Specifications
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APPENDIX I. WIRING DIAGRAMS
The SST-4 can be wired in various ways for a variety of engine control applications. This section
includes wiring diagram for three common congurations:
Aux E-Power Battery. Emergency Power is provided from an Auxiliary Battery.
Programming state would include “C4”.
No Aux E-Power Battery. Emergency Power is provided from normal battery (there is no
Auxiliary Battery) and E-power control is from Start/Stop or Throttle signals. Programming
state would include “C1” or “C2”.
No Aux E-Power Battery, simplied. Fully ignition supplied. Emergency Power is provided
from normal battery (there is no Auxiliary Battery) and E-power control is from Start/Stop
or Throttle signals. Programming state would include “C1” or “C2”.
1.
2.
3.
1 2 3 4 5 6 7
TB1
6
3
J1
4
1
4 34 3
1
T1
2
T2
2 1
J1 INPUTS TBI T1 T2
PIN FUNCTION TSP FUNCTION PIN FUNCTION PIN FUNCTION
1 PRESSURE 1 GROUND 1 RLY1 NORM.CLOSED 1 RLY2 NORM.CLOSED
2 AUX TRIG 2 START OUT 2 RLY1 NORM.OPEN 2 RLY2 NORM.OPEN
3 MASTER 3 MAIN POWER (VBAT) 3 RLY1 NORM.CLOSED 3 RLY2 NORM.CLOSED
4 THROTTLE 4 AUX IN 4 RLY1 NORM.OPEN 4 RLY2 NORM.OPEN
5 START/STOP 5 AUX OUT
6 GROUND 6 IGNITION IN
7 IGNITION OUT
The Auxiliary (AUX), Throttle (TH), and Start/Stop (SS) are input triggers that are provided by
supplying either a positive signal (+12V) or ground signal.
Emergency Power operation: If using a separate E-Power Battery, the circuit breaker for the AUX
relay on the SST-4 must be connected between the J6 and J5 female push-on connectors. If a
separate E-Power battery is NOT being used, the circuit breaker must be connected between the J6
and J7 connectors. See Figure 2 for connection locations.
1.
2.
Connection Notes