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Int oduction
The AirTime AT-DDC Wireless Digital Dis lay Wall Clock is designed with
a 4-inch red LED dis lay that can be viewed from distances over 100
feet. The bright red dis lay shows the hour and minutes and can be
configured for a 12 or 24 Hour format.
The AT-DDC Wall Clock is synchronized by a Lathem ATX series
transceiver’s wireless correction signal.
The AT-DDC Wall Clock can be mounted directly to a wall, to a single
gang outlet box or, with o tional mounting kits, as double-faced units
from the wall or ceiling.
Clock Ope ation
When the AT-DDC Wall Clock is connected to 110vAC ower, the clock
dis lays 12:00 AM and begins listening for a signal from an ATX series
transceiver. U on rece tion of the AirTime signal, (verified by a red
LED flashing in the lower right corner), the clock will adjust to the
correct time. The clock will continue to listen and correct itself as
needed.
Powe Co d Installation
A 3 wire grounded ower cord is required. If the ower cord will not be
in conduit, secure the ower cord with a cable clam into the selected
vent ca .
Remove the two hilli s head screws from the left or the right end ca
and remove. Slide the circuit board out of the case. Carefully fli the
circuit board over and lay it face down on a clean, smooth work
surface. Remove one of the vent ca s from the case of the wall clock
and route the ower cord through it to the back of the circuit board. (If
the ower cord will be routed through the back of the clock using
conduit, route the cord through the gang box and conduit access hole
to the back of the circuit board assembly). Stri away 1/2" of the
rotective shield from each wire of the ower cord. Locate the two
black wires leading from the back of the circuit board. Using wire nuts,
attach the AC In line of the cord to one and the AC Return line to the
other (normally black is AC In and white is AC Return). Attach the
ground wire of the cord, (normally green) to the green ground screw
located on the inside back of the case. Slide the circuit board back into
the case, re lace the end ca and secure with the two hilli s head
screws.
