Gasboy 9800A Series - Manual (Page 10)

GASBOY Series 9800A
2-2 03/07/03
DC Junction Box
Pulser - When the dispensing unit includes the optional pulser interface, a pulser output is
provided. This pulser output provides a DC output to indicate the quantity dispensed. This is an
open collector output. A DC ground line from the monitoring equipment should be connected to
the DC ground line provided from the electronic register. This output can sink up to 100 milliamps
DC at voltages up to 24 VDC. The pulse rate can be configured by a sealable DIP switch for
rates of 1, 10, 100, 250, 500, or 1000 pulses per unit (gallons) or 1, 10, 100, or 250 pulses per
unit (liters). This output should only be used when monitoring of the dispenser’s operation is
desired. An additional output is provided for a twin. These lines must be capped when not in
use.
RS-485
When the dispensing unit includes the optional RS-485 interface, RS-485 lines are provided.
This interface allows the user to connect a GASBOY CFN Series System directly to the Series
9800A dispensing unit. These lines must be capped when not in use.