Appendix; Connecting External Signal Devices (Bells & Horns) - Acroprint ATR240 User Manual

Connecting External Signal Devices (Bells & Horns)
The connections for an external signal device (bells, horns, buzzers, chimes, etc.), are
made via a 2-wire Green terminal block on the back of the clock above the power jack.
Connections are made by pressing the orange wire release tabs below each wire hole,
fully inserting the wire and releasing the clip. Gently pull on the wires to make sure they
are firmly secured in the terminal block.
In order to use a bell or horn a relay is required. Please call Acroprint or your Dealer to
order the relay (PN 01-0230-000).
When a signal is activated by the clock the internal contacts of the relay close and
complete the circuit. These internal contacts are "dry" and supply no voltage. Voltage
applied to these contacts must not exceed 30 volts. The relay then activates the 120v
external signal device such as:
65-0103-000 "Grille Horn"
65-0104-000 "4-1/4" Bell"
65-0105-000 "8" Bell"
For more information about connecting an external signal device using a relay go to
Under "Time Clocks & Document Stamps" click on "ATR240 Time Clock" and download
06-0346-000 "Connecting an External Signal Device."

Appendix

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