Operating instructions

GUIDE TO INSTALLATION AND OPERATION
4 | FRS-1801
2.4 Rear Panel Connectors
Figure 2.2 FRS-1801 Rear Panels
REF IN – Studio reference input
For external synchronization, connect a black studio reference signal to the BNC labeled REF IN.
The reference input must conform to SMPTE 170M/SMPTE 318M/ITU 624-4/BUT 470-6 for standard
definition signals and SMPTE 274M / SMPTE 296M for high definition signals and is used to phase the
HD/SD SDI outputs to the studio. A reference mismatch may occur if there is a difference between the input
video format’s frame rate and the reference format’s frame rate. When a mismatch occurs, the output will
freeze to the reference frame rate and produce an input error and the card-edge Status LED will turn red to
indicate the mismatch.
Note that in the case of HD signals of the same frame rate, any reference signal may be used to genlock any
output signal, regardless of scan type (progressive or interlaced). When a 720p/tri-level sync reference signal
is used with an interlaced output, the output is synchronized but there may be a delay of one field depending
on when the synchronization started.
HD/SD SDI IN – serial digital HD/SD input
Connect the serial digital video signal, conforming to the SMPTE 292M standard for HD input signals and
SMPTE 259M standard for SD input signals, to the BNC labeled HD/SD SDI IN. The FRS-1801 will
automatically switch to the detected line format.
HD/SD SDI OUT – serial digital video outputs
The FRS-1801 provides two HD/SD SDI video outputs on BNC connectors, labeled HD/SD SDI OUT 1 and
2. The SDI video signal conforms to the SMPTE 292M and SMPTE 259M-C standard.