|Isolated Input Level||On Voltage Level: +4.5 VDC ~ +30 VDC
Off Voltage Level: +1 VDC Max.
|TTL Input Level||On Voltage Level: +2 VDC ~ +5 VDC
Off Voltage Level: 0 VDC ~ +0.8 VDC
|Minimum Pulse Width||2 µs|
|Input Frequency||1Hz ~ (typically) 250kHz (both counter mode and frequency mode)
where 250kHz is calculated as follows:
supposed that duty cycle = 50%, refer to Minimum Pulse Duration of High Level, we have pulse period = 2 µs x 2 = 4 µs, which is 250kHz as a maximum.
refer to Minimum Pulse Duration of High Level, maximum frequency is highly affected by duty cycle.
Frequency Accuracy = ± 0.4%
|ESD Protection||2kV (Contact for each channel)|
|Indicators & Bus Type|
|LED Display||1 x LED as Power Indicator
8 x LED as Digital Input Indicators
|Physical and Environmental|
|Dimensions||30mm x 102mm x 115mm|
|Operating Temperature||-25 ~ 75°C|
|Humidity||5 ~ 95%, non-condensing|
Internal Structure :
Pin Assignments :
Wiring Diagram :