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Pump Control I/O PCB
pulser being used for each pump position. Use the following table to determine your settings.
K1 to K4 jumpers must be set in the configurations shown below before turning on power to the
PCU or damage to the system components may occur.
Jumper
VR Reed Switch Pulser, 1871 Series
VR Electronic Pulser, 7671 Series
VR Totalizer Pulser,, 7874 Series
4
Debounce Configuration: Verify that the K5 jumper (debounce) is set properly per the
following table. The K5 jumper should remain jumpered for all Reed switch quantity pulsers
and unjumpered for all electronic and money pulsers.
Jumper
K5
K5
5
Replace the cover plate on the pump control I/O board and re-install the board into the card
cage.
Replace the five green connectors into the proper sockets on the front of the Pump Control I/O
6
board
Repeat all steps for both the EXPMUX Pump Control CPU and Pump Control I/O PCBs for
7
each pump control unit.
MDE-4319A TopKAT Fuel Managment System Installation Manual · November 2005
CAUTION
Pin
Function
P
Pulser signal input (sink)
1
+
No connection
2
G
DC ground for pulser
K1
P
Pulser signal input (sink)
1
+
+12 VDC supply voltage for pulser
2
G
DC ground for pulser
K1
P
Pulser signal input (sink)
1
+
Voltage for opto-isolator from pulser
2
G
DC ground for pulser
K1
Speed
Slow
Jumpered
Fast
Open
(Figure
7-10).
Function
10:1 quantity pulsers
10:1 money pulsers
All electronic pulsers
Mechanical PCU Option
Voltage
12 VDC square wave signal when pulsing
DC ground
12 VDC square wave signal when pulsing
+12 VDC
DC ground
Square wave signal when pulsing
Voltage level of pulser
DC ground
Page 87
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