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10/25/2016 - DOCUMENT NUMBER: 10-2500
© 2016 AEM Performance Electronics
AQ-1 DATA LOGGER
·
Injector Duty Cycle
·
Boost Control Solenoid
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...and many more!
THIS INPUT ONLY ACCEPTS CLEAN DC SQUARE WAVE SIGNALS. DAMAGE TO THE
LOGGER IS LIKELY TO OCCUR WHEN DIRECTLY CONNECTED TO COILS OR MAGNETIC
SENSORS.
Engine Speed / Tachometer (RPM) / Vehicle Speed Sensor (VSS) / Hall Effect Sensor
The use of a tach adapter such as the MSD “Tach Signal GMR Pickup” Part Number #8918 is usually required when
attempting to log engine rpm from high-voltage noisy sources.
Injector Duty Cycle / Boost Control Solenoid
Solenoids are typically two wire devices where 1) one wire is connected to battery voltage and the 2) second wire is
connected to a low-side output of an ECU or controller -- wire 2) should be connected to this input for the purposes of
logging.
Wiring: Digital Input 1 - 3
This class of inputs is suitable for logging the output from "switched to ground" digital signals with a maximum voltage of
16V.
Typical Automotive Digital Signals
·
Clutch Switch
·
Brake Switch
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Cooling Fan Switch
·
Nitrous Solenoid
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Transmission Shift Solenoid (non-pulsed)
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Driver operated start/stop switch
·
...and many more!
Solenoids are typically two wire devices where 1) one wire is connected to battery voltage and the 2) second wire is
connected to a low-side output of an ECU or controller or ground -- wire 2) should be connected to this input for the
purposes of logging.
A start/stop switch typically has two terminals where 1) is to be connected to the logger and 2) is connected to ground.
Important Note:
These inputs are not intended for use with solenoids or signal sources that are pulsed with a (high)
frequency for the purposes of control or feedback.
Wiring: Serial/GPS
This input is only compatible with the AEM EMS Series 1/2 serial telemetry output or a serial (RS-232) NMEA0183 GPS
receiver.
AEM EMS Series 1 / 2 Serial Telemetry
The 30-2906-96 or 30-2907-96 AQ-1 Harness comes with the appropriately wired DB9 connector that can simply be
plugged into the Series 1 or 2 EMS.
The following connections should be made if constructing your own harness.
Series 1 or 2 EMS / GPS
AQ-1 Logger
Serial Tx - DB9 Pin3
Serial Rx - Pin 17
Serial Rx - DB9 Pin 2
Serial Tx - Pin 16
Gnd - DB9 Pin 5
Gnd - Pin 18
GPS Receiver - NMEA0183 RS-232 Serial
The following Garmin GPS receivers have been validated for use with the AQ-1
·
Garmin GPS 18x PC – 1 Hz model with DB9 connector and 12 volt power adapter - The 30-2906-96 AQ-1 Harness
comes with the appropriately wired DB9 connector that can simply be plugged into the Garmin GPS 18x PC.
·
Garmin GPS18x 5Hz- 5 Hz OEM model - This unit will require wiring; please refer to Garmin documentation and the
following pinout.
