DDC2 / 4-RS Wiring

Digital Display Wall Clock Guide

Page 42

3-Wire Minute Impulse (44th Minute)

 

H

 

 

M

 

115VAC

GRND

BLK

Local

AC IN

 

Power

AC RTN

 

24VDC

A

 

From

B

 

Master Clock

C

 

Clock must be set within 20 minutes of actual time for master to synchronize. Use of a 9Volt alkaline battery is recommended to avoid resets after power failures.

BLK

YEL / WHT

VIO / WHT

BRN / 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

Page 48
Image 48
Lathem DDC2, DDC4 manual Blk Yel / Wht Vio / Wht Brn / Wht, Wire Minute Impulse 44th Minute