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Metor 900M
P/N 101023281
Installation and Operating Manual
Rev. 0.5
Rapiscan Systems Proprietary Information
3.7 Connections for Digital I/O
The Metor 900M has two configurable digital inputs and two configurable digital outputs.
The digital inputs have a pull-up resistor to 3.3 V. Maximum input voltage is 5 VDC.
Recommended connection is a switch that connects input (pin 3) to ground (pin 1).
Maximum load for each relay output is 24 V and 1 A.
WARNING
Line voltage or any circuit connected to line voltage may not be connected to any of
the connectors in the electronics, including the relay outputs. External isolation
circuitry (double/reinforced insulation) must be used if a circuit connected to line
voltage must be controlled.
