26 Forecourt Controller Interface Installation Guide
August 11, 2016
Connecting to RS485 Boards
Note: At sites with Tokheim and Bennett, all of the drain or ground wires are
tied together to a single wire connected to chassis ground using a wire
nut as shown below.
The RS485 board has eight connector blocks, which can support up to 16 fueling
points with two DCR wires connected to each block, or up to 32 fueling points
with four wires connected to each block.
1. Unplug the required number of connector blocks for the number of
dispenser points.
Single Wire
Chassis Ground
Drain/Ground Wires