
Flex PRO / Flex M Pre-Engineered Radio Control System Instruction Manual
April 2012
Page 30 of 42
Figure 26: Typical Relay Wiring
9.4. FLEX M ANALOG I/O MODULE
Outputs: The four analog output signals are able to send voltage signals from 0 to +/-10VDC, at an 8bit
resolution. These outputs are for reference voltage only, so each one can only supply 20mA of current.
The outputs share a common ground reference, which is isolated from the Flex M system ground and any
additional I/O card output ground. These outputs can be preconfigured at the factory for different voltage
ranges (ex. 0-5VDC, or 3-6-9VDC).
Inputs: The four analog input signals are able to receive voltage signals from 0 to +10VDC, at an 8bit
resolution. The input impedance is 20K for these inputs. The inputs share a common ground reference,
which is shared with the Flex M system ground.
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