QSC CXD-Q, Quick Start Manual, Page: 8 / 9

8
TD-000437-00-B
NPIO
Connector
Pin
GPIO # and
Function
Specifications
1 3.3 V 100 mA max (power cycle to reset current limiting IC)
2 GPIO 1 5 mA in/out, 3.3 V max; 127 ohm resistor in series
3 GPIO 2 5m A in/out, 3.3 V max,;127 ohm resistor in series
4 GND Ground
5 GPIO 3 5 mA in/out, 3.3 V max; 127 ohm resistor in series
6 GPIO 4 5 mA in/out, 3.3 V max; 127 ohm resistor in series
7 GND Ground
8 GPIO 5 18 mA in/out max, 3.3 V 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 18 mA in/out max, 3.3 V max; 127 ohm resistor in series
14 GPIO 7 18 mA in/out max, 3.3 V max; 127 ohm resistor in series
15 GND Ground
16 GPIO 8 18 mA in/out max, 3.3 V max; 127 ohm resistor in series
Examples
— Figure 19 —
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
— Figure 20 —
Q-Sys-Powered LED
Works for LEDs up to 18 mA.
Current is limited in the GPIO circuit
by a 127Ω resister in series.
Button or Contact Closure
GPIO
Ground
Potentiometer
GPIO
Analog In
Ground
+3.3 V GPIO 5-8
Ground
10 kΩ