Gasboy TopKAT Operation Manual - Manual (Page 22)

System Overview Communications
Page 14 MDE-4338A TopKAT™ Fuel Management System Operation Manual · February 2009
JP3 and JP4 set the delay time used by leak detectors in submersible pump applications. The
delay time is the period between activation of the submersible pump and activation of the slow
flow valve. Set this time according to the type of leak detector installed on the submersible
pump to allow a normal leak test for each transaction. The delay time should be set to 0
seconds for suction pumps.
JP7 should be open for normal operation. When closed, this switch enables the reset of
electronic totalizers.
JP8 is available only with 9800 software, version 5.3 or higher. Switch 1-8 is set to Closed to
disable RS485 pump stop detection. This is necessary because the TopKAT operates in a half-
duplex configuration and it is possible for the 98xx to detect a false break character when the
half duplex lines switch from receive mode to transmit mode and vice-versa. These random
false break characters will cause the 98xx to terminate the transaction.
SW2-1 through SW2-4
(Only on M06333KXXXX CPU)
Function Setting
Address 1 All Closed
SW2-5 and SW2-6 - Unit of Measure Selection
(Only on M06333KXXXX CPU)
These two switches set the unit of measure (US gallons, liters, or Imperial gallons) that the
pump/dispenser will be using to meter fuel.
Unit of Measure SW2-5 SW2-6
US Gallons Closed Closed
Liters Open Closed
Imperial Gallons Closed Open
NOT USED (default US Gallons) Open Open
SW2-7 - Electro-mechanical Totalizer Enable
(Only on M06333KXXXX CPU)
This switch is only used on K model dispensers/pumps (excluding the 9850K model). When
closed (“On”), it enables the pump/dispenser to drive electro-mechanical totalizers used on
some K pump models. On A and Q models, this switch is ignored.
EM Totalizer SW2-7
Enabled Closed
Disabled Open
SW1-8 JP8 RS-485 Pump Stop Detection
Disabled Closed
N/A JP9 Not used N/A
Switch SW1/Jumper Function Setting
Old CPU
New CPU
(M06333KXXXX)