DDC2 / 4-RS Wiring

Digital Display Wall Clock Guide

Page 38

 

 

 

2-Wire Pulse Alternating (24VDC)

H

M

115VAC

Local

Power

24VDC From Master Clock

GRND

AC IN

AC RTN

A

B

BLK

BLK

VIO / WHT

YEL / WHT

To

Other Clocks

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.

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 manual Grnd AC RTN BLK VIO / WHT YEL / WHT, Wire Pulse Alternating 24VDC