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Chapter 5: Connecting
5.6 General I/O
General I/O provides analog input as well as digital output. Each General I/O port can be used either as input or as output.
A 680-ohms pull-up resistor connects to +5 VDC and can be switched on and off for each I/O independently. I/O voltage with
pull-up on is approx. +4.3 VDC, because the protection diode is connected in series (0.7 V dropdown).
Analog input is rated 0 – 5 VDC. Analog to digital (A/D) converter has 10-bits precision (i.e. 1024 levels).
Digital output can switch max. 24 VDC / 80 mA. Output voltage for output switch on is approx. 0.6 V.
I/O schematic diagram
value CLOSE / OPEN
680 Ohm
value ON / OFF
ON OFF
+5 VDC
A
D
Input / Output Signal
Ground
10 bit
INPUT
OUTPUT
PULLUP
Figure 5-12. I/O schematic diagram.
Connector pinout
Table 5-18. Connector pinout.
GENERAL I/O
5-pin 3.5 mm
Pin
Signal
Description
S S
G
S S
1 2 3 4
S
Signal
Input / Output Signal 1 - 4
G
GND
Common ground for all I/Os
Содержание ControlBridge CB-ACC-232DCE-30
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