Table of Contents | Lathem DDC4, DDC2 specs

Table of Contents
Introduction	1
Clock Operation	1
About this Manual	2
Optional Accessories	3
Configuring the DDC Series Wall Clock	4
Setting the DIP Switches - DDC2 / DDC4 Series	5
DDC2	5
DDC4	5
DIP Switch Settings	6
Configuring RS485 Communications - DDC2/4-RS Series	7
DDC2-RS	7
DDC4-RS	7
Battery Usage - DDC2 / DDC4 Series	7
DDC2/4-RS /DDC2/4-RS-24	7
Battery Installation - DDC2 / DDC4 Series	8
DDC2	8
DDC4	8
Power Cord Installation - DDC2/4-RS	8
DDC2-RS	8
DDC4-RS	9
Wiring Installation - DDC2/4-RS Series	9
Secondary Wiring	9
RS485 Wiring	9
DDC-TC Wiring	9
Replacing an Existing DDC4 Wall Clock	10
Board Layout Diagram	10
Mounting - DDC2 / DDC4 Series	11
Mounting to a Wall	11
DDC2	11
DDC4	12
Mounting to a Single Gang Box	12
DDC2	13
DDC4	13
Double Mount - Wall	14
DDC2 (Double Mount - Wall)	15
DDC4 (Double Mount - Wall)	16
Double Mount - Ceiling	16
Double Mount - Ceiling	17

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Lathem DDC4, DDC2 manual Table of Contents

Contents

Installation & Users Guide Lathem Time Corporation Table of Contents Page Page Page Clock Operation Introduction About this Manual DDC-TC Optional AccessoriesPage Setting the DIP Switches DDC2 / DDC4 Series Configuring the DDC Series Wall Clock DIP 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 Series DDC-TC Wiring Wiring Installation DDC2/4-RS SeriesSecondary Wiring RS485 Wiring Replacing an Existing DDC4 Wall Clock Board Layout Diagram Mounting to a Wall Mounting DDC2 / DDC4 Series Mounting 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 Time Stand-Alone 115VAC Appendix a DDC2-RS / 4-RS Secondary Clock Wiring DiagramsGrnd BLK BRN / WHT BLU / WHT Wire Synchronous 115VAC BLU Wire Synchronous 24VACGrnd BLK AC RTN YEL / WHT VIO / WHT BRN / WHT Wire minute Impulse 59th Minute BLK YEL / WHT VIO / WHT BRN / WHT Wire Minute Impulse 59th Minute With 12 Hour Correction Standard Electric Synchronous BLK YEL Standard Electric AR-2A 2-Wire Dual Voltage Standard 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 Impulse National Synchronous Wired Stromberg Synchronous Wired 56th Minute Cincinnati D1 Common Cincinnati D6, Edwards BLK VIO / WHT YEL / WHT VIO / WHT YEL / WHT Wire Pulse Alternating 24VDC Electronic Coded Grnd AC RTN BLK BLU Straight Frequency Wire Minute Impulse 58th Minute Wire Minute Impulse 44th Minute Wire Reverse Polarity Minute Impulse 59th Minute Appendix B DDC2-RS-24 / DDC4-RS-24 Wiring BLK BRN / WHT BLU / WHT DDC2-RS-24 / DDC4-RS-24 Wiring RS485 Data Format Appendix C RS485 Wiring Diagrams OMC GNDOmcii to DDC2-RS / 4-RS LTR0 to DDC2-RS / 4-RS BLK H LTR4 / 8-512 to DDC2-RS / 4-RS Terminal # Signal JP4 Connection Wiring Appendix D DDC-TC Timer Control Panel Timer Control Installation As a Count Down Timer Operation As a Count Up Timer DWA-S Appendix E LTR-GPS Satellite Receiver / Clock SynchronizerPage Connecting to a Lathem DDC2-RS or DDC4-RS Digital Clock DDC2 / DDC4 Appendix F Specifications Limited One-Year Limited Warranty Appendix G Warranty