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Digital Display Wall Clock Guide
DDC2 / 4-RS Wiring
Standard Electric AR-2A 2-Wire Dual Voltage
B
R
N
/
W
H
T
GRND
AC IN
AC RTN
AB
PC
Y
E
L
/
W
H
T
B
L
K
B
L
K
To
Other Clocks
24VDC / 48VDC
From
Master Clock
115VAC
Local
Power
OPEN
1
2
3
4
5
6
7
8
Set switches 1-5 of S1 as shown.
Indicates depressed side of switch
H
M
Clock must be set to actual time. Use of a 9Volt
alkaline battery is recommended to avoid resets
after power failures.
