Cabling, Input, Outputs – Grass Valley 8981FS User Manual

Page 12: Reference input, Delay control output

8981FS Instruction Manual

8981FS Digital Frame Synchronizer Module

Cabling

Note

At the back of this manual are overlay cards that can be placed over the rear
connector BNCs to identify the specific 8981FS connector functions.

Input

Connect an input source to the input connector, J7 (see

Figure 3

). The

8981FS input will accept either 8- or 10-bit Serial Digital Component video
per SMPTE 259M-C or EBU technical standard 3267.

Figure 3. 8981FS Input/Output Connectors

Outputs

The 8981FS has four serial digital video outputs—J1 through J4.

Reference Input

For operation as a Frame Synchronizer, a loop-through input is provided
for an analog color black 525- or 625-line signal. Acceptable sync level is 140
to 560 mV peak-to-peak. Terminate the unused connector into 75

Ω

if the

signal is not looped to other equipment. No reference input is required if
the module is used as a fixed Delay.

Delay Control Output

Two audio delay control outputs (J5 and J6) are provided for input to Grass
Valley Auto-tracking Delay DAs for audio synchronization. A BNC Tee
connector can be used if more than two audio delay modules are required.

J9 J10

Four Component
Serial Digital Video
Outputs

O
U

0719_02

Loopthrough

Reference Input

Component Serial
Digital Video Input

GPI

Delay Control
Signal Output

Delay Control

Signal Output