Figure 12 Jumper Location On The Adam-5080 Module - Advantech ADAM-5000 Series User Manual

ADAM-5080 Counter/Frequency Module
TTL/Isolated Input Level
According to your need, you can select either TTL or Isolated Input
Level by setting the configuration for the jumpers. Select the proper
jumper settings for either TTL or Isolated Input according to Figure
Figure 10. Please note that you must configure all six jumpers to the
correct configuration for proper function.

Figure 12 Jumper Location on the ADAM-5080 Module

Figure 13 TTL/Isolated Input Level Selectting
10
TTL Input Level Isolated Input Level
ADAM-5080 Counter/Frequency Module