Gasboy FuelOmat system 8 Popt Commverter - Manual (Page 40)

 Jumpers J1, J4 installed; (for old PCBs J3, J6 also installed)
for 45 mA (default) consumption
 Jumpers J1, J4 not installed; (for old PCBs J3, J6 also not
installed) for 20 mA consumption
Figure 2-15. Current Loop Module Jumpers
2.7.4. Current Loop Electronic Devices (Pump or any Current Loop Devices)
The wiring for the Current Loop electronic pump is provided as follows:
Figure 2-18 shows the specific wiring connections between the 8 Port Current Loop card
and Current Loop pumps. Figure 2-16 and Figure 2-17 show the connection between two
Current Loop twin-pumps and the Terminal Block: In cases where connecting twin pumps
on a single cluster (module channel), set each pump with a different head number. If
connecting each twin pump on dedicated cluster, there is no need to reprogram the pump.
Pumps with identical Head number cannot be connected to the same Cluster.
8 Port CommVerter Operation and Installation Manual 36