QSC DPA-Q, Quick Start Manual

Page: 10 / 11

10
TD-000477-01-A
GPIO
Examples
Refer to — Figure 19
Connector Pin
(see — Figure
23)
GPIO # and
Function
Specifications
1 3.3 V 100 mA max (power cycle to reset current limiting IC)
2 GPIO 1 5mA in/out, 3.3V max, 127 Ohm resistor in series
3 GPIO 2 5mA in/out, 3.3V max, 127 Ohm resistor in series
4 GND Ground
5 GPIO 3 5mA in/out, 3.3V max, 127 Ohm resistor in series
6 GPIO 4 5mA in/out, 3.3V max, 127 Ohm resistor in series
7 GND Ground
8 GPIO 5 18mA in/out max, 3.3V max, 127 Ohm resistor in series
9 RELAY NO Relay Normally Open
10 RELAY COM Relay Common
11 RELAY NC Relay Normally Closed
12 GND Ground
13 GPIO 6 18mA in/out max, 3.3V max, 127 Ohm resistor in series
14 GPIO 7 18mA in/out max, 3.3V max, 127 Ohm resistor in series
15 GND Ground
16 GPIO 8 18mA in/out max, 3.3V max, 127 Ohm resistor in series
— Figure 23 —
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
— Figure 24 —
Ground
Button or Contact Closure Potentiometer Q-SYS-Powered LED
+3.3V
GPIO
Analog In
Ground
GPIO
Ground
Works for LEDs up to 18 mA.
Current is limited in the GPIO circuit by
a 127
Ω
resistor in series.
GPIO 5-8
Ground
10 k
Ω