Model 8010TM SDI Time Code Master Manual
Page 3-18
Revision 1.5.1
OPERATION
3.4.14. Generator Parity Mode Selection
The purpose of the phase correction parity bit (LTC bit 27 in NTSC, 59 in PAL) is to compensate for
phase reversals in the LTC bi-phase mark modulation that could occur when code inserts are
performed. Use of the bi-phase mark parity bit is optional as some readers may not recognize its
presence.
GEN LTC PARITY
The
GEN LTC PARITY
item controls the parity mode of the generator.
Select
Ltc parity off
to configure the generator for the non parity mode.
The bi-phase mark parity bit will be always set to zero.
Select
Ltc parity on
to configure the generator for the parity mode. The
bi-phase mark parity bit will be put in a state where every 80 bit word
will contain an even number of logic zeros, in order that the
magnetization transient between bit cell 79 of one word and bit cell zero
of the next shall always be in the same direction.
Ltc parity off
Ltc parity on
3.4.15. Configuring How the Continuous Jam Sync Mode Works
when there is No Reader Code
GEN NO CODE JAM
The
GEN NO CODE JAM
item controls the operation of the continuous
jam sync mode when there is no incoming code.
Select
No code jam run
when you want the generator to free run when
there is no incoming Reader code. When the reader code resumes, the
generator will re-jam to the incoming code. Using this mode will allow
the user to repair large dropouts in the incoming code. The generated
code will be continuous if the incoming code is also continuous.
Select
No code jam hold
when you want the generator to stop when
there is no incoming Reader code. When the reader code resumes, the
generator will re-jam to the incoming code. Use this mode if you want
the output of the generator to stop on the last number read when you
stop the tape machine supplying the incoming code to the reader.
Select
No code jam mute
when you want to turn off the generator when
there is no incoming Reader code. The generator time will stop at the
last number read. When the reader code resumes, the generator will
turn on and re-jam to the incoming code. Use this mode if you want the
output of the generator to turn off completely when you stop the tape
machine supplying the incoming code to the reader.
No code jam run
No code jam hold
No code jam mute
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