User manual DALLEE ELECTRONICS CROSSING GATE BELL

[. . . ] DO NOT unplug and re-plug the speaker connection, or any other connection, while the sound unit is POWERED (ON) - this can damage sensitive components!Input power can be from 14 to 20 volts AC however it is suggested that you not exceed 16 volts AC particularly if you intend to drive a 12 volt DC relay (such as DALLEE ITEM 555) from the "on" output. The AC input power is connected to terminals labeled "AC" or "6" and "7". The total load of the four outputs must not exceed 4 amperes so you may wish to install a 4 ampere fuse in the input connections as a safety measure. [. . . ] A 3" hole could also be made a long the edge of a mountain or skirt to hold the speaker. In some cases it is not necessary to enclose the back of the speaker since the surrounding building / mountain would act as a proper baffle. The speaker has two terminals that need to connect to the flying leads from the two pin connector. Since speakers are mounted at different locations, wire INSTALLATION & OPERATING INSTRUCTIONS: In the upper right corner of the circuit board, just below the mounting stand off, you will find a block of four mini-rocker switches which control variations in the operating characteristics of the GRADE CROSSING 1 CONTROLLER. The upper switch "4" selects the momentary mode in the "on" position and is used where twin coil solenoids must be activated. The next lower switch "3" selects the delayed bell feature. In the "off" position the bell rings simultaneously with lamp illumination. With this switch "on" the bell ring follows the lamp illumination. The remaining two switches "1" and "2" are used to select ring rates. The slowest rate is selected with both switches "off". Pick your location on the layout and mount the circuit board and the speaker. As information, a styrofoam cup (coffee cup) makes an excellent mounting and sound chamber for the speaker. Connect your AC power (14-20 volts, 16 preferred) to terminals 6 & 7. If manual operation is to be used connect an on-off switch between terminals 5 & 8 or for automatic operation insulate a rail section and wire through the sense coil. Remember that the GRADE CROSSING CONTROLLER will be "on" when ever something (locomotive or lighted car) is drawing current in the insulated rail section. You can adjust how long the controller is "on" by changing the length of the insulated rail section. With the GRADE CROSSING CONTROLLER "on" the bell will now ring. Use the volume control to set an adequate level for your layout and use the two lower rocker switches to select a ring rate that suits your preference. Remember that as you turn the switches "on" the rate increases. You have a choice of four rates as follows: "1" "1" "1" "1" off, off, on, on, "2" "2" "2" "2" off on off on = = = = slowest next next fastest. allowing the gate to go back up. If your gates are actuated by a twin coil solenoid you must wire the pull down coil to terminal 3 and the push up coil to terminal 4 AND YOU MUST SELECT THE MOMENTARY MODE BY PLACING ROCKER SWITCH #4 TO THE "ON" POSITION. The common of the coils is also wired to common terminal 5. [. . . ] (a 12VPS is required for the OPTO-DT) 2 Insulating GAP AC input of 16 volts recommended. Please remember that you do need an input supply current slightly greater than your total load current (amps). If you are not sure and would like to fuse your input power (so as to not damage the unit) then we suggest using a 4 ampere fuse in series with one input power lead. It is suggested to wire nut a group of wires to one wire, thus only placing one wire into the common connector. TERMINAL STRIP CONNECTIONS: 1 2 3 4 5 6 7 8 CROSSBUCK LAMP #1 CROSSBUCK LAMP #2 CROSSING GATE / DOWN COIL WARMING FIRE / UP COIL COMMON CONNECTIONS AC INPUT TERMINAL AC INPUT TERMINAL MANUAL ACTIVATION SWITCH. ACTIVATION SECTION install wires by stripping insulation back 3/16", place wire in hole, run screw down to clamp in position. GRADE CROSSING CONTROLLER with BELL SOUND installation drawing - rev 2 POWER JUMPER WIRE 87654321 use #6 wood screws to secure PC board at desired location Speaker connector Volume control CURRENT SENSE WIRE Sense Coil pass current sense wire through hole in sense coil. [. . . ]