DDC2 / 4-RS Wiring

Digital Display Wall Clock Guide

Page 38

2-Wire Pulse Alternating (24VDC)

H

M

115VAC

GRND

BLK

BLK

Local

AC IN

 

 

Power

AC RTN

 

 

24VDC

A

 

 

From

B

 

 

Master Clock

 

 

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.

VIO / WHT

YEL / 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 44
Image 44
Lathem DDC2, DDC4 manual Vio / Wht Yel / Wht, Wire Pulse Alternating 24VDC