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2.4 FRS-111i Electrical Installation
When connecting the FRS-111i to external equipment, make sure that all serial digital
connections are point-to-point. For instance, there must be a point-to-point connection
between a
4:2:2 OUT
BNC and target equipment. If a T-connector is used to connect
other equipment, the maximum specified cable length is no longer valid.
Also, make sure that the cable lengths of the output serial digital cables are a maximum
250m (850') each. Refer to Figure 2.6 and to the following descriptions for a complete
FRS-111i electrical installation.
4:2:2 IN - serial digital input
Connect a serial digital video signal, conforming to the SMPTE 259M-C standard to the
BNC labeled
4:2:2 IN
. The FRS-111i will automatically switch to the detected line format
and turn on the corresponding LED on the module’s front end (figure 3.1).
Studio reference input with loop-through output
For external synchronization, connect the studio reference signal to the BNC labeled
REF IN
. The FRS-111i accepts SMPTE 170M/PAL ITU 624-4 or 2 Vpp/4 Vpp compo-
site sync reference signals. When using the Quartet, Quartet-C, Solo or Symphonie-R-C,
the FRS-111i provides a loop through output of the studio reference signal. Make sure to
terminate this output with a 75
Ω
terminator when it is not being used.
A valid analog composite reference signal will turn on the REF indicator located on the
module’s front end (figure 3.1). The reference signal must be NTSC for 60 Hz sources
and PAL for 50 Hz sources. If there exists a line format mismatch between the reference
input and the 4:2:2 input, the REF indicator flashes.
4:2:2 OUT 1 to 4 - serial digital video outputs
The FRS-111i provides 4 video output BNCs. These BNCs, labeled
4:2:2 OUT 1 -
4
provide a video signal conforming to the SMPTE 259M-C standard.
Delay – video processing delay signal and GPI output
When using a Quartet-M or Symphonie-R-M, the FRS-111i provides a video processing
delay signal through an RJ-45 connector using RS-422A transport standard. The video
tracking delay is a signal that specifies the current processing delay of the card. It
indicates to an audio processor the amount of delay that must be added in the audio path
to compensate for the video processing delay and frame sync function to avoid lip sync
problems.
Connector pinout is detailed on Figure 2.5.
The FRS-111i also shorts the GPI output to ground when an error is detected in the 4:2:2
video input, and optionally when a freeze is detected on the incoming video.
Summary of Contents for FRS-111i
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