Caution – Gasboy CFN Series Site Controller III Start-up User Manual
Page 52

Jumpers and Switch Settings
PCU
Page 46 MDE-4793A CFN Series Site Controller III Start-up Manual for CFN III Versions 3.5 and above · November 2008
3
Pulse Connection: Verify if the K1 through K4 jumpers (pulse type jumpers) match the type
pulser being used for each pump position. Use the table below to determine your settings.
K1 to K4 jumpers must be set in the configurations shown before turning on power
to the PCU or damage to the system components may occur.
CAUTION
Jumper
Pin
Function
Voltage
VR Reed Switch Pulser, 1871 Series
P
Pulser signal input (sink)
12 VDC signal when pulsing
+
No connection
G
DC ground for pulser
DC ground
VR Electronic Pulser, 7871 Series
P
Pulser signal input (sink)
12 VDC signal when pulsing
+
+12 VDC supply voltage for pulser
+12 VDC
G
DC ground for pulser
DC ground
VR Totalizer Pulser, 7874 Series
P
Pulser signal input (sink)
Signal when pulsing
+
Voltage for opto-isolator from pulser
Voltage level of pulser
G
DC ground for pulser
DC ground
4
Debounce Configuration: Verify if the K5 jumper (debounce) is set properly. The K5 jumper
should remain jumpered for all Reed switch quantity pulsers and unjumpered for all electronic
and money pulsers.
Jumper
Speed
Function
K5 Jumpered
Slow
10:1 quantity pulsers
K5 Open
Fast
10:1 money pulsers
All electronic pulsers
5
Replace the cover plate on the pump control I/O board and re-install the board into the card
cage.
6
Replace the five green connectors into the proper sockets on the front of the Pump Control I/O
board.
7
Repeat all steps for both the EXPMUX Pump Control CPU and Pump Control I/O PCBs for
each PCU.
K1
1
2
K1
1
2
K1
1
2