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DDC2 / 4-RS Wiring Digital Display Wall Clock Guide Page 22
3-Wire Synchronous (115VAC)
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
Wiring applies to secondary wall clocks such as:
Lathem type SS Cincinnati D10 IBM 77 Series
Simplex 77 Series, 93-9, 91-9, 941-9, 943-9
Stromberg 3000
To
Other Clocks
115VAC
From
Master Clock
H
M
BLU / WHT
Run
Correction
BRN / WHT
BLK
BLK
AC Return
Clock will correct minutes hourly at HH:59 and
hour and minutes twice daily at 5:59.