Bring your traffic signal to life with this traffic-controller / sequencer circuit board. This circuit boards has 5 outputs: GREEN, YELLOW, RED, WALK, DON'T-WALK

Each lights timing can be set differently, with a possible range of 1/4 second to 25 minutes PER LIGHT.  Connecting the CAUTION INPUT screw terminals together engages 1 of 4 user-selectable CAUTION MODES.  Removing the connection will return the board to normal sequence operation.  There is a user replaceable fuse.  Fuse type is GMA 2 Amp 125/250VAC available from any local electronic store.


Sequence of operation:

Timing duration for each step is fully adjustable / settable, from 1 sec. to 10 minutes.

Step 1: The units starts off with WALK green output ON as well as signal green on

Step 2: walk green turns off, DON'T WALK red starts flashing (signal is still green)

Step 3: Signal turns YELLOW, and DON'T WALK red goes solid (both occur at the same time)

Step 4: Signal turns RED, DON'T WALK red is still solid.

Cycle to Step 1 (for a single board)
   

If TWO (or more)  boards are linked:

After step 4's timing cycle is complete, it sends a signal to BOARD #2 (or next board) through the LINK CONNECTION to begin it's 4 cycles.

Once BOARD #2 (or last board in chain) completes it's four steps, it sends a signal back to BOARD #1 through the same LINK CONNECTION to start it's 4 steps all over again, and the entire cycle repeats.