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Digital Display Wall Clock Guide

DDC2 / 4-RS Wiring

Standard Electric AR-3 3-Wire Minute Impulse

H

M

 

 

 

 

 

 

 

 

 

BLK

115VAC

GRND

 

 

 

 

 

 

Local

AC IN

 

 

 

 

 

 

 

 

 

 

 

 

Power

AC RTN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24VDC / 48VDC

24 VDC Pulse

 

From

 

48 VDC Correction

 

 

 

Master Clock

 

 

 

 

 

 

 

 

 

 

 

Common

 

 

 

 

 

 

BLK

YEL / WHT

VIO / WHT

BRN/ WHT

To

Other Clocks

Clock must be set to actual time. 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

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Image 39
Lathem DDC4, DDC2 manual Blk Yel / Wht Vio / Wht Brn/ Wht, Standard Electric AR-3 3-Wire Minute Impulse