Gasboy CFN Site Controller - Manual (Page 65)

Pump Interface Manual v1.3 Pump Control Unit 57
03/20/03 Gasboy CFN Series
Jumpers
K1-K4 power pulsers 1-4.
For pulsers with mechanical switch closures (such as VR 1871 series):
For electronic pulsers requiring +12 Volt power (such as VR 7671 series):
For pulsers with an external power supply (such as VR 7874 series):
Note: If V/R totalizers brackets are present, the I/O PCB must be jumpered correctly or damage
will occur to the I/O.
Jumper Position Position Default
K1-K4 (see below)
K-5 in=low speed
main pulsers out=high speed
main pulsers out