AJA FS1 - Manual (Page 24)

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GPI
A female DE-9 connector provides connection to external
equipment or circuits via an isolated TTL-compatible interface.
Appendix B contains a pinout and specifications for the GPI
connector.
LAN
An RJ45 connector provides a 10/100 Ethernet port for connection
directly to a computer or Ethernet hub or switch for connecting to a
LAN. The FS1 is compatible with CAT-5 straight-through or cross-over
Ethernet cables, automatically detecting which is used.
SDI Input and Outputs
BNC connectors are provided for two SDI inputs and two SDI
outputs. SDI video connections include embedded audio In/Out
(depending on your parameter settings). The outputs are active all
the time, although you must specify the output format (and thus
whether any conversion takes place). For example, with an SD-SDI
input selected, you could set the SDI 1 output to HD 720p for an
upconvert, and then set the SDI 2 output to “Follow Input”
(bypass) to output the SD-SDI at the same format/framerate as the
input.
Use SDI wherever possible for the best quality 10-bit video input and output. If
peripheral equipment has a variety of inputs/outputs, look to see if it has SDI I/O,
and use it where possible.
Component (YPbPr/RGB)
Connect SD or HD component YPbPr or RGB video
cables from a VTR, camera, or other source to the three
input BNCs. Then connect the YPbPr or RGB output
BNCs to your destination component device. Component
video signals are A/D (input) and D/A (output) converted
(10-bit). Like the SDI 2 output, Component can be set to
Bypass (follow input). Output is affected by 5.3 Aspect
Ratio and 1.3 Component Out parameter settings (see
chapter 4 for discussion of these parameters).
S-Video (Y/C)
S-Video input and output female 4-pin mini-DINs provide for connection
of desktop video/prosumer level equipment, including camcorders, VCRs/
VTRs, and monitors—to name a few. Use high quality shielded S-Video
cables when making connections. S-video signals are converted internally
to 10-bit digital. Output is affected by 5.3 Aspect Ratio and 1.3 Component
Out parameter settings (see chapter 4 for discussion of these parameters).