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SimpleComTools, LLC
 User Manual
SimpleComTools, LLC
Connecting Sensors, Switches, or Devices
The COM1000 provides the following hardware interfaces:
One Analog Input
Four Digital Inputs
One Relay Input
The following describes how to wire sensors, switches or controls to these inputs.
The ANALOG interface has the ability to accept any sensor with a DC voltage
output ranging between 0 and 30 volts. (Examples of acceptable sensor ranges
would include 1
30, etc).
The analog interface has two inputs;
the leftmost input (labeled 0
30) is where you place the sensor’s POSITIVE or
OUTPUT line. The rightmost input (labeled GND) is where you connect the
round wire.
The DIGITAL interface is designed to connect up to (4) dry contact closures.
The interface provides
(6) wire inputs; (4) switch inputs
and (2) ground
Switches are connected across any of the inputs (labeled with numbers 1,2,3,4)
The grounds
labeled with GND
are used as commons, and
where you
connect the second switch wire.  The reasons for only (2) commons
you can share the GND inputs between switches 1 and 2 or
witches 3 and 4.
The following is a wiring example:
The digital inputs are self powered and require dry contact closures.
Applying voltage to the
nputs may result in permanent damage to the unit
designed to switch currents (120VAC/1A, 24VDC/2A
In a sense, the RELAY can act as a contact closure or switch for an
device. It can be used to trigger another device with a digital input
another relay.
The relay connections are labeled as
rmally Open (
Common (COM), and Normally Closed (NC)
When wiring,
onnect your wires
NO and COM if you want the switched circuit to be CLOSED when the
relay is ACTIVATED
onnect your wires to NC and COM if you want the
switched circuit to be
when the relay
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