DB9 Connector
DB9 connector
(PC bracket viewed from outside)
VIDEO2 and VIDEO3 are selectable color or monochrome composite inputs. Each of them is terminated with a removable 75Ω resistor. The POWER pin can be connected to +5 V or +12 V.
I/O Lines
Picolo offers four I/O lines named IO1, IO2, IO3 and IO4. They are available on the DB9 connector. They can be read or written by software. They have a common ground and are TTL compliant. Moreover, IO1 can be configured by software as an external acquisition trigger line for acquisitions.
Input lines
Name |
Index |
IN1 |
1 |
IN2 |
2 |
IN3 |
3 |
IN4 |
4 |
Reserved |
5 to 119 |
Output lines
Name |
Index |
OUT1 |
1 |
OUT2 |
2 |
OUT3 |
3 |
OUT4 |
4 |
Reserved |
5 to 40 |
I/O lines on DIGITAL IO connector
Connector |
Name |
Pin name |
Signal location |
Return location |
Nominal usage |
Style |
DB9 |
IN1 |
IO1 |
Pin 6 |
Pin 2 |
General-purpose |
TTL input |
IN2 |
IO2 |
Pin 7 |
||||
IN3 |
IO3 |
Pin 8 |
Pin 4 |
|||
IN4 |
IO4 |
Pin 9 |
Connector |
Name |
Pin name |
Signal location |
Return location |
Nominal usage |
Style |
DB9 |
OUT1 |
IO1 |
Pin 6 |
Pin 2 |
General-purpose |
TTL output |
OUT2 |
IO2 |
Pin 7 |
||||
OUT3 |
IO3 |
Pin 8 |
Pin 4 |
|||
OUT4 |
IO4 |
Pin 9 |