Output module may be installed in some 8100s and is
installed in all 8150s, with the possible exception of those 8150s that were
upgraded from 8100s. It processes signal outputs as follows.
Auxiliary Outputs (Optional)
Aux 1, 2
The Frame Delay Output module has two serial digital auxiliary bus
outputs for external processing feeds or for isolated feeds. These outputs
are always cotimed, and are delayed two lines, 18 lines, or 34 lines from
reference, depending on the source selected. You can also select a one
frame delay so that you can re-enter and retime these outputs back into
your video system. The output connectors are always present, whether
the option is installed or not.
Auxiliary Reference (Aux Ref)
The Aux Ref feed is a variably-delayed analog composite sync signal
that provides locking reference for video devices (typically DVEs) fed
by Aux bus outputs 1 and 2. Aux bus output timing varies according to
the source selected for the output, and Aux Ref is always zero timed to
Aux 1 and 2. See Section 6 – System Timing for more information.
Component Analog Monitor Outputs
Y, R-Y, B-Y
You can select this monitor feed as Preview, Program 1, or Program 2
video. Its timing (34-line or frame delay) follows the settings for the
output selected for it. This output is in the SMPTE/EBU N10 component
analog video format (700 mVp-p video with 300 mVp-p sync on Y).
NOTE: This output is intended for monitoring only and is
not recommended for program distribution or recording.
Program Outputs
The optional Output module provides two serial digital program
outputs that have identical video content but different output timing.
The Program 1 output delay from reference is selectable between one
frame for normal use and 34 lines plus approximately 5 microseconds
for use during preread operations with component digital VTRs. The
Program 2 output has a fixed delay of one frame.
Preview Output
The optional Output module provides one serial digital preview output.
It has a delay from reference that is switchable. You can set it to 34 lines
plus approximately 5 microseconds for preread operations, or to one
frame delay for normal operations.
Video Processing Functional Description 8150 Technical Guide
1-20
Introduction
9100-0212-04 - May 2000