Serial Digital VBI Data Bridge
Inserts VBI data into DSV
Copy VBI data
Move data between VBI lines
Asynchronous data input
Advanced sync reference output

The VDB Data Bridge is designed to provide a cost effective solution to several system integration problems involving data signals carried on VBI lines. The Data Bridge has two inputs, the digital program input and a data input. The data input is either digital or analogue or both may be fitted. An internal buffer stores the VBI data allowing it to insert data from non - synchronous sources. With the Data Bridge it is possible to take VBI data from one digital stream and insert it into another, copy VBI data between SDV streams, swap data between different lines in the VBI or insert ITS signals. The VBI data is stored in the buffer as a video signal and is not decoded or regenerated allowing the Data Bridge to be used with any type of VBI signal. Line selection can be controlled from an integral from panel, or may be programmed in an EPROM. An optional analogue PAL/NTSC ouput is available for monitoring purposes.

Specifications
Inputs
Program : 1 X BNC, SDV 270 Mb/s to EBU tech 3267, SMPTE 259M
VBI Data(SDV) : 1 X BNC, SDV 270 Mb/s to EBU tech 3267, SMPTE 259M
VBI Data (Y) : 1 X BNC, Analogue composite PAL/NTSC 1v p-p into 75R. Y only sampling with full spec 601 filters.

Outputs
Program : 1 X BNC, SDV 270 Mb/s to EBU tech 3267, SMPTE 259M with power fail bypass relay.
Out : 1 x BNC. Reclocked SDV 270 Mb/s to EBU tech 3267, SMPTE 259M.
Aux : 1 x BNC. SDV 270 Mb/s to EBU tech 3267, SMPTE 259M.
Mon : 1 x BNC. Analogue composite PAL/NTSC, 1v p-p into 75R.
Syncs : 1 x BC. Analogue advanced syncs & black, 0.3v or 2v. Timing 0-1us advance in 74ns steps.

Control
RS232/GPI 1 x 9 way male 'D' for remote control & GPI selection of insertion tables.
RS422 1 x 9 way male 'D' for remote control.

Physical : 19" rack mounting 1U case, 400mm deep.

Ordering Information
VDB-SD : Data bridge with SDV data input, front panel setup & control
VDB-ANX: Data bridge with analogue data input, front panel setup & control (no SDV data input)

Options
-MON Analogue composite PAL/NTSC output for monitoring
-ITS Insertion Test Signal (UK or CCIR)
-DM Dual mains inlet & trnsformer