This is the "Synchronizer" template. It should be called in the following format:
{{Synchronizer |BB Synchronizer Synchronizer= |BB Synchronizer In 1= |BB Synchronizer In 2= |BB Synchronizer In 3= |BB Synchronizer In 4= |BB Synchronizer Out 1= |BB Synchronizer Out 2= |BB Synchronizer Out 3= |BB Synchronizer Out 4= }}
Edit the page to see the template text.