Extron IPL EXP S2 handleiding
Handleiding
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IPL EXP I/O Series • Hardware Features and Installation 23
• Digital I/O digital input with pull-up disabled:
• Digital input is triggered by an external switch or voltage between the digital input pin and ground.
• Example application, digital input without pull-up: occupancy sensor connection:
Control
Signal
Ground
+5.0 V
1k ohms
SW 2
SW 1
Digital
I/O
GND
Voltage
Protection
CTL
Occupancy
Sensor
Figure 12. Digital I/O Digital Input Application:
Occupancy Sensor, Without Pull-up
Room occupied: logic high, front panel LED (IPL EXP RIO8 only) is off.
Room unoccupied: logic low, front panel LED (IPL EXP RIO8 only) is lit.
NOTE: Occupancy sensors typically supply +24 VDC when occupancy is detected. After a set time
with no occupancy, the sensor supplies 0 VDC.
• Digital I/O digital input with pull-up enabled:
• When the port is configured for pull-up, switch 2 is closed, activating the +5.0 VDC pull-up resistor.
• When an external switch closes (shorts to ground, logic low), the port is on and (for the IPL EXP RIO8
front panel only) LED is on.
• When the external switch opens (logic high), the port is off. The IPL EXP RIO8 front panel LED is off.
• Example application, digital input with pull-up: connecting a two-position switch
+5.0 V
1k ohms
SW 2
SW 1
Two-position
Switch
Digital
I/O
GND
Voltage
Protection
CTL
Figure 13. Digital I/O Digital Input Application:
Two-position Switch With Pull-up
Two-position switch is open: logic high, front panel LED (IPL EXP RIO8 only) is off.
Two-position switch is closed: logic low, front panel LED (IPL EXP RIO8 only) is lit.
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Productinformatie
| Merk | Extron |
| Model | IPL EXP S2 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 7534 MB |
