I
T
RIXX
WFMN W
IRE
C
HART
There is 1 cable on the iTrixxWFMNDi, and 3 cables on the iTrixxWFMNADi. From the top to bottom, they are marked as cable 1,
2, 3. See the chart below for explanation.
Cable 1: Analog Inputs (for iTrixxWFMNADi only)
Cable 2: Relay Outputs (for iTrixxWFMNADi only)
Cable 3: Digital Inputs and Power Input
2
Wire Color
Function
Note
Red
1248VDC
Power Input
Black
Ground
Green
DIN 1 A
Input 1, 524VDC. If using a voltage
above 12VDC for a digital input, you
must use a 2.2K ohm resistor.
White
DIN 1 C
Brown
DIN 2 A
Input 1, 524VDC. If using a voltage
above 12VDC for a digital input, you
must use a 2.2K ohm resistor.
Blue
DIN 2 C
A
CTIVATE
THE
M
ETER
The ITrixxWFMN is designed to be integrated into existing equipment to monitor runtime. Installing your iTrixx will involve tapping
circuits on the equipment you intend to monitor.
The iTrixx Hour Meter has two separate hour counters. The hour counters may be activated in a number of different ways.
1. In the simplest setup the iTrixx may be activated whenever power is applied to the unit. In this case, if the iTrixx is on, it is
counting. A voltage threshold is provided so the iTrixx may stop counting as power is lost to prevent memory corruption. In this
way, you only need to connect the iTrixx to the same power source of the equipment you wish to collect running data, no other
wiring required.
2. You may also use one of the inputs to turn counting on and off. There are two digital inputs in the iTrixx. The digital inputs
allow iTrixx to detect an external on/off state of a sensor.
To use the meter on a mobile equipment, a constant 1248VDC power source from a battery, and a separate 548VDC circuit that
turns on and off with the vehicle. A constant power source is preferable to power your Wifi meter because it will always be on. If
the meter has to boot up when your equipment is powered on, you may not have an accurate reading. The WiFi meter at idle
draws approximately 70mA. It will not drain the battery unless it is left for an exceptionally long time.
3. Alternatively, it can be configured to follow one of the relays such that when the relay is activated the iTrixx will count (for
iTrixxWFMNADi unit only). The relays on the iTrixxWFMNADi are dry contact relays and normally open.
Most common use case is to wire a digital input to the same power source of your iTrixx Server to trigger the meter, so when your
equipment is on, iTrixx is counting.
M
AKE
C
ONNECTIONS
Relay Connection (iTrixxWFMNADi)
Your iTrixxWFMNADi server has two 5VDC relay outputs. These relays are limited to a 5V signal and are prewired to the outside of
the enclosure. There are 3 positions on the terminal NO (Normally Open), C (Common), and NC (Normally Closed).
Additionally, there is a switch for each relay on the board. For a dry contact relay, push the switch to the right, to drive a 5VDC
signal, push the switch to the left. (See Board Layout Reference section to locate the relay output wires).
A note of CAUTION: These units are ground isolated. Always connect so that power loop is only connected to theiTrixx unit. Do
NOT use external ground connections. Doing so may damage the SERVER or POE originating device.
Digital Inputs Connection
iTrixx servers have 2 digital inputs (524VDC) builtin to the board. The digital inputs allow the SERVER to detect an external on/off
state of a sensor. With this information the SERVER can display whether an input is on or off, count events in a resettable or non
resettable counter, and calculate the frequency (such as for use as a tachometer) or the period of the input. See Board Reference
Layout page to locate the digital input wires. A circuit that switches on and off with your equipment can be wired to this digital input
to detect whether or not your machine is running. Note: If using a circuit above 12VDC you must include a 2.2k ohm resistor
between the tapped circuit and the iTrixx. The iTrixx will only detect a voltage on this circuit and will not draw any power or interfere
with this circuit. Do NOT exceed 24VDC on your digital input. Once wired, see the section Setup Triggers to trigger the hour
counter or set up notifications. For how to use a resistor for the digital input, please refer to the diagram below:
There are two modes of operation for the digital inputs: ISOLATED and PULL UP. These are set at the factory to PULL UP by
default.
1) ISOLATED mode allows you to directly drive the iTrixx’s optoisolator with an external voltage though an internal 1K
resistor. This voltage may be in the range of 5VDC to 24VDC supplying a minimum of 2mA or a maximum of 30mA to the
optoisolator diode. There is no other internal connection to this voltage so it is an isolated input. The DIN in this mode will
default to a Low state. To set this mode, move the DIN switch to the right (Towards center of board).
2) PULLUP mode connects a 1K resistor to an internal voltage allowing you to use a simple switch (such as a magnetic
door switch) across terminals 1 and 2. When the switch is activated a signal is sent to the input. These modes are selected
by the switch on the server (see the Board Layout for reference). The DIN in this mode will default to a High state. To
set this mode, move the DIN switch to the Left (Towards edge of board).
Caution: If you intend to use isolated mode, verify input switch is set to ISO before applying an external voltage. Doing otherwise
may damage the SERVER or POE originating device.
To wire your equipment to the iTrixx’s digital input, identify a circuit of 5 – 24VDC that switches on and off with your equipment.
Wire this to DIN 1 or DIN 2 on your iTrixx.
Analog Inputs Connection (iTrixxWFMNADi)
The analog inputs allow the SERVER to read the value of external equipment. iTrixxWFMNADi has 2 analog inputs (5v 420mA) built
in to the board. The 2 analog input wires are connected to nonisolated 05V current sensors which may be connected to a variety of
devices such as temperature or pressure sensors. The SERVER provides a ground and power connection so that measurements can
be made without external voltage references. You should use a sensor that is isolated so that the it makes no connection to a remote
ground. This information can be set to trigger a notification. There are 3 wires for each analog input, see Board Reference Layout
page to locate the analog input wires.
A note of CAUTION: These units are ground isolated. Always connect so that power loop is only connected to the iTrixx unit. Do
NOT use external ground connections. Doing so may damage the SERVER or POE originating device.
Once you are finished wiring the iTrixx to your equipment, you may then power on your equipment or reconnect the vehicle’s battery
and configure your device.
