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smartCUE Interfaces | User Manual | Control Ports

DIGITAL I/O

Digital I/O provide digital input as well as digital output. Each Digital I/O port can be used either as input or

as output.

Pull-up resistor 680 ohms is connected to +5 VDC. Digital input is rated 0 – 24 VDC, threshold is 2 V.

Voltage on I/O with open output transistor is approx. 4.3 VDC, because protection diode is connected in

series (0.7 V drop-down). Voltage on I/O for output switch on is approx. 0.6 V. Max. 24 VDC / 80 mA can be

switched by output transistor.

Schematic diagram

INPUT

value CLOSE (< 2 V) / OPEN (> 2 V)

OUTPUT

value CLOSE / OPEN

680 Ohm

+5 VDC

Input / Output

Common

10 kOhm

Connector pin out

DIGITAL I/O

5-pin 3.5 mm Pin Signal Description

S S GS S

1 2 3 4 G

S Signal Input / Output Signal 1 - 4, 5 - 8

G GND Common ground for all I/Os

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 31 32

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