Lathem DDC2 manual Blk Yel, Standard Electric AR-2A 2-Wire Dual Voltage

Page 33

Page 27	Digital Display Wall Clock Guide	DDC2 / 4-RS Wiring

Standard Electric AR-2A 2-Wire Dual Voltage

	H
	M
115VAC	GRND	BLK
Local	AC IN
Power	AC RTN
24VDC / 48VDC	AB
From

Master Clock	PC

Clock must be set to actual time. Use of a 9Volt alkaline battery is recommended to avoid resets after power failures.

BLK	YEL	BRN
	/ 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

Image 33

Contents Installation & Users Guide Lathem Time Corporation Table of Contents Page Page Page Clock Operation IntroductionAbout this Manual DDC-TC Optional AccessoriesPage Setting the DIP Switches DDC2 / DDC4 Series Configuring the DDC Series Wall ClockDIP Switch Settings Configuring RS485 Communications DDC2/4-RS Series Battery Usage DDC2 / DDC4 SeriesDDC2/4-RS / DDC2/4-RS-24 Power Cord Installation DDC2/4-RS Battery Installation DDC2 / DDC4 SeriesSecondary Wiring Wiring Installation DDC2/4-RS SeriesRS485 Wiring DDC-TC WiringReplacing an Existing DDC4 Wall Clock Board Layout DiagramMounting to a Wall Mounting DDC2 / DDC4 SeriesMounting to a Single Gang Box DDC2 Double Mount Wall DDC2 Double Mount Wall DDC4 Double Mount Wall Double Mount Ceiling DDC2 Double Mount Ceiling DDC4 Double Mount Ceiling Time Formats Setting the TimeAppendix a DDC2-RS / 4-RS Secondary Clock Wiring Diagrams BLKStand-Alone 115VAC WHT Wire Synchronous 115VACGrnd Wire Synchronous 24VAC CorrectionAC RTN BLK BRN / WHT BLU / WHTWire minute Impulse 59th Minute Grnd BLKYEL / WHT VIO / WHT BRN / WHT BLK YEL / WHT VIO / WHT BRN / WHT Wire Minute Impulse 59th Minute With 12 Hour CorrectionStandard Electric Synchronous BLK YEL Standard Electric AR-2A 2-Wire Dual VoltageStandard Electric AR-2 2-Wire Dual Voltage Synchronous Wired Simplex 59th Minute Dual Motor Simplex 45th Minute Dual Motor Edwards Dual Motor BLK YEL / WHT VIO / WHT BRN/ WHT Standard Electric AR-3 3-Wire Minute ImpulseNational Synchronous Wired Stromberg Synchronous Wired 56th Minute Cincinnati D1 CommonCincinnati D6, Edwards VIOGrnd AC RTN BLK VIO / WHT YEL / WHT Wire Pulse Alternating 24VDCElectronic Coded Grnd AC in AC RTN BLK BLUStraight Frequency Grnd AC AC RTN BLK BLUWire Minute Impulse 58th Minute Wire Minute Impulse 44th Minute VIO / WHT YEL / WHT Wire Reverse Polarity Minute Impulse 59th MinuteAppendix B DDC2-RS-24 / DDC4-RS-24 Wiring DDC2-RS-24 / DDC4-RS-24 Wiring RS485 Data Format Appendix C RS485 Wiring DiagramsGND OMCJP4 Omcii to DDC2-RS / 4-RSLTR0 to DDC2-RS / 4-RS BLK HLTR4 / 8-512 to DDC2-RS / 4-RS + of JP4Wiring Appendix D DDC-TC Timer Control PanelTimer Control InstallationAs a Count Down Timer Operation As a Count Up TimerLTR-0 Appendix E LTR-GPS Satellite Receiver / Clock SynchronizerPage Connecting to a Lathem DDC2-RS or DDC4-RS Digital Clock DDC2 / DDC4 Appendix F SpecificationsLimited One-Year Limited Warranty Appendix G Warranty

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