The Cycle Timer
Owners Manual
A diagram of the PCT circuit board is shown below. Take note of the indicated connectors, switches, and indicator
lamps. Other sections of this manual will direct the customer to wire to these connectors, set dip switch options,
and observe indicator lamp behavior. If you are having difficulty locating a referenced connector, switch, or lamp,
referring back to this page may help you locate it.
Most of the electrical connections to the PCT are available on both a customer connector, and a factory connector.
Customer connectors provide simple screw terminal termination for 22 to 16 gage wires for use by the customer.
Factory connectors provide crimped pin termination for 20 gage wires. The primary purpose of the factory
connectors is to provide American LED-gible with an alternate location to terminate factory installed wiring that will
not consume customer screw terminals.
Indicator lamps provide real time feedback on the status of the PCT to aid debugging problems. The power
indicator lamp illuminates when power is applied to the PCT. The TXD, RXD, and ENB lights blink during serial
communications, and the remaining lamps illuminate when the associated logic input is activated.
Page 4
120VAC Relay Outputs Connector
Firmware EPROM in Socket
Configuration Dip Switch Blocks
DC Sink Relay Outputs Connector
Factory 120VAC Power Connector
Customer 120VAC Power Connector
Keypad Connector
Example Dip Switch Settings
Serial Port Status Indicator Lamps
Factory Serial Port Connector
Customer Serial Port Connector
Factory Logic Input Connector
Customer Logic Input Connector
Inputs Status
Indicator Lamps