Grass Valley 8950ADC - Manual (Page 10)

10 8950ADC Instruction Manual
Installation
Cabling
Note At the back of every hard copy manual are die-cut overlay cards that can be
placed over the rear BNCs to identify specific 8950ADC connector functions.
Analog Video Inputs
Connect analog component video inputs to input connectors J3, J5 and J7
(see
Figure 3 ). The 8950ADC accepts Y, (B-Y), (R-Y) or GBR analog input,
with or without sync on the Y/G channel. For specific input signal types,
refer the Analog Inputs listed in the
Specifications on page 33 .
Loop-through External Sync Input
The External Sync Input is used to provide external sync for Y/G channel
inputs that do not have a sync component. There are horizontal and vertical
phase timing requirements for the Y/G and Sync input signals (see
Using
External Sync on page 14 for timing considerations).
Connect a sync input source to one of the loop-through input connectors,
J9 or J10 (see
Figure 3 ). The 8950ADC External Sync input accepts color
black or composite sync reference signal input. Terminate the unused con-
nector into 75
Ω if the signal is not looped to other equipment.
Digital Video Outputs
SMPTE 259M digital are output on BNC J1 and J2 from the Y, (B-Y), (R-Y)
or GBR analog component signal. Destination equipment should have a
75
Ω input impedance or loop through inputs that are terminated into 75 Ω .
Figure 3. 8950ADC Input/Output Connectors
J2
J4
J6
J8
J9 J10
IN
J3
J5
J7
J4
J6
J8
J2 J1
0603-02
Loop-through
External Sync Input
Digital Output 1
R-Y/R Input
B-Y/B Input
Digital Output 2
Y/G Input
DAx
O
U
T
Not Used