User manual

TMCM-6110 Hardware Manual (V1.10 / 2012-JAN-25) 15

4.6.2 General purpose Inputs

The TMCM-6110 offers two I/O connectors with 8 inputs altogether including two dedicated analog inputs. All

inputs offer the same basic input protection circuit. The dedicated analog inputs have different input voltage

dividers in order to support a full scale input voltage range of 0…+10V. The other digital inputs have been

designed in order to be able to accept +5V and +24V signal levels.

+3.3V

IN_1,

IN_2,

IN_3,

IN_5,

IN_6,

IN_7

microcontroller

10k

22k

1nF

GND

GND GND

Figure 4.9: General purpose digital input circuit

+3.3V

AIN_0,

AIN_4

microcontroller

22k

10k

1nF

GND

GND GND

Figure 4.10: General purpose analog input circuit

The function of the inputs might differ depending on firmware version.