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Series 9800 Field Installation
Series 9800 to TopKAT Cabling
The interconnection of the 9800 to the TopKAT requires a single RS-485 communication
cable. See
Figure 8-3: RS-485 Communication Cable
Switch Settings
In order for the 9800 to communicate to the TopKAT via RS-485, the switch settings on the
9800 CPU must be as follows:
Switch
SW1-1
SW1-2
SW1-8
SW2-1 through SW2-4
Refer to Section 5 of one of the following for switch settings, access, and location:
• MDE-4340 Series 9800Q Pumps and Dispensers Installation/Operation Manual
• MDE-4341 Series 9800A Pumps and Dispensers Installation/Operation Manual
Page 112
"Communication Requirements" on page 21
Function
Baud Rate Switch
Mode Switch
RS-485 Pump Stop Detection
Address
MDE-4319A TopKAT Fuel Managment System Installation Manual · November 2005
Series 9800 to TopKAT Cabling
for wiring considerations.
Position/Setting
Open (9600 baud)
Open (on-line)
Closed (disabled)
Closed (address 1)
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