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9.3 Auxiliary inputs/outputs
8 x Configurable
Analogue or Digital
Inputs
(I1 to I8)
8* analogue or digital inputs can be configured to monitor any device that
generates a change in voltage. E.g. seat belts, headlights, refrigeration units,
temperature sensors, emergency lights, doors, PTO, UDS, trailer coupling etc.
Voltages are measured in the range of 0
– 38 volts in steps of approximately
0.15 volts. Inputs may be programmed to measure voltages between 0 and 5
volts in increments of approximately 0.02 volts.
* The eighth input (I8) is shared with the auxiliary frequency input (F4)
1 x Speed Input
1 x RPM Input
(F1 and F2)
F1 input can measure speed pulses. The input impedance is 100 kOhm.
F2 input can measure RPM pulses. The input impedance is 94 kOhm.
Speed and RPM calibration sensitivity is configurable.
Frequencies up to 17.5 kHz can be measured.
GPS Output (F3)
GPS NMEA TTL (0-5V) output (9600 baud)
Frequency Input (F4)
One auxiliary frequency input can be configured to monitor any device that
generates a change in frequency e.g. liquid flow measurement or as a pulse
counter e.g. electronic fuel consumption measurement (EDM). Frequencies of
up to 19 kHz can be measured.
* The auxiliary frequency input (F4) is shared with the eighth input (I8).
1 x Starter Interrupt
The FM 3617i/FM 3717i/FM 3817i has a dedicated starter interrupt. A relay
socket comes fitted to the main power harness for this purpose.
1 x RS232 Serial
Interface
This can be connected to any RS232 serial device using the FM300 Serial
Harness.
1 x TTL Serial Interface
The FM Terminal can be connected using the FM300 Serial Harness.
The FM Twin Serial Harness can be used to convert this to a standard RS232
port to connect a second serial device.
1 x CAN Interface
This can be connected to a J1939 CAN bus using the yellow / green twisted
wires on the main connector.
1 x J1708 Interface
This can be connected to a J1708 bus using the separately supplied yellow /
blue twisted wire.
1 x Positive Drive
Positive Drive output is used to power external devices at 2V below battery
voltage and can supply current up to 800 mA.
Output controlled by FM 3617i/FM 3717i/FM 3817i
and selected in “Vehicle
Properties” of front end user software.
