Lathem DDC4, DDC2 manual Grnd BLK, Ac Rtn, Blu, Wht, Wire Synchronous 24VAC

Page 23 Digital Display Wall Clock Guide DDC2 / 4-RS Wiring

3-Wire Synchronous (24VAC)

	H
	M
115VAC	GRND	BLK
Local	AC IN
Power	AC RTN
24VAC	Return
From	Correction
Master Clock

Clock will correct minutes hourly at HH:59 and hour and minutes twice daily at 5:59.

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

BLK	BRN	BLU
	/ WHT	/ WHT

To

Other Clocks

Set switches 1-5 of S1 as shown.

Indicates depressed side of switch

1 2 3 4 5 6 7 8

OPEN