MDE-4319A TopKAT Fuel Managment System Installation Manual · November 2005
Page 87
Pump Control I/O PCB
Mechanical PCU Option
pulser being used for each pump position. Use the following table to determine your settings.
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.
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 pump control unit.
Jumper
Pin
Function
Voltage
VR Reed Switch Pulser, 1871 Series
P
Pulser signal input (sink)
12 VDC square wave signal when pulsing
+
No connection
G
DC ground for pulser
DC ground
VR Electronic Pulser, 7671 Series
P
Pulser signal input (sink)
12 VDC square wave 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)
Square wave signal when pulsing
+
Voltage for opto-isolator from pulser
Voltage level of pulser
G
DC ground for pulser
DC ground
Jumper
Speed
Function
K5 Jumpered
Slow
10:1 quantity pulsers
K5 Open
Fast
10:1 money pulsers
All electronic pulsers
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.
CAUTION
K1
1
2
K1
1
2
K1
1
2
