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To change the channel of the mini-master clock, press the On/Off button to power the unit on.
Then simultaneously press the Repeater Only and Transmit Time buttons, then release. The
indicator light will flicker momentarily and then go out. Next, press the Transmit Time button
equal to the desired channel number. Bypassing the Transmit Time button sets the channel to
zero (default). The indicator light will flash to acknowledge each button press. Next, press the
On/Off button to save the channel setting. The unit should immediately start operating in
repeater mode on the new channel. Setting the channel to 15 will cause the device to transmit
and receive on all channels. Repeaters and analog clocks always transmit and receive on all
channels.
Setting the mini-master channel to 16 will cause it to immediately start broadcasting simulated
GPS packets. The GPS packets will be off by the time zone offset and will not represent the
correct hour; although the minutes and seconds should normally be correct. Any further button
selections will cancel simulated GPS mode.
Digital Clock Installation
If the clock system is comprised entirely of digital clocks, the digital clock will receive and move
to the correct time (if it isn’t already there) as soon as power is applied. However, if the clock
network is comprised of a combination of digital and analog clocks, the complete network may
not be active until the analog clocks enable their respective radios. This occurs twice per day at
02:00 and 04:00. Digital clocks within range of the master clock or repeaters will move to the
correct time as soon as power is applied.
The Mini-Master clock can be used as a signal monitor to determine wireless coverage. First,
turn the unit on by pressing the blue On/Off button. Then, press the yellow Receive Only button.
The mini-master indicator light will blink with each time transmission from the master clock.
The master clock normally transmits every other second.
Digital clocks receive and repeat all radio transmissions to propagate the signal throughout the
facility.
The digital clocks are constructed using a sturdy aluminum frame with an anti-glare acrylic lens
and ABS back plate. Various mounting methods are available. The standard mounting method
consists of saw tooth hangers located on the back of the clock. Simply drive the appropriate
number of screws into the wall and hang the clock on the screws. Secure eyelet attachments are
also available where a more secure mount is required.
Wireless Relay / Audio Player / Tone Generator Installation
While the master clock includes alarm relay connections, the location of the alarm devices may
be some distance from the master clock. In this case, wireless alarm relays are available.
Wireless relays should be located within 150 feet of continuously active network transmissions.
