Chapter 3
Chapter 3 I/O Modules
3-49
3.12 ADAM-4051 16-channel Isolated Digital Input Module
The ADAM-4051 is a 16 channel Digital Input Module. It is built
with 2500VDC optical isolation, and it is suitable for critical applications.
The main difference from other modules is that ADAM-4051 accepts
10 ~ 50V input voltage to fit various digital signals like 12 V, 24 V, and
48 V. Moreover, users can read the current status from the LED
indicators on the front panel.
Figure 3-44 ADAM-4051 16-channel Isolated Digital Input Module
• Channel: 16 (4-channel/group)
• Optical Isolation: 2500 VDC
• Opto-isolator response time: 25 μs
• Over-voltage Protect: 70 VDC
• ESD (Electro Static Discharge): 2000 VDC
• LED Indicator: On: Active; Off: Non-active
• Input Voltage:
Dry Contact Logic level 1: close to GND, Logic level 0: open
Wet Contact Logic level 1: 10 ~ 50 V, Logic level 0: 3 V
• Power consumption: 1W @ 24 VDC
• I/O Connector Type: 13 pin plug-in terminal*2