59 ADAM-5000 Series User Manual
Chapter 6 Counter
Frequency Modules
TTL/Isolated Input Level
According to your need, you can select either TTL or Isolated Input Level by set-
ting the configuration for the jumpers. Select the proper jumper settings for either
TTL or Isolated Input according to Figure 6.12, and Figure 6.13. Please note that you must
configure all six jumpers to the correct con- figuration for proper function.
Figure 6.12 Jumper Location for Isolation Mode
Figure 6.13 Jumper Location for TTL Mode
Table 6.1: ADAM-5080 Technical Specifications
Channel 4
Input Frequency 0.3 ~ 1000 Hz max. (Frequency mode) 5000 Hz max. (Counter
mode)
Input Level Isolated or TTL level
Minimum Pulse Width 500 µ sec. (Frequency mode) 100 µ sec. (Counter mode)
Minimum Input Current 2mA (Isolated)
Isolated Input Level Logic Level 0 : +1 V
MAX
Logic Level 1 : + 3.5 V to 30 V