1st Switch is a Disable/Enable Rocker Switch

With this switch it is possible to turn off bell circuit without unplugging timer , this can be used when bell is to be turned off for extended periods such as summer holidays or plant shutdown

2nd Switch is a Momentary Manual Override

This push button switch is used to ring the bell or horn anytime outside of the preprogrammed times, good for manual ringing of bells

Figure 2 "DRY" contact closure

Figure 3 External Power For Signals

Figure 4 External Switching For High Amp Loads