Rosendahl nanosyncs HD - Manual (Page 9)

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9. LTC time code generator
From firmware 2.0 you can also start the internal LTC time code
generator manually without connecting to a host computer.
Therefor a new menu section has been implemented, indicated by
blinking LED "MMC/ MTC to LTC".
The new menu section appears next to "SPDIF" or previous to
"VIDEO REFERENCE".
Within this menu you can start and stop the time code generator with
the SELECT key.
The time code standard follows to the HD FPS section (L5) and can
be set to 23,98, 24, 25, 29,97 or 30 fps non drop standards.
The starting time defaults to 00:00:00:00 when no external time code
signal is present.
If a time code signal is applied on the LTC input (indicated by the
"LTC to MTC" LED) and the incoming time code standard matches
the HD FPS setting the unit performs a so called JAM SYNC and
takes over the time values of the external time code.
This also copies a detected 29,97 drop frame standard to the
generator when HD FPS is accordingly set to 29,97 (30 -0.1%).
The time code generator will be phase aligned to the HD video sync
generator and also to the SD sync generator if both generators are
running concurrent standards.
With different standards on the time code input and the HD FPS
section the generator can not be started in "JAM SYNC" mode.
24 and 24pd or 30 and 30pd standards can JAM SYNC each other,
but the generator will follow the HD FPS rate.
Changing the HD FPS settings while the time code generator is
running will not reset and restart the time code generator.
Please stop and restart the generator to take over a new frame rate.
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10. USB midi port, MMC and MTC
The nanosyncs HD has a USB (Universal Serial Bus) port for
bidirectional communications with a host computer.
The nanosyncs HD firmware complies with the USB Device Class
Definition for MIDI Devices Release 1.0.
Current operating systems as Windows XP or Max OSX support the
MIDI device class and can be connected without installation of a
software driver.
The nanosyncs HD unit is detected as Standard Audio Device (OSX
shows also the device name as nanosyncs HD).
Any application which uses MIDI ports can use the nanosyncs HD as
midi in or out port.
LTC to MTC:
Connect a LTC time code signal to the time code input (C9). The LTC
level can vary from -40 to +20 dBu.
Forward running LTC in the range of +/- 10% of playspeed is
translated into MTC quarter messages.
All LTC formats are automatically detected and the equivalent MTC
format is used.
Time code signals running reverse or slower/ faster than the +/- 10%
range will be translated into MTC Full Messages.
MTC Full Messages serve to spot a slaved DAW to the according
time code position whereas MTC quarter messages are used for
synchronisation at play speed.
The LTC TO MTC LED (column L14) indicates that LTC time code is
read and sent as MTC to the USB midi port.