Grass Valley K2 Media Client System Guide v.3.3 - Manual (Page 193)

June 9, 2009 K2 Media Client System Guide 193
LTC Input/Output
LTC Input/Output
The K2 Media Client specification is shown in the following table.
VITC Input/Output
The K2 Media Client specification is shown in the following table.
RS-422 specification
The RS-422 interface conforms to ANSI/SMPTE 207M-1997 standard
(SMPTE 422).
Parameter Specification
Standard SMPTE 12M Longitudinal Time Code, AC coupled, differential input
Number of Inputs 1 per video input - Female XLR
Number of Outputs 1 per video output - Male XLR
Input Impedance 1K ohm
Output Impedance 50 ohm
Minimum Input Voltage 0.1 V peak-to-peak, differential
Maximum Input Voltage 2.5 V peak-to-peak, differential
Nominal Output Voltage 2.0 V peak-to-peak differential.
LTC Reader LTC reader will accept LTC at rates between 1/30 and 80 times the
nominal rate in either forward or reverse directions.
LTC Transmitter LTC transmitter outputs LTC at the nominal frame rate for the selected
standard at 1x speed, forward direction only.
Parameter Specification
VITC lines 10-20 NTSC (525 Line); lines 10-22 PAL (625 Line)
VITC is decoded on each SDI input and inserted on each SDI output.
VITC Reader configurable for a search window (specified by two lines)
or set to manual mode (based on two specified lines).
VITC Writer inserts VITC data on two selectable lines per field in the
vertical interval. The two lines have the same data.
VITC is not decoded off of the video reference input.