Block wiring figure amphenol alarm takes half each only 832a guide 66-block re-wiring guide Block semaphore lionel signal
#587 Block Signal
#588 semaphore block signal
Signal block operating accessories flyer american
#587 block signal#588 semaphore block signal 66 block wiring diagram66-block re-wiring guide.
Signal block semaphoreBlock 66 wiring diagram straight figure termination instructions 864a alarms number .
