VideoMUX (Video Multiplexer)
- Updated2023-08-17
- 2 minute(s) read
VideoMUX (Video Multiplexer)
NI VMS is designed to use the VideoMUX as an external video signal input connection, multiplexing, and triggering interface.
| Input Channels | 8 + 8 |
| Input Connectors | BNC |
| Input Impedance (Ohms) | 75 |
| Output Channels | 2 |
| Output Connectors | BNC |
| Output Impedance (Ohms) | 50 |
| CVBS/CAV Sync Extraction | Yes |
| H+V Sync Extraction | Yes |
| Trigger Output | Yes |
| Remote Control Interface | USB |
The Ch0 and Ch1 outputs are designed to connect to the CH0 and CH1 inputs of the NI 512X digitizer. The trigger output is designed to connect to the TRIG external trigger input of the NI 512X digitizer.
The various combinations of signals (referred to as signal input modes) are detailed in the tables below.
Video Connections Using a 512X Digitiser
512X Digitiser Only
| 512X Input | CVBS Only | S-Video Only |
|---|---|---|
| 0 | CVBS1 | S-VideoYs1 |
| 1 | CVBS2 | S-VideoC1 |
Digitiser + VideoMUX
| BNC Input | CVBSx16 | 8xCVBS + 4xS-Video | 4xCVBS + 2xS-Video + 2xCAV | 8xCVBS or 4xCAV |
|---|---|---|---|---|
| Top Row | ||||
| 1 | CVBS1 | CVBS1 | CVBS1 | CVBS1 G1 Y1 |
| 2 | CVBS2 | CVBS2 | CVBS2 | CVBS2 G2 Y2 |
| 3 | CVBS3 | CVBS3 | S-VideoYs1 | CVBS3 G3 Y3 |
| 4 | CVBS4 | CVBS4 | S-VideoYs2 | CVBS4 G4 Y4 |
| 5 | CVBS5 | S-VideoYs1 | G1 Gs1 Ys1 | CVBS5 Gs1 Ys1 |
| 6 | CVBS6 | S-VideoYs2 | G2 Gs2 Ys2 | CVBS6 Gs2 Ys2 |
| 7 | CVBS7 | S-VideoYs3 | – | CVBS7 Gs3 Ys3 |
| 8 | CVBS8 | S-VideoYs4 | – | CVBS8 Gs4 Ys4 |
| H | – | – | H | H |
| CH0 | – | – | – | – |
| Sync1 | – | – | S1 | S1/S3 |
| Bottom Row | ||||
| 9 | CVBS9 | CVBS5 | CVBS3 | B1 Pb1 |
| 10 | CVBS10 | CVBS6 | CVBS4 | R1 Pr1 |
| 11 | CVBS11 | CVBS7 | S-VideoC1 | B2 Pb2 |
| 12 | CVBS12 | CVBS8 | S-VideoC2 | R2 Pr2 |
| 13 | CVBS13 | S-VideoC1 | B1 Pb1 | B3 Pb3 |
| 14 | CVBS14 | S-VideoC2 | R1 Pr1 | R3 Pr3 |
| 15 | CVBS15 | S-VideoC3 | B2 Pb2 | B4 Pb4 |
| 16 | CVBS16 | S-VideoC4 | R2 Pr2 | R4 Pr4 |
| V | – | – | V | V |
| Ch1 | – | – | – | – |
| Sync2 | – | – | S2 | S2/S4 |