6. External interfaces
6-3. Tally connector
The tally connector comes with tally output, output enable, power supply or fan alarm output pins.
The output signals from the tally output pins are for lighting the tally lamps, and these outputs are open collector outputs.
1 | 2 | 3 | 4 | 5 |
6 | 7 |
| 8 | 9 |
Pin assignment
Pin No. | Signal name | Input/output | Description of signal |
1 | IN1 | Open collector output | Tally output of input video 1 |
2 | IN2 | Open collector output | Tally output of input video 2 |
3 | IN3 | Open collector output | Tally output of input video 3 |
4 | IN4 | Open collector output | Tally output of input video 4 |
5 | IN5 | Open collector output | Tally output of input video 5 |
6 | IN6 | Open collector output | Tally output of input video 6 |
7 | ENABLE | Input | Enable signal of tally output |
|
|
| Open: Output; GND: no output |
8 | ALARM | Open collector output | Fan alarm or power supply alarm output |
9 | GROUND | GROUND | Ground |
Pins 1 to 6 and pin 8 must satisfy the following conditions: |
| ||
Dielectric strength: Max. DC 24 V |
| ||
Current: | Max. 50 mA |
| |
Example of tally connections | ||
|
| (Max. voltage: 24V) |
| Tally, Alarm output |
|
| (IN1 to 6, ALARM) |
|
| (Max. current: 50mA) | Tally LED |
|
| |
| GROUND |
|
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