DigiDesign SYNC HD Manual page 23

Ref Present, Locked and Speed Cal
Indicators
The Ref Present, Locked and Speed Cal indicators
in the Session Setup window display synchroni-
zation status of the SYNC peripheral. The Locked
and Speed Cal indicators mirror the same LEDs
on the front panel.
Ref Present, Locked and Speed Cal Indicators
Ref Present The Ref Present indicator lights
when a valid video signal is present on the
Video Ref connectors.
Locked The Locked indicator stays lit when the
SYNC peripheral is locked to the selected clock
reference. The Locked indicator flashes if the se-
lected clock reference source is missing or out of
lockable frequency range.
Speed Cal The Speed Cal indicator lights to indi-
cate the status of the clock reference:
• Yellow Solid: SYNC HD is locked and that
the clock reference is within 0.025% of the
expected rate
• Yellow Flashing Fast: SYNC HD is locked,
but the clock reference is between 0.025%
and 4% faster than the expected rate
• Yellow Flashing Slow: SYNC HD is locked,
but the clock reference is between 0.025%
and 4% slower than the expected rate
• Red Flashing Fast: SYNC HD is locked, but
the clock reference is more than 4% faster
than the expected rate
• Red Flashing Slow: SYNC HD is locked, but
the clock reference is more than 4% slower
than the expected rate
• Unlit: SYNC HD is not locked to the chosen
clock reference
Positional Reference
To select a positional reference:
Select a positional reference from the
Positional Reference pop-up menu, located in
the SYNC Setup section.
Positional Reference choices include:
• Auto LTC/VITC
• LTC
• VITC
• Serial Time Code
• Bi-Phase
Sample Rate
The SYNC peripheral sample rate is determined
by the current Pro Tools session sample rate. In
Standalone mode, the SYNC peripheral sample
rate can be selected with the SYNC Setup soft-
ware utility (Windows only), or using the front
panel switches. Current sample rate is indicated
by the Sample Rate LEDs.
When used with Pro Tools HD, SYNC peripher-
als supports all available sample rates. Setting
the session sample rate in the Playback Engine
or Hardware Setup dialogs also sets the SYNC pe-
ripheral to that sample rate.
Chapter 2: Installation and Configuration 17