Description of I/O extension modules
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7.7 RAD-DO8-IFS - digital extension module with eight
outputs
The RAD-DO8-IFS digital I/O extension module processes up to eight digital output signals
that are switched via transistor outputs. The eight outputs are arranged in two groups of four
outputs each with a common supply. The two output groups are electrically isolated from
one another, from the supply voltage, and from the electronics.
Since output groups DO1 ... DO4 and DO5 ... DO8 are electrically isolated, the outputs
must be supplied externally (see Figure 7-30).
• Outputs DO1 ... DO4 are supplied via:
– Terminal block 1.1 (12 V DC ... 30.5 V DC)
– Terminal blocks 1.2/1.3 (GND)
• Outputs DO5 ... DO8 are supplied via:
– Terminal block 6.1 (12 V DC ... 30.5 V DC)
– Terminal blocks 6.2/6.3 (GND)