Some of the many different types of bells, and various ways of controlling them are suggested in the table below. Just remember that no matter what the job or conditions, you can probably find a bell or buzzer and controls that suit your need.
| SOME TYPICAL JOBS FOR BELLS & BUZZERS | ||||
|---|---|---|---|---|
| Job | Type of bell or buzzer | Number and location of bells and buzzers | Type of control | Number and location of controls |
| Summon others to the telephone | In the house— small to medium buzzers In outbuildings— medium to large bells Outdoors— large weatherproof bell All transformer-powered | Enough to cover all usual work locations | Push-buttons | One at the telephone and each extension phone |
| Notify club member that car is at his produce stand | Medium to large bell— transformer-powered | One may be enough—if mounted on the back of the stand | Hose diaphragm (Complete driveway units including control, are available, ready to plug in.) | One—in the driveway |
| Warn of power failure to incubator or brooder | Battery-powered buzzer, medium size | One near the poultryman's bedroom | Relay, held open as long as power is on, closed by spring if interruption occurs | One, at main switch of hatchery or brooder house |
| Warn of dangerously warm temperature in freezer | Battery-powered buzzer, medium size | One, in or near the kitchen | Temperature detector (sensitive thermostat) | One, with bulb inside freezer |
How to Plan Your System
To save your time and steps when the telephone rings for someone else in your family who is some distance away, you can install a simple bell or buzzer system to summon that person.
First, you must plan what you are going to do. On a large sheet of paper, draw to scale (roughly) a plan of your house and grounds, including those places where phones are located. It will help if you rule off your paper in 1/8" or 1/4" squares and let each square equal one foot. Show the location of poles supporting your wiring.
Next, pick out those areas where you or others would likely be when someone else would answer the phone and want to call you to it.
After you have thought about this, and talked it over with members of your family, show locations on your plan where you think you would like to have buzzers or bells, and show a button beside each telephone. (Generally, you should have a bell or buzzer near each phone, also.)
Figure 3 shows diagrams of various types of systems, and will help you determine the number of wires you will have to install to connect the buttons and bells that you have planned.
Inside, you will connect your transformer and the various buttons and bells with ordinary indoor bell wire. Outdoors, however, you should use weatherproof 2-wire or 3-wire telephone twist.
Show on your plan the distances that must be traversed by each type of wire, and show the number of conductors in each. Don't overlook the vertical distances (one floor to another).