I/O Connector
Picolo Tymo provides an internal 20-pin header connector named I/O. This connector offers five solid-state relay outputs OUT1, OUT2, OUT3, OUT4 and OUT5, and four contact-closure inputs IN1, IN2, IN3 and IN4.
20-pin male receptacle, dual-row 2.54mm pitch, straight shrouded header
(board viewed from component side)
I/O pins assignment
Pin # |
Pin name |
Usage |
1 |
GND |
Signal ground |
2 |
GND |
Signal ground |
3 |
IN1-A |
|
4 |
IN1-B |
|
5 |
IN2-A |
|
6 |
IN2-B |
|
7 |
IN3-A |
|
8 |
IN3-B |
|
9 |
IN4-A |
|
10 |
IN4-B |
|
11 |
OUT1-A |
|
12 |
OUT1-B |
|
13 |
OUT2-A |
|
14 |
OUT2-B |
|
15 |
OUT3-A |
|
16 |
OUT3-B |
|
17 |
OUT4-A |
|
18 |
OUT4-B |
|
19 |
OUT5-A |
|
20 |
OUT5-B |
|
Note. Each input and output line is composed of a pair of wires. There is no polarity between the two wires of one pair, and both wires can be used indifferently as positive or negative terminal.