Instruction manual

SYNC HD Guide26
SYNC Peripheral Back Panel
Bi-Phase/Tach/GPI/Pilot
This is an accessory port for Bi-Phase, Tach, and
Pilot signals (specific cables are required for dif-
ferent applications). This connector is also used
for GPI input, output (including Fader Start),
and thru signals. This port handles up to 12 V
Bi-Phase.
Video Reference
Receives a signal from a video source, such as a
black burst (house sync) generator or a standard
video signal.
Video Ref input can be used for clock reference,
as well as for frame-edge reference when syn-
chronizing with 9-pin devices.
The following signal types are supported:
• SYNC HD: SD (NTSC/PAL) or HD (tri-level
or bi-level) signal
• SYNC I/O: SD (NTSC/PAL) signal only
The Video Ref ports are an un-terminated loop-
through that allows black burst or other video
reference to be passed to another device. The
second port outputs whatever signal is present
first port, whether the SYNC peripheral is on or
off.
When you connect a signal to one of these
ports, you must do one of the following:
• Connect a 75-ohm BNC terminator (in-
cluded with the SYNC peripheral) to the
other Video Ref port
– or –
• Make sure another terminated video device
is fed from the other Video Ref port.
Figure 2. SYNC HD Back Panel
Video Ref
Bi-Phase/Tach
Video Word Clock
AC PowerHost Serial
GPI/Pilot
Loop Sync
LTC In/Out
AES/EBU
In/Out
MTC Out 9-Pin Out 1
In/Out
9-Pin Out 2
In/Out
In/Out
Refer to Appendix C, “Wiring Diagrams
and Pin Assignments” for wiring informa-
tion and other specifications for this port.
If the SYNC peripheral is the last device in
the video sync chain, a 75-ohm BNC termi-
nator must be attached to this connector.