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TTL PDI WIRING
The device is connected to the RED wire; a 47K Ω resistor is
necessary to supply the ground level to the device.
TO THE NITESTAR DMI
TELEPHONE-TYPE FLAT CABLE
(BLACK, 8 FT.)
MOUNT TERMINAL
BLOCK TO FENDER
WELL USING #6-32
METAL TAP SCREWS
250 volt
1 amp fuse
+ RED
- BLACK
POWER CABLE
TO TTL
DEVICE
(Jump to -Black to Battery)
12 V PDI CONNECTION
See P/N 1050 Manual.
SETTING PDI DISTANCE
STEP 1 : Set the measurement units, (feet,miles or KM), you wish
to use for your PDI distance. Even though the default "1"
appears, you must re-enter the required PDI Distance number and
press MARK/ENTR.
STEP 2 : Next, press the following keys: 8PDI key, 2UNIT key
(DISTANCE), MARK/ENTR key.
CABLE FRONT VIEW
1 2 3 4
NITESTAR FUNCTIONS
PIN 1
= BLACK
= GROUND
PIN 2
= RED
= PDI (5V SIGNAL)
PIN 3
= GREEN
= SIGNAL IN
PIN 4
= YELLOW
= +12v DC
WIRE DIRECTLY TO
12 VOLT VEHICLE
BATTERY (CONNECT LAST)
SENSOR
ELECTRONIC
TTL PDI
INTERFACE SENSOR
or the
WIRING
TRANSMISSION
INTERFACE SENSOR
DIAGRAM
(i.e. feet/miles/kilos between pulses)
20
SETTING PDI DURATION
STEP 1 : Press the following keys: 8PDI key, 3PD key (number
of milliseconds), MARK/ENTR key. 1000 mill-secs = 1 sec.
STEP 2 : Remember, depending on your PDI distance, if your pul
es are too long they can run together at high speeds. If you use
pulses of less than 10 milliseconds duration then this should not
happen at normal highway speeds. If you need longer pulses use
the following formula to find what your absolute maximum speed
will be.
SPEED = (PDI Length) * 1000/ (PDI Time in milliseconds)
This speed will be in Length/second units and use your standard
conversion factors to change to KPH or MPH
For feet/second -> MPH multiply by 0.6818
For kilometers/sec -> KPH multiply by 3600
SETTING PDI DURATION (DISTANCE)
STEP 1 : Press the following keys:
8PDI key, 3PD key, DISP/HOLD key, (DISTANCE) MARK/ENTR key.
(TIME = milliseconds the pulse is ON)
(i.e. feet/miles/kilos pulse is ON)
21
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