Installation & Operation Manual
5 External Connections and Interfaces
5.1 External Connection
External connection will require the user to make a connection from the clock's internal relay to an external system. The
Time Machines Clock alarm closes an internal relay. The pinout of the connector is as follows:
ILLUSTRATION: Connector for Relay
Pin 1: Approxi12V maximum current of 50mA
Pin 2: Relay Normally Open
Pin 3: Relay Common
Pin 4: Relay Normally Closed
Pin 5: Ground
Small, low power piezo buzzers or lights can be driven directly from the clocks power supply. For larger loads, an
intermediate relay is recommended.
*NOTE: This connector is not provided with purchase. If you are interested in information on obtaining this part contact Time
Machines. (techsupport@css-design.com)
5.2 Push Button
5.2.1 Changing the Time Zone
Using the push button provides a quick way to set the time zone with
out having to access the configuration web page. With every push of the button the GMT offset decreases by 1. Since the
default offset is -6, pushing the button once would set the offset to -7. Once the negative offset reaches its limit (-11) the
next offset is the maximum positive offset (14).
5.2.2 Scrolling the IP address
The push button also provides a quick way to determine the IP address of the TMPC. A rapid double push of the button
will cause the IP address to scroll across the display.
5.2.3 Set Parameters to Default
One way to set all parameters to their factory default values is to hold the button on the back of the clock down when the
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Time Machines by CSS | 6030 South 58th St., Suite C | Lincoln NE 68516
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