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Page 33 Digital Display Wall Clock Guide DDC2 / 4-RS Wiring
Standard Electric AR-3 3-Wire Minute Impulse
To
Other Clocks
24VDC / 48VDC
From
Master Clock
115VAC
Local
Power
O
P
E
N
1
2
3
4
5
6
7
8
Set switches 1-5 of S1 as shown.
Indicates depressed side of switch
BRN/ WHT
24 VDC Pulse
Common
YEL / WHT
48 VDC Correction
GRND
AC IN
AC RTN
BLK
BLK
VIO / WHT
H
M
Clock must be set to actual time. Use of a 9Volt
alkaline battery is recommended to avoid resets
after power failures.