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Chapter 5 – Reference
Pause biCoder
The BL-5402 is a biCoder which connects directly to the two-wire, and provides a set of wires
that can be connected to a set of normally closed contacts. When the contacts open, a pause
condition is sensed by the controller and the associated programs move to a paused state for a
specified amount of time.
Pause Button
The BL-5401 is an outside mountable box with a push button and
light. This can be used to pause the watering program and is
sometimes referred to as a coach’s button. This pause button allows
him to stop the watering during a practice without the use of a
baseball bat.
Valve biCoders
Field biCoders
Field biCoders come in three configurations:
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

BL-5201 – 1-valve direct bury biCoder
BL-5202 – 2-valve direct bury biCoder
BL-5204 – 4-valve direct bury biCoder
These valve biCoders attach directly to the two-wire and are capable of activating standard 24
VAC valves (solenoids). The measure the voltage and current delivered to the solenoid and
communicate these values back to the controller. If a solenoid
becomes shorted, the biCoder will automatically deactivate so as
to not cause an excessive current draw on the two-wire that
could affect other devices.
They have internal surge protection and have a have a two-wire
clamping circuit that will short the two-wire when it detects a
very high surge (such as lightning induced) to help protect other
electrical devices connected to the two-wire path.
Powered biCoders
Baseline powered biCoders are available in a number of configurations, both in valve count and
in cabinet options. The basic component is either a 12 or 24 zone printed circuit board. This
board communicates with the BaseStation 3200 controller over the two-wire path, but receives
its power from a separate 24 VAC
transformer. This board level biCoder is
available in a standalone cabinet, or it
can be built into the BL-3200X series
controller. This biCoder uses
conventional valve wiring – each valve
has a direct wire to the biCoder as well
as a shared common wire.
These powered biCoders work very well
for retrofit projects where existing valve
wires are already in use and are of good
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Baseline 3200